From: Sagar Kamble <sagar.a.kamble@xxxxxxxxx>
Due to disabling of RC6 in uncore_sanitize in early resume, power is drained
till it RC6 is re-enabled post resume.
With this change RC6 disabling will be done at beginning of resume only.
This helps yield additional power benefits.
Signed-off-by: Akash Goel <akash.goel@xxxxxxxxx>
Signed-off-by: Sagar Kamble <sagar.a.kamble@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 71be3c9..0e08ec0 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -675,6 +675,13 @@ static int i915_drm_resume(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
+ intel_uncore_early_sanitize(dev, true);
+
+ if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
+ hsw_disable_pc8(dev_priv);
+
+ intel_uncore_sanitize(dev);
+
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
mutex_lock(&dev->struct_mutex);
i915_gem_restore_gtt_mappings(dev);
@@ -761,12 +768,6 @@ static int i915_drm_resume_early(struct drm_device *dev)
if (ret)
DRM_ERROR("Resume prepare failed: %d,Continuing resume\n", ret);
- intel_uncore_early_sanitize(dev, true);
-
- if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
- hsw_disable_pc8(dev_priv);
-
- intel_uncore_sanitize(dev);
intel_power_domains_init_hw(dev_priv);
return ret;
--
1.8.5
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