ARM: dts: qcom: msm8974-klte: Add gpio-keys nodes

This introduces the gpio-keys nodes for volume/home keys and the
associated pinctrl state.

Signed-off-by: Daniele Debernardi <drebrez@gmail.com>
Link: https://lore.kernel.org/r/20200411182122.2677248-4-iskren.chernev@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

diff --git a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
index 36ad8ff071ca7421f2b33d02cf94982698304e39..752ab9e99a8c0cc1dc744d9df8ab1c879128272c 100644 (file)
--- a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
+++ b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
@@ -1,6 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "qcom-msm8974pro.dtsi"
 #include "qcom-pma8084.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 
 / {
        model = "Samsung Galaxy S5";
@@ -205,4 +208,50 @@
                status = "ok";
        };
 
+       gpio-keys {
+               compatible = "gpio-keys";
+               input-name = "gpio-keys";
+
+               pinctrl-names = "default";
+               pinctrl-0 = <&gpio_keys_pin_a>;
+
+               volume-down {
+                       label = "volume_down";
+                       gpios = <&pma8084_gpios 2 GPIO_ACTIVE_LOW>;
+                       linux,input-type = <1>;
+                       linux,code = <KEY_VOLUMEDOWN>;
+                       debounce-interval = <15>;
+               };
+
+               home-key {
+                       label = "home_key";
+                       gpios = <&pma8084_gpios 3 GPIO_ACTIVE_LOW>;
+                       linux,input-type = <1>;
+                       linux,code = <KEY_HOMEPAGE>;
+                       wakeup-source;
+                       debounce-interval = <15>;
+               };
+
+               volume-up {
+                       label = "volume_up";
+                       gpios = <&pma8084_gpios 5 GPIO_ACTIVE_LOW>;
+                       linux,input-type = <1>;
+                       linux,code = <KEY_VOLUMEUP>;
+                       debounce-interval = <15>;
+               };
+       };
+};
+
+&spmi_bus {
+       pma8084@0 {
+               gpios@c000 {
+                       gpio_keys_pin_a: gpio-keys-active {
+                               pins = "gpio2", "gpio3", "gpio5";
+                               function = "normal";
+
+                               bias-pull-up;
+                               power-source = <PMA8084_GPIO_S4>;
+                       };
+               };
+       };
 };