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authorRobert Baldyga <r.baldyga@samsung.com>2015-07-28 07:19:59 +0200
committerFelipe Balbi <balbi@ti.com>2015-07-30 11:43:35 -0500
commit02ded1b0d8e73dad7d2626c960ef20fb7dc30753 (patch)
tree7353424bd547ab0c43cc92312939a5edffde4ff6 /drivers/usb
parentffd9a0fcbbed300b55f84e8397e96c2edd06cbdf (diff)
downloadop-kernel-dev-02ded1b0d8e73dad7d2626c960ef20fb7dc30753.zip
op-kernel-dev-02ded1b0d8e73dad7d2626c960ef20fb7dc30753.tar.gz
usb: gadget: add 'quirk_stall_not_supp' to usb_gadget
Due to some UDC controllers may not support stalling, usb gadget layer needs to provide a generic way to inform gadget functions about non-standard hardware limitations. This patch adds 'quirk_stall_not_supp' field to struct usb_gadget and helper function gadget_is_stall_supported(). It also sets 'quirk_stall_not_supp' to 1 in at91_udc driver, which has such limitation. Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/gadget/udc/at91_udc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/gadget/udc/at91_udc.c b/drivers/usb/gadget/udc/at91_udc.c
index fc42264..32f50a79 100644
--- a/drivers/usb/gadget/udc/at91_udc.c
+++ b/drivers/usb/gadget/udc/at91_udc.c
@@ -825,6 +825,7 @@ static void udc_reinit(struct at91_udc *udc)
INIT_LIST_HEAD(&udc->gadget.ep_list);
INIT_LIST_HEAD(&udc->gadget.ep0->ep_list);
+ udc->gadget.quirk_stall_not_supp = 1;
for (i = 0; i < NUM_ENDPOINTS; i++) {
struct at91_ep *ep = &udc->ep[i];
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