[PATCH 1/2] leds: add DT support for LEDs wired to supply and default brightness

[Uwe Kleine-König]

On Thu, Mar 27, 2014 at 03:28:32PM -0700, Bryan Wu wrote:
> On Fri, Feb 28, 2014 at 1:25 PM, Russell King
> <rmk+kernel at arm.linux.org.uk> wrote:
> > Some PWM outputs are wired such that the LED they're controlling is
> > connected to supply rather than ground.  Therefore, the duty cycle
> > needs to be inverted to make the LED behave as it should do.
> >
> > We also provide a way to specify the default brightness when a
> > trigger is not specified.
> >
> > Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
> > ---
> >  Documentation/devicetree/bindings/leds/leds-pwm.txt |  3 +++
> >  drivers/leds/leds-pwm.c                             | 15 +++++++++++----
> >  2 files changed, 14 insertions(+), 4 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/leds/leds-pwm.txt b/Documentation/devicetree/bindings/leds/leds-pwm.txt
> > index 7297107cf832..ffcb74ab61fd 100644
> > --- a/Documentation/devicetree/bindings/leds/leds-pwm.txt
> > +++ b/Documentation/devicetree/bindings/leds/leds-pwm.txt
> > @@ -13,6 +13,9 @@ node's name represents the name of the corresponding LED.
> >    For the pwms and pwm-names property please refer to:
> >    Documentation/devicetree/bindings/pwm/pwm.txt
> >  - max-brightness : Maximum brightness possible for the LED
> > +- default-brightness : (optional) Default brightness for the LED
> > +- active-low : (optional) For PWMs where the LED is wired to supply
> > +  rather than ground.
> >  - label :  (optional)
> >    see Documentation/devicetree/bindings/leds/common.txt
> >  - linux,default-trigger :  (optional)
> 
> Why remove "max-brightness", "label" and "linux,default-trigger" here?
They are not removed, they are just unchanged list items after literal
'-'s in the context of the patch.

Best regards
Uwe

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