Merge branch 'for-4.12/drivers' into for-next

  - compatible: should be one of:

    - "atmel,at91sam9rl-pwm"

    - "atmel,sama5d3-pwm"

    - "atmel,sama5d2-pwm"

  - reg: physical base address and length of the controller's registers

  - #pwm-cells: Should be 3. See pwm.txt in this directory for a

    description of the cells format.

- reset-names: Must include the following entries:

  - pwm

Optional properties:

============================

In some of the interface like PWM based regulator device, it is required

to configure the pins differently in different states, especially in suspend

state of the system. The configuration of pin is provided via the pinctrl

DT node as detailed in the pinctrl DT binding document

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

The PWM node will have following optional properties.

pinctrl-names:	Pin state names. Must be "default" and "sleep".

pinctrl-0:	phandle for the default/active state of pin configurations.

pinctrl-1:	phandle for the sleep state of pin configurations.

Example:

	pwm: pwm@7000a000 {

		resets = <&tegra_car 17>;

		reset-names = "pwm";

	};

Example with the pin configuration for suspend and resume:

=========================================================

Suppose pin PE7 (On Tegra210) interfaced with the regulator device and

it requires PWM output to be tristated when system enters suspend.

Following will be DT binding to achieve this:

#include <dt-bindings/pinctrl/pinctrl-tegra.h>

	pinmux@700008d4 {

		pwm_active_state: pwm_active_state {

                        pe7 {

                                nvidia,pins = "pe7";

                                nvidia,tristate = <TEGRA_PIN_DISABLE>;

			};

		};

		pwm_sleep_state: pwm_sleep_state {

                        pe7 {

                                nvidia,pins = "pe7";

                                nvidia,tristate = <TEGRA_PIN_ENABLE>;

			};

		};

	};

	pwm@7000a000 {

		/* Mandatory PWM properties */

		pinctrl-names = "default", "sleep";

		pinctrl-0 = <&pwm_active_state>;

		pinctrl-1 = <&pwm_sleep_state>;

	};

MediaTek PWM controller

Required properties:

 - compatible: should be "mediatek,<name>-pwm":

   - "mediatek,mt7623-pwm": found on mt7623 SoC.

 - reg: physical base address and length of the controller's registers.

 - #pwm-cells: must be 2. See pwm.txt in this directory for a description of

   the cell format.

 - clocks: phandle and clock specifier of the PWM reference clock.

 - clock-names: must contain the following:

   - "top": the top clock generator

   - "main": clock used by the PWM core

   - "pwm1-5": the five per PWM clocks

 - pinctrl-names: Must contain a "default" entry.

 - pinctrl-0: One property must exist for each entry in pinctrl-names.

   See pinctrl/pinctrl-bindings.txt for details of the property values.

Example:

	pwm0: pwm@11006000 {

		compatible = "mediatek,mt7623-pwm";

		reg = <0 0x11006000 0 0x1000>;

		#pwm-cells = <2>;

		clocks = <&topckgen CLK_TOP_PWM_SEL>,

			 <&pericfg CLK_PERI_PWM>,

			 <&pericfg CLK_PERI_PWM1>,

			 <&pericfg CLK_PERI_PWM2>,

			 <&pericfg CLK_PERI_PWM3>,

			 <&pericfg CLK_PERI_PWM4>,

			 <&pericfg CLK_PERI_PWM5>;

		clock-names = "top", "main", "pwm1", "pwm2",

			      "pwm3", "pwm4", "pwm5";

		pinctrl-names = "default";

		pinctrl-0 = <&pwm0_pins>;

	};

	  To compile this driver as a module, choose M here: the module

	  will be called pwm-mtk-disp.

config PWM_MEDIATEK

	tristate "MediaTek PWM support"

	depends on ARCH_MEDIATEK || COMPILE_TEST

	help

	  Generic PWM framework driver for Mediatek ARM SoC.

	  To compile this driver as a module, choose M here: the module

	  will be called pwm-mxs.

config PWM_MXS

	tristate "Freescale MXS PWM support"

	depends on ARCH_MXS && OF

obj-$(CONFIG_PWM_LPSS_PCI)	+= pwm-lpss-pci.o

obj-$(CONFIG_PWM_LPSS_PLATFORM)	+= pwm-lpss-platform.o

obj-$(CONFIG_PWM_MESON)		+= pwm-meson.o

obj-$(CONFIG_PWM_MEDIATEK)	+= pwm-mediatek.o

obj-$(CONFIG_PWM_MTK_DISP)	+= pwm-mtk-disp.o

obj-$(CONFIG_PWM_MXS)		+= pwm-mxs.o

obj-$(CONFIG_PWM_OMAP_DMTIMER)	+= pwm-omap-dmtimer.o