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
  ...

30 files changed, 578 insertions, 417 deletions

diff --git a/.mailmap b/.mailmap
index a2ce89a456c2..dc42cfb41304 100644
--- a/.mailmap
+++ b/.mailmap
@@ -18,6 +18,7 @@ Aleksey Gorelov <aleksey_gorelov@phoenix.com>
 Aleksandar Markovic <aleksandar.markovic@mips.com> <aleksandar.markovic@imgtec.com>
 Al Viro <viro@ftp.linux.org.uk>
 Al Viro <viro@zenIV.linux.org.uk>
+Andi Shyti <andi@etezian.org> <andi.shyti@samsung.com>
 Andreas Herrmann <aherrman@de.ibm.com>
 Andrey Ryabinin <ryabinin.a.a@gmail.com> <a.ryabinin@samsung.com>
 Andrew Morton <akpm@linux-foundation.org>
diff --git a/Documentation/devicetree/bindings/spi/sh-msiof.txt b/Documentation/devicetree/bindings/spi/sh-msiof.txt
index 80710f0f0448..39806329c193 100644
--- a/Documentation/devicetree/bindings/spi/sh-msiof.txt
+++ b/Documentation/devicetree/bindings/spi/sh-msiof.txt
@@ -10,6 +10,7 @@ Required properties:
 			 "renesas,msiof-r8a7794" (R-Car E2)
 			 "renesas,msiof-r8a7795" (R-Car H3)
 			 "renesas,msiof-r8a7796" (R-Car M3-W)
+			 "renesas,msiof-r8a77965" (R-Car M3-N)
 			 "renesas,msiof-sh73a0" (SH-Mobile AG5)
 			 "renesas,sh-mobile-msiof" (generic SH-Mobile compatibile device)
 			 "renesas,rcar-gen2-msiof" (generic R-Car Gen2 and RZ/G1 compatible device)
diff --git a/Documentation/devicetree/bindings/spi/spi-gpio.txt b/Documentation/devicetree/bindings/spi/spi-gpio.txt
index a95603bcf6ff..52db562f17a4 100644
--- a/Documentation/devicetree/bindings/spi/spi-gpio.txt
+++ b/Documentation/devicetree/bindings/spi/spi-gpio.txt
@@ -1,18 +1,30 @@
 SPI-GPIO devicetree bindings
 
+This represents a group of 3-n GPIO lines used for bit-banged SPI on dedicated
+GPIO lines.
+
 Required properties:
 
  - compatible: should be set to "spi-gpio"
  - #address-cells: should be set to <0x1>
  - ranges
- - gpio-sck: GPIO spec for the SCK line to use
- - gpio-miso: GPIO spec for the MISO line to use
- - gpio-mosi: GPIO spec for the MOSI line to use
+ - sck-gpios: GPIO spec for the SCK line to use
+ - miso-gpios: GPIO spec for the MISO line to use
+ - mosi-gpios: GPIO spec for the MOSI line to use
  - cs-gpios: GPIOs to use for chipselect lines.
              Not needed if num-chipselects = <0>.
  - num-chipselects: Number of chipselect lines. Should be <0> if a single device
                     with no chip select is connected.
 
+Deprecated bindings:
+
+These legacy GPIO line bindings can alternatively be used to define the
+GPIO lines used, they should not be used in new device trees.
+
+ - gpio-sck: GPIO spec for the SCK line to use
+ - gpio-miso: GPIO spec for the MISO line to use
+ - gpio-mosi: GPIO spec for the MOSI line to use
+
 Example:
 
 	spi {
@@ -20,9 +32,9 @@ Example:
 		#address-cells = <0x1>;
 		ranges;
 
-		gpio-sck = <&gpio 95 0>;
-		gpio-miso = <&gpio 98 0>;
-		gpio-mosi = <&gpio 97 0>;
+		sck-gpios = <&gpio 95 0>;
+		miso-gpios = <&gpio 98 0>;
+		mosi-gpios = <&gpio 97 0>;
 		cs-gpios = <&gpio 125 0>;
 		num-chipselects = <1>;
 
diff --git a/MAINTAINERS b/MAINTAINERS
index 6acc800aa28c..5a9634a0eeb4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12181,7 +12181,7 @@ F:	Documentation/devicetree/bindings/clock/exynos*.txt
 SAMSUNG SPI DRIVERS
 M:	Kukjin Kim <kgene@kernel.org>
 M:	Krzysztof Kozlowski <krzk@kernel.org>
-M:	Andi Shyti <andi.shyti@samsung.com>
+M:	Andi Shyti <andi@etezian.org>
 L:	linux-spi@vger.kernel.org
 L:	linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
 S:	Maintained
diff --git a/arch/arm/mach-pxa/cm-x300.c b/arch/arm/mach-pxa/cm-x300.c
index c487401b6fdb..69d7f48a4183 100644
--- a/arch/arm/mach-pxa/cm-x300.c
+++ b/arch/arm/mach-pxa/cm-x300.c
@@ -23,6 +23,7 @@
 #include <linux/clk.h>
 
 #include <linux/gpio.h>
+#include <linux/gpio/machine.h>
 #include <linux/dm9000.h>
 #include <linux/leds.h>
 #include <linux/platform_data/rtc-v3020.h>
@@ -343,9 +344,6 @@ static inline void cm_x300_init_bl(void) {}
 #define LCD_SPI_BUS_NUM	(1)
 
 static struct spi_gpio_platform_data cm_x300_spi_gpio_pdata = {
-	.sck		= GPIO_LCD_SCL,
-	.mosi		= GPIO_LCD_DIN,
-	.miso		= GPIO_LCD_DOUT,
 	.num_chipselect	= 1,
 };
 
@@ -357,6 +355,21 @@ static struct platform_device cm_x300_spi_gpio = {
 	},
 };
 
+static struct gpiod_lookup_table cm_x300_spi_gpiod_table = {
+	.dev_id         = "spi_gpio",
+	.table          = {
+		GPIO_LOOKUP("gpio-pxa", GPIO_LCD_SCL,
+			    "sck", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("gpio-pxa", GPIO_LCD_DIN,
+			    "mosi", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("gpio-pxa", GPIO_LCD_DOUT,
+			    "miso", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("gpio-pxa", GPIO_LCD_CS,
+			    "cs", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
 static struct tdo24m_platform_data cm_x300_tdo24m_pdata = {
 	.model = TDO35S,
 };
@@ -367,7 +380,6 @@ static struct spi_board_info cm_x300_spi_devices[] __initdata = {
 		.max_speed_hz		= 1000000,
 		.bus_num		= LCD_SPI_BUS_NUM,
 		.chip_select		= 0,
-		.controller_data	= (void *) GPIO_LCD_CS,
 		.platform_data		= &cm_x300_tdo24m_pdata,
 	},
 };
@@ -376,6 +388,7 @@ static void __init cm_x300_init_spi(void)
 {
 	spi_register_board_info(cm_x300_spi_devices,
 				ARRAY_SIZE(cm_x300_spi_devices));
+	gpiod_add_lookup_table(&cm_x300_spi_gpiod_table);
 	platform_device_register(&cm_x300_spi_gpio);
 }
 #else
diff --git a/arch/arm/mach-pxa/raumfeld.c b/arch/arm/mach-pxa/raumfeld.c
index 4d5d05cf87d6..e7ac7dcb95e9 100644
--- a/arch/arm/mach-pxa/raumfeld.c
+++ b/arch/arm/mach-pxa/raumfeld.c
@@ -646,9 +646,6 @@ static void __init raumfeld_lcd_init(void)
  */
 
 static struct spi_gpio_platform_data raumfeld_spi_platform_data = {
-	.sck		= GPIO_SPI_CLK,
-	.mosi		= GPIO_SPI_MOSI,
-	.miso		= GPIO_SPI_MISO,
 	.num_chipselect	= 3,
 };
 
@@ -660,6 +657,25 @@ static struct platform_device raumfeld_spi_device = {
 	}
 };
 
+static struct gpiod_lookup_table raumfeld_spi_gpiod_table = {
+	.dev_id         = "spi_gpio",
+	.table          = {
+		GPIO_LOOKUP("gpio-0", GPIO_SPI_CLK,
+			    "sck", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("gpio-0", GPIO_SPI_MOSI,
+			    "mosi", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("gpio-0", GPIO_SPI_MISO,
+			    "miso", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP_IDX("gpio-0", GPIO_SPDIF_CS,
+				"cs", 0, GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP_IDX("gpio-0", GPIO_ACCEL_CS,
+				"cs", 1, GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP_IDX("gpio-0", GPIO_MCLK_DAC_CS,
+				"cs", 2, GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
 static struct lis3lv02d_platform_data lis3_pdata = {
 	.click_flags 	= LIS3_CLICK_SINGLE_X |
 			  LIS3_CLICK_SINGLE_Y |
@@ -680,7 +696,6 @@ static struct lis3lv02d_platform_data lis3_pdata = {
 	.max_speed_hz	= 10000,		\
 	.bus_num	= 0,			\
 	.chip_select	= 0,			\
-	.controller_data = (void *) GPIO_SPDIF_CS,	\
 }
 
 #define SPI_LIS3	\
@@ -689,7 +704,6 @@ static struct lis3lv02d_platform_data lis3_pdata = {
 	.max_speed_hz	= 1000000,		\
 	.bus_num	= 0,			\
 	.chip_select	= 1,			\
-	.controller_data = (void *) GPIO_ACCEL_CS,	\
 	.platform_data	= &lis3_pdata,		\
 	.irq		= PXA_GPIO_TO_IRQ(GPIO_ACCEL_IRQ),	\
 }
@@ -700,7 +714,6 @@ static struct lis3lv02d_platform_data lis3_pdata = {
 	.max_speed_hz	= 1000000,		\
 	.bus_num	= 0,			\
 	.chip_select	= 2,			\
-	.controller_data = (void *) GPIO_MCLK_DAC_CS,	\
 }
 
 static struct spi_board_info connector_spi_devices[] __initdata = {
@@ -1066,6 +1079,7 @@ static void __init raumfeld_common_init(void)
 	else
 		gpio_direction_output(GPIO_SHUTDOWN_SUPPLY, 0);
 
+	gpiod_add_lookup_table(&raumfeld_spi_gpiod_table);
 	platform_add_devices(ARRAY_AND_SIZE(raumfeld_common_devices));
 	i2c_register_board_info(1, &raumfeld_pwri2c_board_info, 1);
 }
diff --git a/arch/arm/mach-s3c24xx/mach-jive.c b/arch/arm/mach-s3c24xx/mach-jive.c
index a3ddbbbd6d92..59589a4a0d4b 100644
--- a/arch/arm/mach-s3c24xx/mach-jive.c
+++ b/arch/arm/mach-s3c24xx/mach-jive.c
@@ -12,6 +12,7 @@
 #include <linux/timer.h>
 #include <linux/init.h>
 #include <linux/gpio.h>
+#include <linux/gpio/machine.h>
 #include <linux/syscore_ops.h>
 #include <linux/serial_core.h>
 #include <linux/serial_s3c.h>
@@ -388,32 +389,53 @@ static struct ili9320_platdata jive_lcm_config = {
 /* LCD SPI support */
 
 static struct spi_gpio_platform_data jive_lcd_spi = {
-	.sck		= S3C2410_GPG(8),
-	.mosi		= S3C2410_GPB(8),
-	.miso		= SPI_GPIO_NO_MISO,
+	.num_chipselect	= 1,
 };
 
 static struct platform_device jive_device_lcdspi = {
-	.name		= "spi-gpio",
+	.name		= "spi_gpio",
 	.id		= 1,
 	.dev.platform_data = &jive_lcd_spi,
 };
 
+static struct gpiod_lookup_table jive_lcdspi_gpiod_table = {
+	.dev_id         = "spi_gpio",
+	.table          = {
+		GPIO_LOOKUP("GPIOG", 8,
+			    "sck", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOB", 8,
+			    "mosi", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOB", 7,
+			    "cs", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
 
 /* WM8750 audio code SPI definition */
 
 static struct spi_gpio_platform_data jive_wm8750_spi = {
-	.sck		= S3C2410_GPB(4),
-	.mosi		= S3C2410_GPB(9),
-	.miso		= SPI_GPIO_NO_MISO,
+	.num_chipselect	= 1,
 };
 
 static struct platform_device jive_device_wm8750 = {
-	.name		= "spi-gpio",
+	.name		= "spi_gpio",
 	.id		= 2,
 	.dev.platform_data = &jive_wm8750_spi,
 };
 
+static struct gpiod_lookup_table jive_wm8750_gpiod_table = {
+	.dev_id         = "spi_gpio",
+	.table          = {
+		GPIO_LOOKUP("GPIOB", 4,
+			    "gpio-sck", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOB", 9,
+			    "gpio-mosi", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOH", 10,
+			    "cs", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
 /* JIVE SPI devices. */
 
 static struct spi_board_info __initdata jive_spi_devs[] = {
@@ -424,14 +446,12 @@ static struct spi_board_info __initdata jive_spi_devs[] = {
 		.mode		= SPI_MODE_3,	/* CPOL=1, CPHA=1 */
 		.max_speed_hz	= 100000,
 		.platform_data	= &jive_lcm_config,
-		.controller_data = (void *)S3C2410_GPB(7),
 	}, {
 		.modalias	= "WM8750",
 		.bus_num	= 2,
 		.chip_select	= 0,
 		.mode		= SPI_MODE_0,	/* CPOL=0, CPHA=0 */
 		.max_speed_hz	= 100000,
-		.controller_data = (void *)S3C2410_GPH(10),
 	},
 };
 
@@ -619,25 +639,12 @@ static void __init jive_machine_init(void)
 	/** TODO - check that this is after the cmdline option! */
 	s3c_nand_set_platdata(&jive_nand_info);
 
-	/* initialise the spi */
-
 	gpio_request(S3C2410_GPG(13), "lcm reset");
 	gpio_direction_output(S3C2410_GPG(13), 0);
 
-	gpio_request(S3C2410_GPB(7), "jive spi");
-	gpio_direction_output(S3C2410_GPB(7), 1);
-
 	gpio_request_one(S3C2410_GPB(6), GPIOF_OUT_INIT_LOW, NULL);
 	gpio_free(S3C2410_GPB(6));
 
-	gpio_request_one(S3C2410_GPG(8), GPIOF_OUT_INIT_HIGH, NULL);
-	gpio_free(S3C2410_GPG(8));
-
-	/* initialise the WM8750 spi */
-
-	gpio_request(S3C2410_GPH(10), "jive wm8750 spi");
-	gpio_direction_output(S3C2410_GPH(10), 1);
-
 	/* Turn off suspend on both USB ports, and switch the
 	 * selectable USB port to USB device mode. */
 
@@ -655,6 +662,8 @@ static void __init jive_machine_init(void)
 
 	pm_power_off = jive_power_off;
 
+	gpiod_add_lookup_table(&jive_lcdspi_gpiod_table);
+	gpiod_add_lookup_table(&jive_wm8750_gpiod_table);
 	platform_add_devices(jive_devices, ARRAY_SIZE(jive_devices));
 }
 
diff --git a/arch/arm/mach-s3c24xx/mach-qt2410.c b/arch/arm/mach-s3c24xx/mach-qt2410.c
index 9c8373b8d9c3..5d48e5b6e738 100644
--- a/arch/arm/mach-s3c24xx/mach-qt2410.c
+++ b/arch/arm/mach-s3c24xx/mach-qt2410.c
@@ -11,6 +11,7 @@
 #include <linux/timer.h>
 #include <linux/init.h>
 #include <linux/gpio.h>
+#include <linux/gpio/machine.h>
 #include <linux/device.h>
 #include <linux/platform_device.h>
 #include <linux/serial_core.h>
@@ -194,17 +195,30 @@ static struct platform_device qt2410_led = {
 /* SPI */
 
 static struct spi_gpio_platform_data spi_gpio_cfg = {
-	.sck		= S3C2410_GPG(7),
-	.mosi		= S3C2410_GPG(6),
-	.miso		= S3C2410_GPG(5),
+	.num_chipselect	= 1,
 };
 
 static struct platform_device qt2410_spi = {
-	.name		= "spi-gpio",
+	.name		= "spi_gpio",
 	.id		= 1,
 	.dev.platform_data = &spi_gpio_cfg,
 };
 
+static struct gpiod_lookup_table qt2410_spi_gpiod_table = {
+	.dev_id         = "spi_gpio",
+	.table          = {
+		GPIO_LOOKUP("GPIOG", 7,
+			    "sck", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOG", 6,
+			    "mosi", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOG", 5,
+			    "miso", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOB", 5,
+			    "cs", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
 /* Board devices */
 
 static struct platform_device *qt2410_devices[] __initdata = {
@@ -323,9 +337,7 @@ static void __init qt2410_machine_init(void)
 	s3c24xx_udc_set_platdata(&qt2410_udc_cfg);
 	s3c_i2c0_set_platdata(NULL);
 
-	WARN_ON(gpio_request(S3C2410_GPB(5), "spi cs"));
-	gpio_direction_output(S3C2410_GPB(5), 1);
-
+	gpiod_add_lookup_table(&qt2410_spi_gpiod_table);
 	platform_add_devices(qt2410_devices, ARRAY_SIZE(qt2410_devices));
 	s3c_pm_init();
 }
diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c
index 5655fe968b1f..951208f168e7 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq.c
@@ -206,17 +206,30 @@ static int __init smartq_lcd_setup_gpio(void)
 
 /* GPM0 -> CS */
 static struct spi_gpio_platform_data smartq_lcd_control = {
-	.sck			= S3C64XX_GPM(1),
-	.mosi			= S3C64XX_GPM(2),
-	.miso			= S3C64XX_GPM(2),
+	.num_chipselect	= 1,
 };
 
 static struct platform_device smartq_lcd_control_device = {
-	.name			= "spi-gpio",
+	.name			= "spi_gpio",
 	.id			= 1,
 	.dev.platform_data	= &smartq_lcd_control,
 };
 
+static struct gpiod_lookup_table smartq_lcd_control_gpiod_table = {
+	.dev_id         = "spi_gpio",
+	.table          = {
+		GPIO_LOOKUP("GPIOM", 1,
+			    "sck", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOM", 2,
+			    "mosi", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOM", 3,
+			    "miso", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOM", 0,
+			    "cs", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
 static void smartq_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
 {
 	gpio_direction_output(S3C64XX_GPM(3), power);
@@ -404,6 +417,7 @@ void __init smartq_machine_init(void)
 	WARN_ON(smartq_wifi_init());
 
 	pwm_add_table(smartq_pwm_lookup, ARRAY_SIZE(smartq_pwm_lookup));
+	gpiod_add_lookup_table(&smartq_lcd_control_gpiod_table);
 	platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices));
 
 	gpiod_add_lookup_table(&smartq_audio_gpios);
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));
diff --git a/drivers/misc/eeprom/digsy_mtc_eeprom.c b/drivers/misc/eeprom/digsy_mtc_eeprom.c
index 66d9e1baeae5..fbde2516c04f 100644
--- a/drivers/misc/eeprom/digsy_mtc_eeprom.c
+++ b/drivers/misc/eeprom/digsy_mtc_eeprom.c
@@ -7,9 +7,18 @@
  * 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.
+ *
+ * FIXME: this driver is used on a device-tree probed platform: it
+ * should be defined as a bit-banged SPI device and probed from the device
+ * tree and not like this with static grabbing of a few numbered GPIO
+ * lines at random.
+ *
+ * Add proper SPI and EEPROM in arch/powerpc/boot/dts/digsy_mtc.dts
+ * and delete this driver.
  */
 
 #include <linux/gpio.h>
+#include <linux/gpio/machine.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/spi/spi.h>
@@ -42,9 +51,6 @@ struct eeprom_93xx46_platform_data digsy_mtc_eeprom_data = {
 };
 
 static struct spi_gpio_platform_data eeprom_spi_gpio_data = {
-	.sck		= GPIO_EEPROM_CLK,
-	.mosi		= GPIO_EEPROM_DI,
-	.miso		= GPIO_EEPROM_DO,
 	.num_chipselect	= 1,
 };
 
@@ -56,6 +62,21 @@ static struct platform_device digsy_mtc_eeprom = {
 	},
 };
 
+static struct gpiod_lookup_table eeprom_spi_gpiod_table = {
+	.dev_id         = "spi_gpio",
+	.table          = {
+		GPIO_LOOKUP("gpio@b00", GPIO_EEPROM_CLK,
+			    "sck", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("gpio@b00", GPIO_EEPROM_DI,
+			    "mosi", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("gpio@b00", GPIO_EEPROM_DO,
+			    "miso", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("gpio@b00", GPIO_EEPROM_CS,
+			    "cs", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
 static struct spi_board_info digsy_mtc_eeprom_info[] __initdata = {
 	{
 		.modalias		= "93xx46",
@@ -63,7 +84,6 @@ static struct spi_board_info digsy_mtc_eeprom_info[] __initdata = {
 		.bus_num		= EE_SPI_BUS_NUM,
 		.chip_select		= 0,
 		.mode			= SPI_MODE_0,
-		.controller_data	= (void *)GPIO_EEPROM_CS,
 		.platform_data		= &digsy_mtc_eeprom_data,
 	},
 };
@@ -78,6 +98,7 @@ static int __init digsy_mtc_eeprom_devices_init(void)
 		pr_err("can't request gpio %d\n", GPIO_EEPROM_OE);
 		return ret;
 	}
+	gpiod_add_lookup_table(&eeprom_spi_gpiod_table);
 	spi_register_board_info(digsy_mtc_eeprom_info,
 				ARRAY_SIZE(digsy_mtc_eeprom_info));
 	return platform_device_register(&digsy_mtc_eeprom);
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 4a11fc0d4136..3f890d162934 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -768,14 +768,14 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master,
 		rxdesc = dmaengine_prep_slave_single(rxchan,
 						     as->dma_addr_rx_bbuf,
 						     xfer->len,
-						     DMA_FROM_DEVICE,
+						     DMA_DEV_TO_MEM,
 						     DMA_PREP_INTERRUPT |
 						     DMA_CTRL_ACK);
 	} else {
 		rxdesc = dmaengine_prep_slave_sg(rxchan,
 						 xfer->rx_sg.sgl,
 						 xfer->rx_sg.nents,
-						 DMA_FROM_DEVICE,
+						 DMA_DEV_TO_MEM,
 						 DMA_PREP_INTERRUPT |
 						 DMA_CTRL_ACK);
 	}
@@ -787,14 +787,14 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master,
 		memcpy(as->addr_tx_bbuf, xfer->tx_buf, xfer->len);
 		txdesc = dmaengine_prep_slave_single(txchan,
 						     as->dma_addr_tx_bbuf,
-						     xfer->len, DMA_TO_DEVICE,
+						     xfer->len, DMA_MEM_TO_DEV,
 						     DMA_PREP_INTERRUPT |
 						     DMA_CTRL_ACK);
 	} else {
 		txdesc = dmaengine_prep_slave_sg(txchan,
 						 xfer->tx_sg.sgl,
 						 xfer->tx_sg.nents,
-						 DMA_TO_DEVICE,
+						 DMA_MEM_TO_DEV,
 						 DMA_PREP_INTERRUPT |
 						 DMA_CTRL_ACK);
 	}
@@ -1512,6 +1512,11 @@ static void atmel_spi_init(struct atmel_spi *as)
 {
 	spi_writel(as, CR, SPI_BIT(SWRST));
 	spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */
+
+	/* It is recommended to enable FIFOs first thing after reset */
+	if (as->fifo_size)
+		spi_writel(as, CR, SPI_BIT(FIFOEN));
+
 	if (as->caps.has_wdrbt) {
 		spi_writel(as, MR, SPI_BIT(WDRBT) | SPI_BIT(MODFDIS)
 				| SPI_BIT(MSTR));
@@ -1522,9 +1527,6 @@ static void atmel_spi_init(struct atmel_spi *as)
 	if (as->use_pdc)
 		spi_writel(as, PTCR, SPI_BIT(RXTDIS) | SPI_BIT(TXTDIS));
 	spi_writel(as, CR, SPI_BIT(SPIEN));
-
-	if (as->fifo_size)
-		spi_writel(as, CR, SPI_BIT(FIFOEN));
 }
 
 static int atmel_spi_probe(struct platform_device *pdev)
diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c
index a172ab299e80..1596d35498c5 100644
--- a/drivers/spi/spi-bcm-qspi.c
+++ b/drivers/spi/spi-bcm-qspi.c
@@ -1247,7 +1247,7 @@ int bcm_qspi_probe(struct platform_device *pdev,
 		qspi->base[MSPI]  = devm_ioremap_resource(dev, res);
 		if (IS_ERR(qspi->base[MSPI])) {
 			ret = PTR_ERR(qspi->base[MSPI]);
-			goto qspi_probe_err;
+			goto qspi_resource_err;
 		}
 	} else {
 		goto qspi_resource_err;
@@ -1258,7 +1258,7 @@ int bcm_qspi_probe(struct platform_device *pdev,
 		qspi->base[BSPI]  = devm_ioremap_resource(dev, res);
 		if (IS_ERR(qspi->base[BSPI])) {
 			ret = PTR_ERR(qspi->base[BSPI]);
-			goto qspi_probe_err;
+			goto qspi_resource_err;
 		}
 		qspi->bspi_mode = true;
 	} else {
diff --git a/drivers/spi/spi-bcm2835aux.c b/drivers/spi/spi-bcm2835aux.c
index 7428091d3f5b..1431cb98fe40 100644
--- a/drivers/spi/spi-bcm2835aux.c
+++ b/drivers/spi/spi-bcm2835aux.c
@@ -321,7 +321,6 @@ static int bcm2835aux_spi_transfer_one(struct spi_master *master,
 	struct bcm2835aux_spi *bs = spi_master_get_devdata(master);
 	unsigned long spi_hz, clk_hz, speed;
 	unsigned long spi_used_hz;
-	unsigned long long xfer_time_us;
 
 	/* calculate the registers to handle
 	 *
@@ -358,20 +357,21 @@ static int bcm2835aux_spi_transfer_one(struct spi_master *master,
 	bs->rx_len = tfr->len;
 	bs->pending = 0;
 
-	/* calculate the estimated time in us the transfer runs
-	 * note that there are are 2 idle clocks after each
-	 * chunk getting transferred - in our case the chunk size
-	 * is 3 bytes, so we approximate this by 9 bits/byte
+	/* Calculate the estimated time in us the transfer runs.  Note that
+	 * there are are 2 idle clocks cycles after each chunk getting
+	 * transferred - in our case the chunk size is 3 bytes, so we
+	 * approximate this by 9 cycles/byte.  This is used to find the number
+	 * of Hz per byte per polling limit.  E.g., we can transfer 1 byte in
+	 * 30 µs per 300,000 Hz of bus clock.
 	 */
-	xfer_time_us = tfr->len * 9 * 1000000;
-	do_div(xfer_time_us, spi_used_hz);
-
+#define HZ_PER_BYTE ((9 * 1000000) / BCM2835_AUX_SPI_POLLING_LIMIT_US)
 	/* run in polling mode for short transfers */
-	if (xfer_time_us < BCM2835_AUX_SPI_POLLING_LIMIT_US)
+	if (tfr->len < spi_used_hz / HZ_PER_BYTE)
 		return bcm2835aux_spi_transfer_one_poll(master, spi, tfr);
 
 	/* run in interrupt mode for all others */
 	return bcm2835aux_spi_transfer_one_irq(master, spi, tfr);
+#undef HZ_PER_BYTE
 }
 
 static int bcm2835aux_spi_prepare_message(struct spi_master *master,
diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index 837cb8d0bac6..3db905f5f345 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -112,10 +112,10 @@ static irqreturn_t dma_transfer(struct dw_spi *dws)
 	return IRQ_HANDLED;
 }
 
-static bool mid_spi_can_dma(struct spi_master *master, struct spi_device *spi,
-		struct spi_transfer *xfer)
+static bool mid_spi_can_dma(struct spi_controller *master,
+		struct spi_device *spi, struct spi_transfer *xfer)
 {
-	struct dw_spi *dws = spi_master_get_devdata(master);
+	struct dw_spi *dws = spi_controller_get_devdata(master);
 
 	if (!dw