linux-kernel - Re: [PATCH v6 5/6] arm64: dts: ti: k3-am62a7-sk: Split vcc

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Date:   Thu, 23 Mar 2023 18:53:02 +0530
From:   Devarsh Thakkar <devarsht@...com>
To:     Jai Luthra <j-luthra@...com>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Mark Brown <broonie@...nel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Andrew Davis <afd@...com>,
        Jayesh Choudhary <j-choudhary@...com>,
        Aradhya Bhatia <a-bhatia1@...com>
Subject: Re: [PATCH v6 5/6] arm64: dts: ti: k3-am62a7-sk: Split vcc_3v3
 regulators

Hi Jai,

Thanks for the patch.

On 15/03/23 14:33, Jai Luthra wrote:
> VCC_3V3_MAIN is the output of LM5141-Q1, and it serves as an input to
> TPS22965DSGT which produces VCC_3V3_SYS.
I would suggest to put link to schematics too :
Design docs: Link: https://www.ti.com/lit/zip/sprr459
> 
> Signed-off-by: Jai Luthra <j-luthra@...com>
With that change,
Reviewed-by: Devarsh Thakkar <devarsht@...com>

Regards
Devarsh
> ---
>  arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 15 +++++++++++++--
>  1 file changed, 13 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> index 5c9012141ee2..063e69e45163 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> @@ -76,10 +76,10 @@ vcc_5v0: regulator-1 {
>  		regulator-boot-on;
>  	};
>  
> -	vcc_3v3_sys: regulator-2 {
> +	vcc_3v3_main: regulator-2 {
>  		/* output of LM5141-Q1 */
>  		compatible = "regulator-fixed";
> -		regulator-name = "vcc_3v3_sys";
> +		regulator-name = "vcc_3v3_main";
>  		regulator-min-microvolt = <3300000>;
>  		regulator-max-microvolt = <3300000>;
>  		vin-supply = <&vmain_pd>;
> @@ -98,6 +98,17 @@ vdd_mmc1: regulator-3 {
>  		gpio = <&exp1 3 GPIO_ACTIVE_HIGH>;
>  	};
>  
> +	vcc_3v3_sys: regulator-4 {
> +		/* 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";
>