redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

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>
hifive-unleashed-5.1
Minas Harutyunyan 2017-07-11 14:25:13 +04:00 committed by Felipe Balbi
parent 4a71fcb8ac
commit 307bc11fcd
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/usb/dwc2/gadget.c
View File

@ -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);
}