diff options
| author | Pratyush Anand <pratyush.anand@st.com> | 2012-07-02 04:51:54 (GMT) |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-07-02 07:03:55 (GMT) |
| commit | e274a31e29b6a097c32f526493f4ebce10856dcb (patch) | |
| tree | 57bb5ca8df17d29a1873631e7400e3e6d2e1d99f /drivers/usb/dwc3/ep0.c | |
| parent | dd864f20b382b131bfe10c87c5c81985f5bafa54 (diff) | |
| download | linux-e274a31e29b6a097c32f526493f4ebce10856dcb.tar.xz | |
usb: dwc3: enable ACCEPT{U1,U2}ENA when SetConfiguration received
As per databook, ACCEPT{U1,U2}ENA bits should be set after receiving
SetConfiguration Command.
Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3/ep0.c')
| -rw-r--r-- | drivers/usb/dwc3/ep0.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 1315e78..9b94886 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -474,6 +474,7 @@ static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) { u32 cfg; int ret; + u32 reg; dwc->start_config_issued = false; cfg = le16_to_cpu(ctrl->wValue); @@ -488,6 +489,14 @@ static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) /* if the cfg matches and the cfg is non zero */ if (cfg && (!ret || (ret == USB_GADGET_DELAYED_STATUS))) { dwc->dev_state = DWC3_CONFIGURED_STATE; + /* + * Enable transition to U1/U2 state when + * nothing is pending from application. + */ + reg = dwc3_readl(dwc->regs, DWC3_DCTL); + reg |= (DWC3_DCTL_ACCEPTU1ENA | DWC3_DCTL_ACCEPTU2ENA); + dwc3_writel(dwc->regs, DWC3_DCTL, reg); + dwc->resize_fifos = true; dev_dbg(dwc->dev, "resize fifos flag SET\n"); } |