linux-kernel - Re: [PATCH v3] arm64: dts: qcom: qcs615: add WiFi/BT nodes

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Message-ID: <1ca062dd-8910-4caf-a133-0e5717b43540@oss.qualcomm.com>
Date: Thu, 5 Dec 2024 18:14:48 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: "Yu Zhang(Yuriy)" <quic_yuzha@...cinc.com>, andersson@...nel.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Cc: agross@...nel.org, ath11k@...ts.infradead.org, dmitry.baryshkov@...aro.org,
        konradybcio@...nel.org, kvalo@...nel.org, linux-media@...r.kernel.org,
        mchehab@...nel.org, quic_jjohnson@...cinc.com,
        quic_miaoqing@...cinc.com, quic_vgarodia@...cinc.com,
        stanimir.k.varbanov@...il.com, quic_jiaymao@...cinc.com
Subject: Re: [PATCH v3] arm64: dts: qcom: qcs615: add WiFi/BT nodes

On 3.12.2024 7:03 AM, Yu Zhang(Yuriy) wrote:
> Add a node for the PMU module of the WCN6855 present on the qcs615
> board. Assign its LDO power outputs to the existing WiFi/BT module.
> 

subject:

arm64: dts: qcom: qcs615-ride: ....

[...]

> +
> +	vreg_conn_1p8: vreg_conn_1p8 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vreg_conn_1p8";
> +		startup-delay-us = <4000>;
> +		enable-active-high;
> +		gpio = <&pm8150_gpios 1 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	vreg_conn_pa: vreg_conn_pa {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vreg_conn_pa";
> +		startup-delay-us = <4000>;
> +		enable-active-high;
> +		gpio = <&pm8150_gpios 6 GPIO_ACTIVE_HIGH>;
> +	};

Are any of these boot-on?

> +
> +	wcn6855-pmu {
> +		compatible = "qcom,wcn6855-pmu";
> +
> +		pinctrl-0 = <&bt_en_state>, <&wlan_en_state>;
> +		pinctrl-names = "default";
> +
> +		vddio-supply = <&vreg_conn_pa>;
> +		vddaon-supply = <&vreg_s5a>;
> +		vddpmu-supply = <&vreg_conn_1p8>;
> +		vddrfa0p95-supply = <&vreg_s5a>;
> +		vddrfa1p3-supply = <&vreg_s6a>;
> +		vddrfa1p9-supply = <&vreg_l15a>;
> +		vddpcie1p3-supply = <&vreg_s6a>;
> +		vddpcie1p9-supply = <&vreg_l15a>;
> +
> +		bt-enable-gpios = <&tlmm 85 GPIO_ACTIVE_HIGH>;
> +		wlan-enable-gpios = <&tlmm 98 GPIO_ACTIVE_HIGH>;

Please move these properties above supplies, to match the style in
other recent device trees

[...]

>  &rpmhcc {
>  	clocks = <&xo_board_clk>;
>  };
> @@ -262,12 +363,42 @@ wake-pins {
>  			bias-pull-up;
>  		};
>  	};
> +
> +	wlan_en_state: wlan-en-state {
> +		pins = "gpio98";
> +		function = "gpio";
> +		drive-strength = <16>;
> +		output-high;
> +		bias-pull-up;
> +	};
> +
> +	bt_en_state: bt-en-state {
> +		pins = "gpio85";
> +		function = "gpio";
> +		output-low;
> +		bias-pull-down;
> +	};

These should be sorted by gpio idx

Konrad