[PATCH] arm64: dts: rockchip: Add maskrom button to R5S + R5C
Diederik de Haas
didi.debian at cknow.org
Wed Jul 16 01:33:35 PDT 2025
Both the R5S and R5C have a MASKROM button connected via saradc.
For both the R5S as the R5C it's described on page 9 of their
respective schematic, identified as 'Recovery'.
Signed-off-by: Diederik de Haas <didi.debian at cknow.org>
---
.../arm64/boot/dts/rockchip/rk3568-nanopi-r5s.dtsi | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3568-nanopi-r5s.dtsi b/arch/arm64/boot/dts/rockchip/rk3568-nanopi-r5s.dtsi
index f4d042bdd328..e3f44ea4eabe 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-nanopi-r5s.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3568-nanopi-r5s.dtsi
@@ -25,6 +25,20 @@ chosen: chosen {
stdout-path = "serial2:1500000n8";
};
+ 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>;
+ };
+ };
+
hdmi-con {
compatible = "hdmi-connector";
type = "a";
--
2.50.0
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