diff options
| author | Andiry Xu <andiry.xu@amd.com> | 2011-09-23 23:19:51 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-09-27 00:51:09 +0200 |
| commit | fc71ff7583b14347fa1cb592b698f088ecff36e3 (patch) | |
| tree | e10b2ea18dafac36f7da843c7d0d87cb0f2a8194 /drivers/usb/host/xhci.h | |
| parent | xHCI: Clear PLC for USB2 root hub ports (diff) | |
| download | linux-fc71ff7583b14347fa1cb592b698f088ecff36e3.tar.xz linux-fc71ff7583b14347fa1cb592b698f088ecff36e3.zip | |
xHCI: Check host USB2 LPM capability
Check the host's USB2 LPM capability.
USB2 software LPM support is optional for xHCI 0.96 hosts. xHCI 1.0 hosts
should support software LPM, and may support hardware LPM.
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.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index fa921cbbe872..8673f985046e 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1459,6 +1459,10 @@ struct xhci_hcd { /* Array of pointers to USB 2.0 PORTSC registers */ __le32 __iomem **usb2_ports; unsigned int num_usb2_ports; + /* support xHCI 0.96 spec USB2 software LPM */ + unsigned sw_lpm_support:1; + /* support xHCI 1.0 spec USB2 hardware LPM */ + unsigned hw_lpm_support:1; }; /* convert between an HCD pointer and the corresponding EHCI_HCD */ |