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| author |   Jonas Karlman <jonas@kwiboo.se> | 2025-03-04 20:16:37 +0000 |
|---|---|---|
| committer |   Heiko Stuebner <heiko@sntech.de> | 2025-03-08 18:15:48 +0100 |
| commit | 3a2819ee9c71d1c6388e456cc4eb042914d15d7e (patch) | |
| tree | 109df869b72dfd6e06659bbf9f09b1608ddad608 | |
| parent | arm64: dts: rockchip: Add SARADC node for RK3528 (diff) | |
| download | wireguard-linux-3a2819ee9c71d1c6388e456cc4eb042914d15d7e.tar.xz wireguard-linux-3a2819ee9c71d1c6388e456cc4eb042914d15d7e.zip | |
arm64: dts: rockchip: Add maskrom button to Radxa E20C
Radxa E20C has two buttons, one SARADC maskrom button and one GPIO user
button.
Add support for the maskrom button using a adc-keys node, also add the
regulators used by SARADC controller.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Link: https://lore.kernel.org/r/20250304201642.831218-5-jonas@kwiboo.se
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to '')
| -rw-r--r-- | arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts index b378774d2a4e..5346ef457c2a 100644 --- a/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts +++ b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts @@ -19,6 +19,20 @@ stdout-path = "serial0:1500000n8"; }; + adc-keys { + compatible = "adc-keys"; + io-channels = <&saradc 0>; + io-channel-names = "buttons"; + keyup-threshold-microvolt = <1800000>; + poll-interval = <100>; + + button-maskrom { + label = "MASKROM"; + linux,code = <KEY_SETUP>; + press-threshold-microvolt = <0>; + }; + }; + gpio-keys { compatible = "gpio-keys"; pinctrl-names = "default"; @@ -61,6 +75,35 @@ linux,default-trigger = "netdev"; }; }; + + vcc_1v8: regulator-1v8-vcc { + compatible = "regulator-fixed"; + regulator-name = "vcc_1v8"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + vin-supply = <&vcc_3v3>; + }; + + vcc_3v3: regulator-3v3-vcc { + compatible = "regulator-fixed"; + regulator-name = "vcc_3v3"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + vin-supply = <&vcc5v0_sys>; + }; + + vcc5v0_sys: regulator-5v0-vcc-sys { + compatible = "regulator-fixed"; + regulator-name = "vcc5v0_sys"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + }; }; &pinctrl { @@ -85,6 +128,11 @@ }; }; +&saradc { + vref-supply = <&vcc_1v8>; + status = "okay"; +}; + &uart0 { pinctrl-names = "default"; pinctrl-0 = <&uart0m0_xfer>; |