linux-kernel - Re: [PATCH] arm64: dts: x1e80100-crd: describe HID supplies

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Message-ID: <Zw5w+eCBMQu3CSuz@linaro.org>
Date: Tue, 15 Oct 2024 16:41:13 +0300
From: Abel Vesa <abel.vesa@...aro.org>
To: Johan Hovold <johan+linaro@...nel.org>
Cc: Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: x1e80100-crd: describe HID supplies

On 24-10-15 14:24:27, Johan Hovold wrote:
> Add the missing HID supplies to avoid relying on other consumers to keep
> them on.
> 
> This also avoids the following warnings on boot:
> 
> 	i2c_hid_of 0-0010: supply vdd not found, using dummy regulator
> 	i2c_hid_of 0-0010: supply vddl not found, using dummy regulator
> 	i2c_hid_of 1-0015: supply vdd not found, using dummy regulator
> 	i2c_hid_of 1-0015: supply vddl not found, using dummy regulator
> 	i2c_hid_of 1-003a: supply vdd not found, using dummy regulator
> 	i2c_hid_of 1-003a: supply vddl not found, using dummy regulator
> 
> Note that VREG_MISC_3P3 is also used for things like the fingerprint
> reader which are not yet fully described so mark the regulator as always
> on for now.
> 
> Fixes: d7e03cce0400 ("arm64: dts: qcom: x1e80100-crd: Enable more support")
> Cc: Abel Vesa <abel.vesa@...aro.org>
> Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
> ---
>  arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 34 +++++++++++++++++++++++
>  1 file changed, 34 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> index 10b28d870f08..4ab7078f76e0 100644
> --- a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> +++ b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> @@ -288,6 +288,23 @@ vreg_edp_3p3: regulator-edp-3p3 {
>  		regulator-boot-on;
>  	};
>  

[...]

>  
> +&pm8550ve_8_gpios {
> +	misc_3p3_reg_en: misc-3p3-reg-en-state {
> +		pins = "gpio6";
> +		function = "normal";
> +		bias-disable;

Maybe output-enable and input-disable are needed. Can you please check?

Otherwise, LGTM:

Reviewed-by: Abel Vesa <abel.vesa@...aro.org>

> +	};
> +};
> +
>  &pmc8380_3_gpios {
>  	edp_bl_en: edp-bl-en-state {
>  		pins = "gpio4";
> -- 
> 2.45.2
>