diff options
| author | Imre Deak <imre.deak@intel.com> | 2025-12-22 17:35:30 +0200 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2026-01-13 18:42:12 +0200 |
| commit | 85b4360d2b72b4a38497f5267da5cb817dd91b34 (patch) | |
| tree | 6b92c21bc4bbe87ed8a370680ca9b4d3c0886df7 /drivers/gpu | |
| parent | 7427f30e5c4938ebe813aa46e578cb5afc375de4 (diff) | |
drm/i915/dp: Factor out align_max_sink_dsc_input_bpp()
Factor out align_max_sink_dsc_input_bpp(), also used later for computing
the maximum DSC input BPP limit.
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20251222153547.713360-4-imre.deak@intel.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index cc0549b41045..5b08d308ead1 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1894,12 +1894,27 @@ int intel_dp_dsc_max_src_input_bpc(struct intel_display *display) return intel_dp_dsc_min_src_input_bpc(); } +static int align_max_sink_dsc_input_bpp(const struct intel_connector *connector, + int max_pipe_bpp) +{ + u8 dsc_bpc[3]; + int num_bpc; + int i; + + num_bpc = drm_dp_dsc_sink_supported_input_bpcs(connector->dp.dsc_dpcd, + dsc_bpc); + for (i = 0; i < num_bpc; i++) { + if (dsc_bpc[i] * 3 <= max_pipe_bpp) + return dsc_bpc[i] * 3; + } + + return 0; +} + int intel_dp_dsc_compute_max_bpp(const struct intel_connector *connector, u8 max_req_bpc) { struct intel_display *display = to_intel_display(connector); - int i, num_bpc; - u8 dsc_bpc[3] = {}; int dsc_max_bpc; dsc_max_bpc = intel_dp_dsc_max_src_input_bpc(display); @@ -1909,14 +1924,7 @@ int intel_dp_dsc_compute_max_bpp(const struct intel_connector *connector, dsc_max_bpc = min(dsc_max_bpc, max_req_bpc); - num_bpc = drm_dp_dsc_sink_supported_input_bpcs(connector->dp.dsc_dpcd, - dsc_bpc); - for (i = 0; i < num_bpc; i++) { - if (dsc_max_bpc >= dsc_bpc[i]) - return dsc_bpc[i] * 3; - } - - return 0; + return align_max_sink_dsc_input_bpp(connector, dsc_max_bpc * 3); } static int intel_dp_source_dsc_version_minor(struct intel_display *display) |