This commit adds supply properties for the sensor, I2C bus and IR LED
anode supplies [1], which can be found in vcnl4000 ambient light and
proximity sensors, to ensure the sensor is powered on before proceeding
with setup.

[1] https://www.vishay.com/docs/84274/vcnl4040.pdf

Signed-off-by: Erikas Bitovtas <xerikasxx@gmail.com>
---
 Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml b/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml
index 2ba4d5de4ec4..a1b4c02db246 100644
--- a/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml
+++ b/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml
@@ -33,6 +33,10 @@ properties:
   interrupts:
     maxItems: 1
 
+  vdd-supply: true
+  vddio-supply: true
+  vled-supply: true
+
   reg:
     maxItems: 1
 
@@ -54,6 +58,9 @@ examples:
             compatible = "vishay,vcnl4200";
             reg = <0x51>;
             proximity-near-level = <220>;
+            vdd-supply = <&reg_vdd>;
+            vddio-supply = <&reg_vddio>;
+            vled-supply = <&reg_vled>;
         };
     };
 ...

-- 
2.53.0

On Sat, Mar 14, 2026 at 06:06:30PM +0200, Erikas Bitovtas wrote:
> This commit adds supply properties for the sensor, I2C bus and IR LED

Please do not use "This commit/patch/change", but imperative mood. See
longer explanation here:
https://elixir.bootlin.com/linux/v6.16/source/Documentation/process/submitting-patches.rst#L94

> anode supplies [1], which can be found in vcnl4000 ambient light and

So other devices do not have these supplies? Or have only some?

You already received that question, so I assume you checked. Then check
again because 4040 has VDD.

thus in
that case 

> proximity sensors, to ensure the sensor is powered on before proceeding
> with setup.
> 
> [1] https://www.vishay.com/docs/84274/vcnl4040.pdf
> 
> Signed-off-by: Erikas Bitovtas <xerikasxx@gmail.com>
> ---
>  Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml b/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml
> index 2ba4d5de4ec4..a1b4c02db246 100644
> --- a/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml
> +++ b/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml
> @@ -33,6 +33,10 @@ properties:
>    interrupts:
>      maxItems: 1
>  
> +  vdd-supply: true
> +  vddio-supply: true

VCNL4000 does not have VDDIO and VLED pins.

Best regards,
Krzysztof

On 3/15/26 10:49 AM, Krzysztof Kozlowski wrote:
> On Sat, Mar 14, 2026 at 06:06:30PM +0200, Erikas Bitovtas wrote:
>> This commit adds supply properties for the sensor, I2C bus and IR LED
> 
> Please do not use "This commit/patch/change", but imperative mood. See
> longer explanation here:
> https://elixir.bootlin.com/linux/v6.16/source/Documentation/process/submitting-patches.rst#L94
> 
>> anode supplies [1], which can be found in vcnl4000 ambient light and
> 
> So other devices do not have these supplies? Or have only some?
> 
> You already received that question, so I assume you checked. Then check
> again because 4040 has VDD.
> 

VLED is supposed to be the IR anode pin. Every model has one. It is pin
1 on vcnl4000, vcnl4010 and vcnl4020, pin 6 on vcnl4200 and pin 4 on
vcnl4040.
VDD pin is pin 7 on vcnl4000 and vcnl4010, pin 5 on vcnl4020 and pin 3
on vcnl4040 and vcnl4200.
VDDIO is an external supply to the I2C bus for the sensor.

> thus in
> that case 
> 
>> proximity sensors, to ensure the sensor is powered on before proceeding
>> with setup.
>>
>> [1] https://www.vishay.com/docs/84274/vcnl4040.pdf
>>
>> Signed-off-by: Erikas Bitovtas <xerikasxx@gmail.com>
>> ---
>>  Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml | 7 +++++++
>>  1 file changed, 7 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml b/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml
>> index 2ba4d5de4ec4..a1b4c02db246 100644
>> --- a/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml
>> +++ b/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml
>> @@ -33,6 +33,10 @@ properties:
>>    interrupts:
>>      maxItems: 1
>>  
>> +  vdd-supply: true
>> +  vddio-supply: true
> 
> VCNL4000 does not have VDDIO and VLED pins.
> 
> Best regards,
> Krzysztof
>