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| author | Robert Baldyga <r.baldyga@samsung.com> | 2015-07-28 07:20:00 +0200 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-07-30 11:43:35 -0500 |
| commit | ca1023c81dd10f76a5d0a8be2fdbe724fe7a126a (patch) | |
| tree | 8fe9edd162240bf8d449b8b313c55239f60dadfc /drivers/usb/musb/musb_gadget.c | |
| parent | 02ded1b0d8e73dad7d2626c960ef20fb7dc30753 (diff) | |
| download | blackbird-op-linux-ca1023c81dd10f76a5d0a8be2fdbe724fe7a126a.tar.gz blackbird-op-linux-ca1023c81dd10f76a5d0a8be2fdbe724fe7a126a.zip | |
usb: gadget: add 'quirk_zlp_not_supp' to usb_gadget
Due to some UDC controllers may not support zlp, usb gadget layer
needs to provide a generic way to inform gadget functions about non-standard
hardware limitations.
This patch adds 'quirk_zlp_not_supp' field to struct usb_gadget and helper
function gadget_is_zlp_supported(). It also sets 'quirk_zlp_not_supp'
to 1 in musb UDC driver, which has such limitation.
[ balbi@ti.com : make it build ]
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/musb/musb_gadget.c')
| -rw-r--r-- | drivers/usb/musb/musb_gadget.c | 1 |
1 files changed, 1 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 |
