linux-kernel - Re: [PATCH V5 3/4] backlight: qcom-wled: Add WLED5 bindings

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Message-ID: <20200420162000.cmqhk5kphijd2m2d@holly.lan>
Date:   Mon, 20 Apr 2020 17:20:00 +0100
From:   Daniel Thompson <daniel.thompson@...aro.org>
To:     Kiran Gunda <kgunda@...eaurora.org>
Cc:     bjorn.andersson@...aro.org, jingoohan1@...il.com,
        lee.jones@...aro.org, b.zolnierkie@...sung.com,
        dri-devel@...ts.freedesktop.org, jacek.anaszewski@...il.com,
        pavel@....cz, robh+dt@...nel.org, mark.rutland@....com,
        linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Dan Murphy <dmurphy@...com>,
        linux-arm-msm@...r.kernel.org,
        Subbaraman Narayanamurthy <subbaram@...eaurora.org>
Subject: Re: [PATCH V5 3/4] backlight: qcom-wled: Add WLED5 bindings

On Tue, Apr 07, 2020 at 09:17:09PM +0530, Kiran Gunda wrote:
> Add WLED5 specific bindings.
> 
> Signed-off-by: Kiran Gunda <kgunda@...eaurora.org>
> Signed-off-by: Subbaraman Narayanamurthy <subbaram@...eaurora.org>

If v6 is just reacting to Rob's feedback then feel free to add the
following when you recirculate:

Acked-by: Daniel Thompson <daniel.thompson@...aro.org>


> ---
>  .../bindings/leds/backlight/qcom-wled.yaml         | 60 ++++++++++++++++++++--
>  1 file changed, 57 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
> index 770e780..5714631 100644
> --- a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
> +++ b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
> @@ -21,6 +21,7 @@ properties:
>        - qcom,pm8941-wled
>        - qcom,pmi8998-wled
>        - qcom,pm660l-wled
> +      - qcom,pm8150l-wled
>  
>    reg:
>      maxItems: 1
> @@ -28,12 +29,13 @@ properties:
>    default-brightness:
>      description:
>        brightness value on boot.
> -    minimum: 0
> -    maximum: 4095
> -    default: 2048
>  
>    label: true
>  
> +  max-brightness:
> +    description:
> +      Maximum brightness level.
> +
>    qcom,cs-out:
>      description:
>        enable current sink output.
> @@ -130,6 +132,31 @@ properties:
>        This feature is not supported for WLED3.
>      type: boolean
>  
> +  qcom,modulator-sel:
> +    description:
> +      Selects the modulator used for brightness modulation.
> +      Allowed values are,
> +           0 - Modulator A
> +           1 - Modulator B
> +      This property is applicable only to WLED5 peripheral.
> +    allOf:
> +      - $ref: /schemas/types.yaml#/definitions/uint32
> +      - enum: [ 0, 1 ]
> +      - default: 0
> +
> +  qcom,cabc-sel:
> +    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.
> +    allOf:
> +      - $ref: /schemas/types.yaml#/definitions/uint32
> +      - enum: [ 0, 1, 2, 3 ]
> +
>  allOf:
>    - if:
>        properties:
> @@ -179,6 +206,33 @@ allOf:
>              - const: ovp
>              - const: short
>  
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,pm8150l-wled
> +
> +    then:
> +      properties:
> +        default-brightness:
> +          minimum: 0
> +          maximum: 32767
> +        
> +        max-brightness:
> +          minimum: 0
> +          maximum: 32767
> +
> +    else:
> +      properties:
> +        default-brightness:
> +            minimum: 0
> +            maximum: 4095
> +        
> +        max-brightness:
> +          minimum: 0
> +          maximum: 4095
> +
>  required:
>    - compatible
>    - reg
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
>  a Linux Foundation Collaborative Project