ARM: dts: pcduino: Enable user LED and button support for pcDuino

The pcDuino board has LEDs connected to PH15/PH16, and back/home/menu
buttons to PH17/18/19 respectively. Enable these via gpio-leds and
gpio-keys. This is shared across the v1 and v2 versions of the board.

Tested on a v2 and verified against the schematics of a v1.

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
Acked-by: Hans de Goede <hdegoede@redhat.com>
[Maxime: Added some newlines between the button nodes]
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

diff --git a/arch/arm/boot/dts/sun4i-a10-pcduino.dts b/arch/arm/boot/dts/sun4i-a10-pcduino.dts
index 48161ad..9d1e548 100644 (file)
--- a/arch/arm/boot/dts/sun4i-a10-pcduino.dts
+++ b/arch/arm/boot/dts/sun4i-a10-pcduino.dts
@@ -51,6 +51,8 @@
 #include "sunxi-common-regulators.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/pinctrl/sun4i-a10.h>
 
 / {
        model = "LinkSprite pcDuino";
@@ -64,6 +66,22 @@
                        status = "okay";
                };
 
+               pinctrl@01c20800 {
+                       led_pins_pcduino: led_pins@0 {
+                               allwinner,pins = "PH15", "PH16";
+                               allwinner,function = "gpio_out";
+                               allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+                               allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+                       };
+
+                       key_pins_pcduino: key_pins@0 {
+                               allwinner,pins = "PH17", "PH18", "PH19";
+                               allwinner,function = "gpio_in";
+                               allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+                               allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+                       };
+               };
+
                mdio@01c0b080 {
                        status = "okay";
 
@@ -126,6 +144,48 @@
                };
        };
 
+       leds {
+               compatible = "gpio-leds";
+               pinctrl-names = "default";
+               pinctrl-0 = <&led_pins_pcduino>;
+
+               tx {
+                       label = "pcduino:green:tx";
+                       gpios = <&pio 7 15 GPIO_ACTIVE_LOW>;
+               };
+
+               rx {
+                       label = "pcduino:green:rx";
+                       gpios = <&pio 7 16 GPIO_ACTIVE_LOW>;
+               };
+       };
+
+       gpio_keys {
+               compatible = "gpio-keys";
+               pinctrl-names = "default";
+               pinctrl-0 = <&key_pins_pcduino>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               button@0 {
+                       label = "Key Back";
+                       linux,code = <KEY_BACK>;
+                       gpios = <&pio 7 17 GPIO_ACTIVE_LOW>;
+               };
+
+               button@1 {
+                       label = "Key Home";
+                       linux,code = <KEY_HOME>;
+                       gpios = <&pio 7 18 GPIO_ACTIVE_LOW>;
+               };
+
+               button@2 {
+                       label = "Key Menu";
+                       linux,code = <KEY_MENU>;
+                       gpios = <&pio 7 19 GPIO_ACTIVE_LOW>;
+               };
+       };
+
        reg_usb1_vbus: usb1-vbus {
                status = "okay";
        };