linux-kernel - Re: [PATCH 2/2] arm64: dts: ti: k3-am625-beagleplay: Add required voltage supplies for TEVI-OV5640

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Message-ID: <575fdd99-a7a9-430b-bc94-5809edd42fa4@ti.com>
Date: Tue, 6 May 2025 15:33:06 +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>
Subject: Re: [PATCH 2/2] arm64: dts: ti: k3-am625-beagleplay: Add required
 voltage supplies for TEVI-OV5640

On 06/05/25 10:22, Rishikesh Donadkar wrote:
> The device tree overlay for TEVI-OV5640 requires following voltage
> supplies:
> 
> AVDD-supply: Analog voltage supply, 2.8 volts
> DOVDD-supply: Digital I/O voltage supply, 1.8 volts
> DVDD-supply: Digital core voltage supply, 3.3 volts
> 
> Add them in the overlay.
> 
> Signed-off-by: Rishikesh Donadkar <r-donadkar@...com>

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

Regards
Devarsh
> ---
>  .../k3-am625-beagleplay-csi2-tevi-ov5640.dtso | 31 +++++++++++++++++++
>  1 file changed, 31 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am625-beagleplay-csi2-tevi-ov5640.dtso b/arch/arm64/boot/dts/ti/k3-am625-beagleplay-csi2-tevi-ov5640.dtso
> index 81a2763d43c65..8a7a9ece08af6 100644
> --- a/arch/arm64/boot/dts/ti/k3-am625-beagleplay-csi2-tevi-ov5640.dtso
> +++ b/arch/arm64/boot/dts/ti/k3-am625-beagleplay-csi2-tevi-ov5640.dtso
> @@ -15,6 +15,33 @@ clk_ov5640_fixed: ov5640-xclk {
>  		#clock-cells = <0>;
>  		clock-frequency = <24000000>;
>  	};
> +
> +	reg_2p8v: regulator-2p8v {
> +		compatible = "regulator-fixed";
> +		regulator-name = "2P8V";
> +		regulator-min-microvolt = <2800000>;
> +		regulator-max-microvolt = <2800000>;
> +		vin-supply = <&vdd_3v3>;
> +		regulator-always-on;
> +	};
> +
> +	reg_1p8v: regulator-1p8v {
> +		compatible = "regulator-fixed";
> +		regulator-name = "1P8V";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +		vin-supply = <&vdd_3v3>;
> +		regulator-always-on;
> +	};
> +
> +	reg_3p3v: regulator-3p3v {
> +		compatible = "regulator-fixed";
> +		regulator-name = "3P3V";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		vin-supply = <&vdd_3v3>;
> +		regulator-always-on;
> +	};
>  };
>  
>  &main_gpio0 {
> @@ -39,6 +66,10 @@ ov5640: camera@3c {
>  		clocks = <&clk_ov5640_fixed>;
>  		clock-names = "xclk";
>  
> +		AVDD-supply = <&reg_2p8v>;
> +		DOVDD-supply = <&reg_1p8v>;
> +		DVDD-supply = <&reg_3p3v>;
> +
>  		port {
>  			csi2_cam0: endpoint {
>  				remote-endpoint = <&csi2rx0_in_sensor>;