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drm/i915/dsc: Expose dsc sink max slice count via debugfs

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Number of DSC slices can be shown in the DSC debugfs so that
test can take a call whether the configuration can support forcing
bigjoiner/ultrajoiner.

v2: used intel_dp_is_edp() as the parameter to
    drm_dp_dsc_sink_max_slice_count() (Jani N)

Reviewed-by: Nemesa Garg <nemesa.garg@intel.com> (v1)
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/3387
Signed-off-by: Swati Sharma <swati2.sharma@intel.com>
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241213093008.2149452-1-swati2.sharma@intel.com
This commit is contained in:
Swati Sharma
2024-12-13 15:00:08 +05:30
committed by Jouni Högander
parent 3e10457f4f
commit 1e28fbf8cb
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/display/intel_display_debugfs.c
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@@ -1015,6 +1015,8 @@ 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));
seq_printf(m, "DSC_Sink_Max_Slice_Count: %d\n",
drm_dp_dsc_sink_max_slice_count((connector->dp.dsc_dpcd), intel_dp_is_edp(intel_dp)));
seq_printf(m, "Force_DSC_Enable: %s\n",
str_yes_no(intel_dp->force_dsc_en));
if (!intel_dp_is_edp(intel_dp))