Expose dsc sink max slice count via i915_dsc_fec_support debugfs. This debugfs entry is required in cases, where sink doesn't support minimum of 8 slices in case of ultrajoiner and minimum of 4 slices in case of big joiner.
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/3387 Signed-off-by: Swati Sharma <[email protected]> --- drivers/gpu/drm/i915/display/intel_display_debugfs.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c index 3eb7565cd83c..4823d27cafb5 100644 --- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c +++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c @@ -1013,6 +1013,12 @@ static int i915_dsc_fec_support_show(struct seq_file *m, void *data) DP_DSC_YCbCr444))); seq_printf(m, "DSC_Sink_BPP_Precision: %d\n", drm_dp_dsc_sink_bpp_incr(connector->dp.dsc_dpcd)); + if (intel_dp_is_edp(intel_dp)) + seq_printf(m, "DSC_Sink_Max_Slice_Count: %d\n", + drm_dp_dsc_sink_max_slice_count((connector->dp.dsc_dpcd), true)); + else + seq_printf(m, "DSC_Sink_Max_Slice_Count: %d\n", + drm_dp_dsc_sink_max_slice_count((connector->dp.dsc_dpcd), false)); seq_printf(m, "Force_DSC_Enable: %s\n", str_yes_no(intel_dp->force_dsc_en)); if (!intel_dp_is_edp(intel_dp)) -- 2.25.1
