4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Imre Deak <imre.d...@intel.com>
The backport of
2c7d0602c - "Fix PCODE polling during CDCLK change notification"
to the 4.9 stable tree used an incorrect timeout value. Fix this up
so the backport matches the upstream commit.
Reported-by: Thomas Backlund <t...@mageia.org>
Signed-off-by: Imre Deak <imre.d...@intel.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/gpu/drm/i915/intel_pm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -8015,14 +8015,14 @@ int skl_pcode_request(struct drm_i915_pr
* worst case) _and_ PCODE was busy for some reason even after a
* (queued) request and @timeout_base_ms delay. As a workaround retry
* the poll with preemption disabled to maximize the number of
- * requests. Increase the timeout from @timeout_base_ms to 50ms to
+ * requests. Increase the timeout from @timeout_base_ms to 10ms to
* account for interrupts that could reduce the number of these
* requests.
*/
DRM_DEBUG_KMS("PCODE timeout, retrying with preemption disabled\n");
WARN_ON_ONCE(timeout_base_ms > 3);
preempt_disable();
- ret = wait_for_atomic(COND, 50);
+ ret = wait_for_atomic(COND, 10);
preempt_enable();
out:
