On Thursday, January 16, 2014 10:19 PM, Denis Carikli wrote:
>
> Cc: Alexander Shiyan <[email protected]>
> Cc: Eric Bénard <[email protected]>
> Cc: Grant Likely <[email protected]>
> Cc: Ian Campbell <[email protected]>
> Cc: Jean-Christophe Plagniol-Villard <[email protected]>
> Cc: Jingoo Han <[email protected]>
> Cc: Kumar Gala <[email protected]>
> Cc: Laurent Pinchart <[email protected]>
> Cc: Lothar Waßmann <[email protected]>
> Cc: Mark Rutland <[email protected]>
> Cc: Pawel Moll <[email protected]>
> Cc: Rob Herring <[email protected]>
> Cc: Thierry Reding <[email protected]>
> CC: [email protected]
> Signed-off-by: Denis Carikli <[email protected]>
> ---
> 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 | 19 +++++++
> drivers/video/backlight/gpio_backlight.c | 60
> +++++++++++++++++---
> 2 files changed, 72 insertions(+), 7 deletions(-)
> create mode 100644
> Documentation/devicetree/bindings/video/backlight/gpio-backlight.txt
>
[.....]
> diff --git a/drivers/video/backlight/gpio_backlight.c
> b/drivers/video/backlight/gpio_backlight.c
> index 81fb127..ec4cf5d 100644
> --- a/drivers/video/backlight/gpio_backlight.c
> +++ b/drivers/video/backlight/gpio_backlight.c
[.....]
> +static struct of_device_id gpio_backlight_of_match[] = {
> + { .compatible = "gpio-backlight" },
> + { /* sentinel */ }
> +};
> +
> static struct platform_driver gpio_backlight_driver = {
> .driver = {
> .name = "gpio-backlight",
> .owner = THIS_MODULE,
> + .of_match_table = &gpio_backlight_of_match,
The following build warning happens.
Would you fix the following build error?
CC drivers/video/backlight/gpio_backlight.o
drivers/video/backlight/gpio_backlight.c:162:3: warning: initialization from
incompatible pointer type [enabled by default]
drivers/video/backlight/gpio_backlight.c:162:3: warning: (near initialization
for ?쁤pio_backlight_driver.driver.of_match_table?? [enabled by default]
Best regards,
Jingoo Han
> },
> .probe = gpio_backlight_probe,
> };
> --
> 1.7.9.5
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