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2 commits

Author SHA1 Message Date
Vladimir Kondratyev
9441d948aa LinuxKPI: Implement backlight_enable and backlight_disable functions 
For now, disable backlight if brightness level is set to 0.
In the future we may implement separate knob in backlight(8).

Required by drm-kmod v5.6

Reviewed by:	hselasky, manu
Differential revision:	https://reviews.freebsd.org/D32165

(cherry picked from commit b52e363840)
 2021-10-13 12:06:51 +03:00
Emmanuel Vadot
2b68c97337 linuxkpi: Add backlight support 
Add backlight function to linuxkpi.
Graphics drivers expose the backlight of the panel directly so allow them to use the backlight subsystem so
user can use backlight(8) to configure them.

Reviewed by:	hselasky
Relnotes:	yes
Differential Revision:	The FreeBSD Foundation
 2020-10-02 18:26:41 +00:00