drm/i915/bw: Initialize num_planes sensibly for the first plane group in TGL+

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The way the TGL+ bw algorithm works is that 'num_planes'
is really a maximum number of allowed planes (whereas in
the ICL version it was more of a minimum), and the
assumption is that the first plane group (max[0]) can be
used with any number of planes (tgl_max_bw_index() always
returns 0 at the end).

To make things a bit less weird let's just set the first
plane group's num_planes to some big number to indicate it
has no real limit on the number of planes.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260528103458.18069-4-ville.syrjala@linux.intel.com
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>

...

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Ville Syrjälä 2026-05-28 13:34:50 +03:00

parent fd5f8a3a92

commit 8965d70181

1 changed files with 6 additions and 3 deletions

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

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