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authorImre Deak <imre.deak@intel.com>2016-06-28 13:37:32 +0300
committerJani Nikula <jani.nikula@intel.com>2016-06-29 11:18:04 +0300
commitfa7c13e5b1e2076b0ec716ed584ab76f9e65b7a6 (patch)
treec091a063780a5c3ba38505ee36373bca00b2b1e2 /README
parent11f6145791775ce41b8993fd29e19eb53ef0ff14 (diff)
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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: 0351b93992aa ("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: Imre Deak <imre.deak@intel.com> Reviewed-by: Tvrtko 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 (cherry picked from commit f53dd63f1119a98a16d1a5a7cb3277a2f1ff483d) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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