arm64: dts: renesas: r8a779a0: falcon-cpu: Add SW47-SW49 support

Add support for SW47, SW48 and SW49 via "gpio-keys" on the R-Car V3U
Falcon board.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Link: https://lore.kernel.org/r/20210922201314.3205674-1-kieran.bingham@ideasonboard.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi b/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi
index a0a1a1d..d66e508 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi
@@ -6,6 +6,7 @@
  */
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 #include <dt-bindings/leds/common.h>
 
 #include "r8a779a0.dtsi"
@@ -22,6 +23,37 @@
                stdout-path = "serial0:115200n8";
        };
 
+       keys {
+               compatible = "gpio-keys";
+
+               pinctrl-0 = <&keys_pins>;
+               pinctrl-names = "default";
+
+               key-1 {
+                       gpios = <&gpio6 18 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_1>;
+                       label = "SW47";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+
+               key-2 {
+                       gpios = <&gpio6 19 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_2>;
+                       label = "SW48";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+
+               key-3 {
+                       gpios = <&gpio6 20 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_3>;
+                       label = "SW49";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+       };
+
        leds {
                compatible = "gpio-leds";
 
@@ -160,6 +192,11 @@
                function = "i2c6";
        };
 
+       keys_pins: keys {
+               pins = "GP_6_18", "GP_6_19", "GP_6_20";
+               bias-pull-up;
+       };
+
        mmc_pins: mmc {
                groups = "mmc_data8", "mmc_ctrl", "mmc_ds";
                function = "mmc";