drm: zte: remove obsolete DRM Support for ZTE SoCs

Commit 89d4f98ae90d ("ARM: remove zte zx platform") removes the config
ARCH_ZX. So, since then, the DRM Support for ZTE SoCs (config DRM_ZTE)
depends on this removed config ARCH_ZX and cannot be selected.

Fortunately, ./scripts/checkkconfigsymbols.py detects this and warns:

ARCH_ZX
Referencing files: drivers/gpu/drm/zte/Kconfig

So, remove this obsolete DRM support.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210819112253.16484-5-lukas.bulwahn@gmail.com

1 files changed, 0 insertions, 537 deletions

diff --git a/drivers/gpu/drm/zte/zx_plane.c b/drivers/gpu/drm/zte/zx_plane.c
deleted file mode 100644
index 93bcca428e35..000000000000
--- a/drivers/gpu/drm/zte/zx_plane.c
+++ /dev/null
@@ -1,537 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright 2016 Linaro Ltd.
- * Copyright 2016 ZTE Corporation.
- */
-
-#include <drm/drm_atomic.h>
-#include <drm/drm_atomic_helper.h>
-#include <drm/drm_fb_cma_helper.h>
-#include <drm/drm_fourcc.h>
-#include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_modeset_helper_vtables.h>
-#include <drm/drm_plane_helper.h>
-
-#include "zx_common_regs.h"
-#include "zx_drm_drv.h"
-#include "zx_plane.h"
-#include "zx_plane_regs.h"
-#include "zx_vou.h"
-
-static const uint32_t gl_formats[] = {
-	DRM_FORMAT_ARGB8888,
-	DRM_FORMAT_XRGB8888,
-	DRM_FORMAT_RGB888,
-	DRM_FORMAT_RGB565,
-	DRM_FORMAT_ARGB1555,
-	DRM_FORMAT_ARGB4444,
-};
-
-static const uint32_t vl_formats[] = {
-	DRM_FORMAT_NV12,	/* Semi-planar YUV420 */
-	DRM_FORMAT_YUV420,	/* Planar YUV420 */
-	DRM_FORMAT_YUYV,	/* Packed YUV422 */
-	DRM_FORMAT_YVYU,
-	DRM_FORMAT_UYVY,
-	DRM_FORMAT_VYUY,
-	DRM_FORMAT_YUV444,	/* YUV444 8bit */
-	/*
-	 * TODO: add formats below that HW supports:
-	 *  - YUV420 P010
-	 *  - YUV420 Hantro
-	 *  - YUV444 10bit
-	 */
-};
-
-#define FRAC_16_16(mult, div)    (((mult) << 16) / (div))
-
-static int zx_vl_plane_atomic_check(struct drm_plane *plane,
-				    struct drm_atomic_state *state)
-{
-	struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state,
-									     plane);
-	struct drm_framebuffer *fb = plane_state->fb;
-	struct drm_crtc *crtc = plane_state->crtc;
-	struct drm_crtc_state *crtc_state;
-	int min_scale = FRAC_16_16(1, 8);
-	int max_scale = FRAC_16_16(8, 1);
-
-	if (!crtc || WARN_ON(!fb))
-		return 0;
-
-	crtc_state = drm_atomic_get_existing_crtc_state(state,
-							crtc);
-	if (WARN_ON(!crtc_state))
-		return -EINVAL;
-
-	/* nothing to check when disabling or disabled */
-	if (!crtc_state->enable)
-		return 0;
-
-	/* plane must be enabled */
-	if (!plane_state->crtc)
-		return -EINVAL;
-
-	return drm_atomic_helper_check_plane_state(plane_state, crtc_state,
-						   min_scale, max_scale,
-						   true, true);
-}
-
-static int zx_vl_get_fmt(uint32_t format)
-{
-	switch (format) {
-	case DRM_FORMAT_NV12:
-		return VL_FMT_YUV420;
-	case DRM_FORMAT_YUV420:
-		return VL_YUV420_PLANAR | VL_FMT_YUV420;
-	case DRM_FORMAT_YUYV:
-		return VL_YUV422_YUYV | VL_FMT_YUV422;
-	case DRM_FORMAT_YVYU:
-		return VL_YUV422_YVYU | VL_FMT_YUV422;
-	case DRM_FORMAT_UYVY:
-		return VL_YUV422_UYVY | VL_FMT_YUV422;
-	case DRM_FORMAT_VYUY:
-		return VL_YUV422_VYUY | VL_FMT_YUV422;
-	case DRM_FORMAT_YUV444:
-		return VL_FMT_YUV444_8BIT;
-	default:
-		WARN_ONCE(1, "invalid pixel format %d\n", format);
-		return -EINVAL;
-	}
-}
-
-static inline void zx_vl_set_update(struct zx_plane *zplane)
-{
-	void __iomem *layer = zplane->layer;
-
-	zx_writel_mask(layer + VL_CTRL0, VL_UPDATE, VL_UPDATE);
-}
-
-static inline void zx_vl_rsz_set_update(struct zx_plane *zplane)
-{
-	zx_writel(zplane->rsz + RSZ_VL_ENABLE_CFG, 1);
-}
-
-static int zx_vl_rsz_get_fmt(uint32_t format)
-{
-	switch (format) {
-	case DRM_FORMAT_NV12:
-	case DRM_FORMAT_YUV420:
-		return RSZ_VL_FMT_YCBCR420;
-	case DRM_FORMAT_YUYV:
-	case DRM_FORMAT_YVYU:
-	case DRM_FORMAT_UYVY:
-	case DRM_FORMAT_VYUY:
-		return RSZ_VL_FMT_YCBCR422;
-	case DRM_FORMAT_YUV444:
-		return RSZ_VL_FMT_YCBCR444;
-	default:
-		WARN_ONCE(1, "invalid pixel format %d\n", format);
-		return -EINVAL;
-	}
-}
-
-static inline u32 rsz_step_value(u32 src, u32 dst)
-{
-	u32 val = 0;
-
-	if (src == dst)
-		val = 0;
-	else if (src < dst)
-		val = RSZ_PARA_STEP((src << 16) / dst);
-	else if (src > dst)
-		val = RSZ_DATA_STEP(src / dst) |
-		      RSZ_PARA_STEP(((src << 16) / dst) & 0xffff);
-
-	return val;
-}
-
-static void zx_vl_rsz_setup(struct zx_plane *zplane, uint32_t format,
-			    u32 src_w, u32 src_h, u32 dst_w, u32 dst_h)
-{
-	void __iomem *rsz = zplane->rsz;
-	u32 src_chroma_w = src_w;
-	u32 src_chroma_h = src_h;
-	int fmt;
-
-	/* Set up source and destination resolution */
-	zx_writel(rsz + RSZ_SRC_CFG, RSZ_VER(src_h - 1) | RSZ_HOR(src_w - 1));
-	zx_writel(rsz + RSZ_DEST_CFG, RSZ_VER(dst_h - 1) | RSZ_HOR(dst_w - 1));
-
-	/* Configure data format for VL RSZ */
-	fmt = zx_vl_rsz_get_fmt(format);
-	if (fmt >= 0)
-		zx_writel_mask(rsz + RSZ_VL_CTRL_CFG, RSZ_VL_FMT_MASK, fmt);
-
-	/* Calculate Chroma height and width */
-	if (fmt == RSZ_VL_FMT_YCBCR420) {
-		src_chroma_w = src_w >> 1;
-		src_chroma_h = src_h >> 1;
-	} else if (fmt == RSZ_VL_FMT_YCBCR422) {
-		src_chroma_w = src_w >> 1;
-	}
-
-	/* Set up Luma and Chroma step registers */
-	zx_writel(rsz + RSZ_VL_LUMA_HOR, rsz_step_value(src_w, dst_w));
-	zx_writel(rsz + RSZ_VL_LUMA_VER, rsz_step_value(src_h, dst_h));
-	zx_writel(rsz + RSZ_VL_CHROMA_HOR, rsz_step_value(src_chroma_w, dst_w));
-	zx_writel(rsz + RSZ_VL_CHROMA_VER, rsz_step_value(src_chroma_h, dst_h));
-
-	zx_vl_rsz_set_update(zplane);
-}
-
-static void zx_vl_plane_atomic_update(struct drm_plane *plane,
-				      struct drm_atomic_state *state)
-{
-	struct zx_plane *zplane = to_zx_plane(plane);
-	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
-									   plane);
-	struct drm_framebuffer *fb = new_state->fb;
-	struct drm_rect *src = &new_state->src;
-	struct drm_rect *dst = &new_state->dst;
-	struct drm_gem_cma_object *cma_obj;
-	void __iomem *layer = zplane->layer;
-	void __iomem *hbsc = zplane->hbsc;
-	void __iomem *paddr_reg;
-	dma_addr_t paddr;
-	u32 src_x, src_y, src_w, src_h;
-	u32 dst_x, dst_y, dst_w, dst_h;
-	uint32_t format;
-	int fmt;
-	int i;
-
-	if (!fb)
-		return;
-
-	format = fb->format->format;
-
-	src_x = src->x1 >> 16;
-	src_y = src->y1 >> 16;
-	src_w = drm_rect_width(src) >> 16;
-	src_h = drm_rect_height(src) >> 16;
-
-	dst_x = dst->x1;
-	dst_y = dst->y1;
-	dst_w = drm_rect_width(dst);
-	dst_h = drm_rect_height(dst);
-
-	/* Set up data address registers for Y, Cb and Cr planes */
-	paddr_reg = layer + VL_Y;
-	for (i = 0; i < fb->format->num_planes; i++) {
-		cma_obj = drm_fb_cma_get_gem_obj(fb, i);
-		paddr = cma_obj->paddr + fb->offsets[i];
-		paddr += src_y * fb->pitches[i];
-		paddr += src_x * fb->format->cpp[i];
-		zx_writel(paddr_reg, paddr);
-		paddr_reg += 4;
-	}
-
-	/* Set up source height/width register */
-	zx_writel(layer + VL_SRC_SIZE, GL_SRC_W(src_w) | GL_SRC_H(src_h));
-
-	/* Set up start position register */
-	zx_writel(layer + VL_POS_START, GL_POS_X(dst_x) | GL_POS_Y(dst_y));
-
-	/* Set up end position register */
-	zx_writel(layer + VL_POS_END,
-		  GL_POS_X(dst_x + dst_w) | GL_POS_Y(dst_y + dst_h));
-
-	/* Strides of Cb and Cr planes should be identical */
-	zx_writel(layer + VL_STRIDE, LUMA_STRIDE(fb->pitches[0]) |
-		  CHROMA_STRIDE(fb->pitches[1]));
-
-	/* Set up video layer data format */
-	fmt = zx_vl_get_fmt(format);
-	if (fmt >= 0)
-		zx_writel(layer + VL_CTRL1, fmt);
-
-	/* Always use scaler since it exists (set for not bypass) */
-	zx_writel_mask(layer + VL_CTRL2, VL_SCALER_BYPASS_MODE,
-		       VL_SCALER_BYPASS_MODE);
-
-	zx_vl_rsz_setup(zplane, format, src_w, src_h, dst_w, dst_h);
-
-	/* Enable HBSC block */
-	zx_writel_mask(hbsc + HBSC_CTRL0, HBSC_CTRL_EN, HBSC_CTRL_EN);
-
-	zx_vou_layer_enable(plane);
-
-	zx_vl_set_update(zplane);
-}
-
-static void zx_plane_atomic_disable(struct drm_plane *plane,
-				    struct drm_atomic_state *state)
-{
-	struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
-									   plane);
-	struct zx_plane *zplane = to_zx_plane(plane);
-	void __iomem *hbsc = zplane->hbsc;
-
-	zx_vou_layer_disable(plane, old_state);
-
-	/* Disable HBSC block */
-	zx_writel_mask(hbsc + HBSC_CTRL0, HBSC_CTRL_EN, 0);
-}
-
-static const struct drm_plane_helper_funcs zx_vl_plane_helper_funcs = {
-	.atomic_check = zx_vl_plane_atomic_check,
-	.atomic_update = zx_vl_plane_atomic_update,
-	.atomic_disable = zx_plane_atomic_disable,
-};
-
-static int zx_gl_plane_atomic_check(struct drm_plane *plane,
-				    struct drm_atomic_state *state)
-{
-	struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state,
-									     plane);
-	struct drm_framebuffer *fb = plane_state->fb;
-	struct drm_crtc *crtc = plane_state->crtc;
-	struct drm_crtc_state *crtc_state;
-
-	if (!crtc || WARN_ON(!fb))
-		return 0;
-
-	crtc_state = drm_atomic_get_existing_crtc_state(state,
-							crtc);
-	if (WARN_ON(!crtc_state))
-		return -EINVAL;
-
-	/* nothing to check when disabling or disabled */
-	if (!crtc_state->enable)
-		return 0;
-
-	/* plane must be enabled */
-	if (!plane_state->crtc)
-		return -EINVAL;
-
-	return drm_atomic_helper_check_plane_state(plane_state, crtc_state,
-						   DRM_PLANE_HELPER_NO_SCALING,
-						   DRM_PLANE_HELPER_NO_SCALING,
-						   false, true);
-}
-
-static int zx_gl_get_fmt(uint32_t format)
-{
-	switch (format) {
-	case DRM_FORMAT_ARGB8888:
-	case DRM_FORMAT_XRGB8888:
-		return GL_FMT_ARGB8888;
-	case DRM_FORMAT_RGB888:
-		return GL_FMT_RGB888;
-	case DRM_FORMAT_RGB565:
-		return GL_FMT_RGB565;
-	case DRM_FORMAT_ARGB1555:
-		return GL_FMT_ARGB1555;
-	case DRM_FORMAT_ARGB4444:
-		return GL_FMT_ARGB4444;
-	default:
-		WARN_ONCE(1, "invalid pixel format %d\n", format);
-		return -EINVAL;
-	}
-}
-
-static inline void zx_gl_set_update(struct zx_plane *zplane)
-{
-	void __iomem *layer = zplane->layer;
-
-	zx_writel_mask(layer + GL_CTRL0, GL_UPDATE, GL_UPDATE);
-}
-
-static inline void zx_gl_rsz_set_update(struct zx_plane *zplane)
-{
-	zx_writel(zplane->rsz + RSZ_ENABLE_CFG, 1);
-}
-
-static void zx_gl_rsz_setup(struct zx_plane *zplane, u32 src_w, u32 src_h,
-			    u32 dst_w, u32 dst_h)
-{
-	void __iomem *rsz = zplane->rsz;
-
-	zx_writel(rsz + RSZ_SRC_CFG, RSZ_VER(src_h - 1) | RSZ_HOR(src_w - 1));
-	zx_writel(rsz + RSZ_DEST_CFG, RSZ_VER(dst_h - 1) | RSZ_HOR(dst_w - 1));
-
-	zx_gl_rsz_set_update(zplane);
-}
-
-static void zx_gl_plane_atomic_update(struct drm_plane *plane,
-				      struct drm_atomic_state *state)
-{
-	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
-									   plane);
-	struct zx_plane *zplane = to_zx_plane(plane);
-	struct drm_framebuffer *fb = new_state->fb;
-	struct drm_gem_cma_object *cma_obj;
-	void __iomem *layer = zplane->layer;
-	void __iomem *csc = zplane->csc;
-	void __iomem *hbsc = zplane->hbsc;
-	u32 src_x, src_y, src_w, src_h;
-	u32 dst_x, dst_y, dst_w, dst_h;
-	unsigned int bpp;
-	uint32_t format;
-	dma_addr_t paddr;
-	u32 stride;
-	int fmt;
-
-	if (!fb)
-		return;
-
-	format = fb->format->format;
-	stride = fb->pitches[0];
-
-	src_x = new_state->src_x >> 16;
-	src_y = new_state->src_y >> 16;
-	src_w = new_state->src_w >> 16;
-	src_h = new_state->src_h >> 16;
-
-	dst_x = new_state->crtc_x;
-	dst_y = new_state->crtc_y;
-	dst_w = new_state->crtc_w;
-	dst_h = new_state->crtc_h;
-
-	bpp = fb->format->cpp[0];
-
-	cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
-	paddr = cma_obj->paddr + fb->offsets[0];
-	paddr += src_y * stride + src_x * bpp / 8;
-	zx_writel(layer + GL_ADDR, paddr);
-
-	/* Set up source height/width register */
-	zx_writel(layer + GL_SRC_SIZE, GL_SRC_W(src_w) | GL_SRC_H(src_h));
-
-	/* Set up start position register */
-	zx_writel(layer + GL_POS_START, GL_POS_X(dst_x) | GL_POS_Y(dst_y));
-
-	/* Set up end position register */
-	zx_writel(layer + GL_POS_END,
-		  GL_POS_X(dst_x + dst_w) | GL_POS_Y(dst_y + dst_h));
-
-	/* Set up stride register */
-	zx_writel(layer + GL_STRIDE, stride & 0xffff);
-
-	/* Set up graphic layer data format */
-	fmt = zx_gl_get_fmt(format);
-	if (fmt >= 0)
-		zx_writel_mask(layer + GL_CTRL1, GL_DATA_FMT_MASK,
-			       fmt << GL_DATA_FMT_SHIFT);
-
-	/* Initialize global alpha with a sane value */
-	zx_writel_mask(layer + GL_CTRL2, GL_GLOBAL_ALPHA_MASK,
-		       0xff << GL_GLOBAL_ALPHA_SHIFT);
-
-	/* Setup CSC for the GL */
-	if (dst_h > 720)
-		zx_writel_mask(csc + CSC_CTRL0, CSC_COV_MODE_MASK,
-			       CSC_BT709_IMAGE_RGB2YCBCR << CSC_COV_MODE_SHIFT);
-	else
-		zx_writel_mask(csc + CSC_CTRL0, CSC_COV_MODE_MASK,
-			       CSC_BT601_IMAGE_RGB2YCBCR << CSC_COV_MODE_SHIFT);
-	zx_writel_mask(csc + CSC_CTRL0, CSC_WORK_ENABLE, CSC_WORK_ENABLE);
-
-	/* Always use scaler since it exists (set for not bypass) */
-	zx_writel_mask(layer + GL_CTRL3, GL_SCALER_BYPASS_MODE,
-		       GL_SCALER_BYPASS_MODE);
-
-	zx_gl_rsz_setup(zplane, src_w, src_h, dst_w, dst_h);
-
-	/* Enable HBSC block */
-	zx_writel_mask(hbsc + HBSC_CTRL0, HBSC_CTRL_EN, HBSC_CTRL_EN);
-
-	zx_vou_layer_enable(plane);
-
-	zx_gl_set_update(zplane);
-}
-
-static const struct drm_plane_helper_funcs zx_gl_plane_helper_funcs = {
-	.atomic_check = zx_gl_plane_atomic_check,
-	.atomic_update = zx_gl_plane_atomic_update,
-	.atomic_disable = zx_plane_atomic_disable,
-};
-
-static const struct drm_plane_funcs zx_plane_funcs = {
-	.update_plane = drm_atomic_helper_update_plane,
-	.disable_plane = drm_atomic_helper_disable_plane,
-	.destroy = drm_plane_cleanup,
-	.reset = drm_atomic_helper_plane_reset,
-	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
-	.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
-};
-
-void zx_plane_set_update(struct drm_plane *plane)
-{
-	struct zx_plane *zplane = to_zx_plane(plane);
-
-	/* Do nothing if the plane is not enabled */
-	if (!plane->state->crtc)
-		return;
-
-	switch (plane->type) {
-	case DRM_PLANE_TYPE_PRIMARY:
-		zx_gl_rsz_set_update(zplane);
-		zx_gl_set_update(zplane);
-		break;
-	case DRM_PLANE_TYPE_OVERLAY:
-		zx_vl_rsz_set_update(zplane);
-		zx_vl_set_update(zplane);
-		break;
-	default:
-		WARN_ONCE(1, "unsupported plane type %d\n", plane->type);
-	}
-}
-
-static void zx_plane_hbsc_init(struct zx_plane *zplane)
-{
-	void __iomem *hbsc = zplane->hbsc;
-
-	/*
-	 *  Initialize HBSC block with a sane configuration per recommedation
-	 *  from ZTE BSP code.
-	 */
-	zx_writel(hbsc + HBSC_SATURATION, 0x200);
-	zx_writel(hbsc + HBSC_HUE, 0x0);
-	zx_writel(hbsc + HBSC_BRIGHT, 0x0);
-	zx_writel(hbsc + HBSC_CONTRAST, 0x200);
-
-	zx_writel(hbsc + HBSC_THRESHOLD_COL1, (0x3ac << 16) | 0x40);
-	zx_writel(hbsc + HBSC_THRESHOLD_COL2, (0x3c0 << 16) | 0x40);
-	zx_writel(hbsc + HBSC_THRESHOLD_COL3, (0x3c0 << 16) | 0x40);
-}
-
-int zx_plane_init(struct drm_device *drm, struct zx_plane *zplane,
-		  enum drm_plane_type type)
-{
-	const struct drm_plane_helper_funcs *helper;
-	struct drm_plane *plane = &zplane->plane;
-	struct device *dev = zplane->dev;
-	const uint32_t *formats;
-	unsigned int format_count;
-	int ret;
-
-	zx_plane_hbsc_init(zplane);
-
-	switch (type) {
-	case DRM_PLANE_TYPE_PRIMARY:
-		helper = &zx_gl_plane_helper_funcs;
-		formats = gl_formats;
-		format_count = ARRAY_SIZE(gl_formats);
-		break;
-	case DRM_PLANE_TYPE_OVERLAY:
-		helper = &zx_vl_plane_helper_funcs;
-		formats = vl_formats;
-		format_count = ARRAY_SIZE(vl_formats);
-		break;
-	default:
-		return -ENODEV;
-	}
-
-	ret = drm_universal_plane_init(drm, plane, VOU_CRTC_MASK,
-				       &zx_plane_funcs, formats, format_count,
-				       NULL, type, NULL);
-	if (ret) {
-		DRM_DEV_ERROR(dev, "failed to init universal plane: %d\n", ret);
-		return ret;
-	}
-
-	drm_plane_helper_add(plane, helper);
-
-	return 0;
-}