drm/i915/gen9: Fix PCODE polling timeout in stable backport

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 <tmb@mageia.org>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 985cb31f4b44..22313980789b 100644
--- 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_private *dev_priv, u32 mbox, u32 request,
          * 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: