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authorDavid S. Miller <davem@davemloft.net>2010-03-15 23:23:54 (GMT)
committerDavid S. Miller <davem@davemloft.net>2010-03-15 23:23:54 (GMT)
commit4961e02f1999e1c3468c09b2669c94d7c3ae82a8 (patch)
tree44c15abb09d7ba5e17a9aba95ee246648b1c1a8a /drivers/usb/core/quirks.c
parentd14a0ebda7d3daede1a99c01527affb9ceaa4c22 (diff)
parenta3d3203e4bb40f253b1541e310dc0f9305be7c84 (diff)
downloadlinux-fsl-qoriq-4961e02f1999e1c3468c09b2669c94d7c3ae82a8.tar.xz
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'drivers/usb/core/quirks.c')
-rw-r--r--drivers/usb/core/quirks.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index ab93918..f073c5c 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -103,10 +103,19 @@ void usb_detect_quirks(struct usb_device *udev)
dev_dbg(&udev->dev, "USB quirks for this device: %x\n",
udev->quirks);
- /* By default, disable autosuspend for all non-hubs */
#ifdef CONFIG_USB_SUSPEND
- if (udev->descriptor.bDeviceClass != USB_CLASS_HUB)
- udev->autosuspend_disabled = 1;
+
+ /* By default, disable autosuspend for all devices. The hub driver
+ * will enable it for hubs.
+ */
+ usb_disable_autosuspend(udev);
+
+ /* Autosuspend can also be disabled if the initial autosuspend_delay
+ * is negative.
+ */
+ if (udev->autosuspend_delay < 0)
+ usb_autoresume_device(udev);
+
#endif
/* For the present, all devices default to USB-PERSIST enabled */
@@ -120,6 +129,7 @@ void usb_detect_quirks(struct usb_device *udev)
* for all devices. It will affect things like hub resets
* and EMF-related port disables.
*/
- udev->persist_enabled = 1;
+ if (!(udev->quirks & USB_QUIRK_RESET_MORPHS))
+ udev->persist_enabled = 1;
#endif /* CONFIG_PM */
}