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From: Linus Walleij <linus.walleij@linaro.org>
To: Hans Ulli Kroll <ulli.kroll@googlemail.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	linux-usb@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Subject: [PATCH] usb: host: fotg2: restart hcd after port reset
Date: Sat, 10 Aug 2019 17:04:58 +0200	[thread overview]
Message-ID: <20190810150458.817-1-linus.walleij@linaro.org> (raw)

From: Hans Ulli Kroll <ulli.kroll@googlemail.com>

On the Gemini SoC the FOTG2 stalls after port reset
so restart the HCD after each port reset.

Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/usb/host/fotg210-hcd.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
index 35f69bce40d9..8ee28f5b7957 100644
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -1633,6 +1633,10 @@ 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))) {
-- 
2.21.0


                 reply	other threads:[~2019-08-10 15:05 UTC|newest]

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