drm/amd/display: Expose target backlight level

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[Why]
DM may want to understand any backlight optimizations
applied, so DM needs a way to query from the HW both
the real current backlight, which may be value during
transition.
And also target backlight, which may be after some
backlight optimizations applied.

[How]
Add interface to query current and target backlight levels
Target level may indicate backlight level after backlight
optimization and reductions are applied.

Signed-off-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Anthony Koo 2018-10-18 15:03:56 -04:00 • committed by Alex Deucher

parent f41a895026

commit ba45df4cb7

2 changed files with 13 additions and 0 deletions

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12

drivers/gpu/drm/amd/display/dc/dce/dce_abm.c

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1

drivers/gpu/drm/amd/display/dc/inc/hw/abm.h

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