linux-kernel - Re: [PATCH v2 3/3] arm64: dts: qcom: sc8280xp-x13s: model the PMU of the on-board wcn6855

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Message-ID: <lpjfpgnbhrp3u4rqczoouf2kvktdigisi3sjhfstanw4t5g2sc@fvqana5gftds>
Date: Tue, 3 Sep 2024 17:18:56 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Bartosz Golaszewski <brgl@...ev.pl>
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, 
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>, Steev Klimaszewski <steev@...i.org>
Subject: Re: [PATCH v2 3/3] arm64: dts: qcom: sc8280xp-x13s: model the PMU of
 the on-board wcn6855

On Tue, Sep 03, 2024 at 11:36:28AM GMT, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> 
> Add a node for the PMU of the WCN6855 and rework the inputs of the wifi
> and bluetooth nodes to consume the PMU's outputs.
> 
> Tested-by: Steev Klimaszewski <steev@...i.org> # Thinkpad X13s
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> ---
>  .../qcom/sc8280xp-lenovo-thinkpad-x13s.dts    | 98 ++++++++++++++++---
>  1 file changed, 86 insertions(+), 12 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> index 6a28cab97189..88b31550f9df 100644
> --- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> +++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> @@ -400,6 +400,67 @@ usb1_sbu_mux: endpoint {
>  			};
>  		};
>  	};
> +
> +	wcn6855-pmu {
> +		compatible = "qcom,wcn6855-pmu";
> +
> +		pinctrl-0 = <&wlan_en>;
> +		pinctrl-names = "default";
> +
> +		wlan-enable-gpios = <&tlmm 134 GPIO_ACTIVE_HIGH>;
> +		bt-enable-gpios = <&tlmm 133 GPIO_ACTIVE_HIGH>;
> +
> +		vddio-supply = <&vreg_s10b>;
> +		vddaon-supply = <&vreg_s12b>;
> +		vddpmu-supply = <&vreg_s12b>;
> +		vddrfa0p95-supply = <&vreg_s12b>;
> +		vddrfa1p3-supply = <&vreg_s11b>;
> +		vddrfa1p9-supply = <&vreg_s1c>;
> +		vddpcie1p3-supply = <&vreg_s11b>;
> +		vddpcie1p9-supply = <&vreg_s1c>;

As the WiFi is now properly using the PMU, should we also remove some of
the regulator-always-on properties?

> +

-- 
With best wishes
Dmitry