2022-07-14 20:10:23

by Lin, Meng-Bo

Subject: [PATCH 3/3] arm64: dts: qcom: msm8916-samsung-e2015: Add touchkey

On the Samsung Galaxy E5 and E7 the touch key is supplied by a single
fixed regulator (enabled via GPIO 97) that supplies both MCU and LED.
Add it to the device tree.

Signed-off-by: Lin, Meng-Bo <[email protected]>
---
.../qcom/msm8916-samsung-e2015-common.dtsi | 26 +++++++++++++++++++
.../dts/qcom/msm8916-samsung-grandmax.dts | 4 +++
2 files changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-e2015-common.dtsi b/arch/arm64/boot/dts/qcom/msm8916-samsung-e2015-common.dtsi
index 373154ee2643..9f3aca17130d 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-samsung-e2015-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-e2015-common.dtsi
@@ -19,6 +19,19 @@ muic: extcon@14 {
};
};

+ reg_touch_key: regulator-touch-key {
+ compatible = "regulator-fixed";
+ regulator-name = "touch_key";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpio = <&msmgpio 97 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&tkey_en_default>;
+ };
+
vibrator: vibrator {
compatible = "gpio-vibrator";
enable-gpios = <&msmgpio 76 GPIO_ACTIVE_HIGH>;
@@ -28,6 +41,11 @@ vibrator: vibrator {
};
};

+&touchkey {
+ vcc-supply = <&reg_touch_key>;
+ vdd-supply = <&reg_touch_key>;
+};
+
&msmgpio {
motor_en_default: motor-en-default {
pins = "gpio76";
@@ -36,4 +54,12 @@ motor_en_default: motor-en-default {
drive-strength = <2>;
bias-disable;
};
+
+ tkey_en_default: tkey-en-default {
+ pins = "gpio97";
+ function = "gpio";
+
+ drive-strength = <2>;
+ bias-disable;
+ };
};
diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-grandmax.dts b/arch/arm64/boot/dts/qcom/msm8916-samsung-grandmax.dts
index 41aada4bfb80..f68dd3d69a33 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-samsung-grandmax.dts
+++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-grandmax.dts
@@ -27,6 +27,10 @@ / {
/delete-node/ i2c-tkey;
};

+&reg_touch_key {
+ status = "disabled";
+};
+
&vibrator {
enable-gpios = <&msmgpio 72 GPIO_ACTIVE_HIGH>;
};
--
2.30.2