77 lines
1.9 KiB
Diff
77 lines
1.9 KiB
Diff
From afa933c208e5ea9ddf8adb460e273b2b1aba85e5 Mon Sep 17 00:00:00 2001
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From: Sebastian Reichel <sebastian.reichel@collabora.com>
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Date: Thu, 5 Oct 2023 15:43:57 +0200
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Subject: [PATCH] arm64: dts: rockchip: add ADC buttons to rk3588-evb1
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The Rockchip EVB1 has a couple of buttons connected via an ADC
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line. Let's add them to its devicetree.
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Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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Link: https://lore.kernel.org/r/20231005134357.37171-1-sebastian.reichel@collabora.com
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Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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---
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.../boot/dts/rockchip/rk3588-evb1-v10.dts | 38 +++++++++++++++++++
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1 file changed, 38 insertions(+)
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--- a/arch/arm64/boot/dts/rockchip/rk3588-evb1-v10.dts
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+++ b/arch/arm64/boot/dts/rockchip/rk3588-evb1-v10.dts
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@@ -7,6 +7,7 @@
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/dts-v1/;
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#include <dt-bindings/gpio/gpio.h>
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+#include <dt-bindings/input/input.h>
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#include <dt-bindings/pinctrl/rockchip.h>
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#include "rk3588.dtsi"
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@@ -22,6 +23,38 @@
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stdout-path = "serial2:1500000n8";
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};
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+ adc-keys {
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+ compatible = "adc-keys";
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+ io-channels = <&saradc 1>;
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+ io-channel-names = "buttons";
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+ keyup-threshold-microvolt = <1800000>;
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+ poll-interval = <100>;
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+
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+ button-vol-up {
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+ label = "Volume Up";
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+ linux,code = <KEY_VOLUMEUP>;
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+ press-threshold-microvolt = <17000>;
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+ };
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+
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+ button-vol-down {
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+ label = "Volume Down";
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+ linux,code = <KEY_VOLUMEDOWN>;
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+ press-threshold-microvolt = <417000>;
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+ };
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+
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+ button-menu {
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+ label = "Menu";
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+ linux,code = <KEY_MENU>;
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+ press-threshold-microvolt = <890000>;
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+ };
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+
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+ button-escape {
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+ label = "Escape";
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+ linux,code = <KEY_ESC>;
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+ press-threshold-microvolt = <1235000>;
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+ };
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+ };
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+
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backlight: backlight {
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compatible = "pwm-backlight";
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power-supply = <&vcc12v_dcin>;
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@@ -285,6 +318,11 @@
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status = "okay";
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};
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+&saradc {
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+ vref-supply = <&vcc_1v8_s0>;
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+ status = "okay";
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+};
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+
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&sdhci {
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bus-width = <8>;
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no-sdio;
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