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| author | Yongqiang Sun | 2016-12-12 20:20:45 +0100 |
|---|---|---|
| committer | Alex Deucher | 2017-09-26 23:05:05 +0200 |
| commit | 88499197de090c9bb391cc11bf9410b9f020092f (patch) | |
| tree | 504eefe1bf1036c71cea04ef875d1f6a98b85cb8 /drivers/gpu/drm/amd/display/dc/basics | |
| parent | drm/amd/display: re gamma programming (diff) | |
| download | kernel-qcow2-linux-88499197de090c9bb391cc11bf9410b9f020092f.tar.gz kernel-qcow2-linux-88499197de090c9bb391cc11bf9410b9f020092f.tar.xz kernel-qcow2-linux-88499197de090c9bb391cc11bf9410b9f020092f.zip | |
drm/amd/display: Moved swizzle parameter translation to dc.
Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/basics')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/basics/conversion.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/basics/conversion.h | 2 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/basics/conversion.c b/drivers/gpu/drm/amd/display/dc/basics/conversion.c index ebe14e17cc2e..5682fea2080d 100644 --- a/drivers/gpu/drm/amd/display/dc/basics/conversion.c +++ b/drivers/gpu/drm/amd/display/dc/basics/conversion.c @@ -221,3 +221,12 @@ void calculate_adjustments_y_only( adjustments->brightness); } +unsigned int log_2(unsigned int num) +{ + unsigned int result = 0; + + while ((num >>= 1) != 0) + result++; + + return result; +} diff --git a/drivers/gpu/drm/amd/display/dc/basics/conversion.h b/drivers/gpu/drm/amd/display/dc/basics/conversion.h index 18cbe41e80ff..b7fe431a7952 100644 --- a/drivers/gpu/drm/amd/display/dc/basics/conversion.h +++ b/drivers/gpu/drm/amd/display/dc/basics/conversion.h @@ -48,4 +48,6 @@ void calculate_adjustments_y_only( const struct dc_csc_adjustments *adjustments, struct fixed31_32 *matrix); +unsigned int log_2(unsigned int num); + #endif |