arm64: dts: renesas: r8a77990: ebisu: Add SW4 support

Add support for SW4 via "gpio-keys" on the R-Car E3 Ebisu board.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Link: https://lore.kernel.org/r/162416649714.11444.12659951671817146236.sendpatchset@octo
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
index 4715e4a..4d492da 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
@@ -8,6 +8,7 @@
 /dts-v1/;
 #include "r8a77990.dtsi"
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 
 / {
        model = "Renesas Ebisu board based on r8a77990";
@@ -80,6 +81,42 @@
                };
        };
 
+       keys {
+               compatible = "gpio-keys";
+
+               pinctrl-0 = <&keys_pins>;
+               pinctrl-names = "default";
+
+               key-1 {
+                       gpios = <&gpio5 10 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_1>;
+                       label = "SW4-1";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+               key-2 {
+                       gpios = <&gpio5 11 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_2>;
+                       label = "SW4-2";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+               key-3 {
+                       gpios = <&gpio5 12 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_3>;
+                       label = "SW4-3";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+               key-4 {
+                       gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_4>;
+                       label = "SW4-4";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+       };
+
        lvds-decoder {
                compatible = "thine,thc63lvd1024";
                vcc-supply = <&reg_3p3v>;
@@ -540,6 +577,11 @@
                function = "intc_ex";
        };
 
+       keys_pins: keys {
+               pins = "GP_5_10", "GP_5_11", "GP_5_12", "GP_5_13";
+               bias-pull-up;
+       };
+
        pwm3_pins: pwm3 {
                groups = "pwm3_b";
                function = "pwm3";