diff options
| author | Gerard CAUVY <g-cauvy1@ti.com> | 2012-05-24 09:47:36 (GMT) |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-06-03 20:08:26 (GMT) |
| commit | 5cbe8c220c1e126dd0855ad57fe4491b267132b9 (patch) | |
| tree | f1d1a6993993f79b8561d8648ea3e9dae83c0972 /drivers/usb | |
| parent | c4430a26948b84c0d820e83f8c640229f960d3b6 (diff) | |
| download | linux-5cbe8c220c1e126dd0855ad57fe4491b267132b9.tar.xz | |
usb: dwc3: gadget: move AcceptU1Ena and AcceptU2Ena to Reset IRQ
According to the databook, the DWC3 Core will
reset those bits to 0 on USB Bus Reset. This
means we must re-enable those bits on every
reset interrupt.
Because we will always get a Reset interrupt
after loading a gadget driver, we can, instead
of re-enabling something that was just lost,
move the handling of those bits to the Reset
Interrupt.
This patch fixes USB30CV U1/U2 Test.
Signed-off-by: Gerard CAUVY <g-cauvy1@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 054ee5e..a9fc7c4 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2006,6 +2006,7 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc) reg = dwc3_readl(dwc->regs, DWC3_DCTL); reg &= ~DWC3_DCTL_TSTCTRL_MASK; reg &= ~(DWC3_DCTL_INITU1ENA | DWC3_DCTL_INITU2ENA); + reg |= (DWC3_DCTL_ACCEPTU1ENA | DWC3_DCTL_ACCEPTU2ENA); dwc3_writel(dwc->regs, DWC3_DCTL, reg); dwc->test_mode = false; @@ -2410,10 +2411,6 @@ int __devinit dwc3_gadget_init(struct dwc3 *dwc) reg |= DWC3_DCFG_LPM_CAP; dwc3_writel(dwc->regs, DWC3_DCFG, reg); - reg = dwc3_readl(dwc->regs, DWC3_DCTL); - reg |= DWC3_DCTL_ACCEPTU1ENA | DWC3_DCTL_ACCEPTU2ENA; - dwc3_writel(dwc->regs, DWC3_DCTL, reg); - /* Enable all but Start and End of Frame IRQs */ reg = (DWC3_DEVTEN_VNDRDEVTSTRCVEDEN | DWC3_DEVTEN_EVNTOVERFLOWEN | |