backlight: pwm_bl: Set scale type for CIE 1931 curves

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For backlight curves calculated with the CIE 1931 algorithm set
the brightness scale type to non-linear. This makes the scale type
available to userspace via the 'scale' sysfs attribute.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

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Matthias Kaehlcke 2019-07-09 12:00:06 -07:00 • committed by Lee Jones

parent d55c028f8b

commit 511a204638

1 changed files with 4 additions and 1 deletions

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5

drivers/video/backlight/pwm_bl.c

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