On Tue, 2011-09-06 at 08:27 -0700, Greg KH wrote: > On Tue, Sep 06, 2011 at 03:51:44PM +0800, Andiry Xu wrote: > > 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@xxxxxxx> > > --- > > drivers/usb/host/xhci-ext-caps.h | 6 ++++++ > > drivers/usb/host/xhci-mem.c | 17 +++++++++++++++++ > > drivers/usb/host/xhci.h | 4 ++++ > > 3 files changed, 27 insertions(+), 0 deletions(-) > > > > diff --git a/drivers/usb/host/xhci-ext-caps.h b/drivers/usb/host/xhci-ext-caps.h > > index ce5c9e5..c7f3312 100644 > > --- a/drivers/usb/host/xhci-ext-caps.h > > +++ b/drivers/usb/host/xhci-ext-caps.h > > @@ -65,6 +65,12 @@ > > /* bits 1:2, 5:12, and 17:19 need to be preserved; bits 21:28 should be zero */ > > #define XHCI_LEGACY_DISABLE_SMI ((0x3 << 1) + (0xff << 5) + (0x7 << 17)) > > > > +/* USB 2.0 xHCI 0.96 L1C capability - section 7.2.2.1.3.2 */ > > +#define XHCI_L1C (1 << 16) > > + > > +/* USB 2.0 xHCI 1.0 hardware LMP capability - section 7.2.2.1.3.2 */ > > +#define XHCI_HLC (1 << 19) > > > Ick, do we care about pre-1.0 hardware anymore? > 0.96 host is taken care of. 0.95 host is obsolete on market now and I think we do not need to care it anymore. Thanks, Andiry -- 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
