Re: [PATCH V4 3/4] backlight: qcom-wled: Add WLED5 bindings

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On Mon, Mar 23, 2020 at 11:16:57PM +0530, Kiran Gunda wrote:
> Add WLED5 specific bindings.
> 

More of the same comments here...

> Signed-off-by: Kiran Gunda <kgunda@xxxxxxxxxxxxxx>
> Signed-off-by: Subbaraman Narayanamurthy <subbaram@xxxxxxxxxxxxxx>
> ---
>  .../bindings/leds/backlight/qcom-wled.yaml         | 39 ++++++++++++++++++++++
>  1 file changed, 39 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
> index 8a388bf..159115f 100644
> --- a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
> +++ b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
> @@ -20,6 +20,7 @@ properties:
>         - qcom,pm8941-wled
>         - qcom,pmi8998-wled
>         - qcom,pm660l-wled
> +       - qcom,pm8150l-wled
>  
>    reg:
>      maxItems: 1
> @@ -28,10 +29,23 @@ properties:
>      maxItems: 1
>      description:
>        brightness value on boot, value from 0-4095.
> +      For pm8150l this value vary from 0-4095 or 0-32767
> +      depending on the brightness control mode. If CABC is
> +      enabled 0-4095 range is used.

Constraints.

>      allOf:
>        - $ref: /schemas/types.yaml#/definitions/uint32
>          default: 2048
>  
> +  max-brightness:
> +    maxItems: 1
> +    description:
> +      Maximum brightness level. Allowed values are,
> +      for pmi8998 it is  0-4095.
> +      For pm8150l, this can be either 4095 or 32767.

Constraints!

> +      If CABC is enabled, this is capped to 4095.
> +    allOf:
> +      - $ref: /schemas/types.yaml#/definitions/uint32

Standard property. Assume it has a type definition.'

> +
>    label:
>      maxItems: 1
>      description:
> @@ -124,6 +138,31 @@ properties:
>        value for PM8941 from 1 to 3. Default 2
>        For PMI8998 from 1 to 4.
>  
> +  qcom,modulator-sel:
> +    maxItems: 1
> +    allOf:
> +      - $ref: /schemas/types.yaml#/definitions/uint32
> +    description:
> +      Selects the modulator used for brightness modulation.
> +      Allowed values are,
> +               0 - Modulator A
> +               1 - Modulator B
> +      If not specified, then modulator A will be used by default.
> +      This property is applicable only to WLED5 peripheral.
> +
> +  qcom,cabc-sel:
> +    maxItems: 1
> +    allOf:
> +      - $ref: /schemas/types.yaml#/definitions/uint32
> +    description:
> +      Selects the CABC pin signal used for brightness modulation.
> +      Allowed values are,
> +              0 - CABC disabled
> +              1 - CABC 1
> +              2 - CABC 2
> +              3 - External signal (e.g. LPG) is used for dimming
> +      This property is applicable only to WLED5 peripheral.
> +
>    interrupts:
>      maxItems: 2
>      description:
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
>  a Linux Foundation Collaborative Project
> 
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