[PATCH 2/5] arm64: dts: qcom: msm8916-samsung-a3u: Add touch key regulators

[Stephan Gerhold <stephan@gerhold.net>]

From: Michael Srba <Michael.Srba@seznam.cz>

The touch key MCU and LED is supplied by two separate fixed regulators
that can be enabled through GPIO 86 and 60. Add them to the device tree.

Signed-off-by: Michael Srba <Michael.Srba@seznam.cz>
[stephan: extend commit message]
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
---
 .../boot/dts/qcom/msm8916-samsung-a3u-eur.dts | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-a3u-eur.dts b/arch/arm64/boot/dts/qcom/msm8916-samsung-a3u-eur.dts
index 661f41ad978b..6cc2eaeb1d33 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-samsung-a3u-eur.dts
+++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-a3u-eur.dts
@@ -20,6 +20,37 @@ reg_panel_vdd3: regulator-panel-vdd3 {
 		pinctrl-names = "default";
 		pinctrl-0 = <&panel_vdd3_default>;
 	};
+
+	reg_touch_key: regulator-touch-key {
+		compatible = "regulator-fixed";
+		regulator-name = "touch_key";
+		regulator-min-microvolt = <2800000>;
+		regulator-max-microvolt = <2800000>;
+
+		gpio = <&msmgpio 86 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&tkey_en_default>;
+	};
+
+	reg_key_led: regulator-key-led {
+		compatible = "regulator-fixed";
+		regulator-name = "key_led";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&msmgpio 60 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&tkey_led_en_default>;
+	};
+};
+
+&touchkey {
+	vcc-supply = <&reg_touch_key>;
+	vdd-supply = <&reg_key_led>;
 };
 
 &accelerometer {
@@ -81,6 +112,22 @@ panel_vdd3_default: panel-vdd3-default {
 		bias-disable;
 	};
 
+	tkey_en_default: tkey-en-default {
+		pins = "gpio86";
+		function = "gpio";
+
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	tkey_led_en_default: tkey-led-en-default {
+		pins = "gpio60";
+		function = "gpio";
+
+		drive-strength = <2>;
+		bias-disable;
+	};
+
 	ts_int_default: ts-int-default {
 		pins = "gpio13";
 		function = "gpio";
-- 
2.31.1