drm: add support for passing state into the suspend hooks.
fix i915 driver to use state for hibernate save avoidance.
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/char/drm/i915_drv.c b/drivers/char/drm/i915_drv.c
index 35758a6..4048f39 100644
--- a/drivers/char/drm/i915_drv.c
+++ b/drivers/char/drm/i915_drv.c
@@ -238,7 +238,7 @@
}
-static int i915_suspend(struct drm_device *dev)
+static int i915_suspend(struct drm_device *dev, pm_message_t state)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int i;
@@ -249,6 +249,9 @@
return -ENODEV;
}
+ if (state.event == PM_EVENT_PRETHAW)
+ return 0;
+
pci_save_state(dev->pdev);
pci_read_config_byte(dev->pdev, LBB, &dev_priv->saveLBB);
@@ -363,9 +366,11 @@
i915_save_vga(dev);
- /* Shut down the device */
- pci_disable_device(dev->pdev);
- pci_set_power_state(dev->pdev, PCI_D3hot);
+ if (state.event == PM_EVENT_SUSPEND) {
+ /* Shut down the device */
+ pci_disable_device(dev->pdev);
+ pci_set_power_state(dev->pdev, PCI_D3hot);
+ }
return 0;
}