drm: claim PCI device when running in modesetting mode.

Under kernel modesetting, we manage the device at all times, regardless
of VT switching and X servers, so the only decent thing to do is to
claim the PCI device.  In that case, we call the suspend/resume hooks
directly from the pci driver hooks instead of the current class device detour.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>

1 files changed, 38 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index b293ef0bae71..d10ec9e5033c 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -42,6 +42,8 @@ module_param_named(modeset, i915_modeset, int, 0400);
 unsigned int i915_fbpercrtc = 0;
 module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
 
+static struct drm_driver driver;
+
 static struct pci_device_id pciidlist[] = {
         i915_PCI_IDS
 };
@@ -117,6 +119,36 @@ static int i915_resume(struct drm_device *dev)
         return ret;
 }
 
+static int __devinit
+i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+        return drm_get_dev(pdev, ent, &driver);
+}
+
+static void
+i915_pci_remove(struct pci_dev *pdev)
+{
+        struct drm_device *dev = pci_get_drvdata(pdev);
+
+        drm_put_dev(dev);
+}
+
+static int
+i915_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+        struct drm_device *dev = pci_get_drvdata(pdev);
+
+        return i915_suspend(dev, state);
+}
+
+static int
+i915_pci_resume(struct pci_dev *pdev)
+{
+        struct drm_device *dev = pci_get_drvdata(pdev);
+
+        return i915_resume(dev);
+}
+
 static struct vm_operations_struct i915_gem_vm_ops = {
         .fault = i915_gem_fault,
         .open = drm_gem_vm_open,
@@ -172,6 +204,12 @@ static struct drm_driver driver = {
         .pci_driver = {
                  .name = DRIVER_NAME,
                  .id_table = pciidlist,
+                 .probe = i915_pci_probe,
+                 .remove = i915_pci_remove,
+#ifdef CONFIG_PM
+                 .resume = i915_pci_resume,
+                 .suspend = i915_pci_suspend,
+#endif
         },
 
         .name = DRIVER_NAME,