drm/i915: Add helpers to reference/unreference a DPLL for a CRTC

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Add helpers to reference/unreference a shared DPLL tracking the use of
it by a given CRTC.

This prepares for the next patch, which unreferences a DPLL during CRTC
HW-readout/sanitization.

Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230510103131.1618266-3-imre.deak@intel.com

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This commit is contained in:

Imre Deak 2023-05-10 13:31:19 +03:00

parent 7eeef32719

commit 0694cab1d5

1 changed files with 46 additions and 12 deletions

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58

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

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