diff options
| author |  Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
| 2017-07-11 14:25:13 +0400 |
|---|---|---|
| committer |  Felipe Balbi <felipe.balbi@linux.intel.com>
| 2017-07-18 08:57:36 +0300 |
| commit | 307bc11fcdf9f911a1adacf9e77fe1c490041ee3 (patch) | |
| tree | 74e7b4b25e9f019832576b3c13e019af431cfdb8 /drivers/usb/dwc2 | |
| parent | usb: dwc3: gadget: only unmap requests from DMA if mapped (diff) | |
| download | linux-307bc11fcdf9f911a1adacf9e77fe1c490041ee3.tar.gz linux-307bc11fcdf9f911a1adacf9e77fe1c490041ee3.tar.bz2 linux-307bc11fcdf9f911a1adacf9e77fe1c490041ee3.zip | |
usb: dwc2: gadget: On USB RESET reset device address to zero
Reseted DEVADDR field in DCFG to zero on USB RESET.
Device address in DCFG register does not reset to zero,
which required to pass enumeration, after disconnect and
reconnect.
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc2')
| -rw-r--r-- | drivers/usb/dwc2/gadget.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index bc3b3fda5000..c4066cd77e47 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -3573,6 +3573,9 @@ irq_retry: /* Report disconnection if it is not already done. */ dwc2_hsotg_disconnect(hsotg); + /* Reset device address to zero */ + __bic32(hsotg->regs + DCFG, DCFG_DEVADDR_MASK); + if (usb_status & GOTGCTL_BSESVLD && connected) dwc2_hsotg_core_init_disconnected(hsotg, true); } |