ARM: dts: am335x: Guardian: Add keypad

 * Add support to guardian mt gpio keypad

Signed-off-by: Gireesh Hiremath <Gireesh.Hiremath@in.bosch.com>
Message-Id: <20220325100613.1494-4-Gireesh.Hiremath@in.bosch.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/am335x-guardian.dts b/arch/arm/boot/dts/am335x-guardian.dts
index 645de77..6f59c5f 100644 (file)
--- 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] */
                >;
        };