linux-kernel - Re: [PATCH v2] arm64: dts: qcom: pmi8998: add rradc node

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Message-ID: <bcfd8f7e86c74c369e40a091b11cc7d1@somainline.org>
Date:   Mon, 17 Oct 2022 20:43:44 +0200
From:   konrad.dybcio@...ainline.org
To:     Caleb Connolly <caleb.connolly@...aro.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        devicetree@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Lee Jones <lee@...nel.org>, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Stephen Boyd <sboyd@...nel.org>
Subject: Re: [PATCH v2] arm64: dts: qcom: pmi8998: add rradc node

On 2022-10-17 20:56, Caleb Connolly wrote:
> Add a DT node for the Round Robin ADC found in the PMI8998 PMIC.
> 
> The RRADC reports PMIC die and skin temperatures, as well as
> battery/charger thermals. It also reports USB and DC charger voltage 
> and
> current measurements.
> 
> Signed-off-by: Caleb Connolly <caleb.connolly@...aro.org>
> ---
> This patch introduces a new dtbs_check warning which will be fixed by
> https://lore.kernel.org/linux-arm-msm/20221017185105.2279129-1-caleb.connolly@linaro.org/
> 
> V1:
> https://lore.kernel.org/linux-arm-msm/20221016180330.1912214-1-caleb.connolly@linaro.org/
> Changes since v1:
>  * Change node name from adc@ to rradc@, see linked patch
>  * Enable the RRADC by default, rather than per-device
> ---
>  arch/arm64/boot/dts/qcom/pmi8998.dtsi | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/pmi8998.dtsi
> b/arch/arm64/boot/dts/qcom/pmi8998.dtsi
> index 6d3d212560c1..95c74d88eb93 100644
> --- a/arch/arm64/boot/dts/qcom/pmi8998.dtsi
> +++ b/arch/arm64/boot/dts/qcom/pmi8998.dtsi
> @@ -18,6 +18,14 @@ pmi8998_gpio: gpios@...0 {
>  			interrupt-controller;
>  			#interrupt-cells = <2>;
>  		};
> +
> +		pmi8998_rradc: rradc@...0 {
> +			compatible = "qcom,pmi8998-rradc";
> +			reg = <0x4500>;
> +			#io-channel-cells = <1>;
> +
> +			status = "okay";
No need to, it's enabled by default when you define it.

Konrad
> +		};
>  	};
> 
>  	pmi8998_lsid1: pmic@3 {