target/linux/gemini/patches-4.19/0017-usb-host-fotg2-restart-hcd-after-port-reset.patch

   1 From b9d300b5aea18f2e992201d182d939030130aab2 Mon Sep 17 00:00:00 2001
   2 From: Hans Ulli Kroll <ulli.kroll@googlemail.com>
   3 Date: Sat, 14 Apr 2018 18:49:57 +0200
   4 Subject: [PATCH 17/18] usb: host: fotg2: restart hcd after port reset
   5
   6 on Gemini SoC FOTG2 stalls after port reset
   7 rerstart the hcd.
   8
   9 Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
  10 Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
  11 ---
  12  drivers/usb/host/fotg210-hcd.c | 4 ++++
  13  1 file changed, 4 insertions(+)
  14
  15 diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
  16 index 5abb07f4136f..d15e835c4b1f 100644
  17 --- a/drivers/usb/host/fotg210-hcd.c
  18 +++ b/drivers/usb/host/fotg210-hcd.c
  19 @@ -1633,6 +1633,10 @@ static int fotg210_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
  20                         /* see what we found out */
  21                         temp = check_reset_complete(fotg210, wIndex, status_reg,
  22                                         fotg210_readl(fotg210, status_reg));
  23 +
  24 +                       /* restart schedule */
  25 +                       fotg210->command |= CMD_RUN;
  26 +                       fotg210_writel(fotg210, fotg210->command, &fotg210->regs->command);
  27                 }
  28
  29                 if (!(temp & (PORT_RESUME|PORT_RESET))) {
  30 --
  31 2.19.2
  32