Add the joystick, buttons and LEDs connected to the I2C I/O expander.
Signed-off-by: Joachim Eastwood <manabian@xxxxxxxxx>
---
arch/arm/boot/dts/lpc4350-hitex-eval.dts | 85 ++++++++++++++++++++++++++++++++
1 file changed, 85 insertions(+)
diff --git a/arch/arm/boot/dts/lpc4350-hitex-eval.dts b/arch/arm/boot/dts/lpc4350-hitex-eval.dts
index 5c529f45947b..022d495432c1 100644
--- a/arch/arm/boot/dts/lpc4350-hitex-eval.dts
+++ b/arch/arm/boot/dts/lpc4350-hitex-eval.dts
@@ -15,6 +15,9 @@
#include "lpc18xx.dtsi"
#include "lpc4350.dtsi"
+#include "dt-bindings/input/input.h"
+#include "dt-bindings/gpio/gpio.h"
+
/ {
model = "Hitex LPC4350 Evaluation Board";
compatible = "hitex,lpc4350-eval-board", "nxp,lpc4350";
@@ -34,6 +37,88 @@
device_type = "memory";
reg = <0x28000000 0x800000>; /* 8 MB */
};
+
+ pca_buttons {
+ compatible = "gpio-keys-polled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ poll-interval = <100>;
+ autorepeat;
+
+ button@0 {
+ label = "joy:right";
+ linux,code = <KEY_RIGHT>;
+ gpios = <&pca_gpio 8 GPIO_ACTIVE_LOW>;
+ };
+
+ button@1 {
+ label = "joy:up";
+ linux,code = <KEY_UP>;
+ gpios = <&pca_gpio 9 GPIO_ACTIVE_LOW>;
+ };
+
+
+ button@2 {
+ label = "joy:enter";
+ linux,code = <KEY_ENTER>;
+ gpios = <&pca_gpio 10 GPIO_ACTIVE_LOW>;
+ };
+
+ button@3 {
+ label = "joy:left";
+ linux,code = <KEY_LEFT>;
+ gpios = <&pca_gpio 11 GPIO_ACTIVE_LOW>;
+ };
+
+ button@4 {
+ label = "joy:down";
+ linux,code = <KEY_DOWN>;
+ gpios = <&pca_gpio 12 GPIO_ACTIVE_LOW>;
+ };
+
+ button@5 {
+ label = "user:sw3";
+ linux,code = <KEY_F1>;
+ gpios = <&pca_gpio 13 GPIO_ACTIVE_LOW>;
+ };
+
+ button@6 {
+ label = "user:sw4";
+ linux,code = <KEY_F2>;
+ gpios = <&pca_gpio 14 GPIO_ACTIVE_LOW>;
+ };
+
+ button@7 {
+ label = "user:sw5";
+ linux,code = <KEY_F3>;
+ gpios = <&pca_gpio 15 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ pca_leds {
+ compatible = "gpio-leds";
+
+ led0 {
+ label = "ext:led0";
+ gpios = <&pca_gpio 0 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "heartbeat";
+ };
+
+ led1 {
+ label = "ext:led1";
+ gpios = <&pca_gpio 1 GPIO_ACTIVE_LOW>;
+ };
+
+ led2 {
+ label = "ext:led2";
+ gpios = <&pca_gpio 2 GPIO_ACTIVE_LOW>;
+ };
+
+ led3 {
+ label = "ext:led3";
+ gpios = <&pca_gpio 3 GPIO_ACTIVE_LOW>;
+ };
+ };
};
&pinctrl {
--
1.8.0
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