ARM: dts: silk: Add GPIO keys to DT

Extend the Silk board support to include SW3, SW4, SW6 and SW12. They
are all connected via GPIO lines and handled by the gpio-keys driver.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/r8a7794-silk.dts b/arch/arm/boot/dts/r8a7794-silk.dts
index befd0fb880ccebc555de23360f8cefc2354fa102..351cb3b3d966342038646b81aaf2c14d056976d0 100644 (file)
--- a/arch/arm/boot/dts/r8a7794-silk.dts
+++ b/arch/arm/boot/dts/r8a7794-silk.dts
@@ -24,6 +24,7 @@
 /dts-v1/;
 #include "r8a7794.dtsi"
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 
 / {
        model = "SILK";
@@ -45,6 +46,60 @@ memory@40000000 {
                reg = <0 0x40000000 0 0x40000000>;
        };
 
+       gpio-keys {
+               compatible = "gpio-keys";
+
+               key-3 {
+                       gpios = <&gpio5 10 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_3>;
+                       label = "SW3";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+               key-4 {
+                       gpios = <&gpio5 11 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_4>;
+                       label = "SW4";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+               key-6 {
+                       gpios = <&gpio5 12 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_6>;
+                       label = "SW6";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+               key-a {
+                       gpios = <&gpio3 9 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_A>;
+                       label = "SW12-1";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+               key-b {
+                       gpios = <&gpio3 10 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_B>;
+                       label = "SW12-2";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+               key-c {
+                       gpios = <&gpio3 11 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_C>;
+                       label = "SW12-3";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+               key-d {
+                       gpios = <&gpio3 12 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_D>;
+                       label = "SW12-4";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+       };
+
        d3_3v: regulator-d3-3v {
                compatible = "regulator-fixed";
                regulator-name = "D3.3V";