Commit 7c558af5 authored by Jonathan Bakker's avatar Jonathan Bakker Committed by Krzysztof Kozlowski
Browse files

ARM: dts: s5pv210: Add support for GP2A light sensor on Aries 



Aries boards have a GP2A light/proximity sensor attached over i2c-gpio.
As the chip outputs a current and the board has no current ADC, a
current shunt resistor and a voltage ADC are used.

Signed-off-by: default avatarJonathan Bakker <xc-racer2@live.ca>
Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
parent 99bb2032

arch/arm/boot/dts/s5pv210-aries.dtsi

+48 −2
Original line number Diff line number Diff line
@@ -69,6 +69,18 @@ 
		pinctrl-0 = <&touchkey_vdd_ena>;

	};



	gp2a_vled: regulator-fixed-2 {

		compatible = "regulator-fixed";

		regulator-name = "VLED";

		enable-active-high;

		gpio = <&gpj1 4 GPIO_ACTIVE_HIGH>;

		regulator-min-microvolt = <2800000>;

		regulator-max-microvolt = <2800000>;



		pinctrl-names = "default";

		pinctrl-0 = <&gp2a_power>;

	};



	wifi_pwrseq: wifi-pwrseq {

		compatible = "mmc-pwrseq-simple";

		reset-gpios = <&gpg1 2 GPIO_ACTIVE_LOW>;
@@ -468,9 +480,21 @@ 
		pinctrl-names = "default";

		pinctrl-0 = <&prox_i2c_pins>;



		status = "disabled";

		light-sensor@44 {

			compatible = "sharp,gp2ap002a00f";

			reg = <0x44>;

			interrupt-parent = <&gph0>;

			interrupts = <2 IRQ_TYPE_EDGE_FALLING>;

			vdd-supply = <&gp2a_vled>;

			vio-supply = <&gp2a_vled>;

			io-channels = <&gp2a_shunt>;

			io-channel-names = "alsout";

			sharp,proximity-far-hysteresis = /bits/ 8 <0x40>;

			sharp,proximity-close-hysteresis = /bits/ 8 <0x20>;



		/* Sharp gp2a prox/light sensor, incomplete mainline binding */

			pinctrl-names = "default";

			pinctrl-0 = <&gp2a_irq>;

		};

	};



	i2c_magnetometer: i2c-gpio-7 {
@@ -543,6 +567,14 @@ 
	vdd-supply = <&ldo4_reg>;



	status = "okay";



	gp2a_shunt: current-sense-shunt {

		compatible = "current-sense-shunt";

		io-channels = <&adc 9>;

		shunt-resistor-micro-ohms = <47000000>; /* 47 ohms */

		#io-channel-cells = <0>;

		io-channel-ranges;

	};

};



&fimd {
@@ -618,6 +650,13 @@ 
		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;

	};



	gp2a_irq: gp2a-irq {

		samsung,pins = "gph0-2";

		samsung,pin-function = <EXYNOS_PIN_FUNC_F>;

		samsung,pin-pud = <S3C64XX_PIN_PULL_DOWN>;

		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;

	};



	pmic_dvs_pins: pmic-dvs-pins {

		samsung,pins = "gph0-3", "gph0-4", "gph0-5";

		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
@@ -686,6 +725,13 @@ 
		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;

	};



	gp2a_power: gp2a-power {

		samsung,pins = "gpj1-4";

		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;

		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;

		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;

	};



	touchkey_i2c_pins: touchkey-i2c-pins {

		samsung,pins = "gpj3-0", "gpj3-1";

		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;