Re: [PATCH v1 4/4] arm64: dts: ti: k3-am62x: Add required voltage supplies for TEVI-OV5640

[Donadkar, Rishikesh]

On 02-05-2025 14:37, Devarsh Thakkar wrote:
> On 29/04/25 21:11, 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, 1.5 volts
> I think this contradicts the voltage mentioned in TEVI-OV56540 doc [1]
> which mention digital voltage as 3.3 volts ?


Thank you for pointing out, I will fix it.

> > Add them in the DT overlay.
> [1]:
> https://www.technexion.com/wp-content/uploads/2023/09/product-brief_tevi-ov5640.pdf
>
> Regards
> Devarsh
> > Signed-off-by: Rishikesh Donadkar <r-donadkar@xxxxxx>
> > ---
> >   .../dts/ti/k3-am62x-sk-csi2-tevi-ov5640.dtso  | 32 +++++++++++++++++++
> >   1 file changed, 32 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-tevi-ov5640.dtso b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-tevi-ov5640.dtso
> > index b6bfdfbbdd984..123ab0e5e8dfa 100644
> > --- a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-tevi-ov5640.dtso
> > +++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-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 = <&vcc_3v3_sys>;
> > +		regulator-always-on;
> > +	};
> > +
> > +	reg_1p8v: regulator-1p8v {
> > +		compatible = "regulator-fixed";
> > +		regulator-name = "1P8V";
> > +		regulator-min-microvolt = <1800000>;
> > +		regulator-max-microvolt = <1800000>;
> > +		vin-supply = <&vcc_3v3_sys>;
> > +		regulator-always-on;
> > +	};
> > +
> > +	reg_1p5v: regulator-1p5v {
> > +		compatible = "regulator-fixed";
> > +		regulator-name = "1P5V";
> > +		regulator-min-microvolt = <1500000>;
> > +		regulator-max-microvolt = <1500000>;
> > +		vin-supply = <&vcc_3v3_sys>;
> > +		regulator-always-on;
> > +	};
> >   };
> >   
> >   &main_i2c2 {
> > @@ -40,6 +67,11 @@ ov5640: camera@3c {
> >   
> >   				clocks = <&clk_ov5640_fixed>;
> >   				clock-names = "xclk";
> > +
> > +				AVDD-supply = <&reg_2p8v>;
> > +				DOVDD-supply = <&reg_1p8v>;
> > +				DVDD-supply = <&reg_1p5v>;
> > +
> >   				powerdown-gpios = <&exp1 13 GPIO_ACTIVE_LOW>;
> >   
> >   				port {