drm/i915: Disable PSR around cdclk changes

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AUX logic is often clocked from cdclk. Disable PSR to make sure
there are no hw initiated AUX transactions in flight while we
change the cdclk frequency.

Cc: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210608085415.515342-2-gwan-gyeong.mun@intel.com

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Ville Syrjälä 2021-06-08 11:54:15 +03:00 • committed by José Roberto de Souza

parent 234b40282e

commit 17c1a4b7ac

1 changed files with 13 additions and 0 deletions

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

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