https://github.com/torvalds/linux
Revision ab7ad7f6451580aa7eccc0ba62807c872088a8f9 authored by Keith Packard on 03 October 2010, 07:33:06 UTC, committed by Chris Wilson on 03 October 2010, 09:23:26 UTC
Instead of waiting for the display line value to settle, we can simply
wait for the pipe configuration register 'state' bit to turn off.

Contrarywise, disabling the plane will not cause the display line
value to stop changing, so instead we wait for the vblank interrupt
bit to get set. And, we only do this when we're not about to wait for
the pipe to turn off.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
1 parent b99a9d9
History
Tip revision: ab7ad7f6451580aa7eccc0ba62807c872088a8f9 authored by Keith Packard on 03 October 2010, 07:33:06 UTC
drm/i915: Use pipe state to tell when pipe is off
Tip revision: ab7ad7f
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