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Date:   Wed, 11 Sep 2019 13:44:01 -0500
From:   Dan Murphy <dmurphy@...com>
To:     Daniel Thompson <daniel.thompson@...aro.org>,
        Andreas Kemnade <andreas@...nade.info>
CC:     <lee.jones@...aro.org>, <jingoohan1@...il.com>,
        <jacek.anaszewski@...il.com>, <pavel@....cz>, <robh+dt@...nel.org>,
        <mark.rutland@....com>, <b.zolnierkie@...sung.com>,
        <dri-devel@...ts.freedesktop.org>, <linux-leds@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-fbdev@...r.kernel.org>,
        "H. Nikolaus Schaller" <hns@...delico.com>
Subject: Re: [PATCH v2 1/2] dt-bindings: backlight: lm3630a: add enable_gpios

Andreas

On 9/11/19 5:08 AM, Daniel Thompson wrote:
> On Tue, Sep 10, 2019 at 11:29:08PM +0200, Andreas Kemnade wrote:
>> add enable-gpios to describe HWEN pin
>>
>> Signed-off-by: Andreas Kemnade <andreas@...nade.info>
> Acked-by: Daniel Thompson <daniel.thompson@...aro.org>
>
>> ---
>> changes in v2: add example
>>   .../bindings/leds/backlight/lm3630a-backlight.yaml           | 5 +++++
>>   1 file changed, 5 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml b/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml
>> index dc129d9a329e..1fa83feffe16 100644
>> --- a/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml
>> +++ b/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml
>> @@ -29,6 +29,10 @@ properties:
>>     '#size-cells':
>>       const: 0
>>   
>> +  enable-gpios:
>> +    description: GPIO to use to enable/disable the backlight (HWEN pin).
>> +    maxItems: 1
>> +
>>   required:
>>     - compatible
>>     - reg
>> @@ -92,6 +96,7 @@ examples:
>>       i2c {
>>           #address-cells = <1>;
>>           #size-cells = <0>;
>> +        enable-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>;

This is in the wrong place.  This is implying that the gpio is for the 
i2c parent

This needs to go under the led-controller node below

Dan

>>   
>>           led-controller@38 {
>>                   compatible = "ti,lm3630a";
>> -- 
>> 2.20.1
>>

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