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drm/i915: Force GPU Freq to lowest while suspending.

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We might be leaving the GPU Frequency (and thus vnn) high during the suspend.
Force gt to move to lowest freq while suspending.

v2: Fixed typo in commit message (Deepak)

v3: Force gt to lowest freq in suspend_gt_powersave (Daniel)

v4: Add GPU min freq set _after_ we've cancelled the rps works (Daniel)

Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Deepak S
2014-06-20 20:03:02 +05:30
committed by Daniel Vetter
parent f96de58fc7
commit b47adc1792
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/intel_pm.c
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@@ -4974,6 +4974,9 @@ void intel_suspend_gt_powersave(struct drm_device *dev)
flush_delayed_work(&dev_priv->rps.delayed_resume_work);
cancel_work_sync(&dev_priv->rps.work);
/* Force GPU to min freq during suspend */
gen6_rps_idle(dev_priv);
}
void intel_disable_gt_powersave(struct drm_device *dev)