diff options
Diffstat (limited to 'drivers/usb/chipidea/udc.c')
| -rw-r--r-- | drivers/usb/chipidea/udc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 8834ca613721..f9ca5010f65b 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -49,6 +49,8 @@ ctrl_endpt_in_desc = { .wMaxPacketSize = cpu_to_le16(CTRL_PAYLOAD_MAX), }; +static int reprime_dtd(struct ci_hdrc *ci, struct ci_hw_ep *hwep, + struct td_node *node); /** * hw_ep_bit: calculates the bit number * @num: endpoint number @@ -599,6 +601,12 @@ static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq) prevlastnode->ptr->next = cpu_to_le32(next); wmb(); + + if (ci->rev == CI_REVISION_22) { + if (!hw_read(ci, OP_ENDPTSTAT, BIT(n))) + reprime_dtd(ci, hwep, prevlastnode); + } + if (hw_read(ci, OP_ENDPTPRIME, BIT(n))) goto done; do { |