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Commit bb9055b2 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'multiplatform-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc 

Pull late ARM Exynos multiplatform changes from Arnd Bergmann:
 "These continue the multiplatform support for exynos, adding support
  for building most of the essential drivers (clocksource, clk, irqchip)
  when combined with other platforms.  As a result, it should become
  really easy to add full multiplatform exynos support in 3.11, although
  we don't yet enable it for 3.10.

  The changes were not included in the earlier multiplatform series in
  order to avoid clashes with the other Exynos updates.

  This also includes work from Tomasz Figa to fix the pwm clocksource
  code on Exynos, which is not strictly required for multiplatform, but
  related to the other patches in this set and needed as a bug fix for
  at least one board."

* tag 'multiplatform-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (22 commits)
  ARM: dts: exynops4210: really add universal_c210 dts
  ARM: dts: exynos4210: Add basic dts file for universal_c210 board
  ARM: dts: exynos4: Add node for PWM device
  ARM: SAMSUNG: Do not register legacy timer interrupts on Exynos
  clocksource: samsung_pwm_timer: Work around rounding errors in clockevents core
  clocksource: samsung_pwm_timer: Correct programming of clock events
  clocksource: samsung_pwm_timer: Use proper clockevents max_delta
  clocksource: samsung_pwm_timer: Add support for non-DT platforms
  clocksource: samsung_pwm_timer: Drop unused samsung_pwm struct
  clocksource: samsung_pwm_timer: Keep all driver data in a structure
  clocksource: samsung_pwm_timer: Make PWM spinlock global
  clocksource: samsung_pwm_timer: Let platforms select the driver
  Documentation: Add device tree bindings for Samsung PWM timers
  clocksource: add samsung pwm timer driver
  irqchip: exynos: look up irq using irq_find_mapping
  irqchip: exynos: pass irq_base from platform
  irqchip: exynos: localize irq lookup for ATAGS
  irqchip: exynos: allocate combiner_data dynamically
  irqchip: exynos: pass max combiner number to combiner_init
  ARM: exynos: add missing properties for combiner IRQs
  ...
parents 1bf25e78 241a9871

Documentation/devicetree/bindings/pwm/pwm-samsung.txt

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* Samsung PWM timers



Samsung SoCs contain PWM timer blocks which can be used for system clock source

and clock event timers, as well as to drive SoC outputs with PWM signal. Each

PWM timer block provides 5 PWM channels (not all of them can drive physical

outputs - see SoC and board manual).



Be aware that the clocksource driver supports only uniprocessor systems.



Required properties:

- compatible : should be one of following:

    samsung,s3c2410-pwm - for 16-bit timers present on S3C24xx SoCs

    samsung,s3c6400-pwm - for 32-bit timers present on S3C64xx SoCs

    samsung,s5p6440-pwm - for 32-bit timers present on S5P64x0 SoCs

    samsung,s5pc100-pwm - for 32-bit timers present on S5PC100, S5PV210,

			  Exynos4210 rev0 SoCs

    samsung,exynos4210-pwm - for 32-bit timers present on Exynos4210,

                          Exynos4x12 and Exynos5250 SoCs

- reg: base address and size of register area

- interrupts: list of timer interrupts (one interrupt per timer, starting at

  timer 0)

- #pwm-cells: number of cells used for PWM specifier - must be 3

   the specifier format is as follows:

     - phandle to PWM controller node

     - index of PWM channel (from 0 to 4)

     - PWM signal period in nanoseconds

     - bitmask of optional PWM flags:

        0x1 - invert PWM signal



Optional properties:

- samsung,pwm-outputs: list of PWM channels used as PWM outputs on particular

    platform - an array of up to 5 elements being indices of PWM channels

    (from 0 to 4), the order does not matter.



Example:

	pwm@7f006000 {

		compatible = "samsung,s3c6400-pwm";

		reg = <0x7f006000 0x1000>;

		interrupt-parent = <&vic0>;

		interrupts = <23>, <24>, <25>, <27>, <28>;

		samsung,pwm-outputs = <0>, <1>;

		#pwm-cells = <3>;

	}

arch/arm/boot/dts/Makefile

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@@ -49,6 +49,7 @@ dtb-$(CONFIG_ARCH_DOVE) += dove-cm-a510.dtb \ 
dtb-$(CONFIG_ARCH_EXYNOS) += exynos4210-origen.dtb \

	exynos4210-smdkv310.dtb \

	exynos4210-trats.dtb \

	exynos4210-universal_c210.dtb \

	exynos4412-odroidx.dtb \

	exynos4412-smdk4412.dtb \

	exynos4412-origen.dtb \

arch/arm/boot/dts/exynos4.dtsi

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@@ -336,6 +336,14 @@ 
		status = "disabled";

	};



	pwm@139D0000 {

		compatible = "samsung,exynos4210-pwm";

		reg = <0x139D0000 0x1000>;

		interrupts = <0 37 0>, <0 38 0>, <0 39 0>, <0 40 0>, <0 41 0>;

		#pwm-cells = <2>;

		status = "disabled";

	};



	amba {

		#address-cells = <1>;

		#size-cells = <1>;

arch/arm/boot/dts/exynos4210-universal_c210.dts

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/*

 * Samsung's Exynos4210 based Universal C210 board device tree source

 *

 * Copyright (c) 2012-2013 Samsung Electronics Co., Ltd.

 *		http://www.samsung.com

 *

 * Device tree source file for Samsung's Universal C210 board which is based on

 * Samsung's Exynos4210 rev0 SoC.

 *

 * 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.

*/



/dts-v1/;

/include/ "exynos4210.dtsi"



/ {

	model = "Samsung Universal C210 based on Exynos4210 rev0";

	compatible = "samsung,universal_c210", "samsung,exynos4210";



	memory {

		reg =  <0x40000000 0x10000000

			0x50000000 0x10000000>;

	};



	chosen {

		bootargs = "console=ttySAC2,115200N8 root=/dev/mmcblk0p5 rw rootwait earlyprintk panic=5 maxcpus=1";

	};



	mct@10050000 {

		compatible = "none";

	};



	fixed-rate-clocks {

		xxti {

			compatible = "samsung,clock-xxti";

			clock-frequency = <0>;

		};



		xusbxti {

			compatible = "samsung,clock-xusbxti";

			clock-frequency = <24000000>;

		};

	};



	vemmc_reg: voltage-regulator {

	        compatible = "regulator-fixed";

		regulator-name = "VMEM_VDD_2_8V";

		regulator-min-microvolt = <2800000>;

		regulator-max-microvolt = <2800000>;

		gpio = <&gpe1 3 0>;

		enable-active-high;

	};



	sdhci_emmc: sdhci@12510000 {

		bus-width = <8>;

		non-removable;

		pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus8>;

		pinctrl-names = "default";

		vmmc-supply = <&vemmc_reg>;

		status = "okay";

	};



	serial@13800000 {

		status = "okay";

	};



	serial@13810000 {

		status = "okay";

	};



	serial@13820000 {

		status = "okay";

	};



	serial@13830000 {

		status = "okay";

	};



	gpio-keys {

		compatible = "gpio-keys";



		vol-up-key {

			gpios = <&gpx2 0 1>;

			linux,code = <115>;

			label = "volume up";

			debounce-interval = <1>;

		};



		vol-down-key {

			gpios = <&gpx2 1 1>;

			linux,code = <114>;

			label = "volume down";

			debounce-interval = <1>;

		};



		config-key {

			gpios = <&gpx2 2 1>;

			linux,code = <171>;

			label = "config";

			debounce-interval = <1>;

			gpio-key,wakeup;

		};



		camera-key {

			gpios = <&gpx2 3 1>;

			linux,code = <212>;

			label = "camera";

			debounce-interval = <1>;

		};



		power-key {

			gpios = <&gpx2 7 1>;

			linux,code = <116>;

			label = "power";

			debounce-interval = <1>;

			gpio-key,wakeup;

		};



		ok-key {

			gpios = <&gpx3 5 1>;

			linux,code = <352>;

			label = "ok";

			debounce-interval = <1>;

		};

	};



	tsp_reg: voltage-regulator {

	        compatible = "regulator-fixed";

		regulator-name = "TSP_2_8V";

		regulator-min-microvolt = <2800000>;

		regulator-max-microvolt = <2800000>;

		gpio = <&gpe2 3 0>;

		enable-active-high;

	};



	i2c@13890000 {

		samsung,i2c-sda-delay = <100>;

		samsung,i2c-slave-addr = <0x10>;

		samsung,i2c-max-bus-freq = <100000>;

		pinctrl-0 = <&i2c3_bus>;

		pinctrl-names = "default";

		status = "okay";



		tsp@4a {

			/* TBD: Atmel maXtouch touchscreen */

			reg = <0x4a>;

		};

	};



	i2c@138B0000 {

		samsung,i2c-sda-delay = <100>;

		samsung,i2c-slave-addr = <0x10>;

		samsung,i2c-max-bus-freq = <100000>;

		pinctrl-0 = <&i2c5_bus>;

		pinctrl-names = "default";

		status = "okay";



		vdd_arm_reg: pmic@60 {

			compatible = "maxim,max8952";

			reg = <0x60>;



			max8952,vid-gpios = <&gpx0 3 0>, <&gpx0 4 0>;

			max8952,default-mode = <0>;

			max8952,dvs-mode-microvolt = <1250000>, <1200000>,

							<1050000>, <950000>;

			max8952,sync-freq = <0>;

			max8952,ramp-speed = <0>;



			regulator-name = "vdd_arm";

			regulator-min-microvolt = <770000>;

			regulator-max-microvolt = <1400000>;

			regulator-always-on;

			regulator-boot-on;

		};



		pmic@66 {

			compatible = "national,lp3974";

			reg = <0x66>;



			max8998,pmic-buck1-default-dvs-idx = <0>;

			max8998,pmic-buck1-dvs-gpios = <&gpx0 5 0>,

							<&gpx0 6 0>;

			max8998,pmic-buck1-dvs-voltage = <1100000>, <1000000>,

							<1100000>, <1000000>;



			max8998,pmic-buck2-default-dvs-idx = <0>;

			max8998,pmic-buck2-dvs-gpio = <&gpe2 0 0>;

			max8998,pmic-buck2-dvs-voltage = <1200000>, <1100000>;



			regulators {

				ldo2_reg: LDO2 {

					regulator-name = "VALIVE_1.2V";

					regulator-min-microvolt = <1200000>;

					regulator-max-microvolt = <1200000>;

					regulator-always-on;

				};



				ldo3_reg: LDO3 {

					regulator-name = "VUSB+MIPI_1.1V";

					regulator-min-microvolt = <1100000>;

					regulator-max-microvolt = <1100000>;

				};



				ldo4_reg: LDO4 {

					regulator-name = "VADC_3.3V";

					regulator-min-microvolt = <3300000>;

					regulator-max-microvolt = <3300000>;

				};



				ldo5_reg: LDO5 {

					regulator-name = "VTF_2.8V";

					regulator-min-microvolt = <2800000>;

					regulator-max-microvolt = <2800000>;

				};



				ldo6_reg: LDO6 {

					regulator-name = "LDO6";

					regulator-min-microvolt = <2000000>;

					regulator-max-microvolt = <2000000>;

				};



				ldo7_reg: LDO7 {

					regulator-name = "VLCD+VMIPI_1.8V";

					regulator-min-microvolt = <1800000>;

					regulator-max-microvolt = <1800000>;

				};



				ldo8_reg: LDO8 {

					regulator-name = "VUSB+VDAC_3.3V";

					regulator-min-microvolt = <3300000>;

					regulator-max-microvolt = <3300000>;

				};



				ldo9_reg: LDO9 {

					regulator-name = "VCC_2.8V";

					regulator-min-microvolt = <2800000>;

					regulator-max-microvolt = <2800000>;

					regulator-always-on;

				};



				ldo10_reg: LDO10 {

					regulator-name = "VPLL_1.1V";

					regulator-min-microvolt = <1100000>;

					regulator-max-microvolt = <1100000>;

					regulator-boot-on;

					regulator-always-on;

				};



				ldo11_reg: LDO11 {

					regulator-name = "CAM_AF_3.3V";

					regulator-min-microvolt = <3300000>;

					regulator-max-microvolt = <3300000>;

				};



				ldo12_reg: LDO12 {

					regulator-name = "PS_2.8V";

					regulator-min-microvolt = <2800000>;

					regulator-max-microvolt = <2800000>;

				};



				ldo13_reg: LDO13 {

					regulator-name = "VHIC_1.2V";

					regulator-min-microvolt = <1200000>;

					regulator-max-microvolt = <1200000>;

				};



				ldo14_reg: LDO14 {

					regulator-name = "CAM_I_HOST_1.8V";

					regulator-min-microvolt = <1800000>;

					regulator-max-microvolt = <1800000>;

				};



				ldo15_reg: LDO15 {

					regulator-name = "CAM_S_DIG+FM33_CORE_1.2V";

					regulator-min-microvolt = <1200000>;

					regulator-max-microvolt = <1200000>;

				};



				ldo16_reg: LDO16 {

					regulator-name = "CAM_S_ANA_2.8V";

					regulator-min-microvolt = <2800000>;

					regulator-max-microvolt = <2800000>;

				};



				ldo17_reg: LDO17 {

					regulator-name = "VCC_3.0V_LCD";

					regulator-min-microvolt = <3000000>;

					regulator-max-microvolt = <3000000>;

				};



				buck1_reg: BUCK1 {

					regulator-name = "VINT_1.1V";

					regulator-min-microvolt = <750000>;

					regulator-max-microvolt = <1500000>;

					regulator-boot-on;

					regulator-always-on;

				};



				buck2_reg: BUCK2 {

					regulator-name = "VG3D_1.1V";

					regulator-min-microvolt = <750000>;

					regulator-max-microvolt = <1500000>;

					regulator-boot-on;

				};



				buck3_reg: BUCK3 {

					regulator-name = "VCC_1.8V";

					regulator-min-microvolt = <1800000>;

					regulator-max-microvolt = <1800000>;

					regulator-always-on;

				};



				buck4_reg: BUCK4 {

					regulator-name = "VMEM_1.2V";

					regulator-min-microvolt = <1200000>;

					regulator-max-microvolt = <1200000>;

					regulator-always-on;

				};



				ap32khz_reg: EN32KHz-AP {

					regulator-name = "32KHz AP";

					regulator-always-on;

				};



				cp32khz_reg: EN32KHz-CP {

					regulator-name = "32KHz CP";

				};



				vichg_reg: ENVICHG {

					regulator-name = "VICHG";

				};



				safeout1_reg: ESAFEOUT1 {

					regulator-name = "SAFEOUT1";

					regulator-always-on;

				};



				safeout2_reg: ESAFEOUT2 {

					regulator-name = "SAFEOUT2";

					regulator-boot-on;

				};

			};

		};

	};



	pwm@139D0000 {

		compatible = "samsung,s5p6440-pwm";

		status = "okay";

	};

};

arch/arm/boot/dts/exynos4210.dtsi

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@@ -41,6 +41,7 @@ 
	};



	combiner:interrupt-controller@10440000 {

		samsung,combiner-nr = <16>;

		interrupts = <0 0 0>, <0 1 0>, <0 2 0>, <0 3 0>,

			     <0 4 0>, <0 5 0>, <0 6 0>, <0 7 0>,

			     <0 8 0>, <0 9 0>, <0 10 0>, <0 11 0>,