diff options
| author | Imre Deak <imre.deak@intel.com> | 2025-12-15 21:23:42 +0200 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2025-12-19 16:46:30 +0200 |
| commit | 92a73fec6acdcef3f2da7b2d1d4574308ebbe975 (patch) | |
| tree | b27f93a5643efdc9aaed8be7eb70545994b14215 /include/drm | |
| parent | cc1b753487bb23e5a1c96c9864d515690e15b605 (diff) | |
drm/dp: Add drm_dp_dsc_sink_slice_count_mask()
A DSC sink supporting DSC slice count N, not necessarily supports slice
counts less than N. Hence the driver should check the sink's support for
a particular slice count before using that slice count. Add the helper
functions required for this.
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20251215192357.172201-3-imre.deak@intel.com
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/display/drm_dp_helper.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h index df2f24b950e4..85e868238e28 100644 --- a/include/drm/display/drm_dp_helper.h +++ b/include/drm/display/drm_dp_helper.h @@ -206,6 +206,9 @@ drm_dp_is_branch(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) /* DP/eDP DSC support */ u8 drm_dp_dsc_sink_bpp_incr(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE]); +u32 drm_dp_dsc_slice_count_to_mask(int slice_count); +u32 drm_dp_dsc_sink_slice_count_mask(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE], + bool is_edp); u8 drm_dp_dsc_sink_max_slice_count(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE], bool is_edp); u8 drm_dp_dsc_sink_line_buf_depth(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE]); |