linux-kernel - Re: [PATCH v1 1/4] arm64: dts: ti: k3-am62p5-sk: Add regulator nodes for AM62P

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Message-ID: <6cf6f0f4-6559-4d74-ab69-1ccdf131512d@ti.com>
Date: Fri, 2 May 2025 13:18:32 +0530
From: Devarsh Thakkar <devarsht@...com>
To: Rishikesh Donadkar <r-donadkar@...com>, <nm@...com>, <vigneshr@...com>
CC: <kristo@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <vaishnav.a@...com>, <y-abhilashchandra@...com>,
        <s-jain1@...com>, <jai.luthra@...ux.dev>,
        <jai.luthra@...asonboard.com>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <imx@...ts.linux.dev>
Subject: Re: [PATCH v1 1/4] arm64: dts: ti: k3-am62p5-sk: Add regulator nodes
 for AM62P

On 29/04/25 21:11, Rishikesh Donadkar wrote:
> Add regulator node for AM62P-SK
> 
> VCC_3V3_MAIN is the output of LM5141-Q1, and it serves as an input to
> TPS22965DSGT which produces VCC_3V3_SYS [1]
> 
> VCC_3V3_SYS servers as vin-supply for peripherals like CSI [1].
> 
> Link: https://www.ti.com/lit/zip/sprr487 [1]
> Signed-off-by: Rishikesh Donadkar <r-donadkar@...com>

Reviewed-by: Devarsh Thakkar <devarsht@...com>

Regards
Devarsh
> ---
>  arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
> index c2f55cc5a8ebc..0af33fccb96bf 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
> @@ -115,6 +115,28 @@ vddshv_sdio: regulator-3 {
>  		bootph-all;
>  	};
>  
> +	vcc_3v3_main: regulator-4 {
> +		/* output of LM5141-Q1 */
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_3v3_main";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		vin-supply = <&vmain_pd>;
> +		regulator-always-on;
> +		regulator-boot-on;
> +	};
> +
> +	vcc_3v3_sys: regulator-5 {
> +		/* output of TPS222965DSGT */
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_3v3_sys";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		vin-supply = <&vcc_3v3_main>;
> +		regulator-always-on;
> +		regulator-boot-on;
> +	};
> +
>  	leds {
>  		compatible = "gpio-leds";
>  		pinctrl-names = "default";