linux-kernel - Re: [PATCH v2] arm64: dts: ti: k3-am642-sk: Enable WLAN connected to SDHCI0

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Date:   Fri, 25 Feb 2022 17:38:27 +0530
From:   Vignesh Raghavendra <vigneshr@...com>
To:     Aparna M <a-m1@...com>, <nm@...com>, <kishon@...com>,
        <kristo@...nel.org>, <robh+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <praneeth@...com>, <nikhil.nd@...com>
Subject: Re: [PATCH v2] arm64: dts: ti: k3-am642-sk: Enable WLAN connected to
 SDHCI0

Hi

On 23/02/22 9:27 pm, Aparna M wrote:
> From: Kishon Vijay Abraham I <kishon@...com>
> 
> WL1837 module is connected to SDHCI0 in AM642 SK. Enable it here.
> This will enable the WiFi functionaliy on the board.
> 
> Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
> Signed-off-by: Vignesh Raghavendra <vigneshr@...com>
> Signed-off-by: Nikhil Devshatwar <nikhil.nd@...com>
> Signed-off-by: Aparna M <a-m1@...com>
> ---
> 
> v1 -> v2: Update commit message with "From:" details
> 
>  arch/arm64/boot/dts/ti/k3-am642-sk.dts | 62 ++++++++++++++++++++++++++
>  1 file changed, 62 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> index 6b04745147be..1178bb982f05 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> @@ -125,6 +125,31 @@
>  		vin-supply = <&vcc_3v3_sys>;
>  		gpio = <&exp1 3 GPIO_ACTIVE_HIGH>;
>  	};
> +
> +	com8_ls_en: fixed-regulator-com8 {

Please use generic node names as per DT spec [1]

Something like:
	com8_ls_en: regulator-1 {
		...
	};



> +		compatible = "regulator-fixed";
> +		regulator-name = "com8_ls_en";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		regulator-always-on;
> +		regulator-boot-on;
> +		pinctrl-0 = <&main_com8_ls_en_pins_default>;
> +		pinctrl-names = "default";
> +		gpio = <&main_gpio0 62 GPIO_ACTIVE_LOW>;
> +	};
> +
> +	wlan_en: fixed-regulator-wlan {

same as above

> +		/* output of SN74AVC4T245RSVR */
> +		compatible = "regulator-fixed";
> +		regulator-name = "wlan_en";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +		enable-active-high;
> +		pinctrl-0 = <&main_wlan_en_pins_default>;
> +		pinctrl-names = "default";
> +		vin-supply = <&com8_ls_en>;
> +		gpio = <&main_gpio0 48 GPIO_ACTIVE_HIGH>;
> +	};
>  };
>  
>  &main_pmx0 {

[...]

[1]
https://github.com/devicetree-org/devicetree-specification/releases/tag/v0.4-rc1


Regards
Vignesh