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Matthias Kaehlcke authored
Use interpolated brightness tables (added by commit 573fe6d1 ("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@chromium.org> Reviewed-by:
Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20191003094137.v2.1.Ic9fd698810ea569c465350154da40b85d24f805b@changeidSigned-off-by:
Heiko Stuebner <heiko@sntech.de>
6233269b