diff options
| -rw-r--r-- | drivers/usb/musb/musb_gadget.c | 1 | ||||
| -rw-r--r-- | include/linux/usb/gadget.h | 10 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 625d482f1a97..9e18178f1d45 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -2075,6 +2075,7 @@ __acquires(musb->lock) musb->g.b_hnp_enable = 0; musb->g.a_alt_hnp_support = 0; musb->g.a_hnp_support = 0; + musb->g.quirk_zlp_not_supp = 1; /* Normal reset, as B-Device; * or else after HNP, as A-Device diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index f195a76548f6..353a72096dda 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -574,6 +574,7 @@ struct usb_gadget { unsigned quirk_ep_out_aligned_size:1; unsigned quirk_altset_not_supp:1; unsigned quirk_stall_not_supp:1; + unsigned quirk_zlp_not_supp:1; unsigned is_selfpowered:1; unsigned deactivated:1; unsigned connected:1; @@ -631,6 +632,15 @@ static inline int gadget_is_stall_supported(struct usb_gadget *g) } /** + * gadget_is_zlp_supported - return true iff the hardware supports zlp + * @g: controller to check for quirk + */ +static inline int gadget_is_zlp_supported(struct usb_gadget *g) +{ + return !g->quirk_zlp_not_supp; +} + +/** * gadget_is_dualspeed - return true iff the hardware handles high speed * @g: controller that might support both high and full speeds */ |