[PATCH v4 1/2] dt-bindings: backlight: lm3630a: add enable_gpios

Andreas Kemnade andreas at kemnade.info
Tue Oct 29 12:16:26 UTC 2019


Hi,

On Mon, 28 Oct 2019 18:25:56 -0500
Rob Herring <robh+dt at kernel.org> wrote:

> On Thu, Sep 12, 2019 at 4:33 PM Andreas Kemnade <andreas at kemnade.info> wrote:
> >
> > add enable-gpios to describe HWEN pin
> >
> > Signed-off-by: Andreas Kemnade <andreas at kemnade.info>
> > Acked-by: Daniel Thompson <daniel.thompson at linaro.org>  
> 
> This breaking linux-next now...
> 
oops, sorry. 

> > ---
> > changes in v2: added example
> > changes in v3: added Acked-by
> > changes in v4: moved enable-gpios to the right position
> >   in the 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..c8470628fe02 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
> > @@ -96,6 +100,7 @@ examples:
> >          led-controller at 38 {
> >                  compatible = "ti,lm3630a";
> >                  reg = <0x38>;
> > +                enable-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>;  
> 
> Error: Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.example.dts:24.46-47
> syntax error
> FATAL ERROR: Unable to parse input tree
> make[1]: *** [Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.example.dt.yaml]
> Error 1
> scripts/Makefile.lib:314: recipe for target
> 'Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.example.dt.yaml'
> failed
> 
> You need the include for the define.

gpio/gpio.h is missing.
Yes, was not aware of that these things will be compiled and the automatic
check did not work on my system at all. So I decided not to fix that for just
this simple thing which was a not so good idea.
Will send a fixup.

Regards,
Andreas
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