drm/i915/bw: Fix num_planes handling on TGL+

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The TGL+ bw code has an off by one error on the num_planes
calculation, and tgl_max_bw_index() incorrectly bumps
the num_planes to 1 from 0.

That approach made sense on ICL where num_planes is more or
less a minimum number of planes to consider for the group,
but on TGL+ num_planes really is a maximum number of planes,
so these adjustments no longer make any sense there.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260522200346.17377-2-ville.syrjala@linux.intel.com
Reviewed-by: Michał Grzelak <michal.grzelak@intel.com>

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Ville Syrjälä 2026-05-22 23:03:37 +03:00

parent 771394b4fb

commit 85bfe1cec2

1 changed files with 1 additions and 7 deletions

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drivers/gpu/drm/i915/display/intel_bw.c

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