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drm/i915/dp: Fix the computation for compressed_bpp for DISPLAY < 13

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BugLink: https://bugs.launchpad.net/bugs/2065400

commit f7caddfd558e32db0ae944256e623a259538b357 upstream.

For DISPLAY < 13, compressed bpp is chosen from a list of
supported compressed bpps. Fix the condition to choose the
appropriate compressed bpp from the list.

Fixes: 1c56e9a398 ("drm/i915/dp: Get optimal link config to have best compressed bpp")
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: <stable@vger.kernel.org> # v6.7+
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/10162
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240305054443.2489895-1-ankit.k.nautiyal@intel.com
(cherry picked from commit 5a1da42b50f3594e18738885c2f23ed36629dd00)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Ankit Nautiyal
2024-03-05 11:14:43 +05:30
committed by Stefan Bader
parent 72294fef4c
commit 35ed81fa2e
1 changed files with 3 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpu/drm/i915/display/intel_dp.c
+3 -2
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@@ -1916,8 +1916,9 @@ icl_dsc_compute_link_config(struct intel_dp *intel_dp,
dsc_max_bpp = min(dsc_max_bpp, pipe_bpp - 1);
for (i = 0; i < ARRAY_SIZE(valid_dsc_bpp); i++) {
if (valid_dsc_bpp[i] < dsc_min_bpp ||
valid_dsc_bpp[i] > dsc_max_bpp)
if (valid_dsc_bpp[i] < dsc_min_bpp)
continue;
if (valid_dsc_bpp[i] > dsc_max_bpp)
break;
ret = dsc_compute_link_config(intel_dp,