drm/i915: Suppress old PLL pipe_mask checks for MG/TC/TBT PLLs

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TC ports have both the MG/TC and TBT PLLs selected simultanously (so
that we can switch from MG/TC to TBT as a fallback). This doesn't play
well with the state checker that assumes that the old PLL shouldn't
have the pipe in its pipe_mask anymore. Suppress that check for these
PLLs to avoid spurious WARNs when you disconnect a TC port and a
non-disabling modeset happens before actually disabling the port.

v2: Only suppress when one of the PLLs is the TBT PLL and the
    other one is not

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/9816
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240123093137.9133-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>

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This commit is contained in:

Ville Syrjälä 2024-01-23 11:31:36 +02:00

parent d283ee5662

commit 33c7760226

2 changed files with 23 additions and 4 deletions

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23

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

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4

drivers/gpu/drm/i915/display/intel_dpll_mgr.h

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