Re: [PATCHv12] video: backlight: gpio-backlight: Add DT support.

From: Jingoo Han
Date: Tue Mar 04 2014 - 04:55:31 EST


On Friday, February 28, 2014 12:22 AM, Lee Jones wrote:
> On Thu, 27 Feb 2014, Denis Carikli wrote:
>
> > Signed-off-by: Denis Carikli <denis@xxxxxxxxxx>
> > ---
> > ChangeLog v11-resend->v12:
> > - Moved the Cc from the commit message to the "email patch".
> > - The documentation is now more clear.
> > - The unnecessary default_on variable was removed.
> > - gbl->fbdev was already NULL and didn't need to be re-assigned,
> > so the re-assignement was removed.
> > - The of_device_id struct and .of_match_table are now guarded
> > against the driver beeing compiled without CONFIG_OF.
> >
> > ChangeLog v11->v11-resend:
> > - Removed the Cc list because it's only one patch.
> >
> > ChangeLog v10->v11:
> > - Shrinked the Cc list.
> > - Fixed the of_match_table warning.
> >
> > ChangeLog v9->v10:
> > - Only the respective maintainers, or people who responded to the patch
> > were kept in the Cc.
> > - The unnecessary of_match_ptr in of_match_table was removed.
> >
> > ChangeLog v8->v9:
> > - Added Shawn Guo in the Cc list.
> > - The default-brightness-level is now a boolean default-on property,
> > the gpio is only touched if the gpio-backlight driver instance probes.
> > - The code and documentation was updated accordingly.
> >
> > ChangeLog v7->v8:
> > - The default-state was renamed to default-brightness-level.
> > - default-brightness-level is now mandatory, like for backlight-pwm,
> > That way we avoid having to handle the case where it's not set,
> > which means that we would need not to set the gpio, but still
> > report a brightness value for sysfs, when not all gpio controllers are
> > able to read the gpio value.
> > - switched the default-brightness-level to boolean values (0 or 1) instead
> > of using strings ("on", "off", "keep").
> > - The documentation was updated accordingly.
> > - The example in the documentation now uses the dts gpio defines.
> > - The "backlight: gpio_backlight: Use a default state enum." patch was then
> > dropped, becuase it is not necessary anymore.
> >
> > ChangeLog v6->v7:
> > - removed a compilation warning with the removal of the useless ret declaration.
> >
> > ChangeLog v5->v6:
> > - The default state handling was reworked:
> > - it's now called default-state, and looks like the gpio-leds default-state.
> > - it now has a "keep" option, like for the gpio-leds.
> > - that "keep" option is the default when the default-state property is not set.
> > - The documentation was updated accordingly.
> >
> > ChangeLog v4->v5:
> > - The default-brightness property now defaults to 0 in the driver.
> > - def_value int becomes a bool.
> > - The check for the gpio validity has been reworked.
> > ---
> > .../bindings/video/backlight/gpio-backlight.txt | 16 ++++++
> > drivers/video/backlight/gpio_backlight.c | 58 +++++++++++++++++---
> > 2 files changed, 67 insertions(+), 7 deletions(-)
> > create mode 100644 Documentation/devicetree/bindings/video/backlight/gpio-backlight.txt
>
> Patch looks good to me now, I just want to see if Jingoo and/or Bryan
> with to add anything. If they don't respond within the next couple of
> days I'll apply the patch.
>
> Acked-by: Lee Jones <lee.jones@xxxxxxxxxx>

Acked-by: Jingoo Han <jg1.han@xxxxxxxxxxx>

Best regards,
Jingoo Han

>
> --
> Lee Jones
> Linaro STMicroelectronics Landing Team Lead
> Linaro.org â Open source software for ARM SoCs
> Follow Linaro: Facebook | Twitter | Blog

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