drm/i915: Take a runtime pm wakeref for atomic commits

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Before we start prepping the system for an atomic modeset, wake the
device up. We then keep track of this wakeref until we complete the
atomic commit, so we hold keep the device awake for all potential HW
access, and do not allow the device to sleep with a pending modeset.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110771
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190528075354.22341-1-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2019-05-28 08:53:54 +01:00

parent 1ac159e23c

commit 2e2f08d02d

2 changed files with 7 additions and 0 deletions

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5

drivers/gpu/drm/i915/intel_display.c

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2

drivers/gpu/drm/i915/intel_drv.h

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