diff options
| author | Ken Chalmers <ken.chalmers@amd.com> | 2018-01-17 14:17:40 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-19 14:19:29 -0500 |
| commit | a6e59fa8061b222283c27cafb134fb8f862f0d7c (patch) | |
| tree | 6df2da947b5d954158cfc0bd6135e99dfaf9ec7e /drivers/gpu/drm/amd/display/include | |
| parent | f774b339826439aaccad026e376dcec79b7cbcd1 (diff) | |
drm/amd/display: WBSCL filter init calculation fixes
* Previous code did some calculations with a mix of normal integers and
integers aligned as U2.24 fixed-point values.
* There were bugs in the conversion of the final result into the
S4.19 values required for the registers.
Signed-off-by: Ken Chalmers <ken.chalmers@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/include')
| -rw-r--r-- | drivers/gpu/drm/amd/display/include/fixed31_32.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/include/fixed31_32.h b/drivers/gpu/drm/amd/display/include/fixed31_32.h index 4badaedbaadd..0de258622c12 100644 --- a/drivers/gpu/drm/amd/display/include/fixed31_32.h +++ b/drivers/gpu/drm/amd/display/include/fixed31_32.h @@ -470,4 +470,7 @@ uint32_t dal_fixed31_32_clamp_u0d14( uint32_t dal_fixed31_32_clamp_u0d10( struct fixed31_32 arg); +int32_t dal_fixed31_32_s4d19( + struct fixed31_32 arg); + #endif |