drm/i915: Preserve current RPS frequency across init

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Select idle frequency during initialisation, then reset the last known
frequency when re-enabling. This allows us to preserve the user selected
frequency across resets.

v2: Stop CHV from overriding the user's choice in cherryview_enable_rps()

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1468397438-21226-2-git-send-email-chris@chris-wilson.co.uk

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Chris Wilson 2016-07-13 09:10:32 +01:00

parent b913b33c43

commit 3a45b05c45

1 changed files with 20 additions and 26 deletions

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46

drivers/gpu/drm/i915/intel_pm.c

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