Re: [PATCH v2] dell-laptop: Fix keyboard led max_brightness property for Dell Latitude E6410

[Andy Shevchenko]

On Wed, Oct 18, 2017 at 9:06 PM, Pali RohÃr <pali.rohar@xxxxxxxxx> wrote:
> This machine reports number of keyboard backlight led levels, instead of
> value of the last led level index. Therefore max_brightness properly needs
> to be subtracted by 1 to match led max_brightness API.
>
> Signed-off-by: Pali RohÃr <pali.rohar@xxxxxxxxx>
> Reported-by: Gabriel M. Elder <gabriel@xxxxxxxxxxxxxx>
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=196913

> +       u8 kbd_led_num_of_levels_instead_of_last_index;

Sorry for last minute review comments.

First of all, can it be just boolean?

Naming... Yes, too hard as always was, is and will be.

What about just

kbd_led_use_levels?

Also, does it make sense to create a quirks as an unsigned long and
put there corresponding bits with definitions?

/* Comment what is this for */
#define QUIRK_KBD_LED_USE_LEVELS   0

unsigned long quirks;

?

> +       if (quirks && quirks->kbd_led_num_of_levels_instead_of_last_index && info->levels)
> +               info->levels--;

With last suggestion if becomes something like

if (quirks & BIT(QUIRK_KBD_LED_USE_LEVELS) && info->levels)


-- 
With Best Regards,
Andy Shevchenko