drm/i915: sanitize forcewake registers on reset

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In reset we try to restore the forcewake state to
pre reset state, using forcewake_count. The reset
doesn't seem to clear the forcewake bits so we
get warn on forcewake ack register not clearing.

Use same mechanism as intel_uncore_sanitize() does
when loading driver to reset the forcewake bits, right
after the chip has been reset.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Mika Kuoppala 2013-08-23 16:52:30 +03:00 • committed by Daniel Vetter

parent a9c1f90c8e

commit 521198a2e7

1 changed files with 8 additions and 1 deletions

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drivers/gpu/drm/i915/intel_uncore.c

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