[Intel-gfx] [PATCH] drm/i915/vlv: drop punit freq staus read after setting idle

[Jesse Barnes]

This may take awhile (~10ms), and we don't need to make noise about it.

References: https://bugs.freedesktop.org/show_bug.cgi?id=75244
Tested-by: huax.lu at intel.com
Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
---
 drivers/gpu/drm/i915/intel_pm.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index ee27d74..4eebfd8 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3227,10 +3227,6 @@ static void vlv_set_rps_idle(struct drm_i915_private *dev_priv)
 	vlv_punit_write(dev_priv, PUNIT_REG_GPU_FREQ_REQ,
 					dev_priv->rps.min_freq_softlimit);
 
-	if (wait_for(((vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS))
-				& GENFREQSTATUS) == 0, 5))
-		DRM_ERROR("timed out waiting for Punit\n");
-
 	vlv_force_gfx_clock(dev_priv, false);
 
 	I915_WRITE(GEN6_PMINTRMSK,
-- 
1.8.3.2