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authorFelipe Balbi <balbi@ti.com>2014-09-30 16:08:03 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-05-06 21:56:21 +0200
commit3518a2e4bbe8c336d3f59138d1f7bdd628a841b3 (patch)
tree729ddfc4d69fb58668863fff55db88d3ea365555 /drivers/usb
parent6073c4162289fcae16b359f8e105d60343a209ca (diff)
usb: gadget: composite: enable BESL support
commit a6615937bcd9234e6d6bb817c3701fce44d0a84d upstream. According to USB 2.0 ECN Errata for Link Power Management (USB2-LPM-Errata-final.pdf), BESL must be enabled if LPM is enabled. This helps with USB30CV TD 9.21 LPM L1 Suspend Resume Test. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Du, Changbin <changbin.du@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/gadget/composite.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 44a292b75012..a660716f9331 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -528,7 +528,7 @@ static int bos_desc(struct usb_composite_dev *cdev)
usb_ext->bLength = USB_DT_USB_EXT_CAP_SIZE;
usb_ext->bDescriptorType = USB_DT_DEVICE_CAPABILITY;
usb_ext->bDevCapabilityType = USB_CAP_TYPE_EXT;
- usb_ext->bmAttributes = cpu_to_le32(USB_LPM_SUPPORT);
+ usb_ext->bmAttributes = cpu_to_le32(USB_LPM_SUPPORT | USB_BESL_SUPPORT);
/*
* The Superspeed USB Capability descriptor shall be implemented by all