arm64: dts: apq8016-sbc: Add Volume Up key device node

VOL/ZOOM+ button on DB410c is connected to
SoC GPIO 104. Add support for it.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc-soc-pins.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc-soc-pins.dtsi
index e1e6c6b..185388d 100644 (file)
--- a/arch/arm64/boot/dts/qcom/apq8016-sbc-soc-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8016-sbc-soc-pins.dtsi
@@ -72,4 +72,17 @@
                        bias-disable;
                };
        };
+
+       msm_key_volp_n_default: msm_key_volp_n_default {
+               pinmux {
+                       function = "gpio";
+                       pins = "gpio107";
+               };
+               pinconf {
+                       pins = "gpio107";
+                       drive-strength = <8>;
+                       input-enable;
+                       bias-pull-up;
+               };
+       };
 };

diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
index 6507eba..eac5389 100644 (file)
--- a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
@@ -15,6 +15,8 @@
 #include "pm8916.dtsi"
 #include "apq8016-sbc-soc-pins.dtsi"
 #include "apq8016-sbc-pmic-pins.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 #include <dt-bindings/sound/apq8016-lpass.h>
 
 / {
@@ -345,6 +347,22 @@
                        };
                };
        };
+
+       gpio_keys {
+               compatible = "gpio-keys";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               autorepeat;
+
+               pinctrl-names = "default";
+               pinctrl-0 = <&msm_key_volp_n_default>;
+
+               button@0 {
+                       label = "Volume Up";
+                       linux,code = <KEY_VOLUMEUP>;
+                       gpios = <&msmgpio 107 GPIO_ACTIVE_LOW>;
+               };
+       };
 };
 
 &wcd_codec {