From 24305db864cd62bf4279f745528c3238cbaf1c12 Mon Sep 17 00:00:00 2001
From: Mayuresh Janorkar <mayur@ti.com>
Date: Tue, 17 May 2011 17:49:40 +0530
Subject: OMAP: DSS2: Add picodlp panel driver

PicoDLP is a micro projector from TI.

DLP used in OMAP4 is dpp2600 (DLP Pico Projector) The DLP requires
commands to be sent over i2c for configurations. To know more about
dpp2600 commands please visit:
https://focus.ti.com/myti/docs/extranet.tsp?sectionId=403

The picodlp module consists of a dss driver and an i2c_client.

To know more please visit:
http://www.omappedia.org/wiki/PicoDLP_projector_guide

Based on original design from Mythri P K <mythripk@ti.com>

Signed-off-by: Mayuresh Janorkar <mayur@ti.com>
Signed-off-by: Mythri P K <mythripk@ti.com>
[tomi.valkeinen@ti.com: squashed commits]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 include/video/omap-panel-picodlp.h | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 include/video/omap-panel-picodlp.h

(limited to 'include/video')

diff --git a/include/video/omap-panel-picodlp.h b/include/video/omap-panel-picodlp.h
new file mode 100644
index 000000000000..1c342ef6f3a1
--- /dev/null
+++ b/include/video/omap-panel-picodlp.h
@@ -0,0 +1,23 @@
+/*
+ * panel data for picodlp panel
+ *
+ * Copyright (C) 2011 Texas Instruments
+ *
+ * Author: Mayuresh Janorkar <mayur@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __PANEL_PICODLP_H
+#define __PANEL_PICODLP_H
+/**
+ * struct : picodlp panel data
+ * picodlp_adapter_id:	i2c_adapter number for picodlp
+ */
+struct picodlp_panel_data {
+	int picodlp_adapter_id;
+	int emu_done_gpio;
+	int pwrgood_gpio;
+};
+#endif /* __PANEL_PICODLP_H */
-- 
cgit 1.4.1


From 5bc416cba15f43c799fc02727c6d6887f3e35a4e Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 15 Jun 2011 15:21:12 +0300
Subject: OMAP: DSS2: DSI: Improve dsi_mux_pads parameters

dsi_mux_pads() needs to know about the DSI HW module and the DSI lanes
used. Split the function into two, enable and disable, which take
necessary arguments, and add empty implementations for both.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 arch/arm/mach-omap2/display.c | 14 ++++++++++++++
 drivers/video/omap2/dss/dsi.c | 42 +++++++++++++++++++++++++++++++-----------
 include/video/omapdss.h       |  3 ++-
 3 files changed, 47 insertions(+), 12 deletions(-)

(limited to 'include/video')

diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index c42df111c9d2..7c6011df80a8 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -74,6 +74,15 @@ static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initdata = {
 	{ "dss_hdmi", "omapdss_hdmi", -1 },
 };
 
+static int omap_dsi_enable_pads(int dsi_id, unsigned lane_mask)
+{
+	return 0;
+}
+
+static void omap_dsi_disable_pads(int dsi_id, unsigned lane_mask)
+{
+}
+
 int __init omap_display_init(struct omap_dss_board_info *board_data)
 {
 	int r = 0;
@@ -96,6 +105,11 @@ int __init omap_display_init(struct omap_dss_board_info *board_data)
 		oh_count = ARRAY_SIZE(omap4_dss_hwmod_data);
 	}
 
+	if (board_data->dsi_enable_pads == NULL)
+		board_data->dsi_enable_pads = omap_dsi_enable_pads;
+	if (board_data->dsi_disable_pads == NULL)
+		board_data->dsi_disable_pads = omap_dsi_disable_pads;
+
 	pdata.board_data = board_data;
 	pdata.board_data->get_context_loss_count =
 		omap_pm_get_dev_context_loss_count;
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 713e1d9ac0ec..ae6bf1d46c97 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -274,7 +274,8 @@ struct dsi_data {
 	struct clk *dss_clk;
 	struct clk *sys_clk;
 
-	void (*dsi_mux_pads)(bool enable);
+	int (*enable_pads)(int dsi_id, unsigned lane_mask);
+	void (*disable_pads)(int dsi_id, unsigned lane_mask);
 
 	struct dsi_clock_info current_cinfo;
 
@@ -2355,6 +2356,24 @@ static int dsi_cio_wait_tx_clk_esc_reset(struct omap_dss_device *dssdev)
 	return 0;
 }
 
+static unsigned dsi_get_lane_mask(struct omap_dss_device *dssdev)
+{
+	unsigned lanes = 0;
+
+	if (dssdev->phy.dsi.clk_lane != 0)
+		lanes |= 1 << (dssdev->phy.dsi.clk_lane - 1);
+	if (dssdev->phy.dsi.data1_lane != 0)
+		lanes |= 1 << (dssdev->phy.dsi.data1_lane - 1);
+	if (dssdev->phy.dsi.data2_lane != 0)
+		lanes |= 1 << (dssdev->phy.dsi.data2_lane - 1);
+	if (dssdev->phy.dsi.data3_lane != 0)
+		lanes |= 1 << (dssdev->phy.dsi.data3_lane - 1);
+	if (dssdev->phy.dsi.data4_lane != 0)
+		lanes |= 1 << (dssdev->phy.dsi.data4_lane - 1);
+
+	return lanes;
+}
+
 static int dsi_cio_init(struct omap_dss_device *dssdev)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
@@ -2365,8 +2384,9 @@ static int dsi_cio_init(struct omap_dss_device *dssdev)
 
 	DSSDBGF();
 
-	if (dsi->dsi_mux_pads)
-		dsi->dsi_mux_pads(true);
+	r = dsi->enable_pads(dsidev->id, dsi_get_lane_mask(dssdev));
+	if (r)
+		return r;
 
 	dsi_enable_scp_clk(dsidev);
 
@@ -2462,19 +2482,18 @@ err_cio_pwr:
 		dsi_cio_disable_lane_override(dsidev);
 err_scp_clk_dom:
 	dsi_disable_scp_clk(dsidev);
-	if (dsi->dsi_mux_pads)
-		dsi->dsi_mux_pads(false);
+	dsi->disable_pads(dsidev->id, dsi_get_lane_mask(dssdev));
 	return r;
 }
 
-static void dsi_cio_uninit(struct platform_device *dsidev)
+static void dsi_cio_uninit(struct omap_dss_device *dssdev)
 {
+	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 
 	dsi_cio_power(dsidev, DSI_COMPLEXIO_POWER_OFF);
 	dsi_disable_scp_clk(dsidev);
-	if (dsi->dsi_mux_pads)
-		dsi->dsi_mux_pads(false);
+	dsi->disable_pads(dsidev->id, dsi_get_lane_mask(dssdev));
 }
 
 static void dsi_config_tx_fifo(struct platform_device *dsidev,
@@ -4161,7 +4180,7 @@ static int dsi_display_init_dsi(struct omap_dss_device *dssdev)
 
 	return 0;
 err3:
-	dsi_cio_uninit(dsidev);
+	dsi_cio_uninit(dssdev);
 err2:
 	dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
 	dss_select_dsi_clk_source(dsi_module, OMAP_DSS_CLK_SRC_FCK);
@@ -4190,7 +4209,7 @@ static void dsi_display_uninit_dsi(struct omap_dss_device *dssdev,
 
 	dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
 	dss_select_dsi_clk_source(dsi_module, OMAP_DSS_CLK_SRC_FCK);
-	dsi_cio_uninit(dsidev);
+	dsi_cio_uninit(dssdev);
 	dsi_pll_uninit(dsidev, disconnect_lanes);
 }
 
@@ -4481,7 +4500,8 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
 
 	dss_plat_data = dsidev->dev.platform_data;
 	board_info = dss_plat_data->board_data;
-	dsi->dsi_mux_pads = board_info->dsi_mux_pads;
+	dsi->enable_pads = board_info->dsi_enable_pads;
+	dsi->disable_pads = board_info->dsi_disable_pads;
 
 	spin_lock_init(&dsi->irq_lock);
 	spin_lock_init(&dsi->errors_lock);
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 3b55ef22f8db..c4d1d4ed909f 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -242,7 +242,8 @@ struct omap_dss_board_info {
 	int num_devices;
 	struct omap_dss_device **devices;
 	struct omap_dss_device *default_device;
-	void (*dsi_mux_pads)(bool enable);
+	int (*dsi_enable_pads)(int dsi_id, unsigned lane_mask);
+	void (*dsi_disable_pads)(int dsi_id, unsigned lane_mask);
 };
 
 #if defined(CONFIG_OMAP2_DSS_MODULE) || defined(CONFIG_OMAP2_DSS)
-- 
cgit 1.4.1


From 8fa8031c542986746ed4dfbd1eb52358bc86000b Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 16 Aug 2011 12:56:19 +0300
Subject: OMAP: DSS2: Handle manager change in apply

Currently when changing the manager of an overlay, set_manager() directly
calls dispc to set the overlay's destination.

Change this to be more in line with other overlay configurations, and
this will also remove the need to have dispc clocks enabled when calling
set_manager().

A new field is added to overlay struct, "manager_changed". This is
similar to "display_changed" field in manager struct, and is used to
inform apply that the manager has changed and thus write to the
registers is needed.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c   | 4 +++-
 drivers/video/omap2/dss/dss.h     | 2 --
 drivers/video/omap2/dss/manager.c | 5 +++++
 drivers/video/omap2/dss/overlay.c | 9 ++-------
 include/video/omapdss.h           | 1 +
 5 files changed, 11 insertions(+), 10 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 9d9fbeb5362e..003227c82b3f 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -841,7 +841,7 @@ static void _dispc_set_color_mode(enum omap_plane plane,
 	REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), m, 4, 1);
 }
 
-void dispc_set_channel_out(enum omap_plane plane,
+static void dispc_set_channel_out(enum omap_plane plane,
 		enum omap_channel channel)
 {
 	int shift;
@@ -1860,6 +1860,8 @@ int dispc_setup_plane(enum omap_plane plane,
 	_dispc_set_pre_mult_alpha(plane, pre_mult_alpha);
 	_dispc_setup_global_alpha(plane, global_alpha);
 
+	dispc_set_channel_out(plane, channel);
+
 	return 0;
 }
 
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index adeff04e964f..ff7ac35ec282 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -399,8 +399,6 @@ void dispc_set_plane_ba0(enum omap_plane plane, u32 paddr);
 void dispc_set_plane_ba1(enum omap_plane plane, u32 paddr);
 void dispc_set_plane_pos(enum omap_plane plane, u16 x, u16 y);
 void dispc_set_plane_size(enum omap_plane plane, u16 width, u16 height);
-void dispc_set_channel_out(enum omap_plane plane,
-		enum omap_channel channel_out);
 
 void dispc_enable_gamma_table(bool enable);
 int dispc_setup_plane(enum omap_plane plane,
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 63674b054d35..a6a909ae8670 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -1338,6 +1338,11 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 
 		oc = &dss_cache.overlay_cache[ovl->id];
 
+		if (ovl->manager_changed) {
+			ovl->manager_changed = false;
+			ovl->info_dirty  = true;
+		}
+
 		if (!overlay_enabled(ovl)) {
 			if (oc->enabled) {
 				oc->enabled = false;
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index c84380c53c39..ab444036146b 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -516,6 +516,7 @@ static int omap_dss_set_manager(struct omap_overlay *ovl,
 	}
 
 	ovl->manager = mgr;
+	ovl->manager_changed = true;
 
 	/* XXX: When there is an overlay on a DSI manual update display, and
 	 * the overlay is first disabled, then moved to tv, and enabled, we
@@ -529,15 +530,12 @@ static int omap_dss_set_manager(struct omap_overlay *ovl,
 	 * Userspace workaround for this is to update the LCD after disabling
 	 * the overlay, but before moving the overlay to TV.
 	 */
-	dispc_set_channel_out(ovl->id, mgr->id);
 
 	return 0;
 }
 
 static int omap_dss_unset_manager(struct omap_overlay *ovl)
 {
-	int r;
-
 	if (!ovl->manager) {
 		DSSERR("failed to detach overlay: manager not set\n");
 		return -EINVAL;
@@ -548,11 +546,8 @@ static int omap_dss_unset_manager(struct omap_overlay *ovl)
 		return -EINVAL;
 	}
 
-	r = ovl->wait_for_go(ovl);
-	if (r)
-		return r;
-
 	ovl->manager = NULL;
+	ovl->manager_changed = true;
 
 	return 0;
 }
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index c4d1d4ed909f..ecde53f71bd2 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -333,6 +333,7 @@ struct omap_overlay {
 	struct omap_overlay_manager *manager;
 	struct omap_overlay_info info;
 
+	bool manager_changed;
 	/* if true, info has been changed, but not applied() yet */
 	bool info_dirty;
 
-- 
cgit 1.4.1


From 4a9e78abb76a2f1ddccab7098bdf73a2f095aaa6 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 15 Aug 2011 11:22:21 +0300
Subject: OMAP: DSS2: Remove support for non-DISPC overlays

Remove support for non-DISPC overlays and overlay managers.

The support to possibly have non-DISPC overlays and managers was made to
make it possible to use CPU and/or sDMA to update RFBI or DSI command
mode displays. It is ok to remove the support, because:

- No one has used the feature.
- Display update without DISPC is very slow, so it is debatable if the
  update would even be usable.
- Removal cleans up code.
- If such a feature is needed later, it is better implemented outside
  omapdss driver.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Archit Taneja <archit@ti.com>
---
 drivers/video/omap2/dss/dispc.c   |  22 +----
 drivers/video/omap2/dss/dsi.c     | 190 +++-----------------------------------
 drivers/video/omap2/dss/manager.c |  47 +---------
 drivers/video/omap2/dss/overlay.c |   8 +-
 drivers/video/omap2/dss/rfbi.c    |  23 +----
 include/video/omapdss.h           |   7 +-
 6 files changed, 22 insertions(+), 275 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 003227c82b3f..43dbfb1da778 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3058,9 +3058,6 @@ static void dispc_error_worker(struct work_struct *work)
 			struct omap_overlay *ovl;
 			ovl = omap_dss_get_overlay(i);
 
-			if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
-				continue;
-
 			if (ovl->id == 0) {
 				dispc_enable_plane(ovl->id, 0);
 				dispc_go(ovl->manager->id);
@@ -3076,9 +3073,6 @@ static void dispc_error_worker(struct work_struct *work)
 			struct omap_overlay *ovl;
 			ovl = omap_dss_get_overlay(i);
 
-			if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
-				continue;
-
 			if (ovl->id == 1) {
 				dispc_enable_plane(ovl->id, 0);
 				dispc_go(ovl->manager->id);
@@ -3094,9 +3088,6 @@ static void dispc_error_worker(struct work_struct *work)
 			struct omap_overlay *ovl;
 			ovl = omap_dss_get_overlay(i);
 
-			if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
-				continue;
-
 			if (ovl->id == 2) {
 				dispc_enable_plane(ovl->id, 0);
 				dispc_go(ovl->manager->id);
@@ -3131,9 +3122,6 @@ static void dispc_error_worker(struct work_struct *work)
 				struct omap_overlay *ovl;
 				ovl = omap_dss_get_overlay(i);
 
-				if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
-					continue;
-
 				if (ovl->id != 0 && ovl->manager == manager)
 					dispc_enable_plane(ovl->id, 0);
 			}
@@ -3170,9 +3158,6 @@ static void dispc_error_worker(struct work_struct *work)
 				struct omap_overlay *ovl;
 				ovl = omap_dss_get_overlay(i);
 
-				if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
-					continue;
-
 				if (ovl->id != 0 && ovl->manager == manager)
 					dispc_enable_plane(ovl->id, 0);
 			}
@@ -3209,9 +3194,6 @@ static void dispc_error_worker(struct work_struct *work)
 				struct omap_overlay *ovl;
 				ovl = omap_dss_get_overlay(i);
 
-				if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
-					continue;
-
 				if (ovl->id != 0 && ovl->manager == manager)
 					dispc_enable_plane(ovl->id, 0);
 			}
@@ -3228,9 +3210,7 @@ static void dispc_error_worker(struct work_struct *work)
 		for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
 			struct omap_overlay_manager *mgr;
 			mgr = omap_dss_get_overlay_manager(i);
-
-			if (mgr->caps & OMAP_DSS_OVL_CAP_DISPC)
-				mgr->device->driver->disable(mgr->device);
+			mgr->device->driver->disable(mgr->device);
 		}
 	}
 
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index c951a75e7021..bd0ff1d64497 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -3648,161 +3648,6 @@ static void dsi_proto_timings(struct omap_dss_device *dssdev)
 			enter_hs_mode_lat, exit_hs_mode_lat);
 }
 
-
-#define DSI_DECL_VARS \
-	int __dsi_cb = 0; u32 __dsi_cv = 0;
-
-#define DSI_FLUSH(dsidev, ch) \
-	if (__dsi_cb > 0) { \
-		/*DSSDBG("sending long packet %#010x\n", __dsi_cv);*/ \
-		dsi_write_reg(dsidev, DSI_VC_LONG_PACKET_PAYLOAD(ch), __dsi_cv); \
-		__dsi_cb = __dsi_cv = 0; \
-	}
-
-#define DSI_PUSH(dsidev, ch, data) \
-	do { \
-		__dsi_cv |= (data) << (__dsi_cb * 8); \
-		/*DSSDBG("cv = %#010x, cb = %d\n", __dsi_cv, __dsi_cb);*/ \
-		if (++__dsi_cb > 3) \
-			DSI_FLUSH(dsidev, ch); \
-	} while (0)
-
-static int dsi_update_screen_l4(struct omap_dss_device *dssdev,
-			int x, int y, int w, int h)
-{
-	/* Note: supports only 24bit colors in 32bit container */
-	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
-	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
-	int first = 1;
-	int fifo_stalls = 0;
-	int max_dsi_packet_size;
-	int max_data_per_packet;
-	int max_pixels_per_packet;
-	int pixels_left;
-	int bytespp = dssdev->ctrl.pixel_size / 8;
-	int scr_width;
-	u32 __iomem *data;
-	int start_offset;
-	int horiz_inc;
-	int current_x;
-	struct omap_overlay *ovl;
-
-	debug_irq = 0;
-
-	DSSDBG("dsi_update_screen_l4 (%d,%d %dx%d)\n",
-			x, y, w, h);
-
-	ovl = dssdev->manager->overlays[0];
-
-	if (ovl->info.color_mode != OMAP_DSS_COLOR_RGB24U)
-		return -EINVAL;
-
-	if (dssdev->ctrl.pixel_size != 24)
-		return -EINVAL;
-
-	scr_width = ovl->info.screen_width;
-	data = ovl->info.vaddr;
-
-	start_offset = scr_width * y + x;
-	horiz_inc = scr_width - w;
-	current_x = x;
-
-	/* We need header(4) + DCSCMD(1) + pixels(numpix*bytespp) bytes
-	 * in fifo */
-
-	/* When using CPU, max long packet size is TX buffer size */
-	max_dsi_packet_size = dsi->vc[0].fifo_size * 32 * 4;
-
-	/* we seem to get better perf if we divide the tx fifo to half,
-	   and while the other half is being sent, we fill the other half
-	   max_dsi_packet_size /= 2; */
-
-	max_data_per_packet = max_dsi_packet_size - 4 - 1;
-
-	max_pixels_per_packet = max_data_per_packet / bytespp;
-
-	DSSDBG("max_pixels_per_packet %d\n", max_pixels_per_packet);
-
-	pixels_left = w * h;
-
-	DSSDBG("total pixels %d\n", pixels_left);
-
-	data += start_offset;
-
-	while (pixels_left > 0) {
-		/* 0x2c = write_memory_start */
-		/* 0x3c = write_memory_continue */
-		u8 dcs_cmd = first ? 0x2c : 0x3c;
-		int pixels;
-		DSI_DECL_VARS;
-		first = 0;
-
-#if 1
-		/* using fifo not empty */
-		/* TX_FIFO_NOT_EMPTY */
-		while (FLD_GET(dsi_read_reg(dsidev, DSI_VC_CTRL(0)), 5, 5)) {
-			fifo_stalls++;
-			if (fifo_stalls > 0xfffff) {
-				DSSERR("fifo stalls overflow, pixels left %d\n",
-						pixels_left);
-				dsi_if_enable(dsidev, 0);
-				return -EIO;
-			}
-			udelay(1);
-		}
-#elif 1
-		/* using fifo emptiness */
-		while ((REG_GET(dsidev, DSI_TX_FIFO_VC_EMPTINESS, 7, 0)+1)*4 <
-				max_dsi_packet_size) {
-			fifo_stalls++;
-			if (fifo_stalls > 0xfffff) {
-				DSSERR("fifo stalls overflow, pixels left %d\n",
-					       pixels_left);
-				dsi_if_enable(dsidev, 0);
-				return -EIO;
-			}
-		}
-#else
-		while ((REG_GET(dsidev, DSI_TX_FIFO_VC_EMPTINESS,
-				7, 0) + 1) * 4 == 0) {
-			fifo_stalls++;
-			if (fifo_stalls > 0xfffff) {
-				DSSERR("fifo stalls overflow, pixels left %d\n",
-					       pixels_left);
-				dsi_if_enable(dsidev, 0);
-				return -EIO;
-			}
-		}
-#endif
-		pixels = min(max_pixels_per_packet, pixels_left);
-
-		pixels_left -= pixels;
-
-		dsi_vc_write_long_header(dsidev, 0, DSI_DT_DCS_LONG_WRITE,
-				1 + pixels * bytespp, 0);
-
-		DSI_PUSH(dsidev, 0, dcs_cmd);
-
-		while (pixels-- > 0) {
-			u32 pix = __raw_readl(data++);
-
-			DSI_PUSH(dsidev, 0, (pix >> 16) & 0xff);
-			DSI_PUSH(dsidev, 0, (pix >> 8) & 0xff);
-			DSI_PUSH(dsidev, 0, (pix >> 0) & 0xff);
-
-			current_x++;
-			if (current_x == x+w) {
-				current_x = x;
-				data += horiz_inc;
-			}
-		}
-
-		DSI_FLUSH(dsidev, 0);
-	}
-
-	return 0;
-}
-
 static void dsi_update_screen_dispc(struct omap_dss_device *dssdev,
 		u16 x, u16 y, u16 w, u16 h)
 {
@@ -3970,11 +3815,9 @@ int omap_dsi_prepare_update(struct omap_dss_device *dssdev,
 
 	dsi_perf_mark_setup(dsidev);
 
-	if (dssdev->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
-		dss_setup_partial_planes(dssdev, x, y, w, h,
-				enlarge_update_area);
-		dispc_set_lcd_size(dssdev->manager->id, *w, *h);
-	}
+	dss_setup_partial_planes(dssdev, x, y, w, h,
+			enlarge_update_area);
+	dispc_set_lcd_size(dssdev->manager->id, *w, *h);
 
 	return 0;
 }
@@ -3996,27 +3839,16 @@ int omap_dsi_update(struct omap_dss_device *dssdev,
 	 * see rather obscure HW error happening, as DSS halts. */
 	BUG_ON(x % 2 == 1);
 
-	if (dssdev->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
-		dsi->framedone_callback = callback;
-		dsi->framedone_data = data;
-
-		dsi->update_region.x = x;
-		dsi->update_region.y = y;
-		dsi->update_region.w = w;
-		dsi->update_region.h = h;
-		dsi->update_region.device = dssdev;
-
-		dsi_update_screen_dispc(dssdev, x, y, w, h);
-	} else {
-		int r;
+	dsi->framedone_callback = callback;
+	dsi->framedone_data = data;
 
-		r = dsi_update_screen_l4(dssdev, x, y, w, h);
-		if (r)
-			return r;
+	dsi->update_region.x = x;
+	dsi->update_region.y = y;
+	dsi->update_region.w = w;
+	dsi->update_region.h = h;
+	dsi->update_region.device = dssdev;
 
-		dsi_perf_show(dsidev, "L4");
-		callback(0, data);
-	}
+	dsi_update_screen_dispc(dssdev, x, y, w, h);
 
 	return 0;
 }
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index a6a909ae8670..72e041b3a66e 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -1333,9 +1333,6 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 
 		ovl = omap_dss_get_overlay(i);
 
-		if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
-			continue;
-
 		oc = &dss_cache.overlay_cache[ovl->id];
 
 		if (ovl->manager_changed) {
@@ -1387,9 +1384,6 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 	list_for_each_entry(mgr, &manager_list, list) {
 		struct omap_dss_device *dssdev;
 
-		if (!(mgr->caps & OMAP_DSS_OVL_MGR_CAP_DISPC))
-			continue;
-
 		mc = &dss_cache.manager_cache[mgr->id];
 
 		if (mgr->device_changed) {
@@ -1435,9 +1429,6 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 
 		ovl = omap_dss_get_overlay(i);
 
-		if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
-			continue;
-
 		oc = &dss_cache.overlay_cache[ovl->id];
 
 		if (!oc->enabled)
@@ -1592,7 +1583,7 @@ int dss_init_overlay_managers(struct platform_device *pdev)
 		mgr->enable = &dss_mgr_enable;
 		mgr->disable = &dss_mgr_disable;
 
-		mgr->caps = OMAP_DSS_OVL_MGR_CAP_DISPC;
+		mgr->caps = 0;
 		mgr->supported_displays =
 			dss_feat_get_supported_displays(mgr->id);
 
@@ -1609,42 +1600,6 @@ int dss_init_overlay_managers(struct platform_device *pdev)
 		}
 	}
 
-#ifdef L4_EXAMPLE
-	{
-		int omap_dss_mgr_apply_l4(struct omap_overlay_manager *mgr)
-		{
-			DSSDBG("omap_dss_mgr_apply_l4(%s)\n", mgr->name);
-
-			return 0;
-		}
-
-		struct omap_overlay_manager *mgr;
-		mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
-
-		BUG_ON(mgr == NULL);
-
-		mgr->name = "l4";
-		mgr->supported_displays =
-			OMAP_DISPLAY_TYPE_DBI | OMAP_DISPLAY_TYPE_DSI;
-
-		mgr->set_device = &omap_dss_set_device;
-		mgr->unset_device = &omap_dss_unset_device;
-		mgr->apply = &omap_dss_mgr_apply_l4;
-		mgr->set_manager_info = &omap_dss_mgr_set_info;
-		mgr->get_manager_info = &omap_dss_mgr_get_info;
-
-		dss_overlay_setup_l4_manager(mgr);
-
-		omap_dss_add_overlay_manager(mgr);
-
-		r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
-				&pdev->dev.kobj, "managerl4");
-
-		if (r)
-			DSSERR("failed to create sysfs file\n");
-	}
-#endif
-
 	return 0;
 }
 
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index ab444036146b..0b21af95b48c 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -613,21 +613,19 @@ void dss_init_overlays(struct platform_device *pdev)
 		case 0:
 			ovl->name = "gfx";
 			ovl->id = OMAP_DSS_GFX;
-			ovl->caps = OMAP_DSS_OVL_CAP_DISPC;
+			ovl->caps = 0;
 			ovl->info.global_alpha = 255;
 			break;
 		case 1:
 			ovl->name = "vid1";
 			ovl->id = OMAP_DSS_VIDEO1;
-			ovl->caps = OMAP_DSS_OVL_CAP_SCALE |
-				OMAP_DSS_OVL_CAP_DISPC;
+			ovl->caps = OMAP_DSS_OVL_CAP_SCALE;
 			ovl->info.global_alpha = 255;
 			break;
 		case 2:
 			ovl->name = "vid2";
 			ovl->id = OMAP_DSS_VIDEO2;
-			ovl->caps = OMAP_DSS_OVL_CAP_SCALE |
-				OMAP_DSS_OVL_CAP_DISPC;
+			ovl->caps = OMAP_DSS_OVL_CAP_SCALE;
 			ovl->info.global_alpha = 255;
 			break;
 		}
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index 50394badec15..b605066c176b 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -783,10 +783,8 @@ int omap_rfbi_prepare_update(struct omap_dss_device *dssdev,
 	if (*w == 0 || *h == 0)
 		return -EINVAL;
 
-	if (dssdev->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
-		dss_setup_partial_planes(dssdev, x, y, w, h, true);
-		dispc_set_lcd_size(dssdev->manager->id, *w, *h);
-	}
+	dss_setup_partial_planes(dssdev, x, y, w, h, true);
+	dispc_set_lcd_size(dssdev->manager->id, *w, *h);
 
 	return 0;
 }
@@ -796,22 +794,7 @@ int omap_rfbi_update(struct omap_dss_device *dssdev,
 		u16 x, u16 y, u16 w, u16 h,
 		void (*callback)(void *), void *data)
 {
-	if (dssdev->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
-		rfbi_transfer_area(dssdev, w, h, callback, data);
-	} else {
-		struct omap_overlay *ovl;
-		void __iomem *addr;
-		int scr_width;
-
-		ovl = dssdev->manager->overlays[0];
-		scr_width = ovl->info.screen_width;
-		addr = ovl->info.vaddr;
-
-		omap_rfbi_write_pixels(addr, scr_width, x, y, w, h);
-
-		callback(data);
-	}
-
+	rfbi_transfer_area(dssdev, w, h, callback, data);
 	return 0;
 }
 EXPORT_SYMBOL(omap_rfbi_update);
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index ecde53f71bd2..cb1ff1a6b5ee 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -162,11 +162,10 @@ enum omap_dss_rotation_angle {
 
 enum omap_overlay_caps {
 	OMAP_DSS_OVL_CAP_SCALE = 1 << 0,
-	OMAP_DSS_OVL_CAP_DISPC = 1 << 1,
 };
 
 enum omap_overlay_manager_caps {
-	OMAP_DSS_OVL_MGR_CAP_DISPC = 1 << 0,
+	OMAP_DSS_DUMMY_VALUE, /* add a dummy value to prevent compiler error */
 };
 
 enum omap_dss_clk_source {
@@ -325,7 +324,7 @@ struct omap_overlay {
 
 	/* static fields */
 	const char *name;
-	int id;
+	enum omap_plane id;
 	enum omap_color_mode supported_modes;
 	enum omap_overlay_caps caps;
 
@@ -368,7 +367,7 @@ struct omap_overlay_manager {
 
 	/* static fields */
 	const char *name;
-	int id;
+	enum omap_channel id;
 	enum omap_overlay_manager_caps caps;
 	int num_overlays;
 	struct omap_overlay **overlays;
-- 
cgit 1.4.1


From f6dc815098bde08c09fd1219e0f77663f8a9a6c7 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 15 Aug 2011 15:18:20 +0300
Subject: OMAP: DSS2: Add GLOBAL_ALPHA & PRE_MULT_ALPHA to ovl caps

Add OMAP_DSS_OVL_CAP_GLOBAL_ALPHA and OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA to
overlay capabilities. Use these instead of FEAT_GLOBAL_ALPHA,
FEAT_GLOBAL_ALPHA_VID1 and FEAT_PRE_MULT_ALPHA in code.

Remove FEAT_GLOBAL_ALPHA_VID1 and FEAT_PRE_MULT_ALPHA which are no
longer used. FEAT_GLOBAL_ALPHA is still used to decide if the HW has
global alpha register.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Archit Taneja <archit@ti.com>
---
 drivers/video/omap2/dss/dispc.c        | 13 ++++---------
 drivers/video/omap2/dss/dss_features.c | 27 +++++++++++++++------------
 drivers/video/omap2/dss/dss_features.h |  2 --
 drivers/video/omap2/dss/overlay.c      | 23 ++++++-----------------
 include/video/omapdss.h                |  2 ++
 5 files changed, 27 insertions(+), 40 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 2a0fb5ca13d6..343b99acf523 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -725,11 +725,9 @@ static void _dispc_set_vid_size(enum omap_plane plane, int width, int height)
 
 static void _dispc_set_pre_mult_alpha(enum omap_plane plane, bool enable)
 {
-	if (!dss_has_feature(FEAT_PRE_MULT_ALPHA))
-		return;
+	struct omap_overlay *ovl = omap_dss_get_overlay(plane);
 
-	if (!dss_has_feature(FEAT_GLOBAL_ALPHA_VID1) &&
-		plane == OMAP_DSS_VIDEO1)
+	if ((ovl->caps & OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA) == 0)
 		return;
 
 	REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), enable ? 1 : 0, 28, 28);
@@ -739,12 +737,9 @@ static void _dispc_setup_global_alpha(enum omap_plane plane, u8 global_alpha)
 {
 	static const unsigned shifts[] = { 0, 8, 16, };
 	int shift;
+	struct omap_overlay *ovl = omap_dss_get_overlay(plane);
 
-	if (!dss_has_feature(FEAT_GLOBAL_ALPHA))
-		return;
-
-	if (!dss_has_feature(FEAT_GLOBAL_ALPHA_VID1) &&
-		plane == OMAP_DSS_VIDEO1)
+	if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
 		return;
 
 	shift = shifts[plane];
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index 6bf508de3c32..b63c5f8d9151 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -225,35 +225,38 @@ static const enum omap_overlay_caps omap2_dss_overlay_caps[] = {
 
 static const enum omap_overlay_caps omap3430_dss_overlay_caps[] = {
 	/* OMAP_DSS_GFX */
-	0,
+	OMAP_DSS_OVL_CAP_GLOBAL_ALPHA,
 
 	/* OMAP_DSS_VIDEO1 */
 	OMAP_DSS_OVL_CAP_SCALE,
 
 	/* OMAP_DSS_VIDEO2 */
-	OMAP_DSS_OVL_CAP_SCALE,
+	OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_GLOBAL_ALPHA,
 };
 
 static const enum omap_overlay_caps omap3630_dss_overlay_caps[] = {
 	/* OMAP_DSS_GFX */
-	0,
+	OMAP_DSS_OVL_CAP_GLOBAL_ALPHA | OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA,
 
 	/* OMAP_DSS_VIDEO1 */
 	OMAP_DSS_OVL_CAP_SCALE,
 
 	/* OMAP_DSS_VIDEO2 */
-	OMAP_DSS_OVL_CAP_SCALE,
+	OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_GLOBAL_ALPHA |
+		OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA,
 };
 
 static const enum omap_overlay_caps omap4_dss_overlay_caps[] = {
 	/* OMAP_DSS_GFX */
-	0,
+	OMAP_DSS_OVL_CAP_GLOBAL_ALPHA | OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA,
 
 	/* OMAP_DSS_VIDEO1 */
-	OMAP_DSS_OVL_CAP_SCALE,
+	OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_GLOBAL_ALPHA |
+		OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA,
 
 	/* OMAP_DSS_VIDEO2 */
-	OMAP_DSS_OVL_CAP_SCALE,
+	OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_GLOBAL_ALPHA |
+		OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA,
 };
 
 static const char * const omap2_dss_clk_source_names[] = {
@@ -359,7 +362,7 @@ static const struct omap_dss_features omap3630_dss_features = {
 	.has_feature    =
 		FEAT_GLOBAL_ALPHA | FEAT_LCDENABLEPOL |
 		FEAT_LCDENABLESIGNAL | FEAT_PCKFREEENABLE |
-		FEAT_PRE_MULT_ALPHA | FEAT_FUNCGATED |
+		FEAT_FUNCGATED |
 		FEAT_ROWREPEATENABLE | FEAT_LINEBUFFERSPLIT |
 		FEAT_RESIZECONF | FEAT_DSI_PLL_PWR_BUG |
 		FEAT_DSI_PLL_FREQSEL | FEAT_CPR | FEAT_PRELOAD |
@@ -383,8 +386,8 @@ static const struct omap_dss_features omap4430_es1_0_dss_features  = {
 	.num_reg_fields = ARRAY_SIZE(omap4_dss_reg_fields),
 
 	.has_feature	=
-		FEAT_GLOBAL_ALPHA | FEAT_PRE_MULT_ALPHA |
-		FEAT_MGR_LCD2 | FEAT_GLOBAL_ALPHA_VID1 |
+		FEAT_GLOBAL_ALPHA |
+		FEAT_MGR_LCD2 |
 		FEAT_CORE_CLK_DIV | FEAT_LCD_CLK_SRC |
 		FEAT_DSI_DCS_CMD_CONFIG_VC | FEAT_DSI_VC_OCP_WIDTH |
 		FEAT_DSI_GNQ | FEAT_HANDLE_UV_SEPARATE | FEAT_ATTR2 |
@@ -407,8 +410,8 @@ static const struct omap_dss_features omap4_dss_features = {
 	.num_reg_fields = ARRAY_SIZE(omap4_dss_reg_fields),
 
 	.has_feature	=
-		FEAT_GLOBAL_ALPHA | FEAT_PRE_MULT_ALPHA |
-		FEAT_MGR_LCD2 | FEAT_GLOBAL_ALPHA_VID1 |
+		FEAT_GLOBAL_ALPHA |
+		FEAT_MGR_LCD2 |
 		FEAT_CORE_CLK_DIV | FEAT_LCD_CLK_SRC |
 		FEAT_DSI_DCS_CMD_CONFIG_VC | FEAT_DSI_VC_OCP_WIDTH |
 		FEAT_DSI_GNQ | FEAT_HDMI_CTS_SWMODE |
diff --git a/drivers/video/omap2/dss/dss_features.h b/drivers/video/omap2/dss/dss_features.h
index fd091967c950..4271e9661c90 100644
--- a/drivers/video/omap2/dss/dss_features.h
+++ b/drivers/video/omap2/dss/dss_features.h
@@ -28,8 +28,6 @@
 /* DSS has feature id */
 enum dss_feat_id {
 	FEAT_GLOBAL_ALPHA		= 1 << 0,
-	FEAT_GLOBAL_ALPHA_VID1		= 1 << 1,
-	FEAT_PRE_MULT_ALPHA		= 1 << 2,
 	FEAT_LCDENABLEPOL		= 1 << 3,
 	FEAT_LCDENABLESIGNAL		= 1 << 4,
 	FEAT_PCKFREEENABLE		= 1 << 5,
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index 777e23690bd1..62691d0a8aae 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -248,7 +248,7 @@ static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl,
 	u8 alpha;
 	struct omap_overlay_info info;
 
-	if (!dss_has_feature(FEAT_GLOBAL_ALPHA))
+	if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
 		return -ENODEV;
 
 	r = kstrtou8(buf, 0, &alpha);
@@ -257,14 +257,7 @@ static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl,
 
 	ovl->get_overlay_info(ovl, &info);
 
-	/* Video1 plane does not support global alpha
-	 * to always make it 255 completely opaque
-	 */
-	if (!dss_has_feature(FEAT_GLOBAL_ALPHA_VID1) &&
-			ovl->id == OMAP_DSS_VIDEO1)
-		info.global_alpha = 255;
-	else
-		info.global_alpha = alpha;
+	info.global_alpha = alpha;
 
 	r = ovl->set_overlay_info(ovl, &info);
 	if (r)
@@ -293,20 +286,16 @@ static ssize_t overlay_pre_mult_alpha_store(struct omap_overlay *ovl,
 	u8 alpha;
 	struct omap_overlay_info info;
 
+	if ((ovl->caps & OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA) == 0)
+		return -ENODEV;
+
 	r = kstrtou8(buf, 0, &alpha);
 	if (r)
 		return r;
 
 	ovl->get_overlay_info(ovl, &info);
 
-	/* only GFX and Video2 plane support pre alpha multiplied
-	 * set zero for Video1 plane
-	 */
-	if (!dss_has_feature(FEAT_GLOBAL_ALPHA_VID1) &&
-		ovl->id == OMAP_DSS_VIDEO1)
-		info.pre_mult_alpha = 0;
-	else
-		info.pre_mult_alpha = alpha;
+	info.pre_mult_alpha = alpha;
 
 	r = ovl->set_overlay_info(ovl, &info);
 	if (r)
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index cb1ff1a6b5ee..ddd5bd06b785 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -162,6 +162,8 @@ enum omap_dss_rotation_angle {
 
 enum omap_overlay_caps {
 	OMAP_DSS_OVL_CAP_SCALE = 1 << 0,
+	OMAP_DSS_OVL_CAP_GLOBAL_ALPHA = 1 << 1,
+	OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA = 1 << 2,
 };
 
 enum omap_overlay_manager_caps {
-- 
cgit 1.4.1


From 7e951ee9955f3df0c41e523a199cc3b9372cdb9f Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Fri, 22 Jul 2011 12:45:04 +0530
Subject: OMAP: DSS2: Create enum for DSI operation modes

Create an enum for DSI operation modes, use this to set the capabilities of the
device in dsi_init_display().

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 7 ++++---
 include/video/omapdss.h       | 7 +++++++
 2 files changed, 11 insertions(+), 3 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index bdc2c9d25784..d3bffe8b2a38 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -4123,9 +4123,10 @@ int dsi_init_display(struct omap_dss_device *dssdev)
 
 	DSSDBG("DSI init\n");
 
-	/* XXX these should be figured out dynamically */
-	dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE |
-		OMAP_DSS_DISPLAY_CAP_TEAR_ELIM;
+	if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_CMD_MODE) {
+		dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE |
+			OMAP_DSS_DISPLAY_CAP_TEAR_ELIM;
+	}
 
 	if (dsi->vdds_dsi_reg == NULL) {
 		struct regulator *vdds_dsi;
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index ddd5bd06b785..aeadbc880e38 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -129,6 +129,11 @@ enum omap_dss_venc_type {
 	OMAP_DSS_VENC_TYPE_SVIDEO,
 };
 
+enum omap_dss_dsi_mode {
+	OMAP_DSS_DSI_CMD_MODE = 0,
+	OMAP_DSS_DSI_VIDEO_MODE,
+};
+
 enum omap_display_caps {
 	OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE	= 1 << 0,
 	OMAP_DSS_DISPLAY_CAP_TEAR_ELIM		= 1 << 1,
@@ -480,6 +485,8 @@ struct omap_dss_device {
 		int acb;	/* ac-bias pin frequency */
 
 		enum omap_panel_config config;
+
+		enum omap_dss_dsi_mode dsi_mode;
 	} panel;
 
 	struct {
-- 
cgit 1.4.1


From 6ff8aa3182db248db4d91e574254316025c0243c Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Thu, 25 Aug 2011 18:35:58 +0530
Subject: OMAP: DSS2: DSI: Introduce generic write functions

Intoduce enum "dss_dsi_content_type" to differentiate between DCS and generic
content types.

Introduce short and long packet write functions which use generic
Processor-to-Peripheral transaction types. These are needed by some devices
which may not support corresponding DCS commands. Create common write functions
which allow code reuse between DCS and generic write functions.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 84 ++++++++++++++++++++++++++++++++++++-------
 drivers/video/omap2/dss/dss.h |  5 +++
 include/video/omapdss.h       | 12 +++++--
 3 files changed, 87 insertions(+), 14 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index d3bffe8b2a38..bb5588932b02 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -3065,38 +3065,60 @@ int dsi_vc_send_null(struct omap_dss_device *dssdev, int channel)
 }
 EXPORT_SYMBOL(dsi_vc_send_null);
 
-int dsi_vc_dcs_write_nosync(struct omap_dss_device *dssdev, int channel,
-		u8 *data, int len)
+static int dsi_vc_write_nosync_common(struct omap_dss_device *dssdev,
+		int channel, u8 *data, int len, enum dss_dsi_content_type type)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
 	int r;
 
-	BUG_ON(len == 0);
-
-	if (len == 1) {
+	if (len == 0) {
+		BUG_ON(type == DSS_DSI_CONTENT_DCS);
 		r = dsi_vc_send_short(dsidev, channel,
+				MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM, 0, 0);
+	} else if (len == 1) {
+		r = dsi_vc_send_short(dsidev, channel,
+				type == DSS_DSI_CONTENT_GENERIC ?
+				MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM :
 				MIPI_DSI_DCS_SHORT_WRITE, data[0], 0);
 	} else if (len == 2) {
 		r = dsi_vc_send_short(dsidev, channel,
+				type == DSS_DSI_CONTENT_GENERIC ?
+				MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM :
 				MIPI_DSI_DCS_SHORT_WRITE_PARAM,
 				data[0] | (data[1] << 8), 0);
 	} else {
-		/* 0x39 = DCS Long Write */
-		r = dsi_vc_send_long(dsidev, channel, MIPI_DSI_DCS_LONG_WRITE,
-				data, len, 0);
+		r = dsi_vc_send_long(dsidev, channel,
+				type == DSS_DSI_CONTENT_GENERIC ?
+				MIPI_DSI_GENERIC_LONG_WRITE :
+				MIPI_DSI_DCS_LONG_WRITE, data, len, 0);
 	}
 
 	return r;
 }
+
+int dsi_vc_dcs_write_nosync(struct omap_dss_device *dssdev, int channel,
+		u8 *data, int len)
+{
+	return dsi_vc_write_nosync_common(dssdev, channel, data, len,
+			DSS_DSI_CONTENT_DCS);
+}
 EXPORT_SYMBOL(dsi_vc_dcs_write_nosync);
 
-int dsi_vc_dcs_write(struct omap_dss_device *dssdev, int channel, u8 *data,
-		int len)
+int dsi_vc_generic_write_nosync(struct omap_dss_device *dssdev, int channel,
+		u8 *data, int len)
+{
+	return dsi_vc_write_nosync_common(dssdev, channel, data, len,
+			DSS_DSI_CONTENT_GENERIC);
+}
+EXPORT_SYMBOL(dsi_vc_generic_write_nosync);
+
+static int dsi_vc_write_common(struct omap_dss_device *dssdev, int channel,
+		u8 *data, int len, enum dss_dsi_content_type type)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
 	int r;
 
-	r = dsi_vc_dcs_write_nosync(dssdev, channel, data, len);
+	r = dsi_vc_write_nosync_common(dssdev, channel, data, len, type);
 	if (r)
 		goto err;
 
@@ -3114,18 +3136,39 @@ int dsi_vc_dcs_write(struct omap_dss_device *dssdev, int channel, u8 *data,
 
 	return 0;
 err:
-	DSSERR("dsi_vc_dcs_write(ch %d, cmd 0x%02x, len %d) failed\n",
+	DSSERR("dsi_vc_write_common(ch %d, cmd 0x%02x, len %d) failed\n",
 			channel, data[0], len);
 	return r;
 }
+
+int dsi_vc_dcs_write(struct omap_dss_device *dssdev, int channel, u8 *data,
+		int len)
+{
+	return dsi_vc_write_common(dssdev, channel, data, len,
+			DSS_DSI_CONTENT_DCS);
+}
 EXPORT_SYMBOL(dsi_vc_dcs_write);
 
+int dsi_vc_generic_write(struct omap_dss_device *dssdev, int channel, u8 *data,
+		int len)
+{
+	return dsi_vc_write_common(dssdev, channel, data, len,
+			DSS_DSI_CONTENT_GENERIC);
+}
+EXPORT_SYMBOL(dsi_vc_generic_write);
+
 int dsi_vc_dcs_write_0(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd)
 {
 	return dsi_vc_dcs_write(dssdev, channel, &dcs_cmd, 1);
 }
 EXPORT_SYMBOL(dsi_vc_dcs_write_0);
 
+int dsi_vc_generic_write_0(struct omap_dss_device *dssdev, int channel)
+{
+	return dsi_vc_generic_write(dssdev, channel, NULL, 0);
+}
+EXPORT_SYMBOL(dsi_vc_generic_write_0);
+
 int dsi_vc_dcs_write_1(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
 		u8 param)
 {
@@ -3136,6 +3179,23 @@ int dsi_vc_dcs_write_1(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
 }
 EXPORT_SYMBOL(dsi_vc_dcs_write_1);
 
+int dsi_vc_generic_write_1(struct omap_dss_device *dssdev, int channel,
+		u8 param)
+{
+	return dsi_vc_generic_write(dssdev, channel, &param, 1);
+}
+EXPORT_SYMBOL(dsi_vc_generic_write_1);
+
+int dsi_vc_generic_write_2(struct omap_dss_device *dssdev, int channel,
+		u8 param1, u8 param2)
+{
+	u8 buf[2];
+	buf[0] = param1;
+	buf[1] = param2;
+	return dsi_vc_generic_write(dssdev, channel, buf, 2);
+}
+EXPORT_SYMBOL(dsi_vc_generic_write_2);
+
 int dsi_vc_dcs_read(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
 		u8 *buf, int buflen)
 {
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index a095a62c64e8..3ec8dd7066a2 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -108,6 +108,11 @@ enum dss_hdmi_venc_clk_source_select {
 	DSS_HDMI_M_PCLK = 1,
 };
 
+enum dss_dsi_content_type {
+	DSS_DSI_CONTENT_DCS,
+	DSS_DSI_CONTENT_GENERIC,
+};
+
 struct dss_clock_info {
 	/* rates that we get with dividers below */
 	unsigned long fck;
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index aeadbc880e38..49ffdd201c2d 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -225,12 +225,20 @@ void dsi_bus_lock(struct omap_dss_device *dssdev);
 void dsi_bus_unlock(struct omap_dss_device *dssdev);
 int dsi_vc_dcs_write(struct omap_dss_device *dssdev, int channel, u8 *data,
 		int len);
-int dsi_vc_dcs_write_0(struct omap_dss_device *dssdev, int channel,
-		u8 dcs_cmd);
+int dsi_vc_generic_write(struct omap_dss_device *dssdev, int channel, u8 *data,
+		int len);
+int dsi_vc_dcs_write_0(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd);
+int dsi_vc_generic_write_0(struct omap_dss_device *dssdev, int channel);
 int dsi_vc_dcs_write_1(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
 		u8 param);
+int dsi_vc_generic_write_1(struct omap_dss_device *dssdev, int channel,
+		u8 param);
+int dsi_vc_generic_write_2(struct omap_dss_device *dssdev, int channel,
+		u8 param1, u8 param2);
 int dsi_vc_dcs_write_nosync(struct omap_dss_device *dssdev, int channel,
 		u8 *data, int len);
+int dsi_vc_generic_write_nosync(struct omap_dss_device *dssdev, int channel,
+		u8 *data, int len);
 int dsi_vc_dcs_read(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
 		u8 *buf, int buflen);
 int dsi_vc_dcs_read_1(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
-- 
cgit 1.4.1


From 5c716a04ed1f5b8a3e1a8953b71f89441a70d1d4 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Mon, 22 Aug 2011 14:44:27 +0530
Subject: OMAP: DSS2: DSI: Remove functions dsi_vc_dcs_read_1() and
 dsi_vc_dcs_read_2()

Remove functions dsi_vc_dcs_read_1() and dsi_vc_dcs_read_2(), these are used
when the panel is expected to return 1 and 2 bytes respecitvely. This was manily
used for debugging purposes. These functions should be implemented in the panel
driver if needed.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 38 --------------------------------------
 include/video/omapdss.h       |  4 ----
 2 files changed, 42 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index bb5588932b02..82516471b64f 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -3307,44 +3307,6 @@ err:
 }
 EXPORT_SYMBOL(dsi_vc_dcs_read);
 
-int dsi_vc_dcs_read_1(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
-		u8 *data)
-{
-	int r;
-
-	r = dsi_vc_dcs_read(dssdev, channel, dcs_cmd, data, 1);
-
-	if (r < 0)
-		return r;
-
-	if (r != 1)
-		return -EIO;
-
-	return 0;
-}
-EXPORT_SYMBOL(dsi_vc_dcs_read_1);
-
-int dsi_vc_dcs_read_2(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
-		u8 *data1, u8 *data2)
-{
-	u8 buf[2];
-	int r;
-
-	r = dsi_vc_dcs_read(dssdev, channel, dcs_cmd, buf, 2);
-
-	if (r < 0)
-		return r;
-
-	if (r != 2)
-		return -EIO;
-
-	*data1 = buf[0];
-	*data2 = buf[1];
-
-	return 0;
-}
-EXPORT_SYMBOL(dsi_vc_dcs_read_2);
-
 int dsi_vc_set_max_rx_packet_size(struct omap_dss_device *dssdev, int channel,
 		u16 len)
 {
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 49ffdd201c2d..a8a43de3dd81 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -241,10 +241,6 @@ int dsi_vc_generic_write_nosync(struct omap_dss_device *dssdev, int channel,
 		u8 *data, int len);
 int dsi_vc_dcs_read(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
 		u8 *buf, int buflen);
-int dsi_vc_dcs_read_1(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
-		u8 *data);
-int dsi_vc_dcs_read_2(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
-		u8 *data1, u8 *data2);
 int dsi_vc_set_max_rx_packet_size(struct omap_dss_device *dssdev, int channel,
 		u16 len);
 int dsi_vc_send_null(struct omap_dss_device *dssdev, int channel);
-- 
cgit 1.4.1


From b3b89c05cbd9869cfd6d4e352293a2e7e3bffc6e Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Tue, 30 Aug 2011 16:07:39 +0530
Subject: OMAP: DSS2: DSI: Introduce generic read functions

Introduce read functions which use generic Processor-to-Peripheral
transaction types. These are needed by some devices which may not support
corresponding DCS commands.

Add function dsi_vc_generic_send_read_request() which can send
a short packet with 0, 1 or 2 bytes of request data and the corresponding
generic data type.

Rename function dsi_vc_dcs_read_rx_fifo() to dsi_vc_read_rx_fifo() and modify
it to take the enum "dss_dsi_content_type" as an argument to use either DCS
or GENERIC Peripheral-to-Processor transaction types while parsing data read
from the device.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 146 +++++++++++++++++++++++++++++++++++++++---
 include/video/omapdss.h       |   6 ++
 2 files changed, 142 insertions(+), 10 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index c26a91435e50..20cad1b529bd 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -3217,8 +3217,44 @@ static int dsi_vc_dcs_send_read_request(struct omap_dss_device *dssdev,
 	return 0;
 }
 
-static int dsi_vc_dcs_read_rx_fifo(struct platform_device *dsidev, int channel,
-		u8 *buf, int buflen)
+static int dsi_vc_generic_send_read_request(struct omap_dss_device *dssdev,
+		int channel, u8 *reqdata, int reqlen)
+{
+	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
+	u16 data;
+	u8 data_type;
+	int r;
+
+	if (dsi->debug_read)
+		DSSDBG("dsi_vc_generic_send_read_request(ch %d, reqlen %d)\n",
+			channel, reqlen);
+
+	if (reqlen == 0) {
+		data_type = MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM;
+		data = 0;
+	} else if (reqlen == 1) {
+		data_type = MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM;
+		data = reqdata[0];
+	} else if (reqlen == 2) {
+		data_type = MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM;
+		data = reqdata[0] | (reqdata[1] << 8);
+	} else {
+		BUG();
+	}
+
+	r = dsi_vc_send_short(dsidev, channel, data_type, data, 0);
+	if (r) {
+		DSSERR("dsi_vc_generic_send_read_request(ch %d, reqlen %d)"
+			" failed\n", channel, reqlen);
+		return r;
+	}
+
+	return 0;
+}
+
+static int dsi_vc_read_rx_fifo(struct platform_device *dsidev, int channel,
+		u8 *buf, int buflen, enum dss_dsi_content_type type)
 {
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 	u32 val;
@@ -3242,10 +3278,14 @@ static int dsi_vc_dcs_read_rx_fifo(struct platform_device *dsidev, int channel,
 		r = -EIO;
 		goto err;
 
-	} else if (dt == MIPI_DSI_RX_DCS_SHORT_READ_RESPONSE_1BYTE) {
+	} else if (dt == (type == DSS_DSI_CONTENT_GENERIC ?
+			MIPI_DSI_RX_GENERIC_SHORT_READ_RESPONSE_1BYTE :
+			MIPI_DSI_RX_DCS_SHORT_READ_RESPONSE_1BYTE)) {
 		u8 data = FLD_GET(val, 15, 8);
 		if (dsi->debug_read)
-			DSSDBG("\tDCS short response, 1 byte: %02x\n", data);
+			DSSDBG("\t%s short response, 1 byte: %02x\n",
+				type == DSS_DSI_CONTENT_GENERIC ? "GENERIC" :
+				"DCS", data);
 
 		if (buflen < 1) {
 			r = -EIO;
@@ -3255,10 +3295,14 @@ static int dsi_vc_dcs_read_rx_fifo(struct platform_device *dsidev, int channel,
 		buf[0] = data;
 
 		return 1;
-	} else if (dt == MIPI_DSI_RX_DCS_SHORT_READ_RESPONSE_2BYTE) {
+	} else if (dt == (type == DSS_DSI_CONTENT_GENERIC ?
+			MIPI_DSI_RX_GENERIC_SHORT_READ_RESPONSE_2BYTE :
+			MIPI_DSI_RX_DCS_SHORT_READ_RESPONSE_2BYTE)) {
 		u16 data = FLD_GET(val, 23, 8);
 		if (dsi->debug_read)
-			DSSDBG("\tDCS short response, 2 byte: %04x\n", data);
+			DSSDBG("\t%s short response, 2 byte: %04x\n",
+				type == DSS_DSI_CONTENT_GENERIC ? "GENERIC" :
+				"DCS", data);
 
 		if (buflen < 2) {
 			r = -EIO;
@@ -3269,11 +3313,15 @@ static int dsi_vc_dcs_read_rx_fifo(struct platform_device *dsidev, int channel,
 		buf[1] = (data >> 8) & 0xff;
 
 		return 2;
-	} else if (dt == MIPI_DSI_RX_DCS_LONG_READ_RESPONSE) {
+	} else if (dt == (type == DSS_DSI_CONTENT_GENERIC ?
+			MIPI_DSI_RX_GENERIC_LONG_READ_RESPONSE :
+			MIPI_DSI_RX_DCS_LONG_READ_RESPONSE)) {
 		int w;
 		int len = FLD_GET(val, 23, 8);
 		if (dsi->debug_read)
-			DSSDBG("\tDCS long response, len %d\n", len);
+			DSSDBG("\t%s long response, len %d\n",
+				type == DSS_DSI_CONTENT_GENERIC ? "GENERIC" :
+				"DCS", len);
 
 		if (len > buflen) {
 			r = -EIO;
@@ -3309,7 +3357,8 @@ static int dsi_vc_dcs_read_rx_fifo(struct platform_device *dsidev, int channel,
 
 	BUG();
 err:
-	DSSERR("dsi_vc_dcs_read_rx_fifo(ch %d) failed\n", channel);
+	DSSERR("dsi_vc_read_rx_fifo(ch %d type %s) failed\n", channel,
+		type == DSS_DSI_CONTENT_GENERIC ? "GENERIC" : "DCS");
 
 	return r;
 }
@@ -3328,7 +3377,8 @@ int dsi_vc_dcs_read(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
 	if (r)
 		goto err;
 
-	r = dsi_vc_dcs_read_rx_fifo(dsidev, channel, buf, buflen);
+	r = dsi_vc_read_rx_fifo(dsidev, channel, buf, buflen,
+		DSS_DSI_CONTENT_DCS);
 	if (r < 0)
 		goto err;
 
@@ -3344,6 +3394,82 @@ err:
 }
 EXPORT_SYMBOL(dsi_vc_dcs_read);
 
+static int dsi_vc_generic_read(struct omap_dss_device *dssdev, int channel,
+		u8 *reqdata, int reqlen, u8 *buf, int buflen)
+{
+	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+	int r;
+
+	r = dsi_vc_generic_send_read_request(dssdev, channel, reqdata, reqlen);
+	if (r)
+		return r;
+
+	r = dsi_vc_send_bta_sync(dssdev, channel);
+	if (r)
+		return r;
+
+	r = dsi_vc_read_rx_fifo(dsidev, channel, buf, buflen,
+		DSS_DSI_CONTENT_GENERIC);
+	if (r < 0)
+		return r;
+
+	if (r != buflen) {
+		r = -EIO;
+		return r;
+	}
+
+	return 0;
+}
+
+int dsi_vc_generic_read_0(struct omap_dss_device *dssdev, int channel, u8 *buf,
+		int buflen)
+{
+	int r;
+
+	r = dsi_vc_generic_read(dssdev, channel, NULL, 0, buf, buflen);
+	if (r) {
+		DSSERR("dsi_vc_generic_read_0(ch %d) failed\n", channel);
+		return r;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(dsi_vc_generic_read_0);
+
+int dsi_vc_generic_read_1(struct omap_dss_device *dssdev, int channel, u8 param,
+		u8 *buf, int buflen)
+{
+	int r;
+
+	r = dsi_vc_generic_read(dssdev, channel, &param, 1, buf, buflen);
+	if (r) {
+		DSSERR("dsi_vc_generic_read_1(ch %d) failed\n", channel);
+		return r;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(dsi_vc_generic_read_1);
+
+int dsi_vc_generic_read_2(struct omap_dss_device *dssdev, int channel,
+		u8 param1, u8 param2, u8 *buf, int buflen)
+{
+	int r;
+	u8 reqdata[2];
+
+	reqdata[0] = param1;
+	reqdata[1] = param2;
+
+	r = dsi_vc_generic_read(dssdev, channel, reqdata, 2, buf, buflen);
+	if (r) {
+		DSSERR("dsi_vc_generic_read_2(ch %d) failed\n", channel);
+		return r;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(dsi_vc_generic_read_2);
+
 int dsi_vc_set_max_rx_packet_size(struct omap_dss_device *dssdev, int channel,
 		u16 len)
 {
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index a8a43de3dd81..abe8b1e51529 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -241,6 +241,12 @@ int dsi_vc_generic_write_nosync(struct omap_dss_device *dssdev, int channel,
 		u8 *data, int len);
 int dsi_vc_dcs_read(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
 		u8 *buf, int buflen);
+int dsi_vc_generic_read_0(struct omap_dss_device *dssdev, int channel, u8 *buf,
+		int buflen);
+int dsi_vc_generic_read_1(struct omap_dss_device *dssdev, int channel, u8 param,
+		u8 *buf, int buflen);
+int dsi_vc_generic_read_2(struct omap_dss_device *dssdev, int channel,
+		u8 param1, u8 param2, u8 *buf, int buflen);
 int dsi_vc_set_max_rx_packet_size(struct omap_dss_device *dssdev, int channel,
 		u16 len);
 int dsi_vc_send_null(struct omap_dss_device *dssdev, int channel);
-- 
cgit 1.4.1


From a3b3cc2b883aac18a3388a405db809a99d66e3cf Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Thu, 8 Sep 2011 18:42:16 +0530
Subject: OMAP: DSS2: Create an enum for DSI pixel formats

Currently, DSI pixel info is only represented by the pixel size in bits using
the pixel_size parameter in omap_dss_device struct's ctrl member.

This is not sufficient information for DSI video mode usage, as two of the
supported formats(RGB666 loosely packed, and RGB888) have the same pixel
container size, but different data_type values for the video mode packet header.

Create enum "omap_dss_dsi_pixel_format" which describes the pixel data format
the panel is configured for. Create helper function dsi_get_pixel_size() which
returns the pixel size of the given pixel format.

Modify functions omapdss_default_get_recommended_bpp() and dss_use_replication()
to use dsi_get_pixel_size().

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays/panel-taal.c |  2 +-
 drivers/video/omap2/dss/display.c         | 10 ++++++++--
 drivers/video/omap2/dss/dsi.c             | 24 ++++++++++++++++++++----
 drivers/video/omap2/dss/dss.h             |  7 +++++++
 include/video/omapdss.h                   |  8 ++++++++
 5 files changed, 44 insertions(+), 7 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index 7675687c6fe4..ddc696d52abe 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -976,7 +976,7 @@ static int taal_probe(struct omap_dss_device *dssdev)
 
 	dssdev->panel.config = OMAP_DSS_LCD_TFT;
 	dssdev->panel.timings = panel_config->timings;
-	dssdev->ctrl.pixel_size = 24;
+	dssdev->panel.dsi_pix_fmt = OMAP_DSS_DSI_FMT_RGB888;
 
 	td = kzalloc(sizeof(*td), GFP_KERNEL);
 	if (!td) {
diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
index 2c6e2bc5e207..be331dc5a61b 100644
--- a/drivers/video/omap2/dss/display.c
+++ b/drivers/video/omap2/dss/display.c
@@ -299,11 +299,15 @@ int omapdss_default_get_recommended_bpp(struct omap_dss_device *dssdev)
 			return 16;
 
 	case OMAP_DISPLAY_TYPE_DBI:
-	case OMAP_DISPLAY_TYPE_DSI:
 		if (dssdev->ctrl.pixel_size == 24)
 			return 24;
 		else
 			return 16;
+	case OMAP_DISPLAY_TYPE_DSI:
+		if (dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt) > 16)
+			return 24;
+		else
+			return 16;
 	case OMAP_DISPLAY_TYPE_VENC:
 	case OMAP_DISPLAY_TYPE_SDI:
 	case OMAP_DISPLAY_TYPE_HDMI:
@@ -339,9 +343,11 @@ bool dss_use_replication(struct omap_dss_device *dssdev,
 		bpp = 24;
 		break;
 	case OMAP_DISPLAY_TYPE_DBI:
-	case OMAP_DISPLAY_TYPE_DSI:
 		bpp = dssdev->ctrl.pixel_size;
 		break;
+	case OMAP_DISPLAY_TYPE_DSI:
+		bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt);
+		break;
 	default:
 		BUG();
 	}
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index c2c2fa778b39..2b7d17b7812c 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -422,6 +422,21 @@ static inline int wait_for_bit_change(struct platform_device *dsidev,
 	return value;
 }
 
+u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt)
+{
+	switch (fmt) {
+	case OMAP_DSS_DSI_FMT_RGB888:
+	case OMAP_DSS_DSI_FMT_RGB666:
+		return 24;
+	case OMAP_DSS_DSI_FMT_RGB666_PACKED:
+		return 18;
+	case OMAP_DSS_DSI_FMT_RGB565:
+		return 16;
+	default:
+		BUG();
+	}
+}
+
 #ifdef DEBUG
 static void dsi_perf_mark_setup(struct platform_device *dsidev)
 {
@@ -438,6 +453,7 @@ static void dsi_perf_mark_start(struct platform_device *dsidev)
 static void dsi_perf_show(struct platform_device *dsidev, const char *name)
 {
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
+	struct omap_dss_device *dssdev = dsi->update_region.device;
 	ktime_t t, setup_time, trans_time;
 	u32 total_bytes;
 	u32 setup_us, trans_us, total_us;
@@ -461,7 +477,7 @@ static void dsi_perf_show(struct platform_device *dsidev, const char *name)
 
 	total_bytes = dsi->update_region.w *
 		dsi->update_region.h *
-		dsi->update_region.device->ctrl.pixel_size / 8;
+		dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt) / 8;
 
 	printk(KERN_INFO "DSI(%s): %u us + %u us = %u us (%uHz), "
 			"%u bytes, %u kbytes/sec\n",
@@ -3689,7 +3705,7 @@ static int dsi_proto_config(struct omap_dss_device *dssdev)
 	dsi_set_lp_rx_timeout(dsidev, 0x1fff, true, true);
 	dsi_set_hs_tx_timeout(dsidev, 0x1fff, true, true);
 
-	switch (dssdev->ctrl.pixel_size) {
+	switch (dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt)) {
 	case 16:
 		buswidth = 0;
 		break;
@@ -3814,7 +3830,7 @@ static void dsi_update_screen_dispc(struct omap_dss_device *dssdev,
 
 	dsi_vc_config_source(dsidev, channel, DSI_VC_SOURCE_VP);
 
-	bytespp	= dssdev->ctrl.pixel_size / 8;
+	bytespp	= dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt) / 8;
 	bytespl = w * bytespp;
 	bytespf = bytespl * h;
 
@@ -4023,7 +4039,7 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
 	dispc_mgr_enable_fifohandcheck(dssdev->manager->id, 1);
 
 	dispc_mgr_set_tft_data_lines(dssdev->manager->id,
-			dssdev->ctrl.pixel_size);
+			dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt));
 
 	{
 		struct omap_video_timings timings = {
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index f4196f5d7001..eb716521d775 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -282,6 +282,8 @@ void dsi_create_debugfs_files_reg(struct dentry *debugfs_dir,
 
 int dsi_init_display(struct omap_dss_device *display);
 void dsi_irq_handler(void);
+u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt);
+
 unsigned long dsi_get_pll_hsdiv_dispc_rate(struct platform_device *dsidev);
 int dsi_pll_set_clock_div(struct platform_device *dsidev,
 		struct dsi_clock_info *cinfo);
@@ -312,6 +314,11 @@ static inline int dsi_runtime_get(struct platform_device *dsidev)
 static inline void dsi_runtime_put(struct platform_device *dsidev)
 {
 }
+static inline u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt)
+{
+	WARN("%s: DSI not compiled in, returning pixel_size as 0\n", __func__);
+	return 0;
+}
 static inline unsigned long dsi_get_pll_hsdiv_dispc_rate(struct platform_device *dsidev)
 {
 	WARN("%s: DSI not compiled in, returning rate as 0\n", __func__);
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index abe8b1e51529..89a9c290cf5d 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -129,6 +129,13 @@ enum omap_dss_venc_type {
 	OMAP_DSS_VENC_TYPE_SVIDEO,
 };
 
+enum omap_dss_dsi_pixel_format {
+	OMAP_DSS_DSI_FMT_RGB888,
+	OMAP_DSS_DSI_FMT_RGB666,
+	OMAP_DSS_DSI_FMT_RGB666_PACKED,
+	OMAP_DSS_DSI_FMT_RGB565,
+};
+
 enum omap_dss_dsi_mode {
 	OMAP_DSS_DSI_CMD_MODE = 0,
 	OMAP_DSS_DSI_VIDEO_MODE,
@@ -496,6 +503,7 @@ struct omap_dss_device {
 
 		enum omap_panel_config config;
 
+		enum omap_dss_dsi_pixel_format dsi_pix_fmt;
 		enum omap_dss_dsi_mode dsi_mode;
 	} panel;
 
-- 
cgit 1.4.1


From 8af6ff0107f0720b8fbf4feca7031d3e36c2fa11 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Mon, 5 Sep 2011 16:48:27 +0530
Subject: OMAP: DSS2: DSI Video mode support

Add initial support for DSI video mode panels:
- Add a new structure omap_dss_dsi_videomode_data in the member "panel" in
  omap_dss_device struct. This allows panel driver to configure dsi video_mode
  specific parameters.
- Configure basic DSI video mode timing parameters: HBP, HFP, HSA, VBP, VFP, VSA,
  TL and VACT.
- Configure DSI protocol engine registers for video_mode support.
- Introduce functions dsi_video_mode_enable() and dsi_video_mode_disable() which
  enable/disable video mode for a given virtual channel and a given pixel format
  type.

Things left for later
- Add functions to check for errors in video mode timings provided by panel.
- Configure timing registers required  for command mode interleaving.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 260 +++++++++++++++++++++++++++++++++++++-----
 include/video/omapdss.h       |  32 ++++++
 2 files changed, 263 insertions(+), 29 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 77aca3e9a058..43c04a9889c4 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -132,7 +132,7 @@ struct dsi_reg { u16 idx; };
 #define DSI_IRQ_TA_TIMEOUT	(1 << 20)
 #define DSI_IRQ_ERROR_MASK \
 	(DSI_IRQ_HS_TX_TIMEOUT | DSI_IRQ_LP_RX_TIMEOUT | DSI_IRQ_SYNC_LOST | \
-	DSI_IRQ_TA_TIMEOUT)
+	DSI_IRQ_TA_TIMEOUT | DSI_IRQ_SYNC_LOST)
 #define DSI_IRQ_CHANNEL_MASK	0xf
 
 /* Virtual channel interrupts */
@@ -2472,6 +2472,12 @@ static int dsi_cio_init(struct omap_dss_device *dssdev)
 
 	dsi_cio_timings(dsidev);
 
+	if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) {
+		/* DDR_CLK_ALWAYS_ON */
+		REG_FLD_MOD(dsidev, DSI_CLK_CTRL,
+			dssdev->panel.dsi_vm_data.ddr_clk_always_on, 13, 13);
+	}
+
 	dsi->ulps_enabled = false;
 
 	DSSDBG("CIO init done\n");
@@ -2496,6 +2502,9 @@ static void dsi_cio_uninit(struct omap_dss_device *dssdev)
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 
+	/* DDR_CLK_ALWAYS_ON */
+	REG_FLD_MOD(dsidev, DSI_CLK_CTRL, 0, 13, 13);
+
 	dsi_cio_power(dsidev, DSI_COMPLEXIO_POWER_OFF);
 	dsi_disable_scp_clk(dsidev);
 	dsi->disable_pads(dsidev->id, dsi_get_lane_mask(dssdev));
@@ -2799,6 +2808,10 @@ void omapdss_dsi_vc_enable_hs(struct omap_dss_device *dssdev, int channel,
 	dsi_if_enable(dsidev, 1);
 
 	dsi_force_tx_stop_mode_io(dsidev);
+
+	/* start the DDR clock by sending a NULL packet */
+	if (dssdev->panel.dsi_vm_data.ddr_clk_always_on && enable)
+		dsi_vc_send_null(dssdev, channel);
 }
 EXPORT_SYMBOL(omapdss_dsi_vc_enable_hs);
 
@@ -3682,6 +3695,75 @@ static void dsi_set_hs_tx_timeout(struct platform_device *dsidev,
 			ticks, x4 ? " x4" : "", x16 ? " x16" : "",
 			(total_ticks * 1000) / (fck / 1000 / 1000));
 }
+
+static void dsi_config_vp_num_line_buffers(struct omap_dss_device *dssdev)
+{
+	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+	int num_line_buffers;
+
+	if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) {
+		int bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt);
+		unsigned line_buf_size = dsi_get_line_buf_size(dsidev);
+		struct omap_video_timings *timings = &dssdev->panel.timings;
+		/*
+		 * Don't use line buffers if width is greater than the video
+		 * port's line buffer size
+		 */
+		if (line_buf_size <= timings->x_res * bpp / 8)
+			num_line_buffers = 0;
+		else
+			num_line_buffers = 2;
+	} else {
+		/* Use maximum number of line buffers in command mode */
+		num_line_buffers = 2;
+	}
+
+	/* LINE_BUFFER */
+	REG_FLD_MOD(dsidev, DSI_CTRL, num_line_buffers, 13, 12);
+}
+
+static void dsi_config_vp_sync_events(struct omap_dss_device *dssdev)
+{
+	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+	int de_pol = dssdev->panel.dsi_vm_data.vp_de_pol;
+	int hsync_pol = dssdev->panel.dsi_vm_data.vp_hsync_pol;
+	int vsync_pol = dssdev->panel.dsi_vm_data.vp_vsync_pol;
+	bool vsync_end = dssdev->panel.dsi_vm_data.vp_vsync_end;
+	bool hsync_end = dssdev->panel.dsi_vm_data.vp_hsync_end;
+	u32 r;
+
+	r = dsi_read_reg(dsidev, DSI_CTRL);
+	r = FLD_MOD(r, de_pol, 9, 9);		/* VP_DE_POL */
+	r = FLD_MOD(r, hsync_pol, 10, 10);	/* VP_HSYNC_POL */
+	r = FLD_MOD(r, vsync_pol, 11, 11);	/* VP_VSYNC_POL */
+	r = FLD_MOD(r, 1, 15, 15);		/* VP_VSYNC_START */
+	r = FLD_MOD(r, vsync_end, 16, 16);	/* VP_VSYNC_END */
+	r = FLD_MOD(r, 1, 17, 17);		/* VP_HSYNC_START */
+	r = FLD_MOD(r, hsync_end, 18, 18);	/* VP_HSYNC_END */
+	dsi_write_reg(dsidev, DSI_CTRL, r);
+}
+
+static void dsi_config_blanking_modes(struct omap_dss_device *dssdev)
+{
+	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+	int blanking_mode = dssdev->panel.dsi_vm_data.blanking_mode;
+	int hfp_blanking_mode = dssdev->panel.dsi_vm_data.hfp_blanking_mode;
+	int hbp_blanking_mode = dssdev->panel.dsi_vm_data.hbp_blanking_mode;
+	int hsa_blanking_mode = dssdev->panel.dsi_vm_data.hsa_blanking_mode;
+	u32 r;
+
+	/*
+	 * 0 = TX FIFO packets sent or LPS in corresponding blanking periods
+	 * 1 = Long blanking packets are sent in corresponding blanking periods
+	 */
+	r = dsi_read_reg(dsidev, DSI_CTRL);
+	r = FLD_MOD(r, blanking_mode, 20, 20);		/* BLANKING_MODE */
+	r = FLD_MOD(r, hfp_blanking_mode, 21, 21);	/* HFP_BLANKING */
+	r = FLD_MOD(r, hbp_blanking_mode, 22, 22);	/* HBP_BLANKING */
+	r = FLD_MOD(r, hsa_blanking_mode, 23, 23);	/* HSA_BLANKING */
+	dsi_write_reg(dsidev, DSI_CTRL, r);
+}
+
 static int dsi_proto_config(struct omap_dss_device *dssdev)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
@@ -3725,7 +3807,6 @@ static int dsi_proto_config(struct omap_dss_device *dssdev)
 	r = FLD_MOD(r, 1, 4, 4);	/* VP_CLK_RATIO, always 1, see errata*/
 	r = FLD_MOD(r, buswidth, 7, 6); /* VP_DATA_BUS_WIDTH */
 	r = FLD_MOD(r, 0, 8, 8);	/* VP_CLK_POL */
-	r = FLD_MOD(r, 2, 13, 12);	/* LINE_BUFFER, 2 lines */
 	r = FLD_MOD(r, 1, 14, 14);	/* TRIGGER_RESET_MODE */
 	r = FLD_MOD(r, 1, 19, 19);	/* EOT_ENABLE */
 	if (!dss_has_feature(FEAT_DSI_DCS_CMD_CONFIG_VC)) {
@@ -3736,6 +3817,13 @@ static int dsi_proto_config(struct omap_dss_device *dssdev)
 
 	dsi_write_reg(dsidev, DSI_CTRL, r);
 
+	dsi_config_vp_num_line_buffers(dssdev);
+
+	if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) {
+		dsi_config_vp_sync_events(dssdev);
+		dsi_config_blanking_modes(dssdev);
+	}
+
 	dsi_vc_initial_config(dsidev, 0);
 	dsi_vc_initial_config(dsidev, 1);
 	dsi_vc_initial_config(dsidev, 2);
@@ -3754,6 +3842,7 @@ static void dsi_proto_timings(struct omap_dss_device *dssdev)
 	unsigned ddr_clk_pre, ddr_clk_post;
 	unsigned enter_hs_mode_lat, exit_hs_mode_lat;
 	unsigned ths_eot;
+	int ndl = dsi_get_num_data_lanes_dssdev(dssdev);
 	u32 r;
 
 	r = dsi_read_reg(dsidev, DSI_DSIPHY_CFG0);
@@ -3776,7 +3865,7 @@ static void dsi_proto_timings(struct omap_dss_device *dssdev)
 	/* min 60ns + 52*UI */
 	tclk_post = ns2ddr(dsidev, 60) + 26;
 
-	ths_eot = DIV_ROUND_UP(4, dsi_get_num_data_lanes_dssdev(dssdev));
+	ths_eot = DIV_ROUND_UP(4, ndl);
 
 	ddr_clk_pre = DIV_ROUND_UP(tclk_pre + tlpx + tclk_zero + tclk_prepare,
 			4);
@@ -3806,7 +3895,114 @@ static void dsi_proto_timings(struct omap_dss_device *dssdev)
 
 	DSSDBG("enter_hs_mode_lat %u, exit_hs_mode_lat %u\n",
 			enter_hs_mode_lat, exit_hs_mode_lat);
+
+	 if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) {
+		/* TODO: Implement a video mode check_timings function */
+		int hsa = dssdev->panel.dsi_vm_data.hsa;
+		int hfp = dssdev->panel.dsi_vm_data.hfp;
+		int hbp = dssdev->panel.dsi_vm_data.hbp;
+		int vsa = dssdev->panel.dsi_vm_data.vsa;
+		int vfp = dssdev->panel.dsi_vm_data.vfp;
+		int vbp = dssdev->panel.dsi_vm_data.vbp;
+		int window_sync = dssdev->panel.dsi_vm_data.window_sync;
+		bool hsync_end = dssdev->panel.dsi_vm_data.vp_hsync_end;
+		struct omap_video_timings *timings = &dssdev->panel.timings;
+		int bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt);
+		int tl, t_he, width_bytes;
+
+		t_he = hsync_end ?
+			((hsa == 0 && ndl == 3) ? 1 : DIV_ROUND_UP(4, ndl)) : 0;
+
+		width_bytes = DIV_ROUND_UP(timings->x_res * bpp, 8);
+
+		/* TL = t_HS + HSA + t_HE + HFP + ceil((WC + 6) / NDL) + HBP */
+		tl = DIV_ROUND_UP(4, ndl) + (hsync_end ? hsa : 0) + t_he + hfp +
+			DIV_ROUND_UP(width_bytes + 6, ndl) + hbp;
+
+		DSSDBG("HBP: %d, HFP: %d, HSA: %d, TL: %d TXBYTECLKHS\n", hbp,
+			hfp, hsync_end ? hsa : 0, tl);
+		DSSDBG("VBP: %d, VFP: %d, VSA: %d, VACT: %d lines\n", vbp, vfp,
+			vsa, timings->y_res);
+
+		r = dsi_read_reg(dsidev, DSI_VM_TIMING1);
+		r = FLD_MOD(r, hbp, 11, 0);	/* HBP */
+		r = FLD_MOD(r, hfp, 23, 12);	/* HFP */
+		r = FLD_MOD(r, hsync_end ? hsa : 0, 31, 24);	/* HSA */
+		dsi_write_reg(dsidev, DSI_VM_TIMING1, r);
+
+		r = dsi_read_reg(dsidev, DSI_VM_TIMING2);
+		r = FLD_MOD(r, vbp, 7, 0);	/* VBP */
+		r = FLD_MOD(r, vfp, 15, 8);	/* VFP */
+		r = FLD_MOD(r, vsa, 23, 16);	/* VSA */
+		r = FLD_MOD(r, window_sync, 27, 24);	/* WINDOW_SYNC */
+		dsi_write_reg(dsidev, DSI_VM_TIMING2, r);
+
+		r = dsi_read_reg(dsidev, DSI_VM_TIMING3);
+		r = FLD_MOD(r, timings->y_res, 14, 0);	/* VACT */
+		r = FLD_MOD(r, tl, 31, 16);		/* TL */
+		dsi_write_reg(dsidev, DSI_VM_TIMING3, r);
+	}
+}
+
+int dsi_video_mode_enable(struct omap_dss_device *dssdev, int channel)
+{
+	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+	int bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt);
+	u8 data_type;
+	u16 word_count;
+
+	switch (dssdev->panel.dsi_pix_fmt) {
+	case OMAP_DSS_DSI_FMT_RGB888:
+		data_type = MIPI_DSI_PACKED_PIXEL_STREAM_24;
+		break;
+	case OMAP_DSS_DSI_FMT_RGB666:
+		data_type = MIPI_DSI_PIXEL_STREAM_3BYTE_18;
+		break;
+	case OMAP_DSS_DSI_FMT_RGB666_PACKED:
+		data_type = MIPI_DSI_PACKED_PIXEL_STREAM_18;
+		break;
+	case OMAP_DSS_DSI_FMT_RGB565:
+		data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16;
+		break;
+	default:
+		BUG();
+	};
+
+	dsi_if_enable(dsidev, false);
+	dsi_vc_enable(dsidev, channel, false);
+
+	/* MODE, 1 = video mode */
+	REG_FLD_MOD(dsidev, DSI_VC_CTRL(channel), 1, 4, 4);
+
+	word_count = DIV_ROUND_UP(dssdev->panel.timings.x_res * bpp, 8);
+
+	dsi_vc_write_long_header(dsidev, channel, data_type, word_count, 0);
+
+	dsi_vc_enable(dsidev, channel, true);
+	dsi_if_enable(dsidev, true);
+
+	dssdev->manager->enable(dssdev->manager);
+
+	return 0;
 }
+EXPORT_SYMBOL(dsi_video_mode_enable);
+
+void dsi_video_mode_disable(struct omap_dss_device *dssdev, int channel)
+{
+	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+
+	dsi_if_enable(dsidev, false);
+	dsi_vc_enable(dsidev, channel, false);
+
+	/* MODE, 0 = command mode */
+	REG_FLD_MOD(dsidev, DSI_VC_CTRL(channel), 0, 4, 4);
+
+	dsi_vc_enable(dsidev, channel, true);
+	dsi_if_enable(dsidev, true);
+
+	dssdev->manager->disable(dssdev->manager);
+}
+EXPORT_SYMBOL(dsi_video_mode_disable);
 
 static void dsi_update_screen_dispc(struct omap_dss_device *dssdev,
 		u16 x, u16 y, u16 w, u16 h)
@@ -4019,28 +4215,9 @@ EXPORT_SYMBOL(omap_dsi_update);
 static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
 {
 	int r;
-	u32 irq;
-
-	irq = dssdev->manager->id == OMAP_DSS_CHANNEL_LCD ?
-		DISPC_IRQ_FRAMEDONE : DISPC_IRQ_FRAMEDONE2;
-
-	r = omap_dispc_register_isr(dsi_framedone_irq_callback, (void *) dssdev,
-			irq);
-	if (r) {
-		DSSERR("can't get FRAMEDONE irq\n");
-		return r;
-	}
-
-	dispc_mgr_set_lcd_display_type(dssdev->manager->id,
-			OMAP_DSS_LCD_DISPLAY_TFT);
-
-	dispc_mgr_enable_stallmode(dssdev->manager->id, true);
-	dispc_mgr_enable_fifohandcheck(dssdev->manager->id, 1);
-
-	dispc_mgr_set_tft_data_lines(dssdev->manager->id,
-			dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt));
 
-	{
+	if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_CMD_MODE) {
+		u32 irq;
 		struct omap_video_timings timings = {
 			.hsw		= 1,
 			.hfp		= 1,
@@ -4050,21 +4227,46 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
 			.vbp		= 0,
 		};
 
+		irq = dssdev->manager->id == OMAP_DSS_CHANNEL_LCD ?
+			DISPC_IRQ_FRAMEDONE : DISPC_IRQ_FRAMEDONE2;
+
+		r = omap_dispc_register_isr(dsi_framedone_irq_callback,
+			(void *) dssdev, irq);
+		if (r) {
+			DSSERR("can't get FRAMEDONE irq\n");
+			return r;
+		}
+
+		dispc_mgr_enable_stallmode(dssdev->manager->id, true);
+		dispc_mgr_enable_fifohandcheck(dssdev->manager->id, 1);
+
 		dispc_mgr_set_lcd_timings(dssdev->manager->id, &timings);
+	} else {
+		dispc_mgr_enable_stallmode(dssdev->manager->id, false);
+		dispc_mgr_enable_fifohandcheck(dssdev->manager->id, 0);
+
+		dispc_mgr_set_lcd_timings(dssdev->manager->id,
+			&dssdev->panel.timings);
 	}
 
+		dispc_mgr_set_lcd_display_type(dssdev->manager->id,
+			OMAP_DSS_LCD_DISPLAY_TFT);
+		dispc_mgr_set_tft_data_lines(dssdev->manager->id,
+			dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt));
 	return 0;
 }
 
 static void dsi_display_uninit_dispc(struct omap_dss_device *dssdev)
 {
-	u32 irq;
+	if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_CMD_MODE) {
+		u32 irq;
 
-	irq = dssdev->manager->id == OMAP_DSS_CHANNEL_LCD ?
-		DISPC_IRQ_FRAMEDONE : DISPC_IRQ_FRAMEDONE2;
+		irq = dssdev->manager->id == OMAP_DSS_CHANNEL_LCD ?
+			DISPC_IRQ_FRAMEDONE : DISPC_IRQ_FRAMEDONE2;
 
-	omap_dispc_unregister_isr(dsi_framedone_irq_callback, (void *) dssdev,
-			irq);
+		omap_dispc_unregister_isr(dsi_framedone_irq_callback,
+			(void *) dssdev, irq);
+	}
 }
 
 static int dsi_configure_dsi_clocks(struct omap_dss_device *dssdev)
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 89a9c290cf5d..44f423ff64bd 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -228,6 +228,35 @@ void rfbi_bus_lock(void);
 void rfbi_bus_unlock(void);
 
 /* DSI */
+
+struct omap_dss_dsi_videomode_data {
+	/* DSI video mode blanking data */
+	/* Unit: byte clock cycles */
+	u16 hsa;
+	u16 hfp;
+	u16 hbp;
+	/* Unit: line clocks */
+	u16 vsa;
+	u16 vfp;
+	u16 vbp;
+
+	/* DSI blanking modes */
+	int blanking_mode;
+	int hsa_blanking_mode;
+	int hbp_blanking_mode;
+	int hfp_blanking_mode;
+
+	/* Video port sync events */
+	int vp_de_pol;
+	int vp_hsync_pol;
+	int vp_vsync_pol;
+	bool vp_vsync_end;
+	bool vp_hsync_end;
+
+	bool ddr_clk_always_on;
+	int window_sync;
+};
+
 void dsi_bus_lock(struct omap_dss_device *dssdev);
 void dsi_bus_unlock(struct omap_dss_device *dssdev);
 int dsi_vc_dcs_write(struct omap_dss_device *dssdev, int channel, u8 *data,
@@ -258,6 +287,8 @@ int dsi_vc_set_max_rx_packet_size(struct omap_dss_device *dssdev, int channel,
 		u16 len);
 int dsi_vc_send_null(struct omap_dss_device *dssdev, int channel);
 int dsi_vc_send_bta_sync(struct omap_dss_device *dssdev, int channel);
+int dsi_video_mode_enable(struct omap_dss_device *dssdev, int channel);
+void dsi_video_mode_disable(struct omap_dss_device *dssdev, int channel);
 
 /* Board specific data */
 struct omap_dss_board_info {
@@ -505,6 +536,7 @@ struct omap_dss_device {
 
 		enum omap_dss_dsi_pixel_format dsi_pix_fmt;
 		enum omap_dss_dsi_mode dsi_mode;
+		struct omap_dss_dsi_videomode_data dsi_vm_data;
 	} panel;
 
 	struct {
-- 
cgit 1.4.1


From b44e45825dbe30f32c770b98c38555b6bd331760 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 22 Aug 2011 13:16:24 +0300
Subject: OMAP: DSS2: HDMI: change regn definition

regn divider is currently programmed to the registers without change,
but when calculating clock frequencies it is used as regn+1.

To make this similar to how DSI handles the dividers this patch changes
the regn value to be used as such for calculations, but the value
programmed to registers is regn-1.

This simplifies the clock frequency calculations, makes it similar to
DSI, and also allows us to use regn value 0 as undefined.

Cc: Mythri P K <mythripk@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi.c            | 6 +++---
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 2 +-
 include/video/omapdss.h                   | 1 +
 3 files changed, 5 insertions(+), 4 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 52731b5e10f0..4752137b226a 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -60,7 +60,7 @@
 
 #define OMAP_HDMI_TIMINGS_NB			34
 
-#define HDMI_DEFAULT_REGN 15
+#define HDMI_DEFAULT_REGN 16
 #define HDMI_DEFAULT_REGM2 1
 
 static struct {
@@ -426,7 +426,7 @@ static void hdmi_compute_pll(struct omap_dss_device *dssdev, int phy,
 	else
 		pi->regn = dssdev->clocks.hdmi.regn;
 
-	refclk = clkin / (pi->regn + 1);
+	refclk = clkin / pi->regn;
 
 	/*
 	 * multiplier is pixel_clk/ref_clk
@@ -452,7 +452,7 @@ static void hdmi_compute_pll(struct omap_dss_device *dssdev, int phy,
 	 * is greater than 1000MHz
 	 */
 	pi->dcofreq = phy > 1000 * 100;
-	pi->regsd = ((pi->regm * clkin / 10) / ((pi->regn + 1) * 250) + 5) / 10;
+	pi->regsd = ((pi->regm * clkin / 10) / (pi->regn * 250) + 5) / 10;
 
 	/* Set the reference clock to sysclk reference */
 	pi->refsel = HDMI_REFSEL_SYSCLK;
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index cb3a2d6753de..403c66241477 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -92,7 +92,7 @@ static int hdmi_pll_init(struct hdmi_ip_data *ip_data)
 
 	r = hdmi_read_reg(pll_base, PLLCTRL_CFG1);
 	r = FLD_MOD(r, fmt->regm, 20, 9); /* CFG1_PLL_REGM */
-	r = FLD_MOD(r, fmt->regn, 8, 1);  /* CFG1_PLL_REGN */
+	r = FLD_MOD(r, fmt->regn - 1, 8, 1);  /* CFG1_PLL_REGN */
 
 	hdmi_write_reg(pll_base, PLLCTRL_CFG1, r);
 
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 44f423ff64bd..c7cfdad81242 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -520,6 +520,7 @@ struct omap_dss_device {
 		} dsi;
 
 		struct {
+			/* regn is one greater than TRM's REGN value */
 			u16 regn;
 			u16 regm2;
 		} hdmi;
-- 
cgit 1.4.1


From c90a78ecc2ae3c8341ed6efbfbb7e3e655ee00fe Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 31 Aug 2011 15:32:23 +0300
Subject: OMAP: DSS2: DSI: Add comment about regn

regn divider is one greater than the REGN divider in TRM. Add a comment
to point this out.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 include/video/omapdss.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include/video')

diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index c7cfdad81242..31b77469c151 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -510,6 +510,7 @@ struct omap_dss_device {
 		} dispc;
 
 		struct {
+			/* regn is one greater than TRM's REGN value */
 			u16 regn;
 			u16 regm;
 			u16 regm_dispc;
-- 
cgit 1.4.1


From 7f6f3c4bf3f0fd4ea82682b5f1a417cbdbf4a27f Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 31 Aug 2011 13:39:03 +0300
Subject: OMAP: DSS2: DISPC: Add missing IRQ  definitions

Add IRQ definitions for missing OMAP4 IRQs: FRAMEDONEWB, FRAMEDONETV,
WBBUFFEROVERFLOW.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 include/video/omapdss.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'include/video')

diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 31b77469c151..583c6245194f 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -43,6 +43,9 @@
 #define DISPC_IRQ_VSYNC2		(1 << 18)
 #define DISPC_IRQ_ACBIAS_COUNT_STAT2	(1 << 21)
 #define DISPC_IRQ_FRAMEDONE2		(1 << 22)
+#define DISPC_IRQ_FRAMEDONEWB		(1 << 23)
+#define DISPC_IRQ_FRAMEDONETV		(1 << 24)
+#define DISPC_IRQ_WBBUFFEROVERFLOW	(1 << 25)
 
 struct omap_dss_device;
 struct omap_overlay_manager;
-- 
cgit 1.4.1


From 3d5e0ef746c13f8a26d0150f5dfd4f9b738a5130 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 25 Aug 2011 17:10:41 +0300
Subject: OMAP: DSS2: add read_edid() to omap_dss_driver struct

read_edid() can be used to get the EDID information from the display.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 include/video/omapdss.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'include/video')

diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 583c6245194f..33410b499f3a 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -622,6 +622,8 @@ struct omap_dss_driver {
 
 	int (*set_wss)(struct omap_dss_device *dssdev, u32 wss);
 	u32 (*get_wss)(struct omap_dss_device *dssdev);
+
+	int (*read_edid)(struct omap_dss_device *dssdev, u8 *buf, int len);
 };
 
 int omap_dss_register_driver(struct omap_dss_driver *);
-- 
cgit 1.4.1


From df4769c9c4effa0960ead8d83522407f66e4a82a Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 29 Aug 2011 17:26:01 +0300
Subject: OMAP: DSS2: add detect() to omap_dss_driver struct

detect() can be used to probe if the display is connected.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 include/video/omapdss.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include/video')

diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 33410b499f3a..a927eea8e9b9 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -624,6 +624,7 @@ struct omap_dss_driver {
 	u32 (*get_wss)(struct omap_dss_device *dssdev);
 
 	int (*read_edid)(struct omap_dss_device *dssdev, u8 *buf, int len);
+	bool (*detect)(struct omap_dss_device *dssdev);
 };
 
 int omap_dss_register_driver(struct omap_dss_driver *);
-- 
cgit 1.4.1


From ba2eac9ed32e4485b2a76e1a0922837d3ffd6149 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 1 Sep 2011 09:17:41 +0300
Subject: OMAP: DSS2: add panel-dvi driver

We have currently panel-generic-dpi driver, which is a combined driver
for dummy panels and also for DVI output.

The aim is to split the panel-generic-dpi into two, one for fixed size
dummy panels connected via DPI, and the other (this) for variable
resolution output which supports DDC channel (in practice a DVI framer
chip connected to DPI output).

Original i2c code by: Ricardo Salveti de Araujo
<ricardo.salveti@canonical.com>

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays/Kconfig     |   7 +
 drivers/video/omap2/displays/Makefile    |   1 +
 drivers/video/omap2/displays/panel-dvi.c | 363 +++++++++++++++++++++++++++++++
 include/video/omap-panel-dvi.h           |  37 ++++
 4 files changed, 408 insertions(+)
 create mode 100644 drivers/video/omap2/displays/panel-dvi.c
 create mode 100644 include/video/omap-panel-dvi.h

(limited to 'include/video')

diff --git a/drivers/video/omap2/displays/Kconfig b/drivers/video/omap2/displays/Kconfig
index 6ddb401552cd..16e3eab444c4 100644
--- a/drivers/video/omap2/displays/Kconfig
+++ b/drivers/video/omap2/displays/Kconfig
@@ -10,6 +10,13 @@ config PANEL_GENERIC_DPI
 	  Supports LCD Panel used in TI SDP3430 and EVM boards,
 	  OMAP3517 EVM boards and CM-T35.
 
+config PANEL_DVI
+	tristate "DVI output"
+	depends on OMAP2_DSS_DPI
+	help
+	  Driver for external monitors, connected via DVI. The driver uses i2c
+	  to read EDID information from the monitor.
+
 config PANEL_LGPHILIPS_LB035Q02
 	tristate "LG.Philips LB035Q02 LCD Panel"
 	depends on OMAP2_DSS_DPI && SPI
diff --git a/drivers/video/omap2/displays/Makefile b/drivers/video/omap2/displays/Makefile
index d90f73c8716a..abfda35d82d4 100644
--- a/drivers/video/omap2/displays/Makefile
+++ b/drivers/video/omap2/displays/Makefile
@@ -1,4 +1,5 @@
 obj-$(CONFIG_PANEL_GENERIC_DPI) += panel-generic-dpi.o
+obj-$(CONFIG_PANEL_DVI) += panel-dvi.o
 obj-$(CONFIG_PANEL_LGPHILIPS_LB035Q02) += panel-lgphilips-lb035q02.o
 obj-$(CONFIG_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o
 obj-$(CONFIG_PANEL_NEC_NL8048HL11_01B) += panel-nec-nl8048hl11-01b.o
diff --git a/drivers/video/omap2/displays/panel-dvi.c b/drivers/video/omap2/displays/panel-dvi.c
new file mode 100644
index 000000000000..03eb14af33e0
--- /dev/null
+++ b/drivers/video/omap2/displays/panel-dvi.c
@@ -0,0 +1,363 @@
+/*
+ * DVI output support
+ *
+ * Copyright (C) 2011 Texas Instruments Inc
+ * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <video/omapdss.h>
+#include <linux/i2c.h>
+#include <drm/drm_edid.h>
+
+#include <video/omap-panel-dvi.h>
+
+static const struct omap_video_timings panel_dvi_default_timings = {
+	.x_res		= 640,
+	.y_res		= 480,
+
+	.pixel_clock	= 23500,
+
+	.hfp		= 48,
+	.hsw		= 32,
+	.hbp		= 80,
+
+	.vfp		= 3,
+	.vsw		= 4,
+	.vbp		= 7,
+};
+
+struct panel_drv_data {
+	struct omap_dss_device *dssdev;
+
+	struct mutex lock;
+};
+
+static inline struct panel_dvi_platform_data
+*get_pdata(const struct omap_dss_device *dssdev)
+{
+	return dssdev->data;
+}
+
+static int panel_dvi_power_on(struct omap_dss_device *dssdev)
+{
+	struct panel_dvi_platform_data *pdata = get_pdata(dssdev);
+	int r;
+
+	if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
+		return 0;
+
+	r = omapdss_dpi_display_enable(dssdev);
+	if (r)
+		goto err0;
+
+	if (pdata->platform_enable) {
+		r = pdata->platform_enable(dssdev);
+		if (r)
+			goto err1;
+	}
+
+	return 0;
+err1:
+	omapdss_dpi_display_disable(dssdev);
+err0:
+	return r;
+}
+
+static void panel_dvi_power_off(struct omap_dss_device *dssdev)
+{
+	struct panel_dvi_platform_data *pdata = get_pdata(dssdev);
+
+	if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+		return;
+
+	if (pdata->platform_disable)
+		pdata->platform_disable(dssdev);
+
+	omapdss_dpi_display_disable(dssdev);
+}
+
+static int panel_dvi_probe(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata;
+
+	ddata = kzalloc(sizeof(*ddata), GFP_KERNEL);
+	if (!ddata)
+		return -ENOMEM;
+
+	dssdev->panel.timings = panel_dvi_default_timings;
+	dssdev->panel.config = OMAP_DSS_LCD_TFT;
+
+	ddata->dssdev = dssdev;
+	mutex_init(&ddata->lock);
+
+	dev_set_drvdata(&dssdev->dev, ddata);
+
+	return 0;
+}
+
+static void __exit panel_dvi_remove(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+
+	mutex_lock(&ddata->lock);
+
+	dev_set_drvdata(&dssdev->dev, NULL);
+
+	mutex_unlock(&ddata->lock);
+
+	kfree(ddata);
+}
+
+static int panel_dvi_enable(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+	int r;
+
+	mutex_lock(&ddata->lock);
+
+	r = panel_dvi_power_on(dssdev);
+	if (r == 0)
+		dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+	mutex_unlock(&ddata->lock);
+
+	return r;
+}
+
+static void panel_dvi_disable(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+
+	mutex_lock(&ddata->lock);
+
+	panel_dvi_power_off(dssdev);
+
+	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+
+	mutex_unlock(&ddata->lock);
+}
+
+static int panel_dvi_suspend(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+
+	mutex_lock(&ddata->lock);
+
+	panel_dvi_power_off(dssdev);
+
+	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
+
+	mutex_unlock(&ddata->lock);
+
+	return 0;
+}
+
+static int panel_dvi_resume(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+	int r;
+
+	mutex_lock(&ddata->lock);
+
+	r = panel_dvi_power_on(dssdev);
+	if (r == 0)
+		dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+	mutex_unlock(&ddata->lock);
+
+	return r;
+}
+
+static void panel_dvi_set_timings(struct omap_dss_device *dssdev,
+		struct omap_video_timings *timings)
+{
+	struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+
+	mutex_lock(&ddata->lock);
+	dpi_set_timings(dssdev, timings);
+	mutex_unlock(&ddata->lock);
+}
+
+static void panel_dvi_get_timings(struct omap_dss_device *dssdev,
+		struct omap_video_timings *timings)
+{
+	struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+
+	mutex_lock(&ddata->lock);
+	*timings = dssdev->panel.timings;
+	mutex_unlock(&ddata->lock);
+}
+
+static int panel_dvi_check_timings(struct omap_dss_device *dssdev,
+		struct omap_video_timings *timings)
+{
+	struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+	int r;
+
+	mutex_lock(&ddata->lock);
+	r = dpi_check_timings(dssdev, timings);
+	mutex_unlock(&ddata->lock);
+
+	return r;
+}
+
+
+static int panel_dvi_ddc_read(struct i2c_adapter *adapter,
+		unsigned char *buf, u16 count, u8 offset)
+{
+	int r, retries;
+
+	for (retries = 3; retries > 0; retries--) {
+		struct i2c_msg msgs[] = {
+			{
+				.addr   = DDC_ADDR,
+				.flags  = 0,
+				.len    = 1,
+				.buf    = &offset,
+			}, {
+				.addr   = DDC_ADDR,
+				.flags  = I2C_M_RD,
+				.len    = count,
+				.buf    = buf,
+			}
+		};
+
+		r = i2c_transfer(adapter, msgs, 2);
+		if (r == 2)
+			return 0;
+
+		if (r != -EAGAIN)
+			break;
+	}
+
+	return r < 0 ? r : -EIO;
+}
+
+static int panel_dvi_read_edid(struct omap_dss_device *dssdev,
+		u8 *edid, int len)
+{
+	struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+	struct panel_dvi_platform_data *pdata = get_pdata(dssdev);
+	struct i2c_adapter *adapter;
+	int r, l, bytes_read;
+
+	mutex_lock(&ddata->lock);
+
+	if (pdata->i2c_bus_num == 0) {
+		r = -ENODEV;
+		goto err;
+	}
+
+	adapter = i2c_get_adapter(pdata->i2c_bus_num);
+	if (!adapter) {
+		dev_err(&dssdev->dev, "Failed to get I2C adapter, bus %d\n",
+				pdata->i2c_bus_num);
+		r = -EINVAL;
+		goto err;
+	}
+
+	l = min(EDID_LENGTH, len);
+	r = panel_dvi_ddc_read(adapter, edid, l, 0);
+	if (r)
+		goto err;
+
+	bytes_read = l;
+
+	/* if there are extensions, read second block */
+	if (len > EDID_LENGTH && edid[0x7e] > 0) {
+		l = min(EDID_LENGTH, len - EDID_LENGTH);
+
+		r = panel_dvi_ddc_read(adapter, edid + EDID_LENGTH,
+				l, EDID_LENGTH);
+		if (r)
+			goto err;
+
+		bytes_read += l;
+	}
+
+	mutex_unlock(&ddata->lock);
+
+	return bytes_read;
+
+err:
+	mutex_unlock(&ddata->lock);
+	return r;
+}
+
+static bool panel_dvi_detect(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+	struct panel_dvi_platform_data *pdata = get_pdata(dssdev);
+	struct i2c_adapter *adapter;
+	unsigned char out;
+	int r;
+
+	mutex_lock(&ddata->lock);
+
+	if (pdata->i2c_bus_num == 0)
+		goto out;
+
+	adapter = i2c_get_adapter(pdata->i2c_bus_num);
+	if (!adapter)
+		goto out;
+
+	r = panel_dvi_ddc_read(adapter, &out, 1, 0);
+
+	mutex_unlock(&ddata->lock);
+
+	return r == 0;
+
+out:
+	mutex_unlock(&ddata->lock);
+	return true;
+}
+
+static struct omap_dss_driver panel_dvi_driver = {
+	.probe		= panel_dvi_probe,
+	.remove		= __exit_p(panel_dvi_remove),
+
+	.enable		= panel_dvi_enable,
+	.disable	= panel_dvi_disable,
+	.suspend	= panel_dvi_suspend,
+	.resume		= panel_dvi_resume,
+
+	.set_timings	= panel_dvi_set_timings,
+	.get_timings	= panel_dvi_get_timings,
+	.check_timings	= panel_dvi_check_timings,
+
+	.read_edid	= panel_dvi_read_edid,
+	.detect		= panel_dvi_detect,
+
+	.driver         = {
+		.name   = "dvi",
+		.owner  = THIS_MODULE,
+	},
+};
+
+static int __init panel_dvi_init(void)
+{
+	return omap_dss_register_driver(&panel_dvi_driver);
+}
+
+static void __exit panel_dvi_exit(void)
+{
+	omap_dss_unregister_driver(&panel_dvi_driver);
+}
+
+module_init(panel_dvi_init);
+module_exit(panel_dvi_exit);
+MODULE_LICENSE("GPL");
diff --git a/include/video/omap-panel-dvi.h b/include/video/omap-panel-dvi.h
new file mode 100644
index 000000000000..87ad567b4229
--- /dev/null
+++ b/include/video/omap-panel-dvi.h
@@ -0,0 +1,37 @@
+/*
+ * Header for DVI output driver
+ *
+ * Copyright (C) 2011 Texas Instruments Inc
+ * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __OMAP_PANEL_DVI_H
+#define __OMAP_PANEL_DVI_H
+
+struct omap_dss_device;
+
+/**
+ * struct panel_dvi_platform_data - panel driver configuration data
+ * @platform_enable: platform specific panel enable function
+ * @platform_disable: platform specific panel disable function
+ * @i2c_bus_num: i2c bus id for the panel
+ */
+struct panel_dvi_platform_data {
+	int (*platform_enable)(struct omap_dss_device *dssdev);
+	void (*platform_disable)(struct omap_dss_device *dssdev);
+	u16 i2c_bus_num;
+};
+
+#endif /* __OMAP_PANEL_DVI_H */
-- 
cgit 1.4.1


From bb36dbfd23033282991ac47d9eac8ad26514a0d1 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 9 Aug 2011 11:39:27 +0300
Subject: OMAPDSS: Taal: remove external backlight support

Taal panel driver supports two kinds of backlight control: 1) using DSI
commands sent to the panel to control the backlight, 2) calling function
pointers going to the board file to control the backlight.

The second option is a bit hacky, and will no longer be needed when the
PWM driver supports the backlight features. After that we can use the
standard PWM backlight driver.

This patch removes the second backlight control mechanism, and adds a
boolean field, use_dsi_backlight, to nokia_dsi_panel_data which the
board file can use to inform whether the panel driver should use DSI
commands to control the backlight.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays/panel-taal.c | 76 ++++++++++++-------------------
 include/video/omap-panel-nokia-dsi.h      |  8 +---
 2 files changed, 32 insertions(+), 52 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index ddc696d52abe..7f91002cc3ba 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -208,8 +208,6 @@ struct taal_data {
 
 	struct delayed_work te_timeout_work;
 
-	bool use_dsi_bl;
-
 	bool cabc_broken;
 	unsigned cabc_mode;
 
@@ -541,7 +539,6 @@ static int taal_bl_update_status(struct backlight_device *dev)
 {
 	struct omap_dss_device *dssdev = dev_get_drvdata(&dev->dev);
 	struct taal_data *td = dev_get_drvdata(&dssdev->dev);
-	struct nokia_dsi_panel_data *panel_data = get_panel_data(dssdev);
 	int r;
 	int level;
 
@@ -555,23 +552,16 @@ static int taal_bl_update_status(struct backlight_device *dev)
 
 	mutex_lock(&td->lock);
 
-	if (td->use_dsi_bl) {
-		if (td->enabled) {
-			dsi_bus_lock(dssdev);
+	if (td->enabled) {
+		dsi_bus_lock(dssdev);
 
-			r = taal_wake_up(dssdev);
-			if (!r)
-				r = taal_dcs_write_1(td, DCS_BRIGHTNESS, level);
+		r = taal_wake_up(dssdev);
+		if (!r)
+			r = taal_dcs_write_1(td, DCS_BRIGHTNESS, level);
 
-			dsi_bus_unlock(dssdev);
-		} else {
-			r = 0;
-		}
+		dsi_bus_unlock(dssdev);
 	} else {
-		if (!panel_data->set_backlight)
-			r = -EINVAL;
-		else
-			r = panel_data->set_backlight(dssdev, level);
+		r = 0;
 	}
 
 	mutex_unlock(&td->lock);
@@ -950,7 +940,7 @@ static int taal_probe(struct omap_dss_device *dssdev)
 {
 	struct backlight_properties props;
 	struct taal_data *td;
-	struct backlight_device *bldev;
+	struct backlight_device *bldev = NULL;
 	struct nokia_dsi_panel_data *panel_data = get_panel_data(dssdev);
 	struct panel_config *panel_config = NULL;
 	int r, i;
@@ -1011,35 +1001,26 @@ static int taal_probe(struct omap_dss_device *dssdev)
 
 	taal_hw_reset(dssdev);
 
-	/* if no platform set_backlight() defined, presume DSI backlight
-	 * control */
-	memset(&props, 0, sizeof(struct backlight_properties));
-	if (!panel_data->set_backlight)
-		td->use_dsi_bl = true;
-
-	if (td->use_dsi_bl)
+	if (panel_data->use_dsi_backlight) {
+		memset(&props, 0, sizeof(struct backlight_properties));
 		props.max_brightness = 255;
-	else
-		props.max_brightness = 127;
-
-	props.type = BACKLIGHT_RAW;
-	bldev = backlight_device_register(dev_name(&dssdev->dev), &dssdev->dev,
-					dssdev, &taal_bl_ops, &props);
-	if (IS_ERR(bldev)) {
-		r = PTR_ERR(bldev);
-		goto err_bl;
-	}
 
-	td->bldev = bldev;
+		props.type = BACKLIGHT_RAW;
+		bldev = backlight_device_register(dev_name(&dssdev->dev),
+				&dssdev->dev, dssdev, &taal_bl_ops, &props);
+		if (IS_ERR(bldev)) {
+			r = PTR_ERR(bldev);
+			goto err_bl;
+		}
+
+		td->bldev = bldev;
 
-	bldev->props.fb_blank = FB_BLANK_UNBLANK;
-	bldev->props.power = FB_BLANK_UNBLANK;
-	if (td->use_dsi_bl)
+		bldev->props.fb_blank = FB_BLANK_UNBLANK;
+		bldev->props.power = FB_BLANK_UNBLANK;
 		bldev->props.brightness = 255;
-	else
-		bldev->props.brightness = 127;
 
-	taal_bl_update_status(bldev);
+		taal_bl_update_status(bldev);
+	}
 
 	if (panel_data->use_ext_te) {
 		int gpio = panel_data->ext_te_gpio;
@@ -1097,7 +1078,8 @@ err_irq:
 	if (panel_data->use_ext_te)
 		gpio_free(panel_data->ext_te_gpio);
 err_gpio:
-	backlight_device_unregister(bldev);
+	if (bldev != NULL)
+		backlight_device_unregister(bldev);
 err_bl:
 	destroy_workqueue(td->workqueue);
 err_wq:
@@ -1126,9 +1108,11 @@ static void __exit taal_remove(struct omap_dss_device *dssdev)
 	}
 
 	bldev = td->bldev;
-	bldev->props.power = FB_BLANK_POWERDOWN;
-	taal_bl_update_status(bldev);
-	backlight_device_unregister(bldev);
+	if (bldev != NULL) {
+		bldev->props.power = FB_BLANK_POWERDOWN;
+		taal_bl_update_status(bldev);
+		backlight_device_unregister(bldev);
+	}
 
 	taal_cancel_ulps_work(dssdev);
 	taal_cancel_esd_work(dssdev);
diff --git a/include/video/omap-panel-nokia-dsi.h b/include/video/omap-panel-nokia-dsi.h
index 921ae9327228..7dc71f9c13e6 100644
--- a/include/video/omap-panel-nokia-dsi.h
+++ b/include/video/omap-panel-nokia-dsi.h
@@ -10,9 +10,7 @@ struct omap_dss_device;
  * @ext_te_gpio: external TE GPIO
  * @esd_interval: interval of ESD checks, 0 = disabled (ms)
  * @ulps_timeout: time to wait before entering ULPS, 0 = disabled (ms)
- * @max_backlight_level: maximum backlight level
- * @set_backlight: pointer to backlight set function
- * @get_backlight: pointer to backlight get function
+ * @use_dsi_backlight: true if panel uses DSI command to control backlight
  */
 struct nokia_dsi_panel_data {
 	const char *name;
@@ -25,9 +23,7 @@ struct nokia_dsi_panel_data {
 	unsigned esd_interval;
 	unsigned ulps_timeout;
 
-	int max_backlight_level;
-	int (*set_backlight)(struct omap_dss_device *dssdev, int level);
-	int (*get_backlight)(struct omap_dss_device *dssdev);
+	bool use_dsi_backlight;
 };
 
 #endif /* __OMAP_NOKIA_DSI_PANEL_H */
-- 
cgit 1.4.1


From 562a060611de60d6cceecb8a71847216679eef2a Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 21 Apr 2011 19:53:59 +0300
Subject: OMAPDSS: Add N800 panel driver

This is a driver for N800's display, ported from the old omapfb. This is
a slightly lighter version of the driver as not all features of the old
driver can be ported without big changes to DSS2, and also because some
of the HW features used in the old driver are unclear (e.g. the power
management part).

That said, the new driver works fine for basic use.

Architecturally the driver is not as neat as it could be. N800's display
HW consists of a display buffer chip and a panel, and ideally they would
be represented by separate, independent drivers. This is not currently
possible, and this driver contains both buffer chip and panel driver.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays/Kconfig      |   7 +
 drivers/video/omap2/displays/Makefile     |   1 +
 drivers/video/omap2/displays/panel-n8x0.c | 747 ++++++++++++++++++++++++++++++
 include/video/omap-panel-n8x0.h           |  15 +
 4 files changed, 770 insertions(+)
 create mode 100644 drivers/video/omap2/displays/panel-n8x0.c
 create mode 100644 include/video/omap-panel-n8x0.h

(limited to 'include/video')

diff --git a/drivers/video/omap2/displays/Kconfig b/drivers/video/omap2/displays/Kconfig
index 16e3eab444c4..0760c0448a06 100644
--- a/drivers/video/omap2/displays/Kconfig
+++ b/drivers/video/omap2/displays/Kconfig
@@ -62,4 +62,11 @@ config PANEL_ACX565AKM
 	select BACKLIGHT_CLASS_DEVICE
 	help
 	  This is the LCD panel used on Nokia N900
+
+config PANEL_N8X0
+	tristate "N8X0 Panel"
+	depends on OMAP2_DSS_RFBI && SPI
+	select BACKLIGHT_CLASS_DEVICE
+	help
+	  This is the LCD panel used on Nokia N8x0
 endmenu
diff --git a/drivers/video/omap2/displays/Makefile b/drivers/video/omap2/displays/Makefile
index abfda35d82d4..fbfafc6eebb4 100644
--- a/drivers/video/omap2/displays/Makefile
+++ b/drivers/video/omap2/displays/Makefile
@@ -8,3 +8,4 @@ obj-$(CONFIG_PANEL_TAAL) += panel-taal.o
 obj-$(CONFIG_PANEL_PICODLP) +=  panel-picodlp.o
 obj-$(CONFIG_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o
 obj-$(CONFIG_PANEL_ACX565AKM) += panel-acx565akm.o
+obj-$(CONFIG_PANEL_N8X0) += panel-n8x0.o
diff --git a/drivers/video/omap2/displays/panel-n8x0.c b/drivers/video/omap2/displays/panel-n8x0.c
new file mode 100644
index 000000000000..150e8bae35a1
--- /dev/null
+++ b/drivers/video/omap2/displays/panel-n8x0.c
@@ -0,0 +1,747 @@
+/* #define DEBUG */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/spi/spi.h>
+#include <linux/backlight.h>
+#include <linux/fb.h>
+
+#include <video/omapdss.h>
+#include <video/omap-panel-n8x0.h>
+
+#define BLIZZARD_REV_CODE                      0x00
+#define BLIZZARD_CONFIG                        0x02
+#define BLIZZARD_PLL_DIV                       0x04
+#define BLIZZARD_PLL_LOCK_RANGE                0x06
+#define BLIZZARD_PLL_CLOCK_SYNTH_0             0x08
+#define BLIZZARD_PLL_CLOCK_SYNTH_1             0x0a
+#define BLIZZARD_PLL_MODE                      0x0c
+#define BLIZZARD_CLK_SRC                       0x0e
+#define BLIZZARD_MEM_BANK0_ACTIVATE            0x10
+#define BLIZZARD_MEM_BANK0_STATUS              0x14
+#define BLIZZARD_PANEL_CONFIGURATION           0x28
+#define BLIZZARD_HDISP                         0x2a
+#define BLIZZARD_HNDP                          0x2c
+#define BLIZZARD_VDISP0                        0x2e
+#define BLIZZARD_VDISP1                        0x30
+#define BLIZZARD_VNDP                          0x32
+#define BLIZZARD_HSW                           0x34
+#define BLIZZARD_VSW                           0x38
+#define BLIZZARD_DISPLAY_MODE                  0x68
+#define BLIZZARD_INPUT_WIN_X_START_0           0x6c
+#define BLIZZARD_DATA_SOURCE_SELECT            0x8e
+#define BLIZZARD_DISP_MEM_DATA_PORT            0x90
+#define BLIZZARD_DISP_MEM_READ_ADDR0           0x92
+#define BLIZZARD_POWER_SAVE                    0xE6
+#define BLIZZARD_NDISP_CTRL_STATUS             0xE8
+
+/* Data source select */
+/* For S1D13745 */
+#define BLIZZARD_SRC_WRITE_LCD_BACKGROUND	0x00
+#define BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE	0x01
+#define BLIZZARD_SRC_WRITE_OVERLAY_ENABLE	0x04
+#define BLIZZARD_SRC_DISABLE_OVERLAY		0x05
+/* For S1D13744 */
+#define BLIZZARD_SRC_WRITE_LCD			0x00
+#define BLIZZARD_SRC_BLT_LCD			0x06
+
+#define BLIZZARD_COLOR_RGB565			0x01
+#define BLIZZARD_COLOR_YUV420			0x09
+
+#define BLIZZARD_VERSION_S1D13745		0x01	/* Hailstorm */
+#define BLIZZARD_VERSION_S1D13744		0x02	/* Blizzard */
+
+#define MIPID_CMD_READ_DISP_ID		0x04
+#define MIPID_CMD_READ_RED		0x06
+#define MIPID_CMD_READ_GREEN		0x07
+#define MIPID_CMD_READ_BLUE		0x08
+#define MIPID_CMD_READ_DISP_STATUS	0x09
+#define MIPID_CMD_RDDSDR		0x0F
+#define MIPID_CMD_SLEEP_IN		0x10
+#define MIPID_CMD_SLEEP_OUT		0x11
+#define MIPID_CMD_DISP_OFF		0x28
+#define MIPID_CMD_DISP_ON		0x29
+
+static struct panel_drv_data {
+	struct mutex lock;
+
+	struct omap_dss_device *dssdev;
+	struct spi_device *spidev;
+	struct backlight_device *bldev;
+
+	int blizzard_ver;
+} s_drv_data;
+
+
+static inline
+struct panel_n8x0_data *get_board_data(const struct omap_dss_device *dssdev)
+{
+	return dssdev->data;
+}
+
+static inline
+struct panel_drv_data *get_drv_data(const struct omap_dss_device *dssdev)
+{
+	return &s_drv_data;
+}
+
+
+static inline void blizzard_cmd(u8 cmd)
+{
+	omap_rfbi_write_command(&cmd, 1);
+}
+
+static inline void blizzard_write(u8 cmd, const u8 *buf, int len)
+{
+	omap_rfbi_write_command(&cmd, 1);
+	omap_rfbi_write_data(buf, len);
+}
+
+static inline void blizzard_read(u8 cmd, u8 *buf, int len)
+{
+	omap_rfbi_write_command(&cmd, 1);
+	omap_rfbi_read_data(buf, len);
+}
+
+static u8 blizzard_read_reg(u8 cmd)
+{
+	u8 data;
+	blizzard_read(cmd, &data, 1);
+	return data;
+}
+
+static void blizzard_ctrl_setup_update(struct omap_dss_device *dssdev,
+		int x, int y, int w, int h)
+{
+	struct panel_drv_data *ddata = get_drv_data(dssdev);
+	u8 tmp[18];
+	int x_end, y_end;
+
+	x_end = x + w - 1;
+	y_end = y + h - 1;
+
+	tmp[0] = x;
+	tmp[1] = x >> 8;
+	tmp[2] = y;
+	tmp[3] = y >> 8;
+	tmp[4] = x_end;
+	tmp[5] = x_end >> 8;
+	tmp[6] = y_end;
+	tmp[7] = y_end >> 8;
+
+	/* scaling? */
+	tmp[8] = x;
+	tmp[9] = x >> 8;
+	tmp[10] = y;
+	tmp[11] = y >> 8;
+	tmp[12] = x_end;
+	tmp[13] = x_end >> 8;
+	tmp[14] = y_end;
+	tmp[15] = y_end >> 8;
+
+	tmp[16] = BLIZZARD_COLOR_RGB565;
+
+	if (ddata->blizzard_ver == BLIZZARD_VERSION_S1D13745)
+		tmp[17] = BLIZZARD_SRC_WRITE_LCD_BACKGROUND;
+	else
+		tmp[17] = ddata->blizzard_ver == BLIZZARD_VERSION_S1D13744 ?
+			BLIZZARD_SRC_WRITE_LCD :
+			BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE;
+
+	omap_rfbi_configure(dssdev, 16, 8);
+
+	blizzard_write(BLIZZARD_INPUT_WIN_X_START_0, tmp, 18);
+
+	omap_rfbi_configure(dssdev, 16, 16);
+}
+
+static void mipid_transfer(struct spi_device *spi, int cmd, const u8 *wbuf,
+		int wlen, u8 *rbuf, int rlen)
+{
+	struct spi_message	m;
+	struct spi_transfer	*x, xfer[4];
+	u16			w;
+	int			r;
+
+	spi_message_init(&m);
+
+	memset(xfer, 0, sizeof(xfer));
+	x = &xfer[0];
+
+	cmd &=  0xff;
+	x->tx_buf		= &cmd;
+	x->bits_per_word	= 9;
+	x->len			= 2;
+	spi_message_add_tail(x, &m);
+
+	if (wlen) {
+		x++;
+		x->tx_buf		= wbuf;
+		x->len			= wlen;
+		x->bits_per_word	= 9;
+		spi_message_add_tail(x, &m);
+	}
+
+	if (rlen) {
+		x++;
+		x->rx_buf	= &w;
+		x->len		= 1;
+		spi_message_add_tail(x, &m);
+
+		if (rlen > 1) {
+			/* Arrange for the extra clock before the first
+			 * data bit.
+			 */
+			x->bits_per_word = 9;
+			x->len		 = 2;
+
+			x++;
+			x->rx_buf	 = &rbuf[1];
+			x->len		 = rlen - 1;
+			spi_message_add_tail(x, &m);
+		}
+	}
+
+	r = spi_sync(spi, &m);
+	if (r < 0)
+		dev_dbg(&spi->dev, "spi_sync %d\n", r);
+
+	if (rlen)
+		rbuf[0] = w & 0xff;
+}
+
+static inline void mipid_cmd(struct spi_device *spi, int cmd)
+{
+	mipid_transfer(spi, cmd, NULL, 0, NULL, 0);
+}
+
+static inline void mipid_write(struct spi_device *spi,
+		int reg, const u8 *buf, int len)
+{
+	mipid_transfer(spi, reg, buf, len, NULL, 0);
+}
+
+static inline void mipid_read(struct spi_device *spi,
+		int reg, u8 *buf, int len)
+{
+	mipid_transfer(spi, reg, NULL, 0, buf, len);
+}
+
+static void set_data_lines(struct spi_device *spi, int data_lines)
+{
+	u16 par;
+
+	switch (data_lines) {
+	case 16:
+		par = 0x150;
+		break;
+	case 18:
+		par = 0x160;
+		break;
+	case 24:
+		par = 0x170;
+		break;
+	}
+
+	mipid_write(spi, 0x3a, (u8 *)&par, 2);
+}
+
+static void send_init_string(struct spi_device *spi)
+{
+	u16 initpar[] = { 0x0102, 0x0100, 0x0100 };
+	mipid_write(spi, 0xc2, (u8 *)initpar, sizeof(initpar));
+}
+
+static void send_display_on(struct spi_device *spi)
+{
+	mipid_cmd(spi, MIPID_CMD_DISP_ON);
+}
+
+static void send_display_off(struct spi_device *spi)
+{
+	mipid_cmd(spi, MIPID_CMD_DISP_OFF);
+}
+
+static void send_sleep_out(struct spi_device *spi)
+{
+	mipid_cmd(spi, MIPID_CMD_SLEEP_OUT);
+	msleep(120);
+}
+
+static void send_sleep_in(struct spi_device *spi)
+{
+	mipid_cmd(spi, MIPID_CMD_SLEEP_IN);
+	msleep(50);
+}
+
+static int n8x0_panel_power_on(struct omap_dss_device *dssdev)
+{
+	int r;
+	struct panel_n8x0_data *bdata = get_board_data(dssdev);
+	struct panel_drv_data *ddata = get_drv_data(dssdev);
+	struct spi_device *spi = ddata->spidev;
+	u8 rev, conf;
+	u8 display_id[3];
+	const char *panel_name;
+
+	if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
+		return 0;
+
+	gpio_direction_output(bdata->ctrl_pwrdown, 1);
+
+	if (bdata->platform_enable) {
+		r = bdata->platform_enable(dssdev);
+		if (r)
+			goto err_plat_en;
+	}
+
+	r = omapdss_rfbi_display_enable(dssdev);
+	if (r)
+		goto err_rfbi_en;
+
+	rev = blizzard_read_reg(BLIZZARD_REV_CODE);
+	conf = blizzard_read_reg(BLIZZARD_CONFIG);
+
+	switch (rev & 0xfc) {
+	case 0x9c:
+		ddata->blizzard_ver = BLIZZARD_VERSION_S1D13744;
+		dev_info(&dssdev->dev, "s1d13744 LCD controller rev %d "
+			"initialized (CNF pins %x)\n", rev & 0x03, conf & 0x07);
+		break;
+	case 0xa4:
+		ddata->blizzard_ver = BLIZZARD_VERSION_S1D13745;
+		dev_info(&dssdev->dev, "s1d13745 LCD controller rev %d "
+			"initialized (CNF pins %x)\n", rev & 0x03, conf & 0x07);
+		break;
+	default:
+		dev_err(&dssdev->dev, "invalid s1d1374x revision %02x\n", rev);
+		r = -ENODEV;
+		goto err_inv_chip;
+	}
+
+	/* panel */
+
+	gpio_direction_output(bdata->panel_reset, 1);
+
+	mipid_read(spi, MIPID_CMD_READ_DISP_ID, display_id, 3);
+	dev_dbg(&spi->dev, "MIPI display ID: %02x%02x%02x\n",
+			display_id[0], display_id[1], display_id[2]);
+
+	switch (display_id[0]) {
+	case 0x45:
+		panel_name = "lph8923";
+		break;
+	case 0x83:
+		panel_name = "ls041y3";
+		break;
+	default:
+		dev_err(&dssdev->dev, "invalid display ID 0x%x\n",
+				display_id[0]);
+		r = -ENODEV;
+		goto err_inv_panel;
+	}
+
+	dev_info(&dssdev->dev, "%s rev %02x LCD detected\n",
+			panel_name, display_id[1]);
+
+	send_sleep_out(spi);
+	send_init_string(spi);
+	set_data_lines(spi, 24);
+	send_display_on(spi);
+
+	return 0;
+
+err_inv_panel:
+	/*
+	 * HACK: we should turn off the panel here, but there is some problem
+	 * with the initialization sequence, and we fail to init the panel if we
+	 * have turned it off
+	 */
+	/* gpio_direction_output(bdata->panel_reset, 0); */
+err_inv_chip:
+	omapdss_rfbi_display_disable(dssdev);
+err_rfbi_en:
+	if (bdata->platform_disable)
+		bdata->platform_disable(dssdev);
+err_plat_en:
+	gpio_direction_output(bdata->ctrl_pwrdown, 0);
+	return r;
+}
+
+static void n8x0_panel_power_off(struct omap_dss_device *dssdev)
+{
+	struct panel_n8x0_data *bdata = get_board_data(dssdev);
+	struct panel_drv_data *ddata = get_drv_data(dssdev);
+	struct spi_device *spi = ddata->spidev;
+
+	if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+		return;
+
+	send_display_off(spi);
+	send_sleep_in(spi);
+
+	if (bdata->platform_disable)
+		bdata->platform_disable(dssdev);
+
+	/*
+	 * HACK: we should turn off the panel here, but there is some problem
+	 * with the initialization sequence, and we fail to init the panel if we
+	 * have turned it off
+	 */
+	/* gpio_direction_output(bdata->panel_reset, 0); */
+	gpio_direction_output(bdata->ctrl_pwrdown, 0);
+	omapdss_rfbi_display_disable(dssdev);
+}
+
+static const struct rfbi_timings n8x0_panel_timings = {
+	.cs_on_time     = 0,
+
+	.we_on_time     = 9000,
+	.we_off_time    = 18000,
+	.we_cycle_time  = 36000,
+
+	.re_on_time     = 9000,
+	.re_off_time    = 27000,
+	.re_cycle_time  = 36000,
+
+	.access_time    = 27000,
+	.cs_off_time    = 36000,
+
+	.cs_pulse_width = 0,
+};
+
+static int n8x0_bl_update_status(struct backlight_device *dev)
+{
+	struct omap_dss_device *dssdev = dev_get_drvdata(&dev->dev);
+	struct panel_n8x0_data *bdata = get_board_data(dssdev);
+	struct panel_drv_data *ddata = get_drv_data(dssdev);
+	int r;
+	int level;
+
+	mutex_lock(&ddata->lock);
+
+	if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
+			dev->props.power == FB_BLANK_UNBLANK)
+		level = dev->props.brightness;
+	else
+		level = 0;
+
+	dev_dbg(&dssdev->dev, "update brightness to %d\n", level);
+
+	if (!bdata->set_backlight)
+		r = -EINVAL;
+	else
+		r = bdata->set_backlight(dssdev, level);
+
+	mutex_unlock(&ddata->lock);
+
+	return r;
+}
+
+static int n8x0_bl_get_intensity(struct backlight_device *dev)
+{
+	if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
+			dev->props.power == FB_BLANK_UNBLANK)
+		return dev->props.brightness;
+
+	return 0;
+}
+
+static const struct backlight_ops n8x0_bl_ops = {
+	.get_brightness = n8x0_bl_get_intensity,
+	.update_status  = n8x0_bl_update_status,
+};
+
+static int n8x0_panel_probe(struct omap_dss_device *dssdev)
+{
+	struct panel_n8x0_data *bdata = get_board_data(dssdev);
+	struct panel_drv_data *ddata;
+	struct backlight_device *bldev;
+	struct backlight_properties props;
+	int r;
+
+	dev_dbg(&dssdev->dev, "probe\n");
+
+	if (!bdata)
+		return -EINVAL;
+
+	s_drv_data.dssdev = dssdev;
+
+	ddata = &s_drv_data;
+
+	mutex_init(&ddata->lock);
+
+	dssdev->panel.config = OMAP_DSS_LCD_TFT;
+	dssdev->panel.timings.x_res = 800;
+	dssdev->panel.timings.y_res = 480;
+	dssdev->ctrl.pixel_size = 16;
+	dssdev->ctrl.rfbi_timings = n8x0_panel_timings;
+
+	memset(&props, 0, sizeof(props));
+	props.max_brightness = 127;
+	props.type = BACKLIGHT_PLATFORM;
+	bldev = backlight_device_register(dev_name(&dssdev->dev), &dssdev->dev,
+			dssdev, &n8x0_bl_ops, &props);
+	if (IS_ERR(bldev)) {
+		r = PTR_ERR(bldev);
+		dev_err(&dssdev->dev, "register backlight failed\n");
+		return r;
+	}
+
+	ddata->bldev = bldev;
+
+	bldev->props.fb_blank = FB_BLANK_UNBLANK;
+	bldev->props.power = FB_BLANK_UNBLANK;
+	bldev->props.brightness = 127;
+
+	n8x0_bl_update_status(bldev);
+
+	return 0;
+}
+
+static void n8x0_panel_remove(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = get_drv_data(dssdev);
+	struct backlight_device *bldev;
+
+	dev_dbg(&dssdev->dev, "remove\n");
+
+	bldev = ddata->bldev;
+	bldev->props.power = FB_BLANK_POWERDOWN;
+	n8x0_bl_update_status(bldev);
+	backlight_device_unregister(bldev);
+
+	dev_set_drvdata(&dssdev->dev, NULL);
+}
+
+static int n8x0_panel_enable(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = get_drv_data(dssdev);
+	int r;
+
+	dev_dbg(&dssdev->dev, "enable\n");
+
+	mutex_lock(&ddata->lock);
+
+	rfbi_bus_lock();
+
+	r = n8x0_panel_power_on(dssdev);
+
+	rfbi_bus_unlock();
+
+	if (r) {
+		mutex_unlock(&ddata->lock);
+		return r;
+	}
+
+	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+	mutex_unlock(&ddata->lock);
+
+	return 0;
+}
+
+static void n8x0_panel_disable(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = get_drv_data(dssdev);
+
+	dev_dbg(&dssdev->dev, "disable\n");
+
+	mutex_lock(&ddata->lock);
+
+	rfbi_bus_lock();
+
+	n8x0_panel_power_off(dssdev);
+
+	rfbi_bus_unlock();
+
+	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+
+	mutex_unlock(&ddata->lock);
+}
+
+static int n8x0_panel_suspend(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = get_drv_data(dssdev);
+
+	dev_dbg(&dssdev->dev, "suspend\n");
+
+	mutex_lock(&ddata->lock);
+
+	rfbi_bus_lock();
+
+	n8x0_panel_power_off(dssdev);
+
+	rfbi_bus_unlock();
+
+	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
+
+	mutex_unlock(&ddata->lock);
+
+	return 0;
+}
+
+static int n8x0_panel_resume(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = get_drv_data(dssdev);
+	int r;
+
+	dev_dbg(&dssdev->dev, "resume\n");
+
+	mutex_lock(&ddata->lock);
+
+	rfbi_bus_lock();
+
+	r = n8x0_panel_power_on(dssdev);
+
+	rfbi_bus_unlock();
+
+	if (r) {
+		mutex_unlock(&ddata->lock);
+		return r;
+	}
+
+	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+	mutex_unlock(&ddata->lock);
+
+	return 0;
+}
+
+static void n8x0_panel_get_timings(struct omap_dss_device *dssdev,
+		struct omap_video_timings *timings)
+{
+	*timings = dssdev->panel.timings;
+}
+
+static void n8x0_panel_get_resolution(struct omap_dss_device *dssdev,
+		u16 *xres, u16 *yres)
+{
+	*xres = dssdev->panel.timings.x_res;
+	*yres = dssdev->panel.timings.y_res;
+}
+
+static void update_done(void *data)
+{
+	rfbi_bus_unlock();
+}
+
+static int n8x0_panel_update(struct omap_dss_device *dssdev,
+		u16 x, u16 y, u16 w, u16 h)
+{
+	struct panel_drv_data *ddata = get_drv_data(dssdev);
+
+	dev_dbg(&dssdev->dev, "update\n");
+
+	mutex_lock(&ddata->lock);
+	rfbi_bus_lock();
+
+	omap_rfbi_prepare_update(dssdev, &x, &y, &w, &h);
+
+	blizzard_ctrl_setup_update(dssdev, x, y, w, h);
+
+	omap_rfbi_update(dssdev, x, y, w, h, update_done, NULL);
+
+	mutex_unlock(&ddata->lock);
+
+	return 0;
+}
+
+static int n8x0_panel_sync(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = get_drv_data(dssdev);
+
+	dev_dbg(&dssdev->dev, "sync\n");
+
+	mutex_lock(&ddata->lock);
+	rfbi_bus_lock();
+	rfbi_bus_unlock();
+	mutex_unlock(&ddata->lock);
+
+	return 0;
+}
+
+static struct omap_dss_driver n8x0_panel_driver = {
+	.probe		= n8x0_panel_probe,
+	.remove		= n8x0_panel_remove,
+
+	.enable		= n8x0_panel_enable,
+	.disable	= n8x0_panel_disable,
+	.suspend	= n8x0_panel_suspend,
+	.resume		= n8x0_panel_resume,
+
+	.update		= n8x0_panel_update,
+	.sync		= n8x0_panel_sync,
+
+	.get_resolution	= n8x0_panel_get_resolution,
+	.get_recommended_bpp = omapdss_default_get_recommended_bpp,
+
+	.get_timings	= n8x0_panel_get_timings,
+
+	.driver         = {
+		.name   = "n8x0_panel",
+		.owner  = THIS_MODULE,
+	},
+};
+
+/* PANEL */
+
+static int mipid_spi_probe(struct spi_device *spi)
+{
+	dev_dbg(&spi->dev, "mipid_spi_probe\n");
+
+	spi->mode = SPI_MODE_0;
+
+	s_drv_data.spidev = spi;
+
+	return 0;
+}
+
+static int mipid_spi_remove(struct spi_device *spi)
+{
+	dev_dbg(&spi->dev, "mipid_spi_remove\n");
+	return 0;
+}
+
+static struct spi_driver mipid_spi_driver = {
+	.driver = {
+		.name	= "lcd_mipid",
+		.bus	= &spi_bus_type,
+		.owner	= THIS_MODULE,
+	},
+	.probe	= mipid_spi_probe,
+	.remove	= __devexit_p(mipid_spi_remove),
+};
+
+static int __init n8x0_panel_drv_init(void)
+{
+	int r;
+
+	r = spi_register_driver(&mipid_spi_driver);
+	if (r) {
+		pr_err("n8x0_panel: spi driver registration failed\n");
+		return r;
+	}
+
+	r = omap_dss_register_driver(&n8x0_panel_driver);
+	if (r) {
+		pr_err("n8x0_panel: dss driver registration failed\n");
+		spi_unregister_driver(&mipid_spi_driver);
+		return r;
+	}
+
+	return 0;
+}
+
+static void __exit n8x0_panel_drv_exit(void)
+{
+	spi_unregister_driver(&mipid_spi_driver);
+
+	omap_dss_unregister_driver(&n8x0_panel_driver);
+}
+
+module_init(n8x0_panel_drv_init);
+module_exit(n8x0_panel_drv_exit);
+MODULE_LICENSE("GPL");
diff --git a/include/video/omap-panel-n8x0.h b/include/video/omap-panel-n8x0.h
new file mode 100644
index 000000000000..50a1302e2cfd
--- /dev/null
+++ b/include/video/omap-panel-n8x0.h
@@ -0,0 +1,15 @@
+#ifndef __OMAP_PANEL_N8X0_H
+#define __OMAP_PANEL_N8X0_H
+
+struct omap_dss_device;
+
+struct panel_n8x0_data {
+	int (*platform_enable)(struct omap_dss_device *dssdev);
+	void (*platform_disable)(struct omap_dss_device *dssdev);
+	int panel_reset;
+	int ctrl_pwrdown;
+
+	int (*set_backlight)(struct omap_dss_device *dssdev, int level);
+};
+
+#endif
-- 
cgit 1.4.1


From 212b0d50e2eb7fc60f7bea1e90e5867b5fc0647d Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 26 Sep 2011 19:16:59 +0300
Subject: OMAPDSS: remove vaddr from overlay info

overlay_info struct, used to configure overlays, currently includes both
physical and virtual addresses for the pixels. The vaddr was added to
support more exotic configurations where CPU would be used to update a
display, but it is not currently used and there has been no interest in
the feature. Using CPU to update a screen is also less interesting now
that OMAP4 has two LCD outputs.

This patch removes the vaddr field, and modifies the users of omapdss
accordingly. This makes the use of omapdss a bit simpler, as the user
doesn't need to think if it needs to give the vaddr.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/media/video/omap/omap_vout.c     |  1 -
 drivers/video/omap2/omapfb/omapfb-main.c | 19 +++++--------------
 include/video/omapdss.h                  |  1 -
 3 files changed, 5 insertions(+), 16 deletions(-)

(limited to 'include/video')

diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c
index b5ef36222440..e2f4780c00a0 100644
--- a/drivers/media/video/omap/omap_vout.c
+++ b/drivers/media/video/omap/omap_vout.c
@@ -400,7 +400,6 @@ static int omapvid_setup_overlay(struct omap_vout_device *vout,
 
 	ovl->get_overlay_info(ovl, &info);
 	info.paddr = addr;
-	info.vaddr = NULL;
 	info.width = cropwidth;
 	info.height = cropheight;
 	info.color_mode = vout->dss_mode;
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index c84cc2964154..70aa47de7146 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -808,19 +808,15 @@ static unsigned calc_rotation_offset_vrfb(const struct fb_var_screeninfo *var,
 static void omapfb_calc_addr(const struct omapfb_info *ofbi,
 			     const struct fb_var_screeninfo *var,
 			     const struct fb_fix_screeninfo *fix,
-			     int rotation, u32 *paddr, void __iomem **vaddr)
+			     int rotation, u32 *paddr)
 {
 	u32 data_start_p;
-	void __iomem *data_start_v;
 	int offset;
 
-	if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
+	if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
 		data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation);
-		data_start_v = NULL;
-	} else {
+	else
 		data_start_p = omapfb_get_region_paddr(ofbi);
-		data_start_v = omapfb_get_region_vaddr(ofbi);
-	}
 
 	if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
 		offset = calc_rotation_offset_vrfb(var, fix, rotation);
@@ -828,16 +824,14 @@ static void omapfb_calc_addr(const struct omapfb_info *ofbi,
 		offset = calc_rotation_offset_dma(var, fix, rotation);
 
 	data_start_p += offset;
-	data_start_v += offset;
 
 	if (offset)
 		DBG("offset %d, %d = %d\n",
 		    var->xoffset, var->yoffset, offset);
 
-	DBG("paddr %x, vaddr %p\n", data_start_p, data_start_v);
+	DBG("paddr %x\n", data_start_p);
 
 	*paddr = data_start_p;
-	*vaddr = data_start_v;
 }
 
 /* setup overlay according to the fb */
@@ -850,7 +844,6 @@ int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
 	struct fb_fix_screeninfo *fix = &fbi->fix;
 	enum omap_color_mode mode = 0;
 	u32 data_start_p = 0;
-	void __iomem *data_start_v = NULL;
 	struct omap_overlay_info info;
 	int xres, yres;
 	int screen_width;
@@ -880,8 +873,7 @@ int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
 	}
 
 	if (ofbi->region->size)
-		omapfb_calc_addr(ofbi, var, fix, rotation,
-				 &data_start_p, &data_start_v);
+		omapfb_calc_addr(ofbi, var, fix, rotation, &data_start_p);
 
 	r = fb_mode_to_dss_mode(var, &mode);
 	if (r) {
@@ -910,7 +902,6 @@ int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
 		mirror = ofbi->mirror;
 
 	info.paddr = data_start_p;
-	info.vaddr = data_start_v;
 	info.screen_width = screen_width;
 	info.width = xres;
 	info.height = yres;
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index a927eea8e9b9..2123fb2d51cb 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -358,7 +358,6 @@ struct omap_overlay_info {
 	bool enabled;
 
 	u32 paddr;
-	void __iomem *vaddr;
 	u32 p_uv_addr;  /* for NV12 format */
 	u16 screen_width;
 	u16 width;
-- 
cgit 1.4.1


From 11354dd58da1134ec9c96b65104e5cf2d50e1eb9 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Mon, 26 Sep 2011 11:47:29 +0530
Subject: OMAPDSS/OMAP_VOUT: Fix incorrect OMAP3-alpha compatibility setting

On OMAP3, in order to enable alpha blending for LCD and TV managers, we needed
to set LCDALPHABLENDERENABLE/TVALPHABLENDERENABLE bits in DISPC_CONFIG. On
OMAP4, alpha blending is always enabled by default, if the above bits are set,
we switch to an OMAP3 compatibility mode where the zorder values in the pipeline
attribute registers are ignored and a fixed priority is configured.

Rename the manager_info member "alpha_enabled" to "partial_alpha_enabled" for
more clarity. Introduce two dss_features FEAT_ALPHA_FIXED_ZORDER and
FEAT_ALPHA_FREE_ZORDER which represent OMAP3-alpha compatibility mode and OMAP4
alpha mode respectively. Introduce an overlay cap for ZORDER. The DSS2 user is
expected to check for the ZORDER cap, if an overlay doesn't have this cap, the
user is expected to set the parameter partial_alpha_enabled. If the overlay has
ZORDER cap, the DSS2 user can assume that alpha blending is already enabled.

Don't support OMAP3 compatibility mode for now. Trying to read/write to
alpha_blending_enabled sysfs attribute issues a warning for OMAP4 and does not
set the LCDALPHABLENDERENABLE/TVALPHABLENDERENABLE bits.

Change alpha_enabled to partial_alpha_enabled in the omap_vout driver. Use
overlay cap "OMAP_DSS_OVL_CAP_GLOBAL_ALPHA" to check if overlay supports alpha
blending or not. Replace this with checks for VIDEO1 pipeline.

Cc: linux-media@vger.kernel.org
Cc: Lajos Molnar <molnar@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Acked-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/media/video/omap/omap_vout.c   | 17 ++++++++++++-----
 drivers/video/omap2/dss/dispc.c        | 24 ++++++++++++------------
 drivers/video/omap2/dss/dss.h          |  4 ++--
 drivers/video/omap2/dss/dss_features.c | 22 +++++++++++-----------
 drivers/video/omap2/dss/dss_features.h |  3 ++-
 drivers/video/omap2/dss/manager.c      | 28 +++++++++++++++++++---------
 include/video/omapdss.h                |  3 ++-
 7 files changed, 60 insertions(+), 41 deletions(-)

(limited to 'include/video')

diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c
index e2f4780c00a0..ec4a31f577a2 100644
--- a/drivers/media/video/omap/omap_vout.c
+++ b/drivers/media/video/omap/omap_vout.c
@@ -1164,12 +1164,17 @@ static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh,
 {
 	int ret = 0;
 	struct omap_vout_device *vout = fh;
+	struct omap_overlay *ovl;
+	struct omapvideo_info *ovid;
 	struct v4l2_window *win = &f->fmt.win;
 
+	ovid = &vout->vid_info;
+	ovl = ovid->overlays[0];
+
 	ret = omap_vout_try_window(&vout->fbuf, win);
 
 	if (!ret) {
-		if (vout->vid == OMAP_VIDEO1)
+		if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
 			win->global_alpha = 255;
 		else
 			win->global_alpha = f->fmt.win.global_alpha;
@@ -1193,8 +1198,8 @@ static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh,
 
 	ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win);
 	if (!ret) {
-		/* Video1 plane does not support global alpha */
-		if (ovl->id == OMAP_DSS_VIDEO1)
+		/* Video1 plane does not support global alpha on OMAP3 */
+		if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
 			vout->win.global_alpha = 255;
 		else
 			vout->win.global_alpha = f->fmt.win.global_alpha;
@@ -1787,7 +1792,9 @@ static int vidioc_s_fbuf(struct file *file, void *fh,
 	if (ovl->manager && ovl->manager->get_manager_info &&
 			ovl->manager->set_manager_info) {
 		ovl->manager->get_manager_info(ovl->manager, &info);
-		info.alpha_enabled = enable;
+		/* enable this only if there is no zorder cap */
+		if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0)
+			info.partial_alpha_enabled = enable;
 		if (ovl->manager->set_manager_info(ovl->manager, &info))
 			return -EINVAL;
 	}
@@ -1819,7 +1826,7 @@ static int vidioc_g_fbuf(struct file *file, void *fh,
 	}
 	if (ovl->manager && ovl->manager->get_manager_info) {
 		ovl->manager->get_manager_info(ovl->manager, &info);
-		if (info.alpha_enabled)
+		if (info.partial_alpha_enabled)
 			a->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
 	}
 
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 5e6849e224c2..e0639d328c5b 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -179,7 +179,8 @@ static void dispc_save_context(void)
 	SR(CONTROL);
 	SR(CONFIG);
 	SR(LINE_NUMBER);
-	if (dss_has_feature(FEAT_GLOBAL_ALPHA))
+	if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER) ||
+			dss_has_feature(FEAT_ALPHA_FREE_ZORDER))
 		SR(GLOBAL_ALPHA);
 	if (dss_has_feature(FEAT_MGR_LCD2)) {
 		SR(CONTROL2);
@@ -293,7 +294,8 @@ static void dispc_restore_context(void)
 	/*RR(CONTROL);*/
 	RR(CONFIG);
 	RR(LINE_NUMBER);
-	if (dss_has_feature(FEAT_GLOBAL_ALPHA))
+	if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER) ||
+			dss_has_feature(FEAT_ALPHA_FREE_ZORDER))
 		RR(GLOBAL_ALPHA);
 	if (dss_has_feature(FEAT_MGR_LCD2))
 		RR(CONFIG2);
@@ -2159,38 +2161,35 @@ void dispc_mgr_enable_trans_key(enum omap_channel ch, bool enable)
 	else /* OMAP_DSS_CHANNEL_LCD2 */
 		REG_FLD_MOD(DISPC_CONFIG2, enable, 10, 10);
 }
-void dispc_mgr_enable_alpha_blending(enum omap_channel ch, bool enable)
+
+void dispc_mgr_enable_alpha_fixed_zorder(enum omap_channel ch, bool enable)
 {
-	if (!dss_has_feature(FEAT_GLOBAL_ALPHA))
+	if (!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER))
 		return;
 
 	if (ch == OMAP_DSS_CHANNEL_LCD)
 		REG_FLD_MOD(DISPC_CONFIG, enable, 18, 18);
 	else if (ch == OMAP_DSS_CHANNEL_DIGIT)
 		REG_FLD_MOD(DISPC_CONFIG, enable, 19, 19);
-	else /* OMAP_DSS_CHANNEL_LCD2 */
-		REG_FLD_MOD(DISPC_CONFIG2, enable, 18, 18);
 }
-bool dispc_mgr_alpha_blending_enabled(enum omap_channel ch)
+
+bool dispc_mgr_alpha_fixed_zorder_enabled(enum omap_channel ch)
 {
 	bool enabled;
 
-	if (!dss_has_feature(FEAT_GLOBAL_ALPHA))
+	if (!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER))
 		return false;
 
 	if (ch == OMAP_DSS_CHANNEL_LCD)
 		enabled = REG_GET(DISPC_CONFIG, 18, 18);
 	else if (ch == OMAP_DSS_CHANNEL_DIGIT)
 		enabled = REG_GET(DISPC_CONFIG, 19, 19);
-	else if (ch == OMAP_DSS_CHANNEL_LCD2)
-		enabled = REG_GET(DISPC_CONFIG2, 18, 18);
 	else
 		BUG();
 
 	return enabled;
 }
 
-
 bool dispc_mgr_trans_key_enabled(enum omap_channel ch)
 {
 	bool enabled;
@@ -2603,7 +2602,8 @@ void dispc_dump_regs(struct seq_file *s)
 	DUMPREG(DISPC_CAPABLE);
 	DUMPREG(DISPC_LINE_STATUS);
 	DUMPREG(DISPC_LINE_NUMBER);
-	if (dss_has_feature(FEAT_GLOBAL_ALPHA))
+	if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER) ||
+			dss_has_feature(FEAT_ALPHA_FREE_ZORDER))
 		DUMPREG(DISPC_GLOBAL_ALPHA);
 	if (dss_has_feature(FEAT_MGR_LCD2)) {
 		DUMPREG(DISPC_CONTROL2);
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 865200724778..6308fc59fc9e 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -430,9 +430,9 @@ void dispc_mgr_get_trans_key(enum omap_channel ch,
 		enum omap_dss_trans_key_type *type,
 		u32 *trans_key);
 void dispc_mgr_enable_trans_key(enum omap_channel ch, bool enable);
-void dispc_mgr_enable_alpha_blending(enum omap_channel ch, bool enable);
+void dispc_mgr_enable_alpha_fixed_zorder(enum omap_channel ch, bool enable);
 bool dispc_mgr_trans_key_enabled(enum omap_channel ch);
-bool dispc_mgr_alpha_blending_enabled(enum omap_channel ch);
+bool dispc_mgr_alpha_fixed_zorder_enabled(enum omap_channel ch);
 void dispc_mgr_set_lcd_timings(enum omap_channel channel,
 		struct omap_video_timings *timings);
 void dispc_mgr_set_pol_freq(enum omap_channel channel,
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index a2fc8e058689..eb08b003ba49 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -248,15 +248,16 @@ static const enum omap_overlay_caps omap3630_dss_overlay_caps[] = {
 
 static const enum omap_overlay_caps omap4_dss_overlay_caps[] = {
 	/* OMAP_DSS_GFX */
-	OMAP_DSS_OVL_CAP_GLOBAL_ALPHA | OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA,
+	OMAP_DSS_OVL_CAP_GLOBAL_ALPHA | OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA |
+		OMAP_DSS_OVL_CAP_ZORDER,
 
 	/* OMAP_DSS_VIDEO1 */
 	OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_GLOBAL_ALPHA |
-		OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA,
+		OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA | OMAP_DSS_OVL_CAP_ZORDER,
 
 	/* OMAP_DSS_VIDEO2 */
 	OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_GLOBAL_ALPHA |
-		OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA,
+		OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA | OMAP_DSS_OVL_CAP_ZORDER,
 };
 
 static const char * const omap2_dss_clk_source_names[] = {
@@ -342,13 +343,13 @@ static const struct omap_dss_features omap3430_dss_features = {
 	.num_reg_fields = ARRAY_SIZE(omap3_dss_reg_fields),
 
 	.has_feature	=
-		FEAT_GLOBAL_ALPHA | FEAT_LCDENABLEPOL |
+		FEAT_LCDENABLEPOL |
 		FEAT_LCDENABLESIGNAL | FEAT_PCKFREEENABLE |
 		FEAT_FUNCGATED | FEAT_ROWREPEATENABLE |
 		FEAT_LINEBUFFERSPLIT | FEAT_RESIZECONF |
 		FEAT_DSI_PLL_FREQSEL | FEAT_DSI_REVERSE_TXCLKESC |
 		FEAT_VENC_REQUIRES_TV_DAC_CLK | FEAT_CPR | FEAT_PRELOAD |
-		FEAT_FIR_COEF_V,
+		FEAT_FIR_COEF_V | FEAT_ALPHA_FIXED_ZORDER,
 
 	.num_mgrs = 2,
 	.num_ovls = 3,
@@ -366,13 +367,13 @@ static const struct omap_dss_features omap3630_dss_features = {
 	.num_reg_fields = ARRAY_SIZE(omap3_dss_reg_fields),
 
 	.has_feature    =
-		FEAT_GLOBAL_ALPHA | FEAT_LCDENABLEPOL |
+		FEAT_LCDENABLEPOL |
 		FEAT_LCDENABLESIGNAL | FEAT_PCKFREEENABLE |
 		FEAT_FUNCGATED |
 		FEAT_ROWREPEATENABLE | FEAT_LINEBUFFERSPLIT |
 		FEAT_RESIZECONF | FEAT_DSI_PLL_PWR_BUG |
 		FEAT_DSI_PLL_FREQSEL | FEAT_CPR | FEAT_PRELOAD |
-		FEAT_FIR_COEF_V,
+		FEAT_FIR_COEF_V | FEAT_ALPHA_FIXED_ZORDER,
 
 	.num_mgrs = 2,
 	.num_ovls = 3,
@@ -392,12 +393,12 @@ static const struct omap_dss_features omap4430_es1_0_dss_features  = {
 	.num_reg_fields = ARRAY_SIZE(omap4_dss_reg_fields),
 
 	.has_feature	=
-		FEAT_GLOBAL_ALPHA |
 		FEAT_MGR_LCD2 |
 		FEAT_CORE_CLK_DIV | FEAT_LCD_CLK_SRC |
 		FEAT_DSI_DCS_CMD_CONFIG_VC | FEAT_DSI_VC_OCP_WIDTH |
 		FEAT_DSI_GNQ | FEAT_HANDLE_UV_SEPARATE | FEAT_ATTR2 |
-		FEAT_CPR | FEAT_PRELOAD | FEAT_FIR_COEF_V,
+		FEAT_CPR | FEAT_PRELOAD | FEAT_FIR_COEF_V |
+		FEAT_ALPHA_FREE_ZORDER,
 
 	.num_mgrs = 3,
 	.num_ovls = 3,
@@ -416,13 +417,12 @@ static const struct omap_dss_features omap4_dss_features = {
 	.num_reg_fields = ARRAY_SIZE(omap4_dss_reg_fields),
 
 	.has_feature	=
-		FEAT_GLOBAL_ALPHA |
 		FEAT_MGR_LCD2 |
 		FEAT_CORE_CLK_DIV | FEAT_LCD_CLK_SRC |
 		FEAT_DSI_DCS_CMD_CONFIG_VC | FEAT_DSI_VC_OCP_WIDTH |
 		FEAT_DSI_GNQ | FEAT_HDMI_CTS_SWMODE |
 		FEAT_HANDLE_UV_SEPARATE | FEAT_ATTR2 | FEAT_CPR |
-		FEAT_PRELOAD | FEAT_FIR_COEF_V,
+		FEAT_PRELOAD | FEAT_FIR_COEF_V | FEAT_ALPHA_FREE_ZORDER,
 
 	.num_mgrs = 3,
 	.num_ovls = 3,
diff --git a/drivers/video/omap2/dss/dss_features.h b/drivers/video/omap2/dss/dss_features.h
index cd606447fcfc..e81271a0e005 100644
--- a/drivers/video/omap2/dss/dss_features.h
+++ b/drivers/video/omap2/dss/dss_features.h
@@ -31,7 +31,6 @@
 
 /* DSS has feature id */
 enum dss_feat_id {
-	FEAT_GLOBAL_ALPHA		= 1 << 0,
 	FEAT_LCDENABLEPOL		= 1 << 3,
 	FEAT_LCDENABLESIGNAL		= 1 << 4,
 	FEAT_PCKFREEENABLE		= 1 << 5,
@@ -57,6 +56,8 @@ enum dss_feat_id {
 	FEAT_CPR			= 1 << 23,
 	FEAT_PRELOAD			= 1 << 24,
 	FEAT_FIR_COEF_V			= 1 << 25,
+	FEAT_ALPHA_FIXED_ZORDER		= 1 << 26,
+	FEAT_ALPHA_FREE_ZORDER		= 1 << 27,
 };
 
 /* DSS register field id */
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index fdbbeebcd75c..6e63845cc7d7 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -249,7 +249,10 @@ static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr,
 static ssize_t manager_alpha_blending_enabled_show(
 		struct omap_overlay_manager *mgr, char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.alpha_enabled);
+	WARN_ON(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER));
+
+	return snprintf(buf, PAGE_SIZE, "%d\n",
+		mgr->info.partial_alpha_enabled);
 }
 
 static ssize_t manager_alpha_blending_enabled_store(
@@ -260,13 +263,15 @@ static ssize_t manager_alpha_blending_enabled_store(
 	bool enable;
 	int r;
 
+	WARN_ON(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER));
+
 	r = strtobool(buf, &enable);
 	if (r)
 		return r;
 
 	mgr->get_manager_info(mgr, &info);
 
-	info.alpha_enabled = enable;
+	info.partial_alpha_enabled = enable;
 
 	r = mgr->set_manager_info(mgr, &info);
 	if (r)
@@ -966,7 +971,7 @@ static void configure_manager(enum omap_channel channel)
 	dispc_mgr_set_default_color(channel, mi->default_color);
 	dispc_mgr_set_trans_key(channel, mi->trans_key_type, mi->trans_key);
 	dispc_mgr_enable_trans_key(channel, mi->trans_enabled);
-	dispc_mgr_enable_alpha_blending(channel, mi->alpha_enabled);
+	dispc_mgr_enable_alpha_fixed_zorder(channel, mi->partial_alpha_enabled);
 	if (dss_has_feature(FEAT_CPR)) {
 		dispc_mgr_enable_cpr(channel, mi->cpr_enable);
 		dispc_mgr_set_cpr_coef(channel, &mi->cpr_coefs);
@@ -1481,12 +1486,17 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 
 static int dss_check_manager(struct omap_overlay_manager *mgr)
 {
-	/* OMAP supports only graphics source transparency color key and alpha
-	 * blending simultaneously. See TRM 15.4.2.4.2.2 Alpha Mode */
-
-	if (mgr->info.alpha_enabled && mgr->info.trans_enabled &&
-			mgr->info.trans_key_type != OMAP_DSS_COLOR_KEY_GFX_DST)
-		return -EINVAL;
+	if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER)) {
+		/*
+		 * OMAP3 supports only graphics source transparency color key
+		 * and alpha blending simultaneously. See TRM 15.4.2.4.2.2
+		 * Alpha Mode
+		 */
+		if (mgr->info.partial_alpha_enabled && mgr->info.trans_enabled
+			&& mgr->info.trans_key_type !=
+				OMAP_DSS_COLOR_KEY_GFX_DST)
+			return -EINVAL;
+	}
 
 	return 0;
 }
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 2123fb2d51cb..3db8b4c4d6ed 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -179,6 +179,7 @@ enum omap_overlay_caps {
 	OMAP_DSS_OVL_CAP_SCALE = 1 << 0,
 	OMAP_DSS_OVL_CAP_GLOBAL_ALPHA = 1 << 1,
 	OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA = 1 << 2,
+	OMAP_DSS_OVL_CAP_ZORDER = 1 << 3,
 };
 
 enum omap_overlay_manager_caps {
@@ -412,7 +413,7 @@ struct omap_overlay_manager_info {
 	u32 trans_key;
 	bool trans_enabled;
 
-	bool alpha_enabled;
+	bool partial_alpha_enabled;
 
 	bool cpr_enable;
 	struct omap_dss_cpr_coefs cpr_coefs;
-- 
cgit 1.4.1


From b8c095b4d62f90ed8da0cca7116125863b1d8bef Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Tue, 13 Sep 2011 18:20:33 +0530
Subject: OMAPDSS: DISPC: VIDEO3 pipeline support

Add support for VIDEO3 pipeline on OMAP4:
- Add VIDEO3 pipeline information in dss_features and omapdss.h
- Add VIDEO3 pipeline register coefficients in dispc.h
- Create a new overlay structure corresponding to VIDEO3.
- Make changes in dispc.c for VIDEO3

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c        | 17 ++++++++--
 drivers/video/omap2/dss/dispc.h        | 57 ++++++++++++++++++++++++++++++++++
 drivers/video/omap2/dss/dss_features.c | 18 +++++++++--
 drivers/video/omap2/dss/dss_features.h |  2 +-
 drivers/video/omap2/dss/overlay.c      |  5 +++
 include/video/omapdss.h                |  5 ++-
 6 files changed, 97 insertions(+), 7 deletions(-)

(limited to 'include/video')

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index e0639d328c5b..fa7aadfec7b8 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -751,7 +751,7 @@ static void dispc_ovl_set_pre_mult_alpha(enum omap_plane plane, bool enable)
 
 static void dispc_ovl_setup_global_alpha(enum omap_plane plane, u8 global_alpha)
 {
-	static const unsigned shifts[] = { 0, 8, 16, };
+	static const unsigned shifts[] = { 0, 8, 16, 24, };
 	int shift;
 	struct omap_overlay *ovl = omap_dss_get_overlay(plane);
 
@@ -866,6 +866,7 @@ static void dispc_ovl_set_channel_out(enum omap_plane plane,
 		break;
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
+	case OMAP_DSS_VIDEO3:
 		shift = 16;
 		break;
 	default:
@@ -903,7 +904,7 @@ static void dispc_ovl_set_channel_out(enum omap_plane plane,
 static void dispc_ovl_set_burst_size(enum omap_plane plane,
 		enum omap_burst_size burst_size)
 {
-	static const unsigned shifts[] = { 6, 14, 14, };
+	static const unsigned shifts[] = { 6, 14, 14, 14, };
 	int shift;
 
 	shift = shifts[plane];
@@ -988,7 +989,7 @@ static void dispc_ovl_set_vid_color_conv(enum omap_plane plane, bool enable)
 
 static void dispc_ovl_enable_replication(enum omap_plane plane, bool enable)
 {
-	static const unsigned shifts[] = { 5, 10, 10 };
+	static const unsigned shifts[] = { 5, 10, 10, 10 };
 	int shift;
 
 	shift = shifts[plane];
@@ -2558,6 +2559,10 @@ void dispc_dump_irqs(struct seq_file *s)
 	PIS(VID1_END_WIN);
 	PIS(VID2_FIFO_UNDERFLOW);
 	PIS(VID2_END_WIN);
+	if (dss_feat_get_num_ovls() > 3) {
+		PIS(VID3_FIFO_UNDERFLOW);
+		PIS(VID3_END_WIN);
+	}
 	PIS(SYNC_LOST);
 	PIS(SYNC_LOST_DIGIT);
 	PIS(WAKEUP);
@@ -2583,6 +2588,7 @@ void dispc_dump_regs(struct seq_file *s)
 		[OMAP_DSS_GFX]		= "GFX",
 		[OMAP_DSS_VIDEO1]	= "VID1",
 		[OMAP_DSS_VIDEO2]	= "VID2",
+		[OMAP_DSS_VIDEO3]	= "VID3",
 	};
 	const char **p_names;
 
@@ -2985,6 +2991,8 @@ static void print_irq_status(u32 status)
 	PIS(OCP_ERR);
 	PIS(VID1_FIFO_UNDERFLOW);
 	PIS(VID2_FIFO_UNDERFLOW);
+	if (dss_feat_get_num_ovls() > 3)
+		PIS(VID3_FIFO_UNDERFLOW);
 	PIS(SYNC_LOST);
 	PIS(SYNC_LOST_DIGIT);
 	if (dss_has_feature(FEAT_MGR_LCD2))
@@ -3082,6 +3090,7 @@ static void dispc_error_worker(struct work_struct *work)
 		DISPC_IRQ_GFX_FIFO_UNDERFLOW,
 		DISPC_IRQ_VID1_FIFO_UNDERFLOW,
 		DISPC_IRQ_VID2_FIFO_UNDERFLOW,
+		DISPC_IRQ_VID3_FIFO_UNDERFLOW,
 	};
 
 	static const unsigned sync_lost_bits[] = {
@@ -3257,6 +3266,8 @@ static void _omap_dispc_initialize_irq(void)
 	dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR;
 	if (dss_has_feature(FEAT_MGR_LCD2))
 		dispc.irq_error_mask |= DISPC_IRQ_SYNC_LOST2;
+	if (dss_feat_get_num_ovls() > 3)
+		dispc.irq_error_mask |= DISPC_IRQ_VID3_FIFO_UNDERFLOW;
 
 	/* there's SYNC_LOST_DIGIT waiting after enabling the DSS,
 	 * so clear it */
diff --git a/drivers/video/omap2/dss/dispc.h b/drivers/video/omap2/dss/dispc.h
index 6c9ee0a0efb3..c06efc38983e 100644
--- a/drivers/video/omap2/dss/dispc.h
+++ b/drivers/video/omap2/dss/dispc.h
@@ -291,6 +291,8 @@ static inline u16 DISPC_OVL_BASE(enum omap_plane plane)
 		return 0x00BC;
 	case OMAP_DSS_VIDEO2:
 		return 0x014C;
+	case OMAP_DSS_VIDEO3:
+		return 0x0300;
 	default:
 		BUG();
 	}
@@ -304,6 +306,8 @@ static inline u16 DISPC_BA0_OFFSET(enum omap_plane plane)
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
 		return 0x0000;
+	case OMAP_DSS_VIDEO3:
+		return 0x0008;
 	default:
 		BUG();
 	}
@@ -316,6 +320,8 @@ static inline u16 DISPC_BA1_OFFSET(enum omap_plane plane)
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
 		return 0x0004;
+	case OMAP_DSS_VIDEO3:
+		return 0x000C;
 	default:
 		BUG();
 	}
@@ -330,6 +336,8 @@ static inline u16 DISPC_BA0_UV_OFFSET(enum omap_plane plane)
 		return 0x0544;
 	case OMAP_DSS_VIDEO2:
 		return 0x04BC;
+	case OMAP_DSS_VIDEO3:
+		return 0x0310;
 	default:
 		BUG();
 	}
@@ -344,6 +352,8 @@ static inline u16 DISPC_BA1_UV_OFFSET(enum omap_plane plane)
 		return 0x0548;
 	case OMAP_DSS_VIDEO2:
 		return 0x04C0;
+	case OMAP_DSS_VIDEO3:
+		return 0x0314;
 	default:
 		BUG();
 	}
@@ -356,6 +366,8 @@ static inline u16 DISPC_POS_OFFSET(enum omap_plane plane)
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
 		return 0x0008;
+	case OMAP_DSS_VIDEO3:
+		return 0x009C;
 	default:
 		BUG();
 	}
@@ -368,6 +380,8 @@ static inline u16 DISPC_SIZE_OFFSET(enum omap_plane plane)
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
 		return 0x000C;
+	case OMAP_DSS_VIDEO3:
+		return 0x00A8;
 	default:
 		BUG();
 	}
@@ -381,6 +395,8 @@ static inline u16 DISPC_ATTR_OFFSET(enum omap_plane plane)
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
 		return 0x0010;
+	case OMAP_DSS_VIDEO3:
+		return 0x0070;
 	default:
 		BUG();
 	}
@@ -395,6 +411,8 @@ static inline u16 DISPC_ATTR2_OFFSET(enum omap_plane plane)
 		return 0x0568;
 	case OMAP_DSS_VIDEO2:
 		return 0x04DC;
+	case OMAP_DSS_VIDEO3:
+		return 0x032C;
 	default:
 		BUG();
 	}
@@ -408,6 +426,8 @@ static inline u16 DISPC_FIFO_THRESH_OFFSET(enum omap_plane plane)
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
 		return 0x0014;
+	case OMAP_DSS_VIDEO3:
+		return 0x008C;
 	default:
 		BUG();
 	}
@@ -421,6 +441,8 @@ static inline u16 DISPC_FIFO_SIZE_STATUS_OFFSET(enum omap_plane plane)
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
 		return 0x0018;
+	case OMAP_DSS_VIDEO3:
+		return 0x0088;
 	default:
 		BUG();
 	}
@@ -434,6 +456,8 @@ static inline u16 DISPC_ROW_INC_OFFSET(enum omap_plane plane)
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
 		return 0x001C;
+	case OMAP_DSS_VIDEO3:
+		return 0x00A4;
 	default:
 		BUG();
 	}
@@ -447,6 +471,8 @@ static inline u16 DISPC_PIX_INC_OFFSET(enum omap_plane plane)
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
 		return 0x0020;
+	case OMAP_DSS_VIDEO3:
+		return 0x0098;
 	default:
 		BUG();
 	}
@@ -459,6 +485,7 @@ static inline u16 DISPC_WINDOW_SKIP_OFFSET(enum omap_plane plane)
 		return 0x0034;
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
+	case OMAP_DSS_VIDEO3:
 		BUG();
 	default:
 		BUG();
@@ -472,6 +499,7 @@ static inline u16 DISPC_TABLE_BA_OFFSET(enum omap_plane plane)
 		return 0x0038;
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
+	case OMAP_DSS_VIDEO3:
 		BUG();
 	default:
 		BUG();
@@ -486,6 +514,8 @@ static inline u16 DISPC_FIR_OFFSET(enum omap_plane plane)
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
 		return 0x0024;
+	case OMAP_DSS_VIDEO3:
+		return 0x0090;
 	default:
 		BUG();
 	}
@@ -500,6 +530,8 @@ static inline u16 DISPC_FIR2_OFFSET(enum omap_plane plane)
 		return 0x0580;
 	case OMAP_DSS_VIDEO2:
 		return 0x055C;
+	case OMAP_DSS_VIDEO3:
+		return 0x0424;
 	default:
 		BUG();
 	}
@@ -513,6 +545,8 @@ static inline u16 DISPC_PIC_SIZE_OFFSET(enum omap_plane plane)
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
 		return 0x0028;
+	case OMAP_DSS_VIDEO3:
+		return 0x0094;
 	default:
 		BUG();
 	}
@@ -527,6 +561,8 @@ static inline u16 DISPC_ACCU0_OFFSET(enum omap_plane plane)
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
 		return 0x002C;
+	case OMAP_DSS_VIDEO3:
+		return 0x0000;
 	default:
 		BUG();
 	}
@@ -541,6 +577,8 @@ static inline u16 DISPC_ACCU2_0_OFFSET(enum omap_plane plane)
 		return 0x0584;
 	case OMAP_DSS_VIDEO2:
 		return 0x0560;
+	case OMAP_DSS_VIDEO3:
+		return 0x0428;
 	default:
 		BUG();
 	}
@@ -554,6 +592,8 @@ static inline u16 DISPC_ACCU1_OFFSET(enum omap_plane plane)
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
 		return 0x0030;
+	case OMAP_DSS_VIDEO3:
+		return 0x0004;
 	default:
 		BUG();
 	}
@@ -568,6 +608,8 @@ static inline u16 DISPC_ACCU2_1_OFFSET(enum omap_plane plane)
 		return 0x0588;
 	case OMAP_DSS_VIDEO2:
 		return 0x0564;
+	case OMAP_DSS_VIDEO3:
+		return 0x042C;
 	default:
 		BUG();
 	}
@@ -582,6 +624,8 @@ static inline u16 DISPC_FIR_COEF_H_OFFSET(enum omap_plane plane, u16 i)
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
 		return 0x0034 + i * 0x8;
+	case OMAP_DSS_VIDEO3:
+		return 0x0010 + i * 0x8;
 	default:
 		BUG();
 	}
@@ -597,6 +641,8 @@ static inline u16 DISPC_FIR_COEF_H2_OFFSET(enum omap_plane plane, u16 i)
 		return 0x058C + i * 0x8;
 	case OMAP_DSS_VIDEO2:
 		return 0x0568 + i * 0x8;
+	case OMAP_DSS_VIDEO3:
+		return 0x0430 + i * 0x8;
 	default:
 		BUG();
 	}
@@ -611,6 +657,8 @@ static inline u16 DISPC_FIR_COEF_HV_OFFSET(enum omap_plane plane, u16 i)
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
 		return 0x0038 + i * 0x8;
+	case OMAP_DSS_VIDEO3:
+		return 0x0014 + i * 0x8;
 	default:
 		BUG();
 	}
@@ -626,6 +674,8 @@ static inline u16 DISPC_FIR_COEF_HV2_OFFSET(enum omap_plane plane, u16 i)
 		return 0x0590 + i * 8;
 	case OMAP_DSS_VIDEO2:
 		return 0x056C + i * 0x8;
+	case OMAP_DSS_VIDEO3:
+		return 0x0434 + i * 0x8;
 	default:
 		BUG();
 	}
@@ -639,6 +689,7 @@ static inline u16 DISPC_CONV_COEF_OFFSET(enum omap_plane plane, u16 i)
 		BUG();
 	case OMAP_DSS_VIDEO1:
 	case OMAP_DSS_VIDEO2:
+	case OMAP_DSS_VIDEO3:
 		return 0x0074 + i * 0x4;
 	default:
 		BUG();
@@ -655,6 +706,8 @@ static inline u16 DISPC_FIR_COEF_V_OFFSET(enum omap_plane plane, u16 i)
 		return 0x0124 + i * 0x4;
 	case OMAP_DSS_VIDEO2:
 		return 0x00B4 + i * 0x4;
+	case OMAP_DSS_VIDEO3:
+		return 0x0050 + i * 0x4;
 	default:
 		BUG();
 	}
@@ -670,6 +723,8 @@ static inline u16 DISPC_FIR_COEF_V2_OFFSET(enum omap_plane plane, u16 i)
 		return 0x05CC + i * 0x4;
 	case OMAP_DSS_VIDEO2:
 		return 0x05A8 + i * 0x4;
+	case OMAP_DSS_VIDEO3:
+		return 0x0470 + i * 0x4;
 	default:
 		BUG();
 	}
@@ -684,6 +739,8 @@ static inline u16 DISPC_PRELOAD_OFFSET(enum omap_plane plane)
 		return 0x0174;
 	case OMAP_DSS_VIDEO2:
 		return 0x00E8;
+	case OMAP_DSS_VIDEO3:
+		return 0x00A0;
 	default:
 		BUG();
 	}
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index eb08b003ba49..b402699168a5 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -210,6 +210,16 @@ static const enum omap_color_mode omap4_dss_supported_color_modes[] = {
 	OMAP_DSS_COLOR_ARGB16 | OMAP_DSS_COLOR_XRGB16_1555 |
 	OMAP_DSS_COLOR_ARGB32 | OMAP_DSS_COLOR_RGBX16 |
 	OMAP_DSS_COLOR_RGBX32,
+
+	/* OMAP_DSS_VIDEO3 */
+	OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB12U |
+	OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_ARGB16_1555 |
+	OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_NV12 |
+	OMAP_DSS_COLOR_RGBA16 | OMAP_DSS_COLOR_RGB24U |
+	OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_UYVY |
+	OMAP_DSS_COLOR_ARGB16 | OMAP_DSS_COLOR_XRGB16_1555 |
+	OMAP_DSS_COLOR_ARGB32 | OMAP_DSS_COLOR_RGBX16 |
+	OMAP_DSS_COLOR_RGBX32,
 };
 
 static const enum omap_overlay_caps omap2_dss_overlay_caps[] = {
@@ -258,6 +268,10 @@ static const enum omap_overlay_caps omap4_dss_overlay_caps[] = {
 	/* OMAP_DSS_VIDEO2 */
 	OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_GLOBAL_ALPHA |
 		OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA | OMAP_DSS_OVL_CAP_ZORDER,
+
+	/* OMAP_DSS_VIDEO3 */
+	OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_GLOBAL_ALPHA |
+		OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA | OMAP_DSS_OVL_CAP_ZORDER,
 };
 
 static const char * const omap2_dss_clk_source_names[] = {
@@ -401,7 +415,7 @@ static const struct omap_dss_features omap4430_es1_0_dss_features  = {
 		FEAT_ALPHA_FREE_ZORDER,
 
 	.num_mgrs = 3,
-	.num_ovls = 3,
+	.num_ovls = 4,
 	.supported_displays = omap4_dss_supported_displays,
 	.supported_color_modes = omap4_dss_supported_color_modes,
 	.overlay_caps = omap4_dss_overlay_caps,
@@ -425,7 +439,7 @@ static const struct omap_dss_features omap4_dss_features = {
 		FEAT_PRELOAD | FEAT_FIR_COEF_V | FEAT_ALPHA_FREE_ZORDER,
 
 	.num_mgrs = 3,
-	.num_ovls = 3,
+	.num_ovls = 4,
 	.supported_displays = omap4_dss_supported_displays,
 	.supported_color_modes = omap4_dss_supported_color_modes,
 	.overlay_caps = omap4_dss_overlay_caps,
diff --git a/drivers/video/omap2/dss/dss_features.h b/drivers/video/omap2/dss/dss_features.h
index e81271a0e005..6a6c05dd45ce 100644
--- a/drivers/video/omap2/dss/dss_features.h
+++ b/drivers/video/omap2/dss/dss_features.h
@@ -25,7 +25,7 @@
 #endif
 
 #define MAX_DSS_MANAGERS	3
-#define MAX_DSS_OVERLAYS	3
+#define MAX_DSS_OVERLAYS	4
 #define MAX_DSS_LCD_MANAGERS	2
 #define MAX_NUM_DSI		2
 
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index afb75839a328..11d21e3347ad 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -615,6 +615,11 @@ void dss_init_overlays(struct platform_device *pdev)
 			ovl->id = OMAP_DSS_VIDEO2;
 			ovl->info.global_alpha = 255;
 			break;
+		case 3:
+			ovl->name = "vid3";
+			ovl->id = OMAP_DSS_VIDEO3;
+			ovl->info.global_alpha = 255;
+			break;
 		}
 
 		ovl->set_manager = &omap_dss_set_manager;
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 3db8b4c4d6ed..27d9cce25918 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -41,6 +41,8 @@
 #define DISPC_IRQ_WAKEUP		(1 << 16)
 #define DISPC_IRQ_SYNC_LOST2		(1 << 17)
 #define DISPC_IRQ_VSYNC2		(1 << 18)
+#define DISPC_IRQ_VID3_END_WIN		(1 << 19)
+#define DISPC_IRQ_VID3_FIFO_UNDERFLOW	(1 << 20)
 #define DISPC_IRQ_ACBIAS_COUNT_STAT2	(1 << 21)
 #define DISPC_IRQ_FRAMEDONE2		(1 << 22)
 #define DISPC_IRQ_FRAMEDONEWB		(1 << 23)
@@ -63,7 +65,8 @@ enum omap_display_type {
 enum omap_plane {
 	OMAP_DSS_GFX	= 0,
 	OMAP_DSS_VIDEO1	= 1,
-	OMAP_DSS_VIDEO2	= 2
+	OMAP_DSS_VIDEO2	= 2,
+	OMAP_DSS_VIDEO3	= 3,
 };
 
 enum omap_channel {
-- 
cgit 1.4.1


From 54128701ecccbeb6f740030e0cc5f8e5701fe8ee Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Thu, 8 Sep 2011 11:29:17 +0530
Subject: OMAPDSS: DISPC: zorder support for DSS overlays

Add zorder support on OMAP4, this feature allows deciding the visibility order
of the overlays based on the zorder value provided as an overlay info parameter
or a sysfs attribute of the overlay object.

Use the overlay cap OMAP_DSS_OVL_CAP_ZORDER to determine whether zorder is
supported for the overlay or not. Use dss feature FEAT_ALPHA_FREE_ZORDER
if the caps are not available.

Ensure that all overlays that are enabled and connected to the same manager
have different zorders. Swapping zorders of 2 enabled overlays currently
requires disabling one of the overlays.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c   | 24 +++++++++++++
 drivers/video/omap2/dss/overlay.c | 72 +++++++++++++++++++++++++++++++++++++++
 include/video/omapdss.h           |  1 +
 3 files changed, 97 insertions(+)

(limited to 'include/video')

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index fa7aadfec7b8..6892cfd2e3b7 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -739,6 +739,27 @@ static void dispc_ovl_set_vid_size(enum omap_plane plane, int width, int height)
 	dispc_write_reg(DISPC_OVL_SIZE(plane), val);
 }
 
+static void dispc_ovl_set_zorder(enum omap_plane plane, u8 zorder)
+{
+	struct omap_overlay *ovl = omap_dss_get_overlay(plane);
+
+	if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0)
+		return;
+
+	REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), zorder, 27, 26);
+}
+
+static void dispc_ovl_enable_zorder_planes(void)
+{
+	int i;
+
+	if (!dss_has_feature(FEAT_ALPHA_FREE_ZORDER))
+		return;
+
+	for (i = 0; i < dss_feat_get_num_ovls(); i++)
+		REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(i), 1, 25, 25);
+}
+
 static void dispc_ovl_set_pre_mult_alpha(enum omap_plane plane, bool enable)
 {
 	struct omap_overlay *ovl = omap_dss_get_overlay(plane);
@@ -1866,6 +1887,7 @@ int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
 	dispc_ovl_set_rotation_attrs(plane, oi->rotation, oi->mirror,
 			oi->color_mode);
 
+	dispc_ovl_set_zorder(plane, oi->zorder);
 	dispc_ovl_set_pre_mult_alpha(plane, oi->pre_mult_alpha);
 	dispc_ovl_setup_global_alpha(plane, oi->global_alpha);
 
@@ -3317,6 +3339,8 @@ static void _omap_dispc_initial_config(void)
 	dispc_read_plane_fifo_sizes();
 
 	dispc_configure_burst_sizes();
+
+	dispc_ovl_enable_zorder_planes();
 }
 
 /* DISPC HW IP initialisation */
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index 11d21e3347ad..ab8e40e48759 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -311,6 +311,42 @@ static ssize_t overlay_pre_mult_alpha_store(struct omap_overlay *ovl,
 	return size;
 }
 
+static ssize_t overlay_zorder_show(struct omap_overlay *ovl, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.zorder);
+}
+
+static ssize_t overlay_zorder_store(struct omap_overlay *ovl,
+		const char *buf, size_t size)
+{
+	int r;
+	u8 zorder;
+	struct omap_overlay_info info;
+
+	if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0)
+		return -ENODEV;
+
+	r = kstrtou8(buf, 0, &zorder);
+	if (r)
+		return r;
+
+	ovl->get_overlay_info(ovl, &info);
+
+	info.zorder = zorder;
+
+	r = ovl->set_overlay_info(ovl, &info);
+	if (r)
+		return r;
+
+	if (ovl->manager) {
+		r = ovl->manager->apply(ovl->manager);
+		if (r)
+			return r;
+	}
+
+	return size;
+}
+
 struct overlay_attribute {
 	struct attribute attr;
 	ssize_t (*show)(struct omap_overlay *, char *);
@@ -337,6 +373,8 @@ static OVERLAY_ATTR(global_alpha, S_IRUGO|S_IWUSR,
 static OVERLAY_ATTR(pre_mult_alpha, S_IRUGO|S_IWUSR,
 		overlay_pre_mult_alpha_show,
 		overlay_pre_mult_alpha_store);
+static OVERLAY_ATTR(zorder, S_IRUGO|S_IWUSR,
+		overlay_zorder_show, overlay_zorder_store);
 
 static struct attribute *overlay_sysfs_attrs[] = {
 	&overlay_attr_name.attr,
@@ -348,6 +386,7 @@ static struct attribute *overlay_sysfs_attrs[] = {
 	&overlay_attr_enabled.attr,
 	&overlay_attr_global_alpha.attr,
 	&overlay_attr_pre_mult_alpha.attr,
+	&overlay_attr_zorder.attr,
 	NULL
 };
 
@@ -397,6 +436,7 @@ int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev)
 	struct omap_overlay_info *info;
 	u16 outw, outh;
 	u16 dw, dh;
+	int i;
 
 	if (!dssdev)
 		return 0;
@@ -452,6 +492,31 @@ int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev)
 		return -EINVAL;
 	}
 
+	if (ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) {
+		if (info->zorder < 0 || info->zorder > 3) {
+			DSSERR("zorder out of range: %d\n",
+				info->zorder);
+			return -EINVAL;
+		}
+		/*
+		 * Check that zorder doesn't match with zorder of any other
+		 * overlay which is enabled and is also connected to the same
+		 * manager
+		 */
+		for (i = 0; i < omap_dss_get_num_overlays(); i++) {
+			struct omap_overlay *tmp_ovl = omap_dss_get_overlay(i);
+
+			if (tmp_ovl->id != ovl->id &&
+					tmp_ovl->manager == ovl->manager &&
+					tmp_ovl->info.enabled == true &&
+					tmp_ovl->info.zorder == info->zorder) {
+				DSSERR("%s and %s have same zorder: %d\n",
+					ovl->name, tmp_ovl->name, info->zorder);
+				return -EINVAL;
+			}
+		}
+	}
+
 	return 0;
 }
 
@@ -604,21 +669,28 @@ void dss_init_overlays(struct platform_device *pdev)
 			ovl->name = "gfx";
 			ovl->id = OMAP_DSS_GFX;
 			ovl->info.global_alpha = 255;
+			ovl->info.zorder = 0;
 			break;
 		case 1:
 			ovl->name = "vid1";
 			ovl->id = OMAP_DSS_VIDEO1;
 			ovl->info.global_alpha = 255;
+			ovl->info.zorder =
+				dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 3 : 0;
 			break;
 		case 2:
 			ovl->name = "vid2";
 			ovl->id = OMAP_DSS_VIDEO2;
 			ovl->info.global_alpha = 255;
+			ovl->info.zorder =
+				dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 2 : 0;
 			break;
 		case 3:
 			ovl->name = "vid3";
 			ovl->id = OMAP_DSS_VIDEO3;
 			ovl->info.global_alpha = 255;
+			ovl->info.zorder =
+				dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 1 : 0;
 			break;
 		}
 
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 27d9cce25918..b66ebb2032c6 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -377,6 +377,7 @@ struct omap_overlay_info {
 	u16 out_height;	/* if 0, out_height == height */
 	u8 global_alpha;
 	u8 pre_mult_alpha;
+	u8 zorder;
 };
 
 struct omap_overlay {
-- 
cgit 1.4.1