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authorAndiry Xu <andiry.xu@amd.com>2011-09-23 14:19:52 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2011-09-26 15:51:10 -0700
commit65580b4321eb36f16ae8b5987bfa1bb948fc5112 (patch)
tree12735f923ad670c405efb5ab34c188dc06ad15f7 /drivers/usb/host/xhci-pci.c
parent9574323c39d1f8359a04843075d89c9f32d8b7e6 (diff)
downloadlinux-stericsson-65580b4321eb36f16ae8b5987bfa1bb948fc5112.tar.gz
xHCI: set USB2 hardware LPM
If the device pass the USB2 software LPM and the host supports hardware LPM, enable hardware LPM for the device to let the host decide when to put the link into lower power state. If hardware LPM is enabled for a port and driver wants to put it into suspend, it must first disable hardware LPM, resume the port into U0, and then suspend the port. Signed-off-by: Andiry Xu <andiry.xu@amd.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/xhci-pci.c')
-rw-r--r--drivers/usb/host/xhci-pci.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 213a7d73b118..e66e2b03fbbe 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -349,6 +349,7 @@ static const struct hc_driver xhci_pci_hc_driver = {
* call back when device connected and addressed
*/
.update_device = xhci_update_device,
+ .set_usb2_hw_lpm = xhci_set_usb2_hardware_lpm,
};
/*-------------------------------------------------------------------------*/