ARM: dts: imx6q-dhcom: Add keys and leds to the PDK2 board

On the PDK2 there are 4 keys and 4 leds. DHCOM GPIOs are
used for that, but one led isn't useable, because the GPIO
is already used as touch interrupt.

Signed-off-by: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Marek Vasut <marex@denx.de>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: kernel@dh-electronics.com
To: linux-arm-kernel@lists.infradead.org
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx6q-dhcom-pdk2.dts b/arch/arm/boot/dts/imx6q-dhcom-pdk2.dts
index 6bb7129..4d45583 100644 (file)
--- a/arch/arm/boot/dts/imx6q-dhcom-pdk2.dts
+++ b/arch/arm/boot/dts/imx6q-dhcom-pdk2.dts
@@ -7,6 +7,7 @@
 /dts-v1/;
 
 #include "imx6q-dhcom-som.dtsi"
+#include <dt-bindings/leds/common.h>
 
 / {
        model = "Freescale i.MX6 Quad DHCOM Premium Developer Kit (2)";
@@ -57,6 +58,80 @@
                };
        };
 
+       gpio-keys {
+               #size-cells = <0>;
+               compatible = "gpio-keys";
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_keys_pdk2>;
+
+               button-0 {
+                       label = "TA1-GPIO-A";
+                       linux,code = <KEY_A>;
+                       gpios = <&gpio1 2 GPIO_ACTIVE_LOW>;
+                       wakeup-source;
+               };
+
+               button-1 {
+                       label = "TA2-GPIO-B";
+                       linux,code = <KEY_B>;
+                       gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
+                       wakeup-source;
+               };
+
+               button-2 {
+                       label = "TA3-GPIO-C";
+                       linux,code = <KEY_C>;
+                       gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
+                       wakeup-source;
+               };
+
+               button-3 {
+                       label = "TA4-GPIO-D";
+                       linux,code = <KEY_D>;
+                       gpios = <&gpio6 3 GPIO_ACTIVE_LOW>;
+                       wakeup-source;
+               };
+       };
+
+       led {
+               compatible = "gpio-leds";
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_leds_pdk2>;
+
+               /*
+                * Disable led-5, because GPIO E is
+                * already used as touch interrupt.
+                */
+               led-5 {
+                       color = <LED_COLOR_ID_GREEN>;
+                       function = LED_FUNCTION_INDICATOR;
+                       gpios = <&gpio4 5 GPIO_ACTIVE_HIGH>; /* GPIO E */
+                       default-state = "off";
+                       status = "disabled";
+               };
+
+               led-6 {
+                       color = <LED_COLOR_ID_GREEN>;
+                       function = LED_FUNCTION_INDICATOR;
+                       gpios = <&gpio4 20 GPIO_ACTIVE_HIGH>; /* GPIO F */
+                       default-state = "off";
+               };
+
+               led-7 {
+                       color = <LED_COLOR_ID_GREEN>;
+                       function = LED_FUNCTION_INDICATOR;
+                       gpios = <&gpio4 7 GPIO_ACTIVE_HIGH>; /* GPIO H */
+                       default-state = "off";
+               };
+
+               led-8 {
+                       color = <LED_COLOR_ID_GREEN>;
+                       function = LED_FUNCTION_INDICATOR;
+                       gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>; /* GPIO I */
+                       default-state = "off";
+               };
+       };
+
        panel {
                compatible = "edt,etm0700g0edh6";
                ddc-i2c-bus = <&i2c2>;
@@ -237,6 +312,24 @@
                        MX6QDL_PAD_NANDF_CS1__GPIO6_IO14        0x120b0
                >;
        };
+
+       pinctrl_keys_pdk2: keys-pdk2-grp {
+               fsl,pins = <
+                       MX6QDL_PAD_GPIO_2__GPIO1_IO02           0x120b0 /* TA1 */
+                       MX6QDL_PAD_GPIO_4__GPIO1_IO04           0x120b0 /* TA2 */
+                       MX6QDL_PAD_GPIO_5__GPIO1_IO05           0x120b0 /* TA3 */
+                       MX6QDL_PAD_CSI0_DAT17__GPIO6_IO03       0x120b0 /* TA4 */
+               >;
+       };
+
+       pinctrl_leds_pdk2: leds-pdk2-grp {
+               fsl,pins = <
+                       MX6QDL_PAD_DI0_PIN4__GPIO4_IO20         0x120b0 /* led6 */
+                       MX6QDL_PAD_KEY_ROW0__GPIO4_IO07         0x120b0 /* led7 */
+                       MX6QDL_PAD_KEY_COL1__GPIO4_IO08         0x120b0 /* led8 */
+               >;
+       };
+
 };
 
 &ipu1_di0_disp0 {