drm/i915/hsw: Avoid early timeout during LCPLL disable/restore
Since wait_for_atomic doesn't re-check the wait-for condition after expiry of the timeout it can fail when called from non-atomic context even if the condition is set correctly before the expiry. Fix this by using the non-atomic wait_for instead. Fixes: 0351b939 ("drm/i915: Do not lie about atomic timeout granularity") CC: Chris Wilson <chris@chris-wilson.co.uk> CC: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: NImre Deak <imre.deak@intel.com> Reviewed-by: NTvrtko Ursulin <tvrtko.ursulin@intel.com> CC: drm-intel-fixes@lists.freedesktop.org Link: http://patchwork.freedesktop.org/patch/msgid/1467110253-16046-4-git-send-email-imre.deak@intel.com
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