diff options
| author | Robin Singh <robin.singh@amd.com> | 2019-08-22 21:42:49 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-10-11 03:24:26 +0300 |
| commit | 90d268741f74f7852ebc295c96212c6e992b2078 (patch) | |
| tree | 7439aa2caa219752fc32c1146bf50da5566ed0c7 /drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c | |
| parent | f81b86a043270eb5f7e3a80354bea88d0b43ff6f (diff) | |
| download | linux-90d268741f74f7852ebc295c96212c6e992b2078.tar.xz | |
drm/amd/display: Added pixel dynamic expansion control.
[Why]
To compare the crc of the framebuffer data at input of
display pipeline with the crc of the otg, we need to
disable pixel formatter's dynamic expansion feature during
crc capture and keep it enable in the normal operation.
[HOW]
Expose a new interface in DM and dc for pixel formatter
(fmt dynamic bitdepth expansion control). Interface control
the FMT_DYNAMIC_EXP_EN bit, during crc capture keep
it disabled.
Signed-off-by: Robin Singh <robin.singh@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c index 02c8a3e0b533..0a9ad692f541 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_opp.c @@ -240,6 +240,9 @@ void opp1_set_dyn_expansion( FMT_DYNAMIC_EXP_EN, 0, FMT_DYNAMIC_EXP_MODE, 0); + if (opp->dyn_expansion == DYN_EXPANSION_DISABLE) + return; + /*00 - 10-bit -> 12-bit dynamic expansion*/ /*01 - 8-bit -> 12-bit dynamic expansion*/ if (signal == SIGNAL_TYPE_HDMI_TYPE_A || |