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Message-ID: <20221110113513.GA18247@thinkpad>
Date:   Thu, 10 Nov 2022 17:05:13 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Johan Hovold <johan+linaro@...nel.org>
Cc:     Bjorn Andersson <andersson@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/9] arm64: dts: qcom: sc8280xp-crd: enable WiFi
 controller

On Thu, Nov 10, 2022 at 11:35:55AM +0100, Johan Hovold wrote:
> Enable the Qualcomm QCNFA765 Wireless Network Adapter connected to
> PCIe4.
> 
> Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
> ---
>  arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 65 +++++++++++++++++++++++
>  1 file changed, 65 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
> index 5b9e37a16f9f..ab5b0aadeead 100644
> --- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
> +++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
> @@ -81,6 +81,22 @@ vreg_misc_3p3: regulator-misc-3p3 {
>  		regulator-always-on;
>  	};
>  
> +	vreg_wlan: regulator-wlan {
> +		compatible = "regulator-fixed";
> +
> +		regulator-name = "VCC_WLAN_3R9";
> +		regulator-min-microvolt = <3900000>;
> +		regulator-max-microvolt = <3900000>;
> +
> +		gpio = <&pmr735a_gpios 1 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&hastings_reg_en>;

Hastings is the family name of QCA639x WLAN chipsets. I don't think it would be
applicable here. Please use "wlan_reg_en" as that matches the convention used
throughout this file.

Thanks,
Mani

> +
> +		regulator-boot-on;
> +	};
> +
>  	vreg_wwan: regulator-wwan {
>  		compatible = "regulator-fixed";
>  
> @@ -246,6 +262,25 @@ &pcie3a_phy {
>  	status = "okay";
>  };
>  
> +&pcie4 {
> +	perst-gpios = <&tlmm 141 GPIO_ACTIVE_LOW>;
> +	wake-gpios = <&tlmm 139 GPIO_ACTIVE_LOW>;
> +
> +	vddpe-3v3-supply = <&vreg_wlan>;
> +
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pcie4_default>;
> +
> +	status = "okay";
> +};
> +
> +&pcie4_phy {
> +	vdda-phy-supply = <&vreg_l6d>;
> +	vdda-pll-supply = <&vreg_l4d>;
> +
> +	status = "okay";
> +};
> +
>  &pmc8280c_lpg {
>  	status = "okay";
>  };
> @@ -445,6 +480,13 @@ edp_bl_pwm: edp-bl-pwm-state {
>  	};
>  };
>  
> +&pmr735a_gpios {
> +	hastings_reg_en: hastings-reg-en-state {
> +		pins = "gpio1";
> +		function = "normal";
> +	};
> +};
> +
>  &tlmm {
>  	gpio-reserved-ranges = <74 6>, <83 4>, <125 2>, <128 2>, <154 7>;
>  
> @@ -521,6 +563,29 @@ wake-n-pins {
>  		};
>  	};
>  
> +	pcie4_default: pcie4-default-state {
> +		clkreq-n-pins {
> +			pins = "gpio140";
> +			function = "pcie4_clkreq";
> +			drive-strength = <2>;
> +			bias-pull-up;
> +		};
> +
> +		perst-n-pins {
> +			pins = "gpio141";
> +			function = "gpio";
> +			drive-strength = <2>;
> +			bias-pull-down;
> +		};
> +
> +		wake-n-pins {
> +			pins = "gpio139";
> +			function = "gpio";
> +			drive-strength = <2>;
> +			bias-pull-up;
> +		};
> +	};
> +
>  	qup0_i2c4_default: qup0-i2c4-default-state {
>  		pins = "gpio171", "gpio172";
>  		function = "qup4";
> -- 
> 2.37.4
> 

-- 
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