83 lines
2.0 KiB
Diff
83 lines
2.0 KiB
Diff
From d7197d56c9cf3620ec086550386df3be2c90ae4d Mon Sep 17 00:00:00 2001
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From: Johan Jonker <jbx6244@gmail.com>
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Date: Sat, 28 Aug 2021 11:27:55 +0200
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Subject: [PATCH 064/478] ARM: dts: rockchip: add adc-keys node to
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rk3066a-mk808
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The MK808 has a button inside the cover for the boot loader to do
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some action. Add the adc-keys node to the rk3066a-mk808.dts file.
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The rk3066 has a higher maximum DC supply voltage for the analog part of
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SAR-ADC VDDA_SARADC of 2.75V then other Rockchip SoCs.
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For the "rockchip,saradc" node is a vref-supply property required,
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so add a regulator for it as well.
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Signed-off-by: Johan Jonker <jbx6244@gmail.com>
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Link: https://lore.kernel.org/r/20210828092755.24560-1-jbx6244@gmail.com
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Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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---
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arch/arm/boot/dts/rk3066a-mk808.dts | 27 +++++++++++++++++++++++++++
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1 file changed, 27 insertions(+)
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diff --git a/arch/arm/boot/dts/rk3066a-mk808.dts b/arch/arm/boot/dts/rk3066a-mk808.dts
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index 9790bc63b50a..667d57a4ff45 100644
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--- a/arch/arm/boot/dts/rk3066a-mk808.dts
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+++ b/arch/arm/boot/dts/rk3066a-mk808.dts
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@@ -4,6 +4,7 @@
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*/
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/dts-v1/;
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+#include <dt-bindings/input/input.h>
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#include "rk3066a.dtsi"
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/ {
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@@ -24,6 +25,20 @@ memory@60000000 {
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device_type = "memory";
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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 = <2500000>;
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+ poll-interval = <100>;
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+
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+ recovery {
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+ label = "recovery";
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+ linux,code = <KEY_VENDOR>;
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+ press-threshold-microvolt = <0>;
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+ };
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+ };
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+
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gpio-leds {
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compatible = "gpio-leds";
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@@ -46,6 +61,13 @@ hdmi_con_in: endpoint {
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};
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};
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+ vcc_2v5: vcc-2v5 {
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+ compatible = "regulator-fixed";
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+ regulator-name = "vcc_2v5";
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+ regulator-min-microvolt = <2500000>;
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+ regulator-max-microvolt = <2500000>;
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+ };
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+
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vcc_io: vcc-io {
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compatible = "regulator-fixed";
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regulator-name = "vcc_io";
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@@ -164,6 +186,11 @@ wifi_pwr: wifi-pwr {
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};
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};
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+&saradc {
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+ vref-supply = <&vcc_2v5>;
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+ status = "okay";
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+};
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+
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&uart2 {
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status = "okay";
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};
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--
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2.35.3
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