Merge tag 'pinctrl-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "An almost purely driver related set of changes with no major changes
  to the framework, only one patch adding an unlocked version of the
  pinctrl_find_gpio_range_from_pin() library call.

  New drivers:
   - ST Microelectronics STM32 MCU support: this is a non-MMU low-end
     platform for IoT things (etc).
   - Microchip PIC32 MCU support: same story as for STM32.

  New subdrivers:
   - Allwinner SunXi H3 R_PIO controller support.
   - Qualcomm IPQ4019 support.
   - MediaTek MT2701 and MT7623.
   - Allwinner A64

  Non-critical fixes:
   - gpio_disable_free() for the Vybrid.
   - pinctrl single: use a separate lockdep class.

  Misc:
   - Substantial cleanups and rewrites for the Super-H PFC driver and
     subdrivers.
   - Various fixes and cleanups, especially Paul Gortmakers work to make
     nonmodular drivers nonmodular"

* tag 'pinctrl-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (75 commits)
  pinctrl: single: Use a separate lockdep class
  drivers: pinctrl: add driver for Allwinner A64 SoC
  pinctrl: Broadcom Northstar2 pinctrl device tree bindings
  pinctrl: amlogic: Make driver independent from two-domain configuration
  pinctrl: amlogic: Separate some pin functions for Meson8 / Meson8b
  pinctrl: at91: use __maybe_unused to hide pm functions
  pinctrl: sh-pfc: core: don't open code of_device_get_match_data()
  pinctrl: uniphier: rename CONFIG options and file names
  pinctrl: sunxi: make A80 explicitly non-modular
  pinctrl: stm32: make explicitly non-modular
  pinctrl: sh-pfc: make explicitly non-modular
  pinctrl: meson: make explicitly non-modular
  pinctrl: pinctrl-mt6397 driver explicitly non-modular
  pinctrl: sunxi: does not need module.h
  pinctrl: pxa2xx: export symbols
  pinctrl: sunxi: Change mux setting on PI irq pins
  pinctrl: sunxi: Remove non existing irq's
  pinctrl: imx: attach iomuxc device to gpr syscon
  pinctrl-bcm2835: Fix cut-and-paste error in "pull" parsing
  pinctrl: lpc1850-scu: document nxp,gpio-pin-interrupt
  ...

Documentation/devicetree/bindings/gpio/microchip,pic32-gpio.txt

+* Microchip PIC32 GPIO devices (PIO).
+
+Required properties:
+ - compatible: "microchip,pic32mzda-gpio"
+ - reg: Base address and length for the device.
+ - interrupts: The port interrupt shared by all pins.
+ - gpio-controller: Marks the port as GPIO controller.
+ - #gpio-cells: Two. The first cell is the pin number and
+   the second cell is used to specify the gpio polarity as defined in
+   defined in <dt-bindings/gpio/gpio.h>:
+      0 = GPIO_ACTIVE_HIGH
+      1 = GPIO_ACTIVE_LOW
+      2 = GPIO_OPEN_DRAIN
+ - interrupt-controller: Marks the device node as an interrupt controller.
+ - #interrupt-cells: Two. The first cell is the GPIO number and second cell
+   is used to specify the trigger type as defined in
+   <dt-bindings/interrupt-controller/irq.h>:
+      IRQ_TYPE_EDGE_RISING
+      IRQ_TYPE_EDGE_FALLING
+      IRQ_TYPE_EDGE_BOTH
+ - clocks: Clock specifier (see clock bindings for details).
+ - microchip,gpio-bank: Specifies which bank a controller owns.
+ - gpio-ranges: Interaction with the PINCTRL subsystem.
+
+Example:
+
+/* PORTA */
+gpio0: gpio0@1f860000 {
+	compatible = "microchip,pic32mzda-gpio";
+	reg = <0x1f860000 0x100>;
+	interrupts = <118 IRQ_TYPE_LEVEL_HIGH>;
+	#gpio-cells = <2>;
+	gpio-controller;
+	interrupt-controller;
+	#interrupt-cells = <2>;
+	clocks = <&PBCLK4>;
+	microchip,gpio-bank = <0>;
+	gpio-ranges = <&pic32_pinctrl 0 0 16>;
+};
+
+keys {
+	...
+
+	button@sw1 {
+		label = "ESC";
+		linux,code = <1>;
+		gpios = <&gpio0 12 0>;
+	};
+};

Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt

@@ -21,6 +21,8 @@ Required properties:
   "allwinner,sun9i-a80-r-pinctrl"
   "allwinner,sun8i-a83t-pinctrl"
   "allwinner,sun8i-h3-pinctrl"
+  "allwinner,sun8i-h3-r-pinctrl"
+  "allwinner,sun50i-a64-pinctrl"
 
 - reg: Should contain the register physical address and length for the
   pin controller.

Documentation/devicetree/bindings/pinctrl/brcm,ns2-pinmux.txt

+Broadcom Northstar2 IOMUX Controller
+
+The Northstar2 IOMUX controller supports group based mux configuration. There
+are some individual pins that support modifying the pinconf parameters.
+
+Required properties:
+
+- compatible:
+    Must be "brcm,ns2-pinmux"
+
+- reg:
+    Define the base and range of the I/O address space that contains the
+    Northstar2 IOMUX and pin configuration registers.
+
+Properties in sub nodes:
+
+- function:
+    The mux function to select
+
+- groups:
+    The list of groups to select with a given function
+
+- pins:
+    List of pin names to change configuration
+
+The generic properties bias-disable, bias-pull-down, bias-pull-up,
+drive-strength, slew-rate, input-enable, input-disable are supported
+for some individual pins listed at the end.
+
+For more details, refer to
+Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+
+For example:
+
+	pinctrl: pinctrl@6501d130 {
+		compatible = "brcm,ns2-pinmux";
+		reg = <0x6501d130 0x08>,
+		      <0x660a0028 0x04>,
+		      <0x660009b0 0x40>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&nand_sel &uart3_rx &sdio0_d4>;
+
+		/* Select nand function */
+		nand_sel: nand_sel {
+			function = "nand";
+			groups = "nand_grp";
+		};
+
+		/* Pull up the uart3 rx pin */
+		uart3_rx: uart3_rx {
+			pins = "uart3_sin";
+			bias-pull-up;
+		};
+
+		/* Set the drive strength of sdio d4 pin */
+		sdio0_d4: sdio0_d4 {
+			pins = "sdio0_data4";
+			drive-strength = <8>;
+		};
+	};
+
+List of supported functions and groups in Northstar2:
+
+"nand": "nand_grp"
+
+"nor": "nor_data_grp", "nor_adv_grp", "nor_addr_0_3_grp", "nor_addr_4_5_grp",
+	"nor_addr_6_7_grp", "nor_addr_8_9_grp", "nor_addr_10_11_grp",
+	"nor_addr_12_15_grp"
+
+"gpio": "gpio_0_1_grp", "gpio_2_5_grp", "gpio_6_7_grp", "gpio_8_9_grp",
+	"gpio_10_11_grp", "gpio_12_13_grp", "gpio_14_17_grp", "gpio_18_19_grp",
+	"gpio_20_21_grp", "gpio_22_23_grp", "gpio_24_25_grp", "gpio_26_27_grp",
+	"gpio_28_29_grp", "gpio_30_31_grp"
+
+"pcie": "pcie_ab1_clk_wak_grp", "pcie_a3_clk_wak_grp", "pcie_b3_clk_wak_grp",
+	"pcie_b2_clk_wak_grp", "pcie_a2_clk_wak_grp"
+
+"uart0": "uart0_modem_grp", "uart0_rts_cts_grp", "uart0_in_out_grp"
+
+"uart1": "uart1_ext_clk_grp", "uart1_dcd_dsr_grp", "uart1_ri_dtr_grp",
+	"uart1_rts_cts_grp", "uart1_in_out_grp"
+
+"uart2": "uart2_rts_cts_grp"
+
+"pwm": "pwm_0_grp", "pwm_1_grp", "pwm_2_grp", "pwm_3_grp"
+
+
+List of pins that support pinconf parameters:
+
+"qspi_wp", "qspi_hold", "qspi_cs", "qspi_sck", "uart3_sin", "uart3_sout",
+"qspi_mosi", "qspi_miso", "spi0_fss", "spi0_rxd", "spi0_txd", "spi0_sck",
+"spi1_fss", "spi1_rxd", "spi1_txd", "spi1_sck", "sdio0_data7",
+"sdio0_emmc_rst", "sdio0_led_on", "sdio0_wp", "sdio0_data3", "sdio0_data4",
+"sdio0_data5", "sdio0_data6", "sdio0_cmd", "sdio0_data0", "sdio0_data1",
+"sdio0_data2", "sdio1_led_on", "sdio1_wp", "sdio0_cd_l", "sdio0_clk",
+"sdio1_data5", "sdio1_data6", "sdio1_data7", "sdio1_emmc_rst", "sdio1_data1",
+"sdio1_data2", "sdio1_data3", "sdio1_data4", "sdio1_cd_l", "sdio1_clk",
+"sdio1_cmd", "sdio1_data0", "ext_mdio_0", "ext_mdc_0", "usb3_p1_vbus_ppc",
+"usb3_p1_overcurrent", "usb3_p0_vbus_ppc", "usb3_p0_overcurrent",
+"usb2_presence_indication", "usb2_vbus_present", "usb2_vbus_ppc",
+"usb2_overcurrent", "sata_led1", "sata_led0"

Documentation/devicetree/bindings/pinctrl/microchip,pic32-pinctrl.txt

+* Microchip PIC32 Pin Controller
+
+Please refer to pinctrl-bindings.txt, ../gpio/gpio.txt, and
+../interrupt-controller/interrupts.txt for generic information regarding
+pin controller, GPIO, and interrupt bindings.
+
+PIC32 'pin configuration node' is a node of a group of pins which can be
+used for a specific device or function. This node represents configuraions of
+pins, optional function, and optional mux related configuration.
+
+Required properties for pin controller node:
+ - compatible: "microchip,pic32mada-pinctrl"
+ - reg: Address range of the pinctrl registers.
+ - clocks: Clock specifier (see clock bindings for details)
+
+Required properties for pin configuration sub-nodes:
+ - pins: List of pins to which the configuration applies.
+
+Optional properties for pin configuration sub-nodes:
+----------------------------------------------------
+ - function: Mux function for the specified pins.
+ - bias-pull-up: Enable weak pull-up.
+ - bias-pull-down: Enable weak pull-down.
+ - input-enable: Set the pin as an input.
+ - output-low: Set the pin as an output level low.
+ - output-high: Set the pin as an output level high.
+ - microchip,digital: Enable digital I/O.
+ - microchip,analog: Enable analog I/O.
+
+Example:
+
+pic32_pinctrl: pinctrl@1f801400{
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "microchip,pic32mzda-pinctrl";
+	reg = <0x1f801400 0x400>;
+	clocks = <&PBCLK1>;
+
+	pinctrl_uart2: pinctrl_uart2 {
+		uart2-tx {
+			pins = "G9";
+			function = "U2TX";
+			microchip,digital;
+			output-low;
+		};
+		uart2-rx {
+			pins = "B0";
+			function = "U2RX";
+			microchip,digital;
+			input-enable;
+		};
+	};
+};
+
+uart2: serial@1f822200 {
+	compatible = "microchip,pic32mzda-uart";
+	reg = <0x1f822200 0x50>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+};

Documentation/devicetree/bindings/pinctrl/nxp,lpc1850-scu.txt

@@ -22,6 +22,10 @@ The following generic nodes are supported:
  - input-schmitt-disable
  - slew-rate
 
+NXP specific properties:
+ - nxp,gpio-pin-interrupt : Assign pin to gpio pin interrupt controller
+			    irq number 0 to 7. See example below.
+
 Not all pins support all properties so either refer to the NXP 1850/4350
 user manual or the pin table in the pinctrl-lpc18xx driver for supported
 pin properties.
@@ -54,4 +58,14 @@ pinctrl: pinctrl@40086000 {
 			bias-disable;
 		};
 	};
+
+	gpio_joystick_pins: gpio-joystick-pins {
+		gpio_joystick_1_cfg {
+			pins =  "p9_0";
+			function = "gpio";
+			nxp,gpio-pin-interrupt = <0>;
+			input-enable;
+			bias-disable;
+		};
+	};
 };

Documentation/devicetree/bindings/pinctrl/pinctrl-mt65xx.txt

@@ -6,6 +6,7 @@ Required properties:
 - compatible: value should be one of the following.
 	"mediatek,mt2701-pinctrl", compatible with mt2701 pinctrl.
 	"mediatek,mt6397-pinctrl", compatible with mt6397 pinctrl.
+	"mediatek,mt7623-pinctrl", compatible with mt7623 pinctrl.
 	"mediatek,mt8127-pinctrl", compatible with mt8127 pinctrl.
 	"mediatek,mt8135-pinctrl", compatible with mt8135 pinctrl.
 	"mediatek,mt8173-pinctrl", compatible with mt8173 pinctrl.

Documentation/devicetree/bindings/pinctrl/qcom,ipq4019-pinctrl.txt

+Qualcomm Atheros IPQ4019 TLMM block
+
+This is the Top Level Mode Multiplexor block found on the Qualcomm IPQ8019
+platform, it provides pinctrl, pinmux, pinconf, and gpiolib facilities.
+
+Required properties:
+- compatible: "qcom,ipq4019-pinctrl"
+- reg: Should be the base address and length of the TLMM block.
+- interrupts: Should be the parent IRQ of the TLMM block.
+- interrupt-controller: Marks the device node as an interrupt controller.
+- #interrupt-cells: Should be two.
+- gpio-controller: Marks the device node as a GPIO controller.
+- #gpio-cells : Should be two.
+                The first cell is the gpio pin number and the
+                second cell is used for optional parameters.
+
+Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for
+a general description of GPIO and interrupt bindings.
+
+Please refer to pinctrl-bindings.txt in this directory for details of the
+common pinctrl bindings used by client devices, including the meaning of the
+phrase "pin configuration node".
+
+The pin configuration nodes act as a container for an abitrary number of
+subnodes. Each of these subnodes represents some desired configuration for a
+pin, a group, or a list of pins or groups. This configuration can include the
+mux function to select on those pin(s)/group(s), and various pin configuration
+parameters, such as pull-up, drive strength, etc.
+
+The name of each subnode is not important; all subnodes should be enumerated
+and processed purely based on their content.
+
+Each subnode only affects those parameters that are explicitly listed. In
+other words, a subnode that lists a mux function but no pin configuration
+parameters implies no information about any pin configuration parameters.
+Similarly, a pin subnode that describes a pullup parameter implies no
+information about e.g. the mux function.
+
+
+The following generic properties as defined in pinctrl-bindings.txt are valid
+to specify in a pin configuration subnode:
+ pins, function, bias-disable, bias-pull-down, bias-pull,up, drive-strength.
+
+Non-empty subnodes must specify the 'pins' property.
+Note that not all properties are valid for all pins.
+
+
+Valid values for qcom,pins are:
+  gpio0-gpio99
+    Supports mux, bias and drive-strength
+
+Valid values for qcom,function are:
+gpio, blsp_uart1, blsp_i2c0, blsp_i2c1, blsp_uart0, blsp_spi1, blsp_spi0
+
+Example:
+
+	tlmm: pinctrl@1000000 {
+		compatible = "qcom,ipq4019-pinctrl";
+		reg = <0x1000000 0x300000>;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		interrupts = <0 208 0>;
+
+		serial_pins: serial_pinmux {
+			mux {
+				pins = "gpio60", "gpio61";
+				function = "blsp_uart0";
+				bias-disable;
+			};
+		};
+	};

Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt

@@ -22,7 +22,7 @@ Required properties for iomux controller:
   - compatible: one of "rockchip,rk2928-pinctrl", "rockchip,rk3066a-pinctrl"
 		       "rockchip,rk3066b-pinctrl", "rockchip,rk3188-pinctrl"
 		       "rockchip,rk3228-pinctrl", "rockchip,rk3288-pinctrl"
-		       "rockchip,rk3368-pinctrl"
+		       "rockchip,rk3368-pinctrl", "rockchip,rk3399-pinctrl"
   - rockchip,grf: phandle referencing a syscon providing the
 	 "general register files"
 

Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt

+* STM32 GPIO and Pin Mux/Config controller
+
+STMicroelectronics's STM32 MCUs intregrate a GPIO and Pin mux/config hardware
+controller. It controls the input/output settings on the available pins and
+also provides ability to multiplex and configure the output of various on-chip
+controllers onto these pads.
+
+Pin controller node:
+Required properies:
+ - compatible: value should be one of the following:
+   (a) "st,stm32f429-pinctrl"
+ - #address-cells: The value of this property must be 1
+ - #size-cells	: The value of this property must be 1
+ - ranges	: defines mapping between pin controller node (parent) to
+   gpio-bank node (children).
+ - pins-are-numbered: Specify the subnodes are using numbered pinmux to
+   specify pins.
+
+GPIO controller/bank node:
+Required properties:
+ - gpio-controller : Indicates this device is a GPIO controller
+ - #gpio-cells	  : Should be two.
+			The first cell is the pin number
+			The second one is the polarity:
+				- 0 for active high
+				- 1 for active low
+ - reg		  : The gpio address range, relative to the pinctrl range
+ - clocks	  : clock that drives this bank
+ - st,bank-name	  : Should be a name string for this bank as specified in
+   the datasheet
+
+Optional properties:
+ - reset:	  : Reference to the reset controller
+
+Example:
+#include <dt-bindings/pinctrl/stm32f429-pinfunc.h>
+...
+
+	pin-controller {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "st,stm32f429-pinctrl";
+		ranges = <0 0x40020000 0x3000>;
+		pins-are-numbered;
+
+		gpioa: gpio@40020000 {
+			gpio-controller;
+			#gpio-cells = <2>;
+			reg = <0x0 0x400>;
+			resets = <&reset_ahb1 0>;
+			st,bank-name = "GPIOA";
+		};
+		...
+		pin-functions nodes follow...
+	};
+
+Contents of function subnode node:
+----------------------------------
+Subnode format
+A pinctrl node should contain at least one subnode representing the
+pinctrl group available on the machine. Each subnode will list the
+pins it needs, and how they should be configured, with regard to muxer
+configuration, pullups, drive, output high/low and output speed.
+
+    node {
+	pinmux = <PIN_NUMBER_PINMUX>;
+	GENERIC_PINCONFIG;
+    };
+
+Required properties:
+- pinmux: integer array, represents gpio pin number and mux setting.
+  Supported pin number and mux varies for different SoCs, and are defined in
+  dt-bindings/pinctrl/<soc>-pinfunc.h directly.
+  These defines are calculated as:
+    ((port * 16 + line) << 8) | function
+  With:
+    - port: The gpio port index (PA = 0, PB = 1, ..., PK = 11)
+    - line: The line offset within the port (PA0 = 0, PA1 = 1, ..., PA15 = 15)
+    - function: The function number, can be:
+      * 0 : GPIO
+      * 1 : Alternate Function 0
+      * 2 : Alternate Function 1
+      * 3 : Alternate Function 2
+      * ...
+      * 16 : Alternate Function 15
+      * 17 : Analog
+
+Optional properties:
+- GENERIC_PINCONFIG: is the generic pinconfig options to use.
+  Available options are:
+   - bias-disable,
+   - bias-pull-down,
+   - bias-pull-up,
+   - drive-push-pull,
+   - drive-open-drain,
+   - output-low
+   - output-high
+   - slew-rate = <x>, with x being:
+       < 0 > : Low speed
+       < 1 > : Medium speed
+       < 2 > : Fast speed
+       < 3 > : High speed
+
+Example:
+
+pin-controller {
+...
+	usart1_pins_a: usart1@0 {
+		pins1 {
+			pinmux = <STM32F429_PA9_FUNC_USART1_TX>;
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+		pins2 {
+			pinmux = <STM32F429_PA10_FUNC_USART1_RX>;
+			bias-disable;
+		};
+	};
+};
+
+&usart1 {
+	pinctrl-0 = <&usart1_pins_a>;
+	pinctrl-names = "default";
+	status = "okay";
+};

drivers/pinctrl/Kconfig

@@ -79,7 +79,7 @@ config PINCTRL_AT91PIO4
 	  controller available on sama5d2 SoC.
 
 config PINCTRL_AMD
-	bool "AMD GPIO pin control"
+	tristate "AMD GPIO pin control"
 	depends on GPIOLIB
 	select GPIOLIB_IRQCHIP
 	select PINCONF
@@ -168,37 +168,6 @@ config PINCTRL_ST
 	select PINCONF
 	select GPIOLIB_IRQCHIP
 
-config PINCTRL_TEGRA
-	bool
-	select PINMUX
-	select PINCONF
-
-config PINCTRL_TEGRA20
-	bool
-	select PINCTRL_TEGRA
-
-config PINCTRL_TEGRA30
-	bool
-	select PINCTRL_TEGRA
-
-config PINCTRL_TEGRA114
-	bool
-	select PINCTRL_TEGRA
-
-config PINCTRL_TEGRA124
-	bool
-	select PINCTRL_TEGRA
-
-config PINCTRL_TEGRA210
-	bool
-	select PINCTRL_TEGRA
-
-config PINCTRL_TEGRA_XUSB
-	def_bool y if ARCH_TEGRA
-	select GENERIC_PHY
-	select PINCONF
-	select PINMUX
-
 config PINCTRL_TZ1090
 	bool "Toumaz Xenif TZ1090 pin control driver"
 	depends on SOC_TZ1090
@@ -238,6 +207,23 @@ config PINCTRL_PALMAS
 	  open drain configuration for the Palmas series devices like
 	  TPS65913, TPS80036 etc.
 
+config PINCTRL_PIC32
+	bool "Microchip PIC32 pin controller driver"
+	depends on OF
+	depends on MACH_PIC32
+	select PINMUX
+	select GENERIC_PINCONF
+	select GPIOLIB_IRQCHIP
+	select OF_GPIO
+	help
+	  This is the pin controller and gpio driver for Microchip PIC32
+	  microcontrollers. This option is selected automatically when specific
+	  machine and arch are selected to build.
+
+config PINCTRL_PIC32MZDA
+	def_bool y if PIC32MZDA
+	select PINCTRL_PIC32
+
 config PINCTRL_ZYNQ
 	bool "Pinctrl driver for Xilinx Zynq"
 	depends on ARCH_ZYNQ
@@ -257,7 +243,9 @@ source "drivers/pinctrl/qcom/Kconfig"
 source "drivers/pinctrl/samsung/Kconfig"
 source "drivers/pinctrl/sh-pfc/Kconfig"
 source "drivers/pinctrl/spear/Kconfig"
+source "drivers/pinctrl/stm32/Kconfig"
 source "drivers/pinctrl/sunxi/Kconfig"
+source "drivers/pinctrl/tegra/Kconfig"
 source "drivers/pinctrl/uniphier/Kconfig"
 source "drivers/pinctrl/vt8500/Kconfig"
 source "drivers/pinctrl/mediatek/Kconfig"

drivers/pinctrl/Makefile

@@ -18,17 +18,12 @@ obj-$(CONFIG_PINCTRL_DIGICOLOR)	+= pinctrl-digicolor.o
 obj-$(CONFIG_PINCTRL_FALCON)	+= pinctrl-falcon.o
 obj-$(CONFIG_PINCTRL_MESON)	+= meson/
 obj-$(CONFIG_PINCTRL_PALMAS)	+= pinctrl-palmas.o
+obj-$(CONFIG_PINCTRL_PIC32)	+= pinctrl-pic32.o
 obj-$(CONFIG_PINCTRL_PISTACHIO)	+= pinctrl-pistachio.o
 obj-$(CONFIG_PINCTRL_ROCKCHIP)	+= pinctrl-rockchip.o
 obj-$(CONFIG_PINCTRL_SINGLE)	+= pinctrl-single.o
 obj-$(CONFIG_PINCTRL_SIRF)	+= sirf/
-obj-$(CONFIG_PINCTRL_TEGRA)	+= pinctrl-tegra.o
-obj-$(CONFIG_PINCTRL_TEGRA20)	+= pinctrl-tegra20.o
-obj-$(CONFIG_PINCTRL_TEGRA30)	+= pinctrl-tegra30.o
-obj-$(CONFIG_PINCTRL_TEGRA114)	+= pinctrl-tegra114.o
-obj-$(CONFIG_PINCTRL_TEGRA124)	+= pinctrl-tegra124.o
-obj-$(CONFIG_PINCTRL_TEGRA210)	+= pinctrl-tegra210.o
-obj-$(CONFIG_PINCTRL_TEGRA_XUSB)	+= pinctrl-tegra-xusb.o
+obj-$(CONFIG_PINCTRL_TEGRA)	+= tegra/
 obj-$(CONFIG_PINCTRL_TZ1090)	+= pinctrl-tz1090.o
 obj-$(CONFIG_PINCTRL_TZ1090_PDC)	+= pinctrl-tz1090-pdc.o
 obj-$(CONFIG_PINCTRL_U300)	+= pinctrl-u300.o
@@ -46,12 +41,13 @@ obj-y				+= freescale/
 obj-$(CONFIG_X86)		+= intel/
 obj-$(CONFIG_PINCTRL_MVEBU)	+= mvebu/
 obj-y				+= nomadik/
-obj-$(CONFIG_ARCH_PXA)		+= pxa/
+obj-$(CONFIG_PINCTRL_PXA)	+= pxa/
 obj-$(CONFIG_ARCH_QCOM)		+= qcom/
 obj-$(CONFIG_PINCTRL_SAMSUNG)	+= samsung/
 obj-$(CONFIG_PINCTRL_SH_PFC)	+= sh-pfc/
 obj-$(CONFIG_PINCTRL_SPEAR)	+= spear/
-obj-$(CONFIG_ARCH_SUNXI)	+= sunxi/
+obj-$(CONFIG_PINCTRL_STM32)	+= stm32/
+obj-$(CONFIG_PINCTRL_SUNXI)	+= sunxi/
 obj-$(CONFIG_PINCTRL_UNIPHIER)	+= uniphier/
 obj-$(CONFIG_ARCH_VT8500)	+= vt8500/
-obj-$(CONFIG_ARCH_MEDIATEK)	+= mediatek/
+obj-$(CONFIG_PINCTRL_MTK)	+= mediatek/

drivers/pinctrl/bcm/pinctrl-bcm2835.c

@@ -779,7 +779,7 @@ static int bcm2835_pctl_dt_node_to_map(struct pinctrl_dev *pctldev,
 		}
 		if (num_pulls) {
 			err = of_property_read_u32_index(np, "brcm,pull",
-					(num_funcs > 1) ? i : 0, &pull);
+					(num_pulls > 1) ? i : 0, &pull);
 			if (err)
 				goto out;
 			err = bcm2835_pctl_dt_node_to_map_pull(pc, np, pin,

drivers/pinctrl/core.c

@@ -481,18 +481,12 @@ int pinctrl_get_group_pins(struct pinctrl_dev *pctldev, const char *pin_group,
 }
 EXPORT_SYMBOL_GPL(pinctrl_get_group_pins);
 
-/**
- * pinctrl_find_gpio_range_from_pin() - locate the GPIO range for a pin
- * @pctldev: the pin controller device to look in
- * @pin: a controller-local number to find the range for
- */
 struct pinctrl_gpio_range *
-pinctrl_find_gpio_range_from_pin(struct pinctrl_dev *pctldev,
-				 unsigned int pin)
+pinctrl_find_gpio_range_from_pin_nolock(struct pinctrl_dev *pctldev,
+					unsigned int pin)
 {
 	struct pinctrl_gpio_range *range;
 
-	mutex_lock(&pctldev->mutex);
 	/* Loop over the ranges */
 	list_for_each_entry(range, &pctldev->gpio_ranges, node) {
 		/* Check if we're in the valid range */
@@ -500,15 +494,32 @@ pinctrl_find_gpio_range_from_pin(struct pinctrl_dev *pctldev,
 			int a;
 			for (a = 0; a < range->npins; a++) {
 				if (range->pins[a] == pin)
-					goto out;
+					return range;
 			}
 		} else if (pin >= range->pin_base &&
 			   pin < range->pin_base + range->npins)
-			goto out;
+			return range;
 	}
-	range = NULL;
-out:
+
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(pinctrl_find_gpio_range_from_pin_nolock);
+
+/**
+ * pinctrl_find_gpio_range_from_pin() - locate the GPIO range for a pin
+ * @pctldev: the pin controller device to look in
+ * @pin: a controller-local number to find the range for
+ */
+struct pinctrl_gpio_range *
+pinctrl_find_gpio_range_from_pin(struct pinctrl_dev *pctldev,
+				 unsigned int pin)
+{
+	struct pinctrl_gpio_range *range;
+
+	mutex_lock(&pctldev->mutex);
+	range = pinctrl_find_gpio_range_from_pin_nolock(pctldev, pin);
 	mutex_unlock(&pctldev->mutex);
+
 	return range;
 }
 EXPORT_SYMBOL_GPL(pinctrl_find_gpio_range_from_pin);

drivers/pinctrl/core.h

@@ -182,6 +182,10 @@ static inline struct pin_desc *pin_desc_get(struct pinctrl_dev *pctldev,
 	return radix_tree_lookup(&pctldev->pin_desc_tree, pin);
 }
 
+extern struct pinctrl_gpio_range *
+pinctrl_find_gpio_range_from_pin_nolock(struct pinctrl_dev *pctldev,
+					unsigned int pin);
+
 int pinctrl_register_map(struct pinctrl_map const *maps, unsigned num_maps,
 			 bool dup);
 void pinctrl_unregister_map(struct pinctrl_map const *map);

drivers/pinctrl/freescale/pinctrl-imx.c

@@ -15,6 +15,7 @@
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/mfd/syscon.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -24,6 +25,7 @@
 #include <linux/pinctrl/pinctrl.h>
 #include <linux/pinctrl/pinmux.h>
 #include <linux/slab.h>
+#include <linux/regmap.h>
 
 #include "../core.h"
 #include "pinctrl-imx.h"
@@ -341,6 +343,31 @@ static int imx_pmx_gpio_request_enable(struct pinctrl_dev *pctldev,
 	return 0;
 }
 
+static void imx_pmx_gpio_disable_free(struct pinctrl_dev *pctldev,
+			struct pinctrl_gpio_range *range, unsigned offset)
+{
+	struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
+	const struct imx_pinctrl_soc_info *info = ipctl->info;
+	const struct imx_pin_reg *pin_reg;
+	u32 reg;
+
+	/*
+	 * Only Vybrid has the input/output buffer enable flags (IBE/OBE)
+	 * They are part of the shared mux/conf register.
+	 */
+	if (!(info->flags & SHARE_MUX_CONF_REG))
+		return;
+
+	pin_reg = &info->pin_regs[offset];
+	if (pin_reg->mux_reg == -1)
+		return;
+
+	/* Clear IBE/OBE/PUE to disable the pin (Hi-Z) */
+	reg = readl(ipctl->base + pin_reg->mux_reg);
+	reg &= ~0x7;
+	writel(reg, ipctl->base + pin_reg->mux_reg);
+}
+
 static int imx_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
 	   struct pinctrl_gpio_range *range, unsigned offset, bool input)
 {
@@ -377,6 +404,7 @@ static const struct pinmux_ops imx_pmx_ops = {
 	.get_function_groups = imx_pmx_get_groups,
 	.set_mux = imx_pmx_set,
 	.gpio_request_enable = imx_pmx_gpio_request_enable,
+	.gpio_disable_free = imx_pmx_gpio_disable_free,
 	.gpio_set_direction = imx_pmx_gpio_set_direction,
 };
 
@@ -692,10 +720,12 @@ static int imx_pinctrl_probe_dt(struct platform_device *pdev,
 int imx_pinctrl_probe(struct platform_device *pdev,
 		      struct imx_pinctrl_soc_info *info)
 {
+	struct regmap_config config = { .name = "gpr" };
 	struct device_node *dev_np = pdev->dev.of_node;
 	struct device_node *np;
 	struct imx_pinctrl *ipctl;
 	struct resource *res;
+	struct regmap *gpr;
 	int ret, i;
 
 	if (!info || !info->pins || !info->npins) {
@@ -704,6 +734,12 @@ int imx_pinctrl_probe(struct platform_device *pdev,
 	}
 	info->dev = &pdev->dev;
 
+	if (info->gpr_compatible) {
+		gpr = syscon_regmap_lookup_by_compatible(info->gpr_compatible);
+		if (!IS_ERR(gpr))
+			regmap_attach_dev(&pdev->dev, gpr, &config);
+	}
+
 	/* Create state holders etc for this driver */
 	ipctl = devm_kzalloc(&pdev->dev, sizeof(*ipctl), GFP_KERNEL);
 	if (!ipctl)

drivers/pinctrl/freescale/pinctrl-imx.h

@@ -82,6 +82,7 @@ struct imx_pinctrl_soc_info {
 	struct imx_pmx_func *functions;
 	unsigned int nfunctions;
 	unsigned int flags;
+	const char *gpr_compatible;
 };
 
 #define SHARE_MUX_CONF_REG	0x1

drivers/pinctrl/freescale/pinctrl-imx50.c

@@ -389,6 +389,7 @@ static const struct pinctrl_pin_desc imx50_pinctrl_pads[] = {
 static struct imx_pinctrl_soc_info imx50_pinctrl_info = {
 	.pins = imx50_pinctrl_pads,
 	.npins = ARRAY_SIZE(imx50_pinctrl_pads),
+	.gpr_compatible = "fsl,imx50-iomuxc-gpr",
 };
 
 static const struct of_device_id imx50_pinctrl_of_match[] = {

drivers/pinctrl/freescale/pinctrl-imx53.c

@@ -452,6 +452,7 @@ static const struct pinctrl_pin_desc imx53_pinctrl_pads[] = {
 static struct imx_pinctrl_soc_info imx53_pinctrl_info = {
 	.pins = imx53_pinctrl_pads,
 	.npins = ARRAY_SIZE(imx53_pinctrl_pads),
+	.gpr_compatible = "fsl,imx53-iomuxc-gpr",
 };
 
 static const struct of_device_id imx53_pinctrl_of_match[] = {

drivers/pinctrl/freescale/pinctrl-imx6dl.c

@@ -458,6 +458,7 @@ static const struct pinctrl_pin_desc imx6dl_pinctrl_pads[] = {
 static struct imx_pinctrl_soc_info imx6dl_pinctrl_info = {
 	.pins = imx6dl_pinctrl_pads,
 	.npins = ARRAY_SIZE(imx6dl_pinctrl_pads),
+	.gpr_compatible = "fsl,imx6q-iomuxc-gpr",
 };
 
 static const struct of_device_id imx6dl_pinctrl_of_match[] = {

drivers/pinctrl/freescale/pinctrl-imx6q.c

@@ -464,6 +464,7 @@ static const struct pinctrl_pin_desc imx6q_pinctrl_pads[] = {
 static struct imx_pinctrl_soc_info imx6q_pinctrl_info = {
 	.pins = imx6q_pinctrl_pads,
 	.npins = ARRAY_SIZE(imx6q_pinctrl_pads),
+	.gpr_compatible = "fsl,imx6q-iomuxc-gpr",
 };
 
 static const struct of_device_id imx6q_pinctrl_of_match[] = {

drivers/pinctrl/freescale/pinctrl-imx6sl.c

@@ -364,6 +364,7 @@ static const struct pinctrl_pin_desc imx6sl_pinctrl_pads[] = {
 static struct imx_pinctrl_soc_info imx6sl_pinctrl_info = {
 	.pins = imx6sl_pinctrl_pads,
 	.npins = ARRAY_SIZE(imx6sl_pinctrl_pads),
+	.gpr_compatible = "fsl,imx6sl-iomuxc-gpr",
 };
 
 static const struct of_device_id imx6sl_pinctrl_of_match[] = {

drivers/pinctrl/freescale/pinctrl-imx6sx.c

@@ -368,6 +368,7 @@ static const struct pinctrl_pin_desc imx6sx_pinctrl_pads[] = {
 static struct imx_pinctrl_soc_info imx6sx_pinctrl_info = {
 	.pins = imx6sx_pinctrl_pads,
 	.npins = ARRAY_SIZE(imx6sx_pinctrl_pads),
+	.gpr_compatible = "fsl,imx6sx-iomuxc-gpr",
 };
 
 static const struct of_device_id imx6sx_pinctrl_of_match[] = {

drivers/pinctrl/freescale/pinctrl-imx6ul.c

@@ -284,6 +284,7 @@ static const struct pinctrl_pin_desc imx6ul_pinctrl_pads[] = {
 static struct imx_pinctrl_soc_info imx6ul_pinctrl_info = {
 	.pins = imx6ul_pinctrl_pads,
 	.npins = ARRAY_SIZE(imx6ul_pinctrl_pads),
+	.gpr_compatible = "fsl,imx6ul-iomuxc-gpr",
 };
 
 static struct of_device_id imx6ul_pinctrl_of_match[] = {

drivers/pinctrl/freescale/pinctrl-imx7d.c

@@ -359,6 +359,7 @@ static const struct pinctrl_pin_desc imx7d_lpsr_pinctrl_pads[] = {
 static struct imx_pinctrl_soc_info imx7d_pinctrl_info = {
 	.pins = imx7d_pinctrl_pads,
 	.npins = ARRAY_SIZE(imx7d_pinctrl_pads),
+	.gpr_compatible = "fsl,imx7d-iomuxc-gpr",
 };
 
 static struct imx_pinctrl_soc_info imx7d_lpsr_pinctrl_info = {

drivers/pinctrl/intel/pinctrl-intel.c

@@ -11,13 +11,9 @@
  */
 
 #include <linux/module.h>
-#include <linux/init.h>
 #include <linux/interrupt.h>
-#include <linux/acpi.h>
-#include <linux/gpio.h>
 #include <linux/gpio/driver.h>
 #include <linux/platform_device.h>
-#include <linux/pm.h>
 #include <linux/pinctrl/pinctrl.h>
 #include <linux/pinctrl/pinmux.h>
 #include <linux/pinctrl/pinconf.h>

drivers/pinctrl/mediatek/Kconfig

 if ARCH_MEDIATEK || COMPILE_TEST
 
-config PINCTRL_MTK_COMMON
+config PINCTRL_MTK
 	bool
 	depends on OF
 	select PINMUX
@@ -9,17 +9,29 @@ config PINCTRL_MTK_COMMON
 	select OF_GPIO
 
 # For ARMv7 SoCs
+config PINCTRL_MT2701
+	bool "Mediatek MT2701 pin control" if COMPILE_TEST && !MACH_MT2701
+	depends on OF
+	default MACH_MT2701
+	select PINCTRL_MTK
+
+config PINCTRL_MT7623
+	bool "Mediatek MT7623 pin control" if COMPILE_TEST && !MACH_MT7623
+	depends on OF
+	default MACH_MT7623
+	select PINCTRL_MTK_COMMON
+
 config PINCTRL_MT8135
 	bool "Mediatek MT8135 pin control" if COMPILE_TEST && !MACH_MT8135
 	depends on OF
 	default MACH_MT8135
-	select PINCTRL_MTK_COMMON
+	select PINCTRL_MTK
 
 config PINCTRL_MT8127
 	bool "Mediatek MT8127 pin control" if COMPILE_TEST && !MACH_MT8127
 	depends on OF
 	default MACH_MT8127
-	select PINCTRL_MTK_COMMON
+	select PINCTRL_MTK
 
 # For ARMv8 SoCs
 config PINCTRL_MT8173
@@ -27,13 +39,13 @@ config PINCTRL_MT8173
 	depends on OF
 	depends on ARM64 || COMPILE_TEST
 	default ARM64 && ARCH_MEDIATEK
-	select PINCTRL_MTK_COMMON
+	select PINCTRL_MTK
 
 # For PMIC
 config PINCTRL_MT6397
 	bool "Mediatek MT6397 pin control" if COMPILE_TEST && !MFD_MT6397
 	depends on OF
 	default MFD_MT6397
-	select PINCTRL_MTK_COMMON
+	select PINCTRL_MTK
 
 endif

drivers/pinctrl/mediatek/Makefile

 # Core
-obj-$(CONFIG_PINCTRL_MTK_COMMON)	+= pinctrl-mtk-common.o
+obj-y				+= pinctrl-mtk-common.o
 
 # SoC Drivers
-obj-$(CONFIG_PINCTRL_MT8135)		+= pinctrl-mt8135.o
-obj-$(CONFIG_PINCTRL_MT8127)		+= pinctrl-mt8127.o
-obj-$(CONFIG_PINCTRL_MT8173)		+= pinctrl-mt8173.o
-obj-$(CONFIG_PINCTRL_MT6397)		+= pinctrl-mt6397.o
+obj-$(CONFIG_PINCTRL_MT2701)	+= pinctrl-mt2701.o
+obj-$(CONFIG_PINCTRL_MT7623)	+= pinctrl-mt7623.o
+obj-$(CONFIG_PINCTRL_MT8135)	+= pinctrl-mt8135.o
+obj-$(CONFIG_PINCTRL_MT8127)	+= pinctrl-mt8127.o
+obj-$(CONFIG_PINCTRL_MT8173)	+= pinctrl-mt8173.o
+obj-$(CONFIG_PINCTRL_MT6397)	+= pinctrl-mt6397.o

drivers/pinctrl/mediatek/pinctrl-mt6397.c

@@ -12,7 +12,7 @@
  * GNU General Public License for more details.
  */
 
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -55,7 +55,6 @@ static const struct of_device_id mt6397_pctrl_match[] = {
 	{ .compatible = "mediatek,mt6397-pinctrl", },
 	{ }
 };
-MODULE_DEVICE_TABLE(of, mt6397_pctrl_match);
 
 static struct platform_driver mtk_pinctrl_driver = {
 	.probe = mt6397_pinctrl_probe,
@@ -69,9 +68,4 @@ static int __init mtk_pinctrl_init(void)
 {
 	return platform_driver_register(&mtk_pinctrl_driver);
 }
-
-module_init(mtk_pinctrl_init);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("MediaTek MT6397 Pinctrl Driver");
-MODULE_AUTHOR("Hongzhou Yang <hongzhou.yang@mediatek.com>");
+device_initcall(mtk_pinctrl_init);

drivers/pinctrl/mediatek/pinctrl-mt8127.c

@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  */
 
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -336,7 +336,6 @@ static const struct of_device_id mt8127_pctrl_match[] = {
 	{ .compatible = "mediatek,mt8127-pinctrl", },
 	{ }
 };
-MODULE_DEVICE_TABLE(of, mt8127_pctrl_match);
 
 static struct platform_driver mtk_pinctrl_driver = {
 	.probe = mt8127_pinctrl_probe,
@@ -350,9 +349,4 @@ static int __init mtk_pinctrl_init(void)
 {
 	return platform_driver_register(&mtk_pinctrl_driver);
 }
-
 arch_initcall(mtk_pinctrl_init);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("MediaTek MT8127 Pinctrl Driver");
-MODULE_AUTHOR("Yingjoe Chen <yingjoe.chen@mediatek.com>");

drivers/pinctrl/mediatek/pinctrl-mt8135.c

@@ -12,7 +12,7 @@
  * GNU General Public License for more details.
  */
 
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -351,7 +351,6 @@ static const struct of_device_id mt8135_pctrl_match[] = {
 	},
 	{ }
 };
-MODULE_DEVICE_TABLE(of, mt8135_pctrl_match);
 
 static struct platform_driver mtk_pinctrl_driver = {
 	.probe = mt8135_pinctrl_probe,
@@ -365,9 +364,4 @@ static int __init mtk_pinctrl_init(void)
 {
 	return platform_driver_register(&mtk_pinctrl_driver);
 }
-
 arch_initcall(mtk_pinctrl_init);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("MediaTek Pinctrl Driver");
-MODULE_AUTHOR("Hongzhou Yang <hongzhou.yang@mediatek.com>");

drivers/pinctrl/mediatek/pinctrl-mt8173.c

@@ -12,7 +12,7 @@
  * GNU General Public License for more details.
  */
 
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -378,7 +378,6 @@ static const struct of_device_id mt8173_pctrl_match[] = {
 	},
 	{ }
 };
-MODULE_DEVICE_TABLE(of, mt8173_pctrl_match);
 
 static struct platform_driver mtk_pinctrl_driver = {
 	.probe = mt8173_pinctrl_probe,
@@ -393,9 +392,4 @@ static int __init mtk_pinctrl_init(void)
 {
 	return platform_driver_register(&mtk_pinctrl_driver);
 }
-
 arch_initcall(mtk_pinctrl_init);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("MediaTek Pinctrl Driver");
-MODULE_AUTHOR("Hongzhou Yang <hongzhou.yang@mediatek.com>");

drivers/pinctrl/mediatek/pinctrl-mtk-common.c

@@ -43,10 +43,13 @@
 
 #define MAX_GPIO_MODE_PER_REG 5
 #define GPIO_MODE_BITS        3
+#define GPIO_MODE_PREFIX "GPIO"
 
 static const char * const mtk_gpio_functions[] = {
 	"func0", "func1", "func2", "func3",
 	"func4", "func5", "func6", "func7",
+	"func8", "func9", "func10", "func11",
+	"func12", "func13", "func14", "func15",
 };
 
 /*
@@ -81,6 +84,9 @@ static int mtk_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
 	reg_addr = mtk_get_port(pctl, offset) + pctl->devdata->dir_offset;
 	bit = BIT(offset & 0xf);
 
+	if (pctl->devdata->spec_dir_set)
+		pctl->devdata->spec_dir_set(&reg_addr, offset);
+
 	if (input)
 		/* Different SoC has different alignment offset. */
 		reg_addr = CLR_ADDR(reg_addr, pctl);
@@ -677,9 +683,14 @@ static int mtk_pmx_set_mode(struct pinctrl_dev *pctldev,
 	unsigned int mask = (1L << GPIO_MODE_BITS) - 1;
 	struct mtk_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
 
+	if (pctl->devdata->spec_pinmux_set)
+		pctl->devdata->spec_pinmux_set(mtk_get_regmap(pctl, pin),
+					pin, mode);
+
 	reg_addr = ((pin / MAX_GPIO_MODE_PER_REG) << pctl->devdata->port_shf)
 			+ pctl->devdata->pinmux_offset;
 
+	mode &= mask;
 	bit = pin % MAX_GPIO_MODE_PER_REG;
 	mask <<= (GPIO_MODE_BITS * bit);
 	val = (mode << (GPIO_MODE_BITS * bit));
@@ -725,12 +736,48 @@ static int mtk_pmx_set_mux(struct pinctrl_dev *pctldev,
 	return 0;
 }
 
+static int mtk_pmx_find_gpio_mode(struct mtk_pinctrl *pctl,
+				unsigned offset)
+{
+	const struct mtk_desc_pin *pin = pctl->devdata->pins + offset;
+	const struct mtk_desc_function *func = pin->functions;
+
+	while (func && func->name) {
+		if (!strncmp(func->name, GPIO_MODE_PREFIX,
+			sizeof(GPIO_MODE_PREFIX)-1))
+			return func->muxval;
+		func++;
+	}
+	return -EINVAL;
+}
+
+static int mtk_pmx_gpio_request_enable(struct pinctrl_dev *pctldev,
+				    struct pinctrl_gpio_range *range,
+				    unsigned offset)
+{
+	int muxval;
+	struct mtk_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
+
+	muxval = mtk_pmx_find_gpio_mode(pctl, offset);
+
+	if (muxval < 0) {
+		dev_err(pctl->dev, "invalid gpio pin %d.\n", offset);
+		return -EINVAL;
+	}
+
+	mtk_pmx_set_mode(pctldev, offset, muxval);
+	mtk_pconf_set_ies_smt(pctl, offset, 1, PIN_CONFIG_INPUT_ENABLE);
+
+	return 0;
+}
+
 static const struct pinmux_ops mtk_pmx_ops = {
 	.get_functions_count	= mtk_pmx_get_funcs_cnt,
 	.get_function_name	= mtk_pmx_get_func_name,
 	.get_function_groups	= mtk_pmx_get_func_groups,
 	.set_mux		= mtk_pmx_set_mux,
 	.gpio_set_direction	= mtk_pmx_gpio_set_direction,
+	.gpio_request_enable	= mtk_pmx_gpio_request_enable,
 };
 
 static int mtk_gpio_direction_input(struct gpio_chip *chip,
@@ -756,6 +803,10 @@ static int mtk_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
 
 	reg_addr =  mtk_get_port(pctl, offset) + pctl->devdata->dir_offset;
 	bit = BIT(offset & 0xf);
+
+	if (pctl->devdata->spec_dir_set)
+		pctl->devdata->spec_dir_set(&reg_addr, offset);
+
 	regmap_read(pctl->regmap1, reg_addr, &read_val);
 	return !(read_val & bit);
 }
@@ -814,6 +865,10 @@ static int mtk_pinctrl_irq_request_resources(struct irq_data *d)
 
 	/* set mux to INT mode */
 	mtk_pmx_set_mode(pctl->pctl_dev, pin->pin.number, pin->eint.eintmux);
+	/* set gpio direction to input */
+	mtk_pmx_gpio_set_direction(pctl->pctl_dev, NULL, pin->pin.number, true);
+	/* set input-enable */
+	mtk_pconf_set_ies_smt(pctl, pin->pin.number, 1, PIN_CONFIG_INPUT_ENABLE);
 
 	return 0;
 }

drivers/pinctrl/mediatek/pinctrl-mtk-common.h

@@ -209,7 +209,14 @@ struct mtk_eint_offsets {
  * means when user set smt, input enable is set at the same time. So they
  * also need special control. If special control is success, this should
  * return 0, otherwise return non-zero value.
- *
+ * @spec_pinmux_set: In some cases, there are two pinmux functions share
+ * the same value in the same segment of pinmux control register. If user
+ * want to use one of the two functions, they need an extra bit setting to
+ * select the right one.
+ * @spec_dir_set: In very few SoCs, direction control registers are not
+ * arranged continuously, they may be cut to parts. So they need special
+ * dir setting.
+
  * @dir_offset: The direction register offset.
  * @pullen_offset: The pull-up/pull-down enable register offset.
  * @pinmux_offset: The pinmux register offset.
@@ -234,6 +241,9 @@ struct mtk_pinctrl_devdata {
 			unsigned char align, bool isup, unsigned int arg);
 	int (*spec_ies_smt_set)(struct regmap *reg, unsigned int pin,
 			unsigned char align, int value, enum pin_config_param arg);
+	void (*spec_pinmux_set)(struct regmap *reg, unsigned int pin,
+			unsigned int mode);
+	void (*spec_dir_set)(unsigned int *reg_addr, unsigned int pin);
 	unsigned int dir_offset;
 	unsigned int ies_offset;
 	unsigned int smt_offset;

drivers/pinctrl/meson/pinctrl-meson.c

@@ -49,7 +49,6 @@
 #include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/io.h>
-#include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/pinctrl/pinconf-generic.h>
@@ -104,15 +103,13 @@ static int meson_get_domain_and_bank(struct meson_pinctrl *pc, unsigned int pin,
 				     struct meson_bank **bank)
 {
 	struct meson_domain *d;
-	int i;
 
-	for (i = 0; i < pc->data->num_domains; i++) {
-		d = &pc->domains[i];
-		if (pin >= d->data->pin_base &&
-		    pin < d->data->pin_base + d->data->num_pins) {
-			*domain = d;
-			return meson_get_bank(d, pin, bank);
-		}
+	d = pc->domain;
+
+	if (pin >= d->data->pin_base &&
+	    pin < d->data->pin_base + d->data->num_pins) {
+		*domain = d;
+		return meson_get_bank(d, pin, bank);
 	}
 
 	return -EINVAL;
@@ -204,7 +201,7 @@ static void meson_pmx_disable_other_groups(struct meson_pinctrl *pc,
 		for (j = 0; j < group->num_pins; j++) {
 			if (group->pins[j] == pin) {
 				/* We have found a group using the pin */
-				domain = &pc->domains[group->domain];
+				domain = pc->domain;
 				regmap_update_bits(domain->reg_mux,
 						   group->reg * 4,
 						   BIT(group->bit), 0);
@@ -219,7 +216,7 @@ static int meson_pmx_set_mux(struct pinctrl_dev *pcdev, unsigned func_num,
 	struct meson_pinctrl *pc = pinctrl_dev_get_drvdata(pcdev);
 	struct meson_pmx_func *func = &pc->data->funcs[func_num];
 	struct meson_pmx_group *group = &pc->data->groups[group_num];
-	struct meson_domain *domain = &pc->domains[group->domain];
+	struct meson_domain *domain = pc->domain;
 	int i, ret = 0;
 
 	dev_dbg(pc->dev, "enable function %s, group %s\n", func->name,
@@ -537,76 +534,67 @@ static int meson_gpio_get(struct gpio_chip *chip, unsigned gpio)
 
 static const struct of_device_id meson_pinctrl_dt_match[] = {
 	{
-		.compatible = "amlogic,meson8-pinctrl",
-		.data = &meson8_pinctrl_data,
+		.compatible = "amlogic,meson8-cbus-pinctrl",
+		.data = &meson8_cbus_pinctrl_data,
+	},
+	{
+		.compatible = "amlogic,meson8b-cbus-pinctrl",
+		.data = &meson8b_cbus_pinctrl_data,
+	},
+	{
+		.compatible = "amlogic,meson8-aobus-pinctrl",
+		.data = &meson8_aobus_pinctrl_data,
 	},
 	{
-		.compatible = "amlogic,meson8b-pinctrl",
-		.data = &meson8b_pinctrl_data,
+		.compatible = "amlogic,meson8b-aobus-pinctrl",
+		.data = &meson8b_aobus_pinctrl_data,
 	},
 	{ },
 };
-MODULE_DEVICE_TABLE(of, meson_pinctrl_dt_match);
 
 static int meson_gpiolib_register(struct meson_pinctrl *pc)
 {
 	struct meson_domain *domain;
-	int i, ret;
+	int ret;
 
-	for (i = 0; i < pc->data->num_domains; i++) {
-		domain = &pc->domains[i];
-
-		domain->chip.label = domain->data->name;
-		domain->chip.parent = pc->dev;
-		domain->chip.request = meson_gpio_request;
-		domain->chip.free = meson_gpio_free;
-		domain->chip.direction_input = meson_gpio_direction_input;
-		domain->chip.direction_output = meson_gpio_direction_output;
-		domain->chip.get = meson_gpio_get;
-		domain->chip.set = meson_gpio_set;
-		domain->chip.base = domain->data->pin_base;
-		domain->chip.ngpio = domain->data->num_pins;
-		domain->chip.can_sleep = false;
-		domain->chip.of_node = domain->of_node;
-		domain->chip.of_gpio_n_cells = 2;
-
-		ret = gpiochip_add_data(&domain->chip, domain);
-		if (ret) {
-			dev_err(pc->dev, "can't add gpio chip %s\n",
-				domain->data->name);
-			goto fail;
-		}
+	domain = pc->domain;
+
+	domain->chip.label = domain->data->name;
+	domain->chip.parent = pc->dev;
+	domain->chip.request = meson_gpio_request;
+	domain->chip.free = meson_gpio_free;
+	domain->chip.direction_input = meson_gpio_direction_input;
+	domain->chip.direction_output = meson_gpio_direction_output;
+	domain->chip.get = meson_gpio_get;
+	domain->chip.set = meson_gpio_set;
+	domain->chip.base = domain->data->pin_base;
+	domain->chip.ngpio = domain->data->num_pins;
+	domain->chip.can_sleep = false;
+	domain->chip.of_node = domain->of_node;
+	domain->chip.of_gpio_n_cells = 2;
+
+	ret = gpiochip_add_data(&domain->chip, domain);
+	if (ret) {
+		dev_err(pc->dev, "can't add gpio chip %s\n",
+			domain->data->name);
+		goto fail;
+	}
 
-		ret = gpiochip_add_pin_range(&domain->chip, dev_name(pc->dev),
-					     0, domain->data->pin_base,
-					     domain->chip.ngpio);
-		if (ret) {
-			dev_err(pc->dev, "can't add pin range\n");
-			goto fail;
-		}
+	ret = gpiochip_add_pin_range(&domain->chip, dev_name(pc->dev),
+				     0, domain->data->pin_base,
+				     domain->chip.ngpio);
+	if (ret) {
+		dev_err(pc->dev, "can't add pin range\n");
+		goto fail;
 	}
 
 	return 0;
 fail:
-	for (i--; i >= 0; i--)
-		gpiochip_remove(&pc->domains[i].chip);
+	gpiochip_remove(&pc->domain->chip);
 
 	return ret;
 }
 
-static struct meson_domain_data *meson_get_domain_data(struct meson_pinctrl *pc,
-						       struct device_node *np)
-{
-	int i;
-
-	for (i = 0; i < pc->data->num_domains; i++) {
-		if (!strcmp(np->name, pc->data->domain_data[i].name))
-			return &pc->data->domain_data[i];
-	}
-
-	return NULL;
-}
-
 static struct regmap_config meson_regmap_config = {
 	.reg_bits = 32,
 	.val_bits = 32,
@@ -643,7 +631,7 @@ static int meson_pinctrl_parse_dt(struct meson_pinctrl *pc,
 {
 	struct device_node *np;
 	struct meson_domain *domain;
-	int i = 0, num_domains = 0;
+	int num_domains = 0;
 
 	for_each_child_of_node(node, np) {
 		if (!of_find_property(np, "gpio-controller", NULL))
@@ -651,29 +639,22 @@ static int meson_pinctrl_parse_dt(struct meson_pinctrl *pc,
 		num_domains++;
 	}
 
-	if (num_domains != pc->data->num_domains) {
+	if (num_domains != 1) {
 		dev_err(pc->dev, "wrong number of subnodes\n");
 		return -EINVAL;
 	}
 
-	pc->domains = devm_kzalloc(pc->dev, num_domains *
-				   sizeof(struct meson_domain), GFP_KERNEL);
-	if (!pc->domains)
+	pc->domain = devm_kzalloc(pc->dev, sizeof(struct meson_domain), GFP_KERNEL);
+	if (!pc->domain)
 		return -ENOMEM;
 
+	domain = pc->domain;
+	domain->data = pc->data->domain_data;
+
 	for_each_child_of_node(node, np) {
 		if (!of_find_property(np, "gpio-controller", NULL))
 			continue;
 
-		domain = &pc->domains[i];
-
-		domain->data = meson_get_domain_data(pc, np);
-		if (!domain->data) {
-			dev_err(pc->dev, "domain data not found for node %s\n",
-				np->name);
-			return -ENODEV;
-		}
-
 		domain->of_node = np;
 
 		domain->reg_mux = meson_map_resource(pc, np, "mux");
@@ -699,7 +680,7 @@ static int meson_pinctrl_parse_dt(struct meson_pinctrl *pc,
 			return PTR_ERR(domain->reg_gpio);
 		}
 
-		i++;
+		break;
 	}
 
 	return 0;
@@ -718,7 +699,7 @@ static int meson_pinctrl_probe(struct platform_device *pdev)
 
 	pc->dev = dev;
 	match = of_match_node(meson_pinctrl_dt_match, pdev->dev.of_node);
-	pc->data = (struct meson_pinctrl_data *)match->data;
+	pc->data = (struct meson_pinctrl_data *) match->data;
 
 	ret = meson_pinctrl_parse_dt(pc, pdev->dev.of_node);
 	if (ret)
@@ -754,8 +735,4 @@ static struct platform_driver meson_pinctrl_driver = {
 		.of_match_table = meson_pinctrl_dt_match,
 	},
 };
-module_platform_driver(meson_pinctrl_driver);
-
-MODULE_AUTHOR("Beniamino Galvani <b.galvani@gmail.com>");
-MODULE_DESCRIPTION("Amlogic Meson pinctrl driver");
-MODULE_LICENSE("GPL v2");
+builtin_platform_driver(meson_pinctrl_driver);

drivers/pinctrl/nomadik/pinctrl-nomadik-stn8815.c

@@ -287,6 +287,10 @@ static const unsigned i2c0_a_1_pins[] = { STN8815_PIN_D3, STN8815_PIN_D2 };
 /* Altfunction B */
 static const unsigned u1_b_1_pins[] = { STN8815_PIN_B16, STN8815_PIN_A16 };
 static const unsigned i2cusb_b_1_pins[] = { STN8815_PIN_C21, STN8815_PIN_C20 };
+static const unsigned clcd_16_23_b_1_pins[] = { STN8815_PIN_AB6,
+	STN8815_PIN_AA6, STN8815_PIN_Y6, STN8815_PIN_Y5, STN8815_PIN_AA5,
+	STN8815_PIN_AB5, STN8815_PIN_AB4, STN8815_PIN_Y4 };
+
 
 #define STN8815_PIN_GROUP(a, b) { .name = #a, .pins = a##_pins,		\
 			.npins = ARRAY_SIZE(a##_pins), .altsetting = b }
@@ -302,6 +306,7 @@ static const struct nmk_pingroup nmk_stn8815_groups[] = {
 	STN8815_PIN_GROUP(i2c0_a_1, NMK_GPIO_ALT_A),
 	STN8815_PIN_GROUP(u1_b_1, NMK_GPIO_ALT_B),
 	STN8815_PIN_GROUP(i2cusb_b_1, NMK_GPIO_ALT_B),
+	STN8815_PIN_GROUP(clcd_16_23_b_1, NMK_GPIO_ALT_B),
 };
 
 /* We use this macro to define the groups applicable to a function */
@@ -314,6 +319,7 @@ STN8815_FUNC_GROUPS(u1, "u1_a_1", "u1_b_1");
 STN8815_FUNC_GROUPS(i2c1, "i2c1_a_1");
 STN8815_FUNC_GROUPS(i2c0, "i2c0_a_1");
 STN8815_FUNC_GROUPS(i2cusb, "i2cusb_b_1");
+STN8815_FUNC_GROUPS(clcd, "clcd_16_23_b_1");
 
 #define FUNCTION(fname)					\
 	{						\
@@ -329,6 +335,7 @@ static const struct nmk_function nmk_stn8815_functions[] = {
 	FUNCTION(i2c1),
 	FUNCTION(i2c0),
 	FUNCTION(i2cusb),
+	FUNCTION(clcd),
 };
 
 static const struct nmk_pinctrl_soc_data nmk_stn8815_soc = {

drivers/pinctrl/pinctrl-amd.c

@@ -753,8 +753,8 @@ static int amd_gpio_probe(struct platform_device *pdev)
 
 	gpio_dev->base = devm_ioremap_nocache(&pdev->dev, res->start,
 						resource_size(res));
-	if (IS_ERR(gpio_dev->base))
-		return PTR_ERR(gpio_dev->base);
+	if (!gpio_dev->base)
+		return -ENOMEM;
 
 	irq_base = platform_get_irq(pdev, 0);
 	if (irq_base < 0) {

drivers/pinctrl/stm32/Makefile

+# Core
+obj-$(CONFIG_PINCTRL_STM32) += pinctrl-stm32.o
+
+# SoC Drivers
+obj-$(CONFIG_PINCTRL_STM32F429)	+= pinctrl-stm32f429.o