diff options
| author | Leo (Hanghong) Ma <hanghong.ma@amd.com> | 2024-01-04 21:29:32 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-01-23 01:13:26 +0300 |
| commit | c597479f27b6b96c61c70cb25b5e1a4f9ea4c7f7 (patch) | |
| tree | c5a8cb3770497f943e44be173905b1d8f607a392 /drivers/gpu/drm/amd/display/dc/dsc | |
| parent | aa708057c410175879dcdcdc8bdccd9b1f06e413 (diff) | |
| download | linux-c597479f27b6b96c61c70cb25b5e1a4f9ea4c7f7.tar.xz | |
drm/amd/display: Fix timing bandwidth calculation for HDMI
[Why && How]
The current bandwidth calculation for timing doesn't account for
certain HDMI modes overhead which leads to DSC can't be enabled.
Add support to calculate the actual bandwidth for these HDMI modes.
Reviewed-by: Chris Park <chris.park@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dsc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c index 0df6c55eb326..ac41f9c0a283 100644 --- a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c +++ b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c @@ -137,6 +137,11 @@ uint32_t dc_bandwidth_in_kbps_from_timing( if (link_encoding == DC_LINK_ENCODING_DP_128b_132b) kbps = apply_128b_132b_stream_overhead(timing, kbps); + if (link_encoding == DC_LINK_ENCODING_HDMI_FRL && + timing->vic == 0 && timing->hdmi_vic == 0 && + timing->frl_uncompressed_video_bandwidth_in_kbps != 0) + kbps = timing->frl_uncompressed_video_bandwidth_in_kbps; + return kbps; } |