During switcheroo/legacy suspend we don't call the suspend_late handler but
when resuming afterwards we call resume_early. This happened to work so far,
since suspend_late only disabled the PCI device. This changed in
commit 016970beb05da6285c2f3ed2bee1c676cb75972e
Author: Sagar Kamble <sagar.a.kam...@intel.com>
Date: Wed Aug 13 23:07:06 2014 +0530
drm/i915: Sharing platform specific sequence between runtime and system susp
after which we also saved/restored the VLV Gunit HW state in
suspend_late/resume_early. So now since we don't save the state during
suspend a following resume will restore a corrupted state.
Fix this by calling the suspend_late handler during both switcheroo and
legacy suspend.
CC: Sagar Kamble <sagar.a.kam...@intel.com>
Signed-off-by: Imre Deak <imre.d...@intel.com>
---
drivers/gpu/drm/i915/i915_drv.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 89b63fc..ca74d6d 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -648,11 +648,7 @@ int i915_suspend(struct drm_device *dev, pm_message_t
state)
if (error)
return error;
- /* Shut down the device */
- pci_disable_device(dev->pdev);
- pci_set_power_state(dev->pdev, PCI_D3hot);
-
- return 0;
+ return i915_drm_suspend_late(dev);
}
static int i915_drm_thaw_early(struct drm_device *dev)
@@ -769,7 +765,7 @@ static int i915_resume_early(struct drm_device *dev)
return i915_drm_thaw_early(dev);
}
-int i915_resume(struct drm_device *dev)
+static int i915_drm_resume(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
@@ -795,7 +791,12 @@ static int i915_resume_legacy(struct drm_device *dev)
if (ret)
return ret;
- return i915_resume(dev);
+ return i915_drm_resume(dev);
+}
+
+int i915_resume(struct drm_device *dev)
+{
+ return i915_resume_legacy(dev);
}
/**
@@ -980,7 +981,7 @@ static int i915_pm_resume(struct device *dev)
struct pci_dev *pdev = to_pci_dev(dev);
struct drm_device *drm_dev = pci_get_drvdata(pdev);
- return i915_resume(drm_dev);
+ return i915_drm_resume(drm_dev);
}
static int i915_pm_freeze(struct device *dev)
--
1.8.4
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