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authorLinus Torvalds <torvalds@linux-foundation.org>2018-04-03 12:06:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-03 12:06:21 -0700
commit75dcc7ef952af106c1b7051daa591b566632fd30 (patch)
treef297f538da5509758d28e33fcd8b17ff67c7387e /arch/mips
parentb51c4354dffd32b3472c5a3da7ce864c7be82601 (diff)
parent0930437e8f9d1f513ca7f130a650b608358f8805 (diff)
downloadlinux-75dcc7ef952af106c1b7051daa591b566632fd30.tar.gz
Merge tag 'spi-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull SPI updates from Mark Brown:
 "A quiet release for SPI, some fixes and small updates for individual
  drivers with one bigger change from Linus Walleij which coverts the
  bitbanging SPI driver to use the GPIO descriptor API from Linus
  Walleij.

  Since GPIO descriptors were used by platform data this means there's a
  few changes in arch/ making relevant updates for a few platforms and
  one misc driver that are affected"

* tag 'spi-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (24 commits)
  MAINTAINERS: update Andi's e-mail
  spi: spi-atmel: Use correct enum for DMA transfer direction
  spi: sh-msiof: Document R-Car M3-N support
  spi: sh-msiof: Use correct enum for DMA transfer direction
  spi: sprd: Add the support of restarting the system
  spi: sprd: Simplify the transfer function
  spi: Fix unregistration of controller with fixed SPI bus number
  spi: rspi: use correct enum for DMA transfer direction
  spi: jcore: disable ref_clk after getting its rate
  spi: bcm-qspi: fIX some error handling paths
  spi: pxa2xx: Disable runtime PM if controller registration fails
  spi: tegra20-slink: use true and false for boolean values
  spi: Fix scatterlist elements size in spi_map_buf
  spi: atmel: init FIFOs before spi enable
  spi: orion: Prepare space for per-child options
  spi: orion: Make the error message greppable
  spi: orion: Rework GPIO CS handling
  spi: bcm2835aux: Avoid 64-bit arithmetic in xfer len calc
  spi: spi-gpio: Augment device tree bindings
  spi: spi-gpio: Rewrite to use GPIO descriptors
  ...
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/alchemy/devboards/db1000.c24
-rw-r--r--arch/mips/jz4740/board-qi_lb60.c26
2 files changed, 38 insertions, 12 deletions
diff --git a/arch/mips/alchemy/devboards/db1000.c b/arch/mips/alchemy/devboards/db1000.c
index 433c4b9a9f0a..13e3c84859fe 100644
--- a/arch/mips/alchemy/devboards/db1000.c
+++ b/arch/mips/alchemy/devboards/db1000.c
@@ -22,6 +22,7 @@
 #include <linux/clk.h>
 #include <linux/dma-mapping.h>
 #include <linux/gpio.h>
+#include <linux/gpio/machine.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/leds.h>
@@ -447,9 +448,6 @@ static struct ads7846_platform_data db1100_touch_pd = {
 };
 
 static struct spi_gpio_platform_data db1100_spictl_pd = {
-	.sck		= 209,
-	.mosi		= 208,
-	.miso		= 207,
 	.num_chipselect = 1,
 };
 
@@ -462,7 +460,6 @@ static struct spi_board_info db1100_spi_info[] __initdata = {
 		.mode		 = 0,
 		.irq		 = AU1100_GPIO21_INT,
 		.platform_data	 = &db1100_touch_pd,
-		.controller_data = (void *)210, /* for spi_gpio: CS# GPIO210 */
 	},
 };
 
@@ -474,6 +471,24 @@ static struct platform_device db1100_spi_dev = {
 	},
 };
 
+/*
+ * Alchemy GPIO 2 has its base at 200 so the GPIO lines
+ * 207 thru 210 are GPIOs at offset 7 thru 10 at this chip.
+ */
+static struct gpiod_lookup_table db1100_spi_gpiod_table = {
+	.dev_id         = "spi_gpio",
+	.table          = {
+		GPIO_LOOKUP("alchemy-gpio2", 9,
+			    "sck", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("alchemy-gpio2", 8,
+			    "mosi", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("alchemy-gpio2", 7,
+			    "miso", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("alchemy-gpio2", 10,
+			    "cs", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
 
 static struct platform_device *db1x00_devs[] = {
 	&db1x00_codec_dev,
@@ -541,6 +556,7 @@ int __init db1000_dev_setup(void)
 			clk_put(p);
 
 		platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs));
+		gpiod_add_lookup_table(&db1100_spi_gpiod_table);
 		platform_device_register(&db1100_spi_dev);
 	} else if (board == BCSR_WHOAMI_DB1000) {
 		c0 = AU1000_GPIO2_INT;
diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c
index 6d7f97552200..60f0767507c6 100644
--- a/arch/mips/jz4740/board-qi_lb60.c
+++ b/arch/mips/jz4740/board-qi_lb60.c
@@ -313,25 +313,34 @@ static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
 	.pixclk_falling_edge = 1,
 };
 
-struct spi_gpio_platform_data spigpio_platform_data = {
-	.sck = JZ_GPIO_PORTC(23),
-	.mosi = JZ_GPIO_PORTC(22),
-	.miso = -1,
+struct spi_gpio_platform_data qi_lb60_spigpio_platform_data = {
 	.num_chipselect = 1,
 };
 
-static struct platform_device spigpio_device = {
+static struct platform_device qi_lb60_spigpio_device = {
 	.name = "spi_gpio",
 	.id   = 1,
 	.dev = {
-		.platform_data = &spigpio_platform_data,
+		.platform_data = &qi_lb60_spigpio_platform_data,
+	},
+};
+
+static struct gpiod_lookup_table qi_lb60_spigpio_gpio_table = {
+	.dev_id         = "spi_gpio",
+	.table          = {
+		GPIO_LOOKUP("GPIOC", 23,
+			    "sck", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOC", 22,
+			    "mosi", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOC", 21,
+			    "cs", GPIO_ACTIVE_HIGH),
+		{ },
 	},
 };
 
 static struct spi_board_info qi_lb60_spi_board_info[] = {
 	{
 		.modalias = "ili8960",
-		.controller_data = (void *)JZ_GPIO_PORTC(21),
 		.chip_select = 0,
 		.bus_num = 1,
 		.max_speed_hz = 30 * 1000,
@@ -435,7 +444,7 @@ static struct platform_device *jz_platform_devices[] __initdata = {
 	&jz4740_mmc_device,
 	&jz4740_nand_device,
 	&qi_lb60_keypad,
-	&spigpio_device,
+	&qi_lb60_spigpio_device,
 	&jz4740_framebuffer_device,
 	&jz4740_pcm_device,
 	&jz4740_i2s_device,
@@ -489,6 +498,7 @@ static int __init qi_lb60_init_platform_devices(void)
 
 	gpiod_add_lookup_table(&qi_lb60_audio_gpio_table);
 	gpiod_add_lookup_table(&qi_lb60_nand_gpio_table);
+	gpiod_add_lookup_table(&qi_lb60_spigpio_gpio_table);
 
 	spi_register_board_info(qi_lb60_spi_board_info,
 				ARRAY_SIZE(qi_lb60_spi_board_info));