Hello.
On 02-12-2010 17:10, Hao Wu wrote:
From: Jiebing Li<hao.wu@xxxxxxxxx>
This patch enables runtime pm support for langwell_udc controller driver.
Signed-off-by: Jiebing Li<jiebing.li@xxxxxxxxx>
Signed-off-by: Hao Wu<hao.wu@xxxxxxxxx>
[...]
diff --git a/drivers/usb/gadget/langwell_udc.c b/drivers/usb/gadget/langwell_udc.c
index e5d11e9..e3e689c 100644
--- a/drivers/usb/gadget/langwell_udc.c
+++ b/drivers/usb/gadget/langwell_udc.c
[...]
@@ -3459,6 +3466,67 @@ static int langwell_udc_resume(struct pci_dev *pdev)
}
+#ifdef CONFIG_PM_RUNTIME
+/* device controller runtime suspend */
+static int langwell_udc_runtime_suspend(struct device *device)
+{
+ struct langwell_udc *dev = the_controller;
+ struct pci_dev *pdev;
+
+ dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);
+
+ pdev = to_pci_dev(device);
+
+ /* save PCI state */
+ pci_save_state(pdev);
+
+ /* disable PCI device */
+ pci_disable_device(pdev);
+
+ /* set device power state */
+ pci_set_power_state(pdev, PCI_D3hot);
Is there really a need in such self-obvious comments?
[...]
+/* device controller runtime resume */
+static int langwell_udc_runtime_resume(struct device *device)
+{
+ struct langwell_udc *dev = the_controller;
+ struct pci_dev *pdev;
+
+ dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);
+
+ pdev = to_pci_dev(device);
+
+ /* set device D0 power state */
+ pci_set_power_state(pdev, PCI_D0);
+
+ /* restore PCI state */
+ pci_restore_state(pdev);
+
+ /* enable PCI device */
+ if (pci_enable_device(pdev)< 0)
+ return -ENODEV;
Same question here...
WBR, Sergei
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
