Merge tag 'pinctrl-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "Here is the bulk of pin control changes for the v4.2 series: Quite a
  lot of new SoC subdrivers and two new main drivers this time, apart
  from that business as usual.

  Details:

  Core functionality:
   - Enable exclusive pin ownership: it is possible to flag a pin
     controller so that GPIO and other functions cannot use a single pin
     simultaneously.

  New drivers:
   - NXP LPC18xx System Control Unit pin controller
   - Imagination Pistachio SoC pin controller

  New subdrivers:
   - Freescale i.MX7d SoC
   - Intel Sunrisepoint-H PCH
   - Renesas PFC R8A7793
   - Renesas PFC R8A7794
   - Mediatek MT6397, MT8127
   - SiRF Atlas 7
   - Allwinner A33
   - Qualcomm MSM8660
   - Marvell Armada 395
   - Rockchip RK3368

  Cleanups:
   - A big cleanup of the Marvell MVEBU driver rectifying it to
     correspond to reality
   - Drop platform device probing from the SH PFC driver, we are now a
     DT only shop for SuperH
   - Drop obsolte multi-platform check for SH PFC
   - Various janitorial: constification, grammar etc

  Improvements:
   - The AT91 GPIO portions now supports the set_multiple() feature
   - Split out SPI pins on the Xilinx Zynq
   - Support DTs without specific function nodes in the i.MX driver"

* tag 'pinctrl-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (99 commits)
  pinctrl: rockchip: add support for the rk3368
  pinctrl: rockchip: generalize perpin driver-strength setting
  pinctrl: sh-pfc: r8a7794: add SDHI pin groups
  pinctrl: sh-pfc: r8a7794: add MMCIF pin groups
  pinctrl: sh-pfc: add R8A7794 PFC support
  pinctrl: make pinctrl_register() return proper error code
  pinctrl: mvebu: armada-39x: add support for Armada 395 variant
  pinctrl: mvebu: armada-39x: add missing SATA functions
  pinctrl: mvebu: armada-39x: add missing PCIe functions
  pinctrl: mvebu: armada-38x: add ptp functions
  pinctrl: mvebu: armada-38x: add ua1 functions
  pinctrl: mvebu: armada-38x: add nand functions
  pinctrl: mvebu: armada-38x: add sata functions
  pinctrl: mvebu: armada-xp: add dram functions
  pinctrl: mvebu: armada-xp: add nand rb function
  pinctrl: mvebu: armada-xp: add spi1 function
  pinctrl: mvebu: armada-39x: normalize ref clock naming
  pinctrl: mvebu: armada-xp: rename spi to spi0
  pinctrl: mvebu: armada-370: align spi1 clock pin naming
  pinctrl: mvebu: armada-370: align VDD cpu-pd pin naming with datasheet
  ...

87 files changed, 17296 insertions, 687 deletions

diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index aeb5729fbda6..100d9ac2ae1f 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -88,6 +88,15 @@ config PINCTRL_LANTIQ
 	select PINMUX
 	select PINCONF
 
+config PINCTRL_LPC18XX
+	bool "NXP LPC18XX/43XX SCU pinctrl driver"
+	depends on OF && (ARCH_LPC18XX || COMPILE_TEST)
+	default ARCH_LPC18XX
+	select PINMUX
+	select GENERIC_PINCONF
+	help
+	  Pinctrl driver for NXP LPC18xx/43xx System Control Unit (SCU).
+
 config PINCTRL_FALCON
 	bool
 	depends on SOC_FALCON
@@ -123,7 +132,17 @@ config PINCTRL_SIRF
 	bool "CSR SiRFprimaII pin controller driver"
 	depends on ARCH_SIRF
 	select PINMUX
+	select PINCONF
+	select GENERIC_PINCONF
+	select GPIOLIB_IRQCHIP
+
+config PINCTRL_PISTACHIO
+	def_bool y if MACH_PISTACHIO
+	depends on GPIOLIB
+	select PINMUX
+	select GENERIC_PINCONF
 	select GPIOLIB_IRQCHIP
+	select OF_GPIO
 
 config PINCTRL_ST
 	bool
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 6eadf04a33b3..f4216d9347e2 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_PINCTRL_AMD)	+= pinctrl-amd.o
 obj-$(CONFIG_PINCTRL_FALCON)	+= pinctrl-falcon.o
 obj-$(CONFIG_PINCTRL_MESON)	+= meson/
 obj-$(CONFIG_PINCTRL_PALMAS)	+= pinctrl-palmas.o
+obj-$(CONFIG_PINCTRL_PISTACHIO)	+= pinctrl-pistachio.o
 obj-$(CONFIG_PINCTRL_ROCKCHIP)	+= pinctrl-rockchip.o
 obj-$(CONFIG_PINCTRL_SINGLE)	+= pinctrl-single.o
 obj-$(CONFIG_PINCTRL_SIRF)	+= sirf/
@@ -34,6 +35,7 @@ obj-$(CONFIG_PINCTRL_U300)	+= pinctrl-u300.o
 obj-$(CONFIG_PINCTRL_COH901)	+= pinctrl-coh901.o
 obj-$(CONFIG_PINCTRL_XWAY)	+= pinctrl-xway.o
 obj-$(CONFIG_PINCTRL_LANTIQ)	+= pinctrl-lantiq.o
+obj-$(CONFIG_PINCTRL_LPC18XX)	+= pinctrl-lpc18xx.o
 obj-$(CONFIG_PINCTRL_TB10X)	+= pinctrl-tb10x.o
 obj-$(CONFIG_PINCTRL_ST) 	+= pinctrl-st.o
 obj-$(CONFIG_PINCTRL_ZYNQ)	+= pinctrl-zynq.o
diff --git a/drivers/pinctrl/bcm/pinctrl-bcm281xx.c b/drivers/pinctrl/bcm/pinctrl-bcm281xx.c
index 9641f1c7617e..c3c692e508e8 100644
--- a/drivers/pinctrl/bcm/pinctrl-bcm281xx.c
+++ b/drivers/pinctrl/bcm/pinctrl-bcm281xx.c
@@ -1425,9 +1425,9 @@ static int __init bcm281xx_pinctrl_probe(struct platform_device *pdev)
 	pctl = pinctrl_register(&bcm281xx_pinctrl_desc,
 				&pdev->dev,
 				pdata);
-	if (!pctl) {
+	if (IS_ERR(pctl)) {
 		dev_err(&pdev->dev, "Failed to register pinctrl\n");
-		return -ENODEV;
+		return PTR_ERR(pctl);
 	}
 
 	platform_set_drvdata(pdev, pdata);
diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
index 8d908e3f42c3..efcf2a2b3975 100644
--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
@@ -1036,9 +1036,9 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
 	}
 
 	pc->pctl_dev = pinctrl_register(&bcm2835_pinctrl_desc, dev, pc);
-	if (!pc->pctl_dev) {
+	if (IS_ERR(pc->pctl_dev)) {
 		gpiochip_remove(&pc->gpio_chip);
-		return -EINVAL;
+		return PTR_ERR(pc->pctl_dev);
 	}
 
 	pc->gpio_range = bcm2835_pinctrl_gpio_range;
diff --git a/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c b/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c
index e406e3d8c1c7..7d9482bf8252 100644
--- a/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c
+++ b/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c
@@ -38,7 +38,7 @@
 #define CYGNUS_GPIO_DATA_IN_OFFSET   0x00
 #define CYGNUS_GPIO_DATA_OUT_OFFSET  0x04
 #define CYGNUS_GPIO_OUT_EN_OFFSET    0x08
-#define CYGNUS_GPIO_IN_TYPE_OFFSET   0x0c
+#define CYGNUS_GPIO_INT_TYPE_OFFSET  0x0c
 #define CYGNUS_GPIO_INT_DE_OFFSET    0x10
 #define CYGNUS_GPIO_INT_EDGE_OFFSET  0x14
 #define CYGNUS_GPIO_INT_MSK_OFFSET   0x18
@@ -264,7 +264,7 @@ static int cygnus_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 	}
 
 	spin_lock_irqsave(&chip->lock, flags);
-	cygnus_set_bit(chip, CYGNUS_GPIO_IN_TYPE_OFFSET, gpio,
+	cygnus_set_bit(chip, CYGNUS_GPIO_INT_TYPE_OFFSET, gpio,
 		       level_triggered);
 	cygnus_set_bit(chip, CYGNUS_GPIO_INT_DE_OFFSET, gpio, dual_edge);
 	cygnus_set_bit(chip, CYGNUS_GPIO_INT_EDGE_OFFSET, gpio,
@@ -750,9 +750,9 @@ static int cygnus_gpio_register_pinconf(struct cygnus_gpio *chip)
 	pctldesc->confops = &cygnus_pconf_ops;
 
 	chip->pctl = pinctrl_register(pctldesc, chip->dev, chip);
-	if (!chip->pctl) {
+	if (IS_ERR(chip->pctl)) {
 		dev_err(chip->dev, "unable to register pinctrl device\n");
-		return -EINVAL;
+		return PTR_ERR(chip->pctl);
 	}
 
 	return 0;
diff --git a/drivers/pinctrl/bcm/pinctrl-cygnus-mux.c b/drivers/pinctrl/bcm/pinctrl-cygnus-mux.c
index f9a9283caf81..9728f3db9126 100644
--- a/drivers/pinctrl/bcm/pinctrl-cygnus-mux.c
+++ b/drivers/pinctrl/bcm/pinctrl-cygnus-mux.c
@@ -989,9 +989,9 @@ static int cygnus_pinmux_probe(struct platform_device *pdev)
 
 	pinctrl->pctl = pinctrl_register(&cygnus_pinctrl_desc, &pdev->dev,
 			pinctrl);
-	if (!pinctrl->pctl) {
+	if (IS_ERR(pinctrl->pctl)) {
 		dev_err(&pdev->dev, "unable to register Cygnus IOMUX pinctrl\n");
-		return -EINVAL;
+		return PTR_ERR(pinctrl->pctl);
 	}
 
 	return 0;
diff --git a/drivers/pinctrl/berlin/berlin-bg2.c b/drivers/pinctrl/berlin/berlin-bg2.c
index b71a6fffef1b..b467e6e14f8a 100644
--- a/drivers/pinctrl/berlin/berlin-bg2.c
+++ b/drivers/pinctrl/berlin/berlin-bg2.c
@@ -20,24 +20,24 @@
 static const struct berlin_desc_group berlin2_soc_pinctrl_groups[] = {
 	/* G */
 	BERLIN_PINCTRL_GROUP("G0", 0x00, 0x1, 0x00,
-		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"),
+		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* SS0n */
 		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
 	BERLIN_PINCTRL_GROUP("G1", 0x00, 0x2, 0x01,
-		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"),
+		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* SS1n */
 		BERLIN_PINCTRL_FUNCTION(0x1, "gpio"),
 		BERLIN_PINCTRL_FUNCTION(0x2, "usb1")),
 	BERLIN_PINCTRL_GROUP("G2", 0x00, 0x2, 0x02,
 		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
-		BERLIN_PINCTRL_FUNCTION(0x1, "spi1"),
+		BERLIN_PINCTRL_FUNCTION(0x1, "spi1"), /* SS2n */
 		BERLIN_PINCTRL_FUNCTION(0x2, "pwm"),
 		BERLIN_PINCTRL_FUNCTION(0x3, "i2s0")),
 	BERLIN_PINCTRL_GROUP("G3", 0x00, 0x2, 0x04,
 		BERLIN_PINCTRL_FUNCTION(0x0, "soc"),
-		BERLIN_PINCTRL_FUNCTION(0x1, "spi1"),
+		BERLIN_PINCTRL_FUNCTION(0x1, "spi1"), /* SS3n */
 		BERLIN_PINCTRL_FUNCTION(0x2, "gpio"),
 		BERLIN_PINCTRL_FUNCTION(0x3, "i2s1")),
 	BERLIN_PINCTRL_GROUP("G4", 0x00, 0x2, 0x06,
-		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"),
+		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* CLK/SDI/SDO */
 		BERLIN_PINCTRL_FUNCTION(0x1, "gpio"),
 		BERLIN_PINCTRL_FUNCTION(0x2, "pwm")),
 	BERLIN_PINCTRL_GROUP("G5", 0x00, 0x3, 0x08,
@@ -163,15 +163,15 @@ static const struct berlin_desc_group berlin2_sysmgr_pinctrl_groups[] = {
 	/* GSM */
 	BERLIN_PINCTRL_GROUP("GSM0", 0x40, 0x2, 0x00,
 		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
-		BERLIN_PINCTRL_FUNCTION(0x1, "spi2"),
+		BERLIN_PINCTRL_FUNCTION(0x1, "spi2"), /* SS0n */
 		BERLIN_PINCTRL_FUNCTION(0x2, "eth1")),
 	BERLIN_PINCTRL_GROUP("GSM1", 0x40, 0x2, 0x02,
 		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
-		BERLIN_PINCTRL_FUNCTION(0x1, "spi2"),
+		BERLIN_PINCTRL_FUNCTION(0x1, "spi2"), /* SS1n */
 		BERLIN_PINCTRL_FUNCTION(0x2, "eth1")),
 	BERLIN_PINCTRL_GROUP("GSM2", 0x40, 0x2, 0x04,
 		BERLIN_PINCTRL_FUNCTION(0x0, "twsi2"),
-		BERLIN_PINCTRL_FUNCTION(0x1, "spi2")),
+		BERLIN_PINCTRL_FUNCTION(0x1, "spi2")), /* SS2n/SS3n */
 	BERLIN_PINCTRL_GROUP("GSM3", 0x40, 0x2, 0x06,
 		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
 		BERLIN_PINCTRL_FUNCTION(0x1, "uart0"),	/* CTS/RTS */
@@ -187,7 +187,7 @@ static const struct berlin_desc_group berlin2_sysmgr_pinctrl_groups[] = {
 		BERLIN_PINCTRL_FUNCTION(0x3, "twsi3")),
 	BERLIN_PINCTRL_GROUP("GSM6", 0x40, 0x2, 0x0c,
 		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
-		BERLIN_PINCTRL_FUNCTION(0x1, "spi2"),
+		BERLIN_PINCTRL_FUNCTION(0x1, "spi2"), /* CLK/SDO */
 		BERLIN_PINCTRL_FUNCTION(0x1, "clki")),
 	BERLIN_PINCTRL_GROUP("GSM7", 0x40, 0x1, 0x0e,
 		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
diff --git a/drivers/pinctrl/berlin/berlin-bg2cd.c b/drivers/pinctrl/berlin/berlin-bg2cd.c
index 19ac5a22c947..a8b98083a031 100644
--- a/drivers/pinctrl/berlin/berlin-bg2cd.c
+++ b/drivers/pinctrl/berlin/berlin-bg2cd.c
@@ -68,17 +68,17 @@ static const struct berlin_desc_group berlin2cd_soc_pinctrl_groups[] = {
 		BERLIN_PINCTRL_FUNCTION(0x1, "twsi1"),
 		BERLIN_PINCTRL_FUNCTION(0x2, "gpio")),
 	BERLIN_PINCTRL_GROUP("G8", 0x00, 0x3, 0x10,
-		BERLIN_PINCTRL_FUNCTION(0x0, "ss0"),
+		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* SS0n */
 		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
 	BERLIN_PINCTRL_GROUP("G9", 0x00, 0x3, 0x13,
 		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
-		BERLIN_PINCTRL_FUNCTION(0x1, "spi1"),
+		BERLIN_PINCTRL_FUNCTION(0x1, "spi1"), /* SS1n/SS2n */
 		BERLIN_PINCTRL_FUNCTION(0x2, "twsi0")),
 	BERLIN_PINCTRL_GROUP("G10", 0x00, 0x2, 0x16,
-		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"),
+		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* CLK */
 		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
 	BERLIN_PINCTRL_GROUP("G11", 0x00, 0x2, 0x18,
-		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"),
+		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* SDI/SDO */
 		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
 	BERLIN_PINCTRL_GROUP("G12", 0x00, 0x3, 0x1a,
 		BERLIN_PINCTRL_FUNCTION(0x0, "usb1"),
diff --git a/drivers/pinctrl/berlin/berlin-bg2q.c b/drivers/pinctrl/berlin/berlin-bg2q.c
index bd9662e57ad3..65fb8711a42f 100644
--- a/drivers/pinctrl/berlin/berlin-bg2q.c
+++ b/drivers/pinctrl/berlin/berlin-bg2q.c
@@ -59,21 +59,21 @@ static const struct berlin_desc_group berlin2q_soc_pinctrl_groups[] = {
 			BERLIN_PINCTRL_FUNCTION(0x2, "gpio"),
 			BERLIN_PINCTRL_FUNCTION(0x3, "eddc")),
 	BERLIN_PINCTRL_GROUP("G8", 0x18, 0x3, 0x18,
-			BERLIN_PINCTRL_FUNCTION(0x0, "spi1"),
+			BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* CLK/SDI/SDO */
 			BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
 	BERLIN_PINCTRL_GROUP("G9", 0x18, 0x3, 0x1b,
-			BERLIN_PINCTRL_FUNCTION(0x0, "spi1"),
+			BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* SS0n/SS1n */
 			BERLIN_PINCTRL_FUNCTION(0x1, "gpio"),
 			BERLIN_PINCTRL_FUNCTION(0x5, "sata")),
 	BERLIN_PINCTRL_GROUP("G10", 0x1c, 0x3, 0x00,
 			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
-			BERLIN_PINCTRL_FUNCTION(0x1, "spi1"),
+			BERLIN_PINCTRL_FUNCTION(0x1, "spi1"), /* SS2n */
 			BERLIN_PINCTRL_FUNCTION(0x3, "i2s0"),
 			BERLIN_PINCTRL_FUNCTION(0x4, "pwm"),
 			BERLIN_PINCTRL_FUNCTION(0x5, "sata")),
 	BERLIN_PINCTRL_GROUP("G11", 0x1c, 0x3, 0x03,
 			BERLIN_PINCTRL_FUNCTION(0x0, "jtag"),
-			BERLIN_PINCTRL_FUNCTION(0x1, "spi1"),
+			BERLIN_PINCTRL_FUNCTION(0x1, "spi1"), /* SS3n */
 			BERLIN_PINCTRL_FUNCTION(0x2, "gpio"),
 			BERLIN_PINCTRL_FUNCTION(0x3, "i2s1"),
 			BERLIN_PINCTRL_FUNCTION(0x4, "pwm"),
@@ -301,19 +301,19 @@ static const struct berlin_desc_group berlin2q_sysmgr_pinctrl_groups[] = {
 	/* GSM */
 	BERLIN_PINCTRL_GROUP("GSM0", 0x40, 0x2, 0x00,
 			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
-			BERLIN_PINCTRL_FUNCTION(0x1, "spi2"),
+			BERLIN_PINCTRL_FUNCTION(0x1, "spi2"), /* SS0n */
 			BERLIN_PINCTRL_FUNCTION(0x2, "eth1")),
 	BERLIN_PINCTRL_GROUP("GSM1", 0x40, 0x2, 0x02,
 			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
-			BERLIN_PINCTRL_FUNCTION(0x1, "spi2"),
+			BERLIN_PINCTRL_FUNCTION(0x1, "spi2"), /* SS1n */
 			BERLIN_PINCTRL_FUNCTION(0x2, "eth1")),
 	BERLIN_PINCTRL_GROUP("GSM2", 0x40, 0x2, 0x04,
 			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
-			BERLIN_PINCTRL_FUNCTION(0x1, "spi2"),
+			BERLIN_PINCTRL_FUNCTION(0x1, "spi2"), /* SS2n/SS3n */
 			BERLIN_PINCTRL_FUNCTION(0x2, "eddc")),
 	BERLIN_PINCTRL_GROUP("GSM3", 0x40, 0x2, 0x06,
 			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
-			BERLIN_PINCTRL_FUNCTION(0x1, "spi2"),
+			BERLIN_PINCTRL_FUNCTION(0x1, "spi2"), /* CLK/SDO */
 			BERLIN_PINCTRL_FUNCTION(0x2, "eddc"