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drm/i915/dp: Simplify helper to get slice count with joiner

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When bigjoiner is used, we need at least 2 dsc slices per pipe.
Modify the condition in intel_dp_dsc_get_slice_count() to reflect the
same.

Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240930163549.416410-11-ankit.k.nautiyal@intel.com
This commit is contained in:
Stanislav Lisovskiy 2024-09-30 22:05:46 +05:30 committed by Ankit Nautiyal
parent 94d949103d
commit f84be3b3f8
1 changed files with 6 additions and 2 deletions
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8
drivers/gpu/drm/i915/display/intel_dp.c
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@ -1022,8 +1022,12 @@ u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector,
drm_dp_dsc_sink_max_slice_count(connector->dp.dsc_dpcd, false))
break;
/* big joiner needs small joiner to be enabled */
if (num_joined_pipes == 2 && test_slice_count < 4)
/*
* Bigjoiner needs small joiner to be enabled.
* So there should be at least 2 dsc slices per pipe,
* whenever bigjoiner is enabled.
*/
if (num_joined_pipes > 1 && valid_dsc_slicecount[i] < 2)
continue;
if (min_slice_count <= test_slice_count)