ARM: dts: am43x-gp-evm: Add matrix gpio keys.

Add gpio keys node for am43x gp evm.

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>

diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index 0dc248d..4eb72b8 100644 (file)
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -13,6 +13,7 @@
 #include "am4372.dtsi"
 #include <dt-bindings/pinctrl/am43xx.h>
 #include <dt-bindings/pwm/pwm.h>
+#include <dt-bindings/gpio/gpio.h>
 
 / {
        model = "TI AM437x GP EVM";
@@ -24,6 +25,26 @@
                brightness-levels = <0 51 53 56 62 75 101 152 255>;
                default-brightness-level = <8>;
        };
+
+       matrix_keypad: matrix_keypad@0 {
+               compatible = "gpio-matrix-keypad";
+               debounce-delay-ms = <5>;
+               col-scan-delay-us = <2>;
+
+               row-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH /* Bank3, pin21 */
+                               &gpio4 3 GPIO_ACTIVE_HIGH /* Bank4, pin3 */
+                               &gpio4 2 GPIO_ACTIVE_HIGH>; /* Bank4, pin2 */
+
+               col-gpios = <&gpio3 19 GPIO_ACTIVE_HIGH /* Bank3, pin19 */
+                               &gpio3 20 GPIO_ACTIVE_HIGH>; /* Bank3, pin20 */
+
+               linux,keymap = <0x00000201      /* P1 */
+                               0x00010202      /* P2 */
+                               0x01000067      /* UP */
+                               0x0101006a      /* RIGHT */
+                               0x02000069      /* LEFT */
+                               0x0201006c>;      /* DOWN */
+               };
 };
 
 &am43xx_pinmux {