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| author |   Johan Jonker <jbx6244@gmail.com> | 2021-08-28 11:27:55 +0200 |
|---|---|---|
| committer |   Heiko Stuebner <heiko@sntech.de> | 2021-09-20 15:22:29 +0200 |
| commit | d7197d56c9cf3620ec086550386df3be2c90ae4d (patch) | |
| tree | 0286f9c27261f37fa6555145d73d616d902c9cab /arch/arm/boot/dts/rk3066a-mk808.dts | |
| parent | Linux 5.15-rc1 (diff) | |
| download | linux-dev-d7197d56c9cf3620ec086550386df3be2c90ae4d.tar.xz linux-dev-d7197d56c9cf3620ec086550386df3be2c90ae4d.zip | |
ARM: dts: rockchip: add adc-keys node to rk3066a-mk808
The MK808 has a button inside the cover for the boot loader to do
some action. Add the adc-keys node to the rk3066a-mk808.dts file.
The rk3066 has a higher maximum DC supply voltage for the analog part of
SAR-ADC VDDA_SARADC of 2.75V then other Rockchip SoCs.
For the "rockchip,saradc" node is a vref-supply property required,
so add a regulator for it as well.
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20210828092755.24560-1-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to 'arch/arm/boot/dts/rk3066a-mk808.dts')
| -rw-r--r-- | arch/arm/boot/dts/rk3066a-mk808.dts | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/rk3066a-mk808.dts b/arch/arm/boot/dts/rk3066a-mk808.dts index 9790bc63b50a..667d57a4ff45 100644 --- a/arch/arm/boot/dts/rk3066a-mk808.dts +++ b/arch/arm/boot/dts/rk3066a-mk808.dts @@ -4,6 +4,7 @@ */ /dts-v1/; +#include <dt-bindings/input/input.h> #include "rk3066a.dtsi" / { @@ -24,6 +25,20 @@ device_type = "memory"; }; + adc-keys { + compatible = "adc-keys"; + io-channels = <&saradc 1>; + io-channel-names = "buttons"; + keyup-threshold-microvolt = <2500000>; + poll-interval = <100>; + + recovery { + label = "recovery"; + linux,code = <KEY_VENDOR>; + press-threshold-microvolt = <0>; + }; + }; + gpio-leds { compatible = "gpio-leds"; @@ -46,6 +61,13 @@ }; }; + vcc_2v5: vcc-2v5 { + compatible = "regulator-fixed"; + regulator-name = "vcc_2v5"; + regulator-min-microvolt = <2500000>; + regulator-max-microvolt = <2500000>; + }; + vcc_io: vcc-io { compatible = "regulator-fixed"; regulator-name = "vcc_io"; @@ -164,6 +186,11 @@ }; }; +&saradc { + vref-supply = <&vcc_2v5>; + status = "okay"; +}; + &uart2 { status = "okay"; }; |