usb: host: fotg2: restart hcd after port reset

On the Gemini SoC the FOTG2 stalls after port reset so restart the HCD after each port reset. Signed-off-by: Hans Ulli Kroll <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
torvalds · Aug 15, 2019 · 7777588 · 7777588
1 parent 5436427
commit 7777588
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
@@ -1629,6 +1629,10 @@ static int fotg210_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			/* see what we found out */
 			temp = check_reset_complete(fotg210, wIndex, status_reg,
 					fotg210_readl(fotg210, status_reg));
+
+			/* restart schedule */
+			fotg210->command |= CMD_RUN;
+			fotg210_writel(fotg210, fotg210->command, &fotg210->regs->command);
 		}
 
 		if (!(temp & (PORT_RESUME|PORT_RESET))) {