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[81.204.249.205]) by smtp.gmail.com with ESMTPSA id y23sm3866058ejp.115.2021.08.28.02.28.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 28 Aug 2021 02:28:01 -0700 (PDT) From: Johan Jonker To: heiko@sntech.de Cc: robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] ARM: dts: rockchip: add adc-keys node to rk3066a-mk808.dts Date: Sat, 28 Aug 2021 11:27:55 +0200 Message-Id: <20210828092755.24560-1-jbx6244@gmail.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210828_022803_848371_803ACA60 X-CRM114-Status: GOOD ( 13.11 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org 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 --- arch/arm/boot/dts/rk3066a-mk808.dts | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/arch/arm/boot/dts/rk3066a-mk808.dts b/arch/arm/boot/dts/rk3066a-mk808.dts index 9790bc63b..667d57a4f 100644 --- a/arch/arm/boot/dts/rk3066a-mk808.dts +++ b/arch/arm/boot/dts/rk3066a-mk808.dts @@ -4,6 +4,7 @@ */ /dts-v1/; +#include #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 = ; + 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"; };