Re: [PATCH v2] ARM: dts: rockchip: Use interpolated brightness tables for veyron
From: Heiko Stuebner
Date: Thu Oct 10 2019 - 17:23:57 EST
Am Donnerstag, 3. Oktober 2019, 18:41:52 CEST schrieb Matthias Kaehlcke:
> Use interpolated brightness tables (added by commit 573fe6d1c25
> ("backlight: pwm_bl: Linear interpolation between
> brightness-levels") for veyron, instead of specifying every single
> step. Some devices/panels have intervals that are smaller than
> the specified 'num-interpolated-steps', the driver interprets
> these intervals as a single step.
> Another option would be to switch to a perceptual brightness curve
> (CIE 1931), with the caveat that it would change the behavior of
> the backlight. Also the concept of a minimum brightness level is
> currently not supported for CIE 1931 curves.
> Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
applied for 5.5