[PATCH v1 0/4] Fix dtbs_check warnings in sensor overlays

[PATCH v1 0/4] Fix dtbs_check warnings in sensor overlays

[Rishikesh Donadkar]

Fix the follwoing dtbs_check warnings
https://gist.github.com/Rishikesh-D/ba0876a26e35c3b9662c75563b8b77ce

Test Logs:
am62a7 + imx219 : https://gist.github.com/Rishikesh-D/f32d6a0ec3cbb0f9f4f29254239d3cd2
am62a7 + tevi-ov5640 : https://gist.github.com/Rishikesh-D/21aad1db1487b884c22527d6e1432ae7
am62a7 + ov5640 : https://gist.github.com/Rishikesh-D/da4489f1813e90d840fa5ca91df5923e

am62p5 + imx219 : https://gist.github.com/Rishikesh-D/f75ac40f999fd996495f8962772761ae
am62p5 + tevi-ov5640 : https://gist.github.com/Rishikesh-D/9d117779a5373e7d6faa2db59501746f
am62p5 + ov5640 : https://gist.github.com/Rishikesh-D/70f426c89154cfeb6292081623581a98

am625 + imx219 : https://gist.github.com/Rishikesh-D/b93542292ce22e498b1039309c60fae8
am625 + tevi-ov5640 : https://gist.github.com/Rishikesh-D/62d63e3a2bbf6761cc64457d70021bb1
am625 + ov5640 : https://gist.github.com/Rishikesh-D/b3e799671675d00363c3ceac00f8977f

Signed-off-by: Rishikesh Donadkar <r-donadkar@ti.com>

Rishikesh Donadkar (4):
  arm64: dts: ti: k3-am62p5-sk: Add regulator nodes for AM62P
  arm64: dts: ti: k3-am62x: Add required voltage supplies for IMX219
  arm64: dts: ti: k3-am62x: Add required voltage supplies for OV5640
  arm64: dts: ti: k3-am62x: Add required voltage supplies for
    TEVI-OV5640

 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts       | 22 +++++++++++++
 .../boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso  | 31 ++++++++++++++++++
 .../boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso  | 32 +++++++++++++++++++
 .../dts/ti/k3-am62x-sk-csi2-tevi-ov5640.dtso  | 32 +++++++++++++++++++
 4 files changed, 117 insertions(+)

-- 
2.34.1

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

[Rishikesh Donadkar]

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@ti.com>
---
 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";
-- 
2.34.1

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

[Devarsh Thakkar]

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@ti.com>

Reviewed-by: Devarsh Thakkar <devarsht@ti.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";

[PATCH v1 2/4] arm64: dts: ti: k3-am62x: Add required voltage supplies for IMX219

[Rishikesh Donadkar]

The device tree overlay for the IMX219 sensor requires three voltage
supplies to be defined: VANA (analog), VDIG (digital core), and VDDL
(digital I/O).

Add the corresponding voltage supply definitions to avoid dtbs_check
warnings.

Signed-off-by: Rishikesh Donadkar <r-donadkar@ti.com>
---
 .../boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso  | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso
index dd090813a32d6..149c59c071823 100644
--- a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso
+++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso
@@ -15,6 +15,33 @@ clk_imx219_fixed: imx219-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_1p2v: regulator-1p2v {
+		compatible = "regulator-fixed";
+		regulator-name = "1P2V";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		vin-supply = <&vcc_3v3_sys>;
+		regulator-always-on;
+	};
 };
 
 &main_i2c2 {
@@ -40,6 +67,10 @@ ov5640: camera@10 {
 
 				clocks = <&clk_imx219_fixed>;
 
+				VANA-supply = <&reg_2p8v>;
+				VDIG-supply = <&reg_1p8v>;
+				VDDL-supply = <&reg_1p2v>;
+
 				reset-gpios = <&exp1 13 GPIO_ACTIVE_HIGH>;
 
 				port {
-- 
2.34.1

Re: [PATCH v1 2/4] arm64: dts: ti: k3-am62x: Add required voltage supplies for IMX219

[Devarsh Thakkar]

On 29/04/25 21:11, Rishikesh Donadkar wrote:
> The device tree overlay for the IMX219 sensor requires three voltage
> supplies to be defined: VANA (analog), VDIG (digital core), and VDDL
> (digital I/O).
> 
> Add the corresponding voltage supply definitions to avoid dtbs_check
> warnings.
> 
> Signed-off-by: Rishikesh Donadkar <r-donadkar@ti.com>

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

Regards
Devarsh
> ---
>  .../boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso  | 31 +++++++++++++++++++
>  1 file changed, 31 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso
> index dd090813a32d6..149c59c071823 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso
> +++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso
> @@ -15,6 +15,33 @@ clk_imx219_fixed: imx219-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_1p2v: regulator-1p2v {
> +		compatible = "regulator-fixed";
> +		regulator-name = "1P2V";
> +		regulator-min-microvolt = <1200000>;
> +		regulator-max-microvolt = <1200000>;
> +		vin-supply = <&vcc_3v3_sys>;
> +		regulator-always-on;
> +	};
>  };
>  
>  &main_i2c2 {
> @@ -40,6 +67,10 @@ ov5640: camera@10 {
>  
>  				clocks = <&clk_imx219_fixed>;
>  
> +				VANA-supply = <&reg_2p8v>;
> +				VDIG-supply = <&reg_1p8v>;
> +				VDDL-supply = <&reg_1p2v>;
> +
>  				reset-gpios = <&exp1 13 GPIO_ACTIVE_HIGH>;
>  
>  				port {

Re: [PATCH v1 2/4] arm64: dts: ti: k3-am62x: Add required voltage supplies for IMX219

[Devarsh Thakkar]

On 29/04/25 21:11, Rishikesh Donadkar wrote:
> The device tree overlay for the IMX219 sensor requires three voltage
> supplies to be defined: VANA (analog), VDIG (digital core), and VDDL
> (digital I/O).
> 
> Add the corresponding voltage supply definitions to avoid dtbs_check
> warnings.
> 

On a side-note device-tree overlay requiring these voltages is an
implied reason, it's mainly because the schematics mention that and
bindings want to capture same topography in device-tree too.

So maybe good to mention that and share schematic link too in commit
message :

https://datasheets.raspberrypi.com/camera/camera-module-2-schematics.pdf

With these changes, feel free to add,

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

Regards
Devarsh

> Signed-off-by: Rishikesh Donadkar <r-donadkar@ti.com>
> ---
>  .../boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso  | 31 +++++++++++++++++++
>  1 file changed, 31 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso
> index dd090813a32d6..149c59c071823 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso
> +++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso
> @@ -15,6 +15,33 @@ clk_imx219_fixed: imx219-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_1p2v: regulator-1p2v {
> +		compatible = "regulator-fixed";
> +		regulator-name = "1P2V";
> +		regulator-min-microvolt = <1200000>;
> +		regulator-max-microvolt = <1200000>;
> +		vin-supply = <&vcc_3v3_sys>;
> +		regulator-always-on;
> +	};
>  };
>  
>  &main_i2c2 {
> @@ -40,6 +67,10 @@ ov5640: camera@10 {
>  
>  				clocks = <&clk_imx219_fixed>;
>  
> +				VANA-supply = <&reg_2p8v>;
> +				VDIG-supply = <&reg_1p8v>;
> +				VDDL-supply = <&reg_1p2v>;
> +
>  				reset-gpios = <&exp1 13 GPIO_ACTIVE_HIGH>;
>  
>  				port {

Re: [PATCH v1 2/4] arm64: dts: ti: k3-am62x: Add required voltage supplies for IMX219

[Donadkar, Rishikesh]

On 02-05-2025 13:45, Devarsh Thakkar wrote:
> On 29/04/25 21:11, Rishikesh Donadkar wrote:
>> The device tree overlay for the IMX219 sensor requires three voltage
>> supplies to be defined: VANA (analog), VDIG (digital core), and VDDL
>> (digital I/O).
>>
>> Add the corresponding voltage supply definitions to avoid dtbs_check
>> warnings.
>>
> On a side-note device-tree overlay requiring these voltages is an
> implied reason, it's mainly because the schematics mention that and
> bindings want to capture same topography in device-tree too.
>
> So maybe good to mention that and share schematic link too in commit
> message :
>
> https://datasheets.raspberrypi.com/camera/camera-module-2-schematics.pdf
>
> With these changes, feel free to add,
>
> Reviewed-by: Devarsh Thakkar <devarsht@ti.com>
Hi Devarsh, Thanks for the review. I will do this in the next revision.
>
> Regards
> Devarsh
>
>> Signed-off-by: Rishikesh Donadkar <r-donadkar@ti.com>
>> ---
>>   .../boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso  | 31 +++++++++++++++++++
>>   1 file changed, 31 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso
>> index dd090813a32d6..149c59c071823 100644
>> --- a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso
>> +++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso
>> @@ -15,6 +15,33 @@ clk_imx219_fixed: imx219-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_1p2v: regulator-1p2v {
>> +		compatible = "regulator-fixed";
>> +		regulator-name = "1P2V";
>> +		regulator-min-microvolt = <1200000>;
>> +		regulator-max-microvolt = <1200000>;
>> +		vin-supply = <&vcc_3v3_sys>;
>> +		regulator-always-on;
>> +	};
>>   };
>>   
>>   &main_i2c2 {
>> @@ -40,6 +67,10 @@ ov5640: camera@10 {
>>   
>>   				clocks = <&clk_imx219_fixed>;
>>   
>> +				VANA-supply = <&reg_2p8v>;
>> +				VDIG-supply = <&reg_1p8v>;
>> +				VDDL-supply = <&reg_1p2v>;
>> +
>>   				reset-gpios = <&exp1 13 GPIO_ACTIVE_HIGH>;
>>   
>>   				port {

[PATCH v1 3/4] arm64: dts: ti: k3-am62x: Add required voltage supplies for OV5640

[Rishikesh Donadkar]

The device tree overlay for 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

Add them in the overlay.

Signed-off-by: Rishikesh Donadkar <r-donadkar@ti.com>
---
 .../boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso  | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso
index 7fc7c95f5cd57..fc77fc77fe0b1 100644
--- a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso
+++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso
@@ -15,6 +15,33 @@ clk_ov5640_fixed: ov5640-xclk {
 		#clock-cells = <0>;
 		clock-frequency = <12000000>;
 	};
+
+	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 {
-- 
2.34.1

Re: [PATCH v1 3/4] arm64: dts: ti: k3-am62x: Add required voltage supplies for OV5640

[Devarsh Thakkar]

On 29/04/25 21:11, Rishikesh Donadkar wrote:
> The device tree overlay for OV5640 requires following voltage
> supplies

As mentioned in ov5640 data-sheet table 8-3 [1]
> 
> 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
> 

[1]:
Link:
https://cdn.sparkfun.com/datasheets/Sensors/LightImaging/OV5640_datasheet.pdf

> Add them in the overlay.
> 
> Signed-off-by: Rishikesh Donadkar <r-donadkar@ti.com>

With above changes,
Reviewed-by: Devarsh Thakkar <devarsht@ti.com>

Regards
Devarsh
> ---
>  .../boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso  | 32 +++++++++++++++++++
>  1 file changed, 32 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso
> index 7fc7c95f5cd57..fc77fc77fe0b1 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso
> +++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso
> @@ -15,6 +15,33 @@ clk_ov5640_fixed: ov5640-xclk {
>  		#clock-cells = <0>;
>  		clock-frequency = <12000000>;
>  	};
> +
> +	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 {

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

[Rishikesh Donadkar]

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

Add them in the DT overlay.

Signed-off-by: Rishikesh Donadkar <r-donadkar@ti.com>
---
 .../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 {
-- 
2.34.1

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

[Devarsh Thakkar]

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 ?

> 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@ti.com>
> ---
>  .../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 {

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@ti.com>
>> ---
>>   .../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 {