ARM: dts: renesas: r9a06g032-rzn1d400-db: Describe keys

The keys are connected to the I2C GPIO extender which has the interrupt
pin not connected. So, we need to poll.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250328153134.2881-12-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts b/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts
index d50a1d91e9684e44014dfbe1f0407a115fc39837..322e4c95ad3def1ffa5706981b9dda30008eb9e3 100644 (file)
--- a/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts
+++ b/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts
@@ -8,8 +8,10 @@
 
 /dts-v1/;
 
-#include <dt-bindings/pinctrl/rzn1-pinctrl.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 #include <dt-bindings/net/pcs-rzn1-miic.h>
+#include <dt-bindings/pinctrl/rzn1-pinctrl.h>
 
 #include "r9a06g032.dtsi"
 
@@ -24,6 +26,68 @@
        aliases {
                serial0 = &uart0;
        };
+
+       keyboard {
+               compatible = "gpio-keys-polled";
+               poll-interval = <100>;
+
+               switch-1 {
+                       linux,code = <KEY_1>;
+                       label = "SW1-1";
+                       debounce-interval = <20>;
+                       gpios = <&pca9698 8 GPIO_ACTIVE_LOW>;
+               };
+
+               switch-2 {
+                       linux,code = <KEY_2>;
+                       label = "SW1-2";
+                       debounce-interval = <20>;
+                       gpios = <&pca9698 9 GPIO_ACTIVE_LOW>;
+               };
+
+               switch-3 {
+                       linux,code = <KEY_3>;
+                       label = "SW1-3";
+                       debounce-interval = <20>;
+                       gpios = <&pca9698 10 GPIO_ACTIVE_LOW>;
+               };
+
+               switch-4 {
+                       linux,code = <KEY_4>;
+                       label = "SW1-4";
+                       debounce-interval = <20>;
+                       gpios = <&pca9698 11 GPIO_ACTIVE_LOW>;
+               };
+
+               switch-5 {
+                       linux,code = <KEY_5>;
+                       label = "SW1-5";
+                       debounce-interval = <20>;
+                       gpios = <&pca9698 12 GPIO_ACTIVE_LOW>;
+               };
+
+               switch-6 {
+                       linux,code = <KEY_6>;
+                       label = "SW1-6";
+                       debounce-interval = <20>;
+                       gpios = <&pca9698 13 GPIO_ACTIVE_LOW>;
+               };
+
+               switch-7 {
+                       linux,code = <KEY_7>;
+                       label = "SW1-7";
+                       debounce-interval = <20>;
+                       gpios = <&pca9698 14 GPIO_ACTIVE_LOW>;
+               };
+
+               switch-8 {
+                       linux,code = <KEY_8>;
+                       label = "SW1-8";
+                       debounce-interval = <20>;
+                       gpios = <&pca9698 15 GPIO_ACTIVE_LOW>;
+               };
+
+       };
 };
 
 &can0 {