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arm64: dts: renesas: salvator-common: Add GPIO keys support

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The Salvator-X and XS boards have a 4 lines DIP switch and 3 push
buttons connected to SoC GPIOs, meant to be used as general-purpose test
keys. Add a corresponding node in DT, mapping (semi-randomly) the DIP
switch to keys 1-4 and the push buttons to keys A-C.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Laurent Pinchart 2018-08-19 22:44:55 +03:00 committed by Simon Horman
parent 7a516e49d9
commit e3414b8c45
1 changed files with 63 additions and 0 deletions
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63
arch/arm64/boot/dts/renesas/salvator-common.dtsi
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@ -29,6 +29,7 @@
*/
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
aliases {
@ -86,6 +87,63 @@ hdmi_in_con: endpoint {
};
};
keys {
compatible = "gpio-keys";
pinctrl-0 = <&keys_pins>;
pinctrl-names = "default";
key-1 {
gpios = <&gpio5 17 GPIO_ACTIVE_LOW>;
linux,code = <KEY_1>;
label = "SW4-1";
wakeup-source;
debounce-interval = <20>;
};
key-2 {
gpios = <&gpio5 20 GPIO_ACTIVE_LOW>;
linux,code = <KEY_2>;
label = "SW4-2";
wakeup-source;
debounce-interval = <20>;
};
key-3 {
gpios = <&gpio5 22 GPIO_ACTIVE_LOW>;
linux,code = <KEY_3>;
label = "SW4-3";
wakeup-source;
debounce-interval = <20>;
};
key-4 {
gpios = <&gpio5 23 GPIO_ACTIVE_LOW>;
linux,code = <KEY_4>;
label = "SW4-4";
wakeup-source;
debounce-interval = <20>;
};
key-a {
gpios = <&gpio6 11 GPIO_ACTIVE_LOW>;
linux,code = <KEY_A>;
label = "TSW0";
wakeup-source;
debounce-interval = <20>;
};
key-b {
gpios = <&gpio6 12 GPIO_ACTIVE_LOW>;
linux,code = <KEY_B>;
label = "TSW1";
wakeup-source;
debounce-interval = <20>;
};
key-c {
gpios = <&gpio6 13 GPIO_ACTIVE_LOW>;
linux,code = <KEY_C>;
label = "TSW2";
wakeup-source;
debounce-interval = <20>;
};
};
reg_1p8v: regulator0 {
compatible = "regulator-fixed";
regulator-name = "fixed-1.8V";
@ -572,6 +630,11 @@ irq0_pins: irq0 {
function = "intc_ex";
};
keys_pins: keys {
pins = "GP_5_17", "GP_5_20", "GP_5_22";
bias-pull-up;
};
pwm1_pins: pwm1 {
groups = "pwm1_a";
function = "pwm1";