Change for v2:
- Replace gadget_is_otg() with ci_otg_is_fsm_mode() as condition when
handling OTG status selector request.
Peripheral answers OTG status selector request from host according to
host request flag of gadget, this flag may be set by application via
kernel interface.
Signed-off-by: Li Jun <b47624@xxxxxxxxxxxxx>
---
drivers/usb/chipidea/udc.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index d683968..4564936 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -823,8 +823,16 @@ __acquires(hwep->lock)
}
if ((setup->bRequestType & USB_RECIP_MASK) == USB_RECIP_DEVICE) {
- /* Assume that device is bus powered for now. */
- *(u16 *)req->buf = ci->remote_wakeup << 1;
+ if ((setup->wIndex == OTG_STS_SELECTOR) &&
+ ci_otg_is_fsm_mode(ci)) {
+ if (ci->gadget.host_request_flag)
+ *(u16 *)req->buf = HOST_REQUEST_FLAG;
+ else
+ *(u16 *)req->buf = 0;
+ } else {
+ /* Assume that device is bus powered for now. */
+ *(u16 *)req->buf = ci->remote_wakeup << 1;
+ }
retval = 0;
} else if ((setup->bRequestType & USB_RECIP_MASK) \
== USB_RECIP_ENDPOINT) {
--
1.7.9.5
--
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