From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>,
Linus Walleij <linus.walleij@linaro.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Sasha Levin <sashal@kernel.org>,
linux-usb@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 25/27] usb: host: fotg2: restart hcd after port reset
Date: Tue, 20 Aug 2019 09:42:11 -0400 [thread overview]
Message-ID: <20190820134213.11279-25-sashal@kernel.org> (raw)
In-Reply-To: <20190820134213.11279-1-sashal@kernel.org>
From: Hans Ulli Kroll <ulli.kroll@googlemail.com>
[ Upstream commit 777758888ffe59ef754cc39ab2f275dc277732f4 ]
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>
Link: https://lore.kernel.org/r/20190810150458.817-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.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 e64eb47770c8b..2d5a72c15069e 100644
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -1627,6 +1627,10 @@ 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))) {
--
2.20.1
prev parent reply other threads:[~2019-08-20 13:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190820134213.11279-1-sashal@kernel.org>
2019-08-20 13:42 ` [PATCH AUTOSEL 4.19 18/27] usb: gadget: composite: Clear "suspended" on reset/disconnect Sasha Levin
2019-08-20 13:42 ` [PATCH AUTOSEL 4.19 19/27] usb: gadget: mass_storage: Fix races between fsg_disable and fsg_set_alt Sasha Levin
2019-08-20 13:42 ` Sasha Levin [this message]
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