drm/i915: put runtime PM only at the end of intel_mark_idle

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Because intel_mark_idle still touches some registers: it needs the
machine to be awake. If you set both the autosuspend and PC8 delays to
zero, you can get a "Device suspended" WARN when gen6_rps_idle touches
registers.

This is not easy to reproduce, but happens once in a while when
running pm_pc8.

Testcase: igt/pm_pc8
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Paulo Zanoni 2014-02-21 13:52:19 -03:00 • committed by Daniel Vetter

parent ccc7bed05e

commit bb4cdd5345

1 changed files with 4 additions and 3 deletions

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7

drivers/gpu/drm/i915/intel_display.c

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