Add gpio keys node for am43x gp evm.
Signed-off-by: Sourav Poddar <[email protected]>
---
arch/arm/boot/dts/am437x-gp-evm.dts | 21 +++++++++++++++++++++
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts
b/arch/arm/boot/dts/am437x-gp-evm.dts
index 312a51c..9ef6b5a 100644
--- 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 {
--
1.7.1
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