ARM: dts: exynos: Add flash support to Galaxy S3 boards

The Galaxy S3 boards use an aat1290 to control the flash LED.  Add the
relevant device tree configuration to use it.

Signed-off-by: Simon Shields <simon@lineageos.org>
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org> [rebase]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

diff --git a/arch/arm/boot/dts/exynos4412-galaxy-s3.dtsi b/arch/arm/boot/dts/exynos4412-galaxy-s3.dtsi
index 30eee59..ce87d2f 100644 (file)
--- a/arch/arm/boot/dts/exynos4412-galaxy-s3.dtsi
+++ b/arch/arm/boot/dts/exynos4412-galaxy-s3.dtsi
@@ -15,6 +15,24 @@
                i2c10 = &i2c_cm36651;
        };
 
+       aat1290 {
+               compatible = "skyworks,aat1290";
+               flen-gpios = <&gpj1 1 GPIO_ACTIVE_HIGH>;
+               enset-gpios = <&gpj1 2 GPIO_ACTIVE_HIGH>;
+
+               pinctrl-names = "default", "host", "isp";
+               pinctrl-0 = <&camera_flash_host>;
+               pinctrl-1 = <&camera_flash_host>;
+               pinctrl-2 = <&camera_flash_isp>;
+
+               flash-led {
+                       label = "flash";
+                       led-max-microamp = <520833>;
+                       flash-max-microamp = <1012500>;
+                       flash-max-timeout-us = <1940000>;
+               };
+       };
+
        lcd_vdd3_reg: voltage-regulator-6 {
                compatible = "regulator-fixed";
                regulator-name = "LCD_VDD_2.2V";
@@ -131,6 +149,20 @@
        regulator-max-microvolt = <2800000>;
 };
 
+&pinctrl_0 {
+       camera_flash_host: camera-flash-host {
+               samsung,pins = "gpj1-0";
+               samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
+               samsung,pin-val = <0>;
+       };
+
+       camera_flash_isp: camera-flash-isp {
+               samsung,pins = "gpj1-0";
+               samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
+               samsung,pin-val = <1>;
+       };
+};
+
 &s5c73m3 {
        standby-gpios = <&gpm0 1 GPIO_ACTIVE_LOW>;   /* ISP_STANDBY */
        vdda-supply = <&ldo17_reg>;