From: Gireesh Hiremath <Gireesh.Hiremath@xxxxxxxxxxxx>
* Add support to guardian mt gpio keypad
Signed-off-by: Gireesh Hiremath <Gireesh.Hiremath@xxxxxxxxxxxx>
---
arch/arm/boot/dts/am335x-guardian.dts | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/arch/arm/boot/dts/am335x-guardian.dts b/arch/arm/boot/dts/am335x-guardian.dts
index 645de77bdb56..6f59c5f36c0d 100644
--- a/arch/arm/boot/dts/am335x-guardian.dts
+++ b/arch/arm/boot/dts/am335x-guardian.dts
@@ -36,6 +36,13 @@
#address-cells = <1>;
#size-cells = <0>;
+ select-button {
+ label = "guardian-select-button";
+ linux,code = <KEY_5>;
+ gpios = <&gpio1 31 GPIO_ACTIVE_LOW>;
+ wakeup-source;
+ };
+
power-button {
label = "guardian-power-button";
linux,code = <KEY_POWER>;
@@ -115,6 +122,22 @@
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
+
+ mt_keypad: mt_keypad@0 {
+ compatible = "gpio-mt-keypad";
+ debounce-delay-ms = <10>;
+ col-scan-delay-us = <2>;
+ keypad,num-lines = <5>;
+ linux,no-autorepeat;
+ gpio-activelow;
+ line-gpios = <
+ &gpio1 24 GPIO_ACTIVE_LOW /*gpio_56*/
+ &gpio1 23 GPIO_ACTIVE_LOW /*gpio_55*/
+ &gpio1 22 GPIO_ACTIVE_LOW /*gpio_54*/
+ &gpio1 20 GPIO_ACTIVE_LOW /*gpio_52*/
+ &gpio1 16 GPIO_ACTIVE_LOW /*gpio_48*/
+ >;
+ };
};
&elm {
@@ -369,6 +392,7 @@
guardian_button_pins: pinmux_guardian_button_pins {
pinctrl-single,pins = <
AM33XX_IOPAD(0x940, PIN_INPUT | MUX_MODE7) /* (M16) gmii1_rxd0.gpio2[21] */
+ AM33XX_IOPAD(0x884, PIN_INPUT | MUX_MODE7) /* (V9) gpmc_csn2.gpio1[31] */
>;
};
--
2.20.1
