This patch adds support to volume-up key found on the board.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
---
.../arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi | 12 ++++++++++++
arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi | 19 +++++++++++++++++++
2 files changed, 31 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
index 6c1628c..b1142c4 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
@@ -12,4 +12,16 @@
power-source = <2>; // PM8994_GPIO_S4, 1.8V
};
};
+
+ volume_up_gpio: pm8996_gpio2 {
+ pinconf {
+ pins = "gpio2";
+ function = "normal";
+ input-enable;
+ drive-push-pull;
+ bias-pull-up;
+ qcom,drive-strength = <PMIC_GPIO_STRENGTH_NO>;
+ power-source = <PM8994_GPIO_S4>; // 1.8V
+ };
+ };
};
diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
index 422959b..d2196fc 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
@@ -15,6 +15,8 @@
#include "pm8994.dtsi"
#include "apq8096-db820c-pins.dtsi"
#include "apq8096-db820c-pmic-pins.dtsi"
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
/ {
aliases {
@@ -87,4 +89,21 @@
status = "okay";
};
};
+
+
+ gpio_keys {
+ compatible = "gpio-keys";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ autorepeat;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&volume_up_gpio>;
+
+ button@0 {
+ label = "Volume Up";
+ linux,code = <KEY_VOLUMEUP>;
+ gpios = <&pm8994_gpios 2 GPIO_ACTIVE_LOW>;
+ };
+ };
};
--
2.10.1
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