From: Sanket Parmar <sparmar@cadence.com>
To: <gregkh@linuxfoundation.org>, <felipe.balbi@linux.intel.com>
Cc: <sparmar@cadence.com>, <pawell@cadence.com>,
<linux-usb@vger.kernel.org>, <rogerq@ti.com>,
<linux-kernel@vger.kernel.org>, <kurahul@cadence.com>,
<peter.chen@nxp.com>, <nsekhar@ti.com>
Subject: [PATCH] usb: cdns3: gadget: reset EP_CLAIMED flag while unloading
Date: Tue, 29 Oct 2019 12:24:41 +0000 [thread overview]
Message-ID: <20191029122441.5816-1-sparmar@cadence.com> (raw)
EP_CLAIMED flag is used to track the claimed endpoints. While unloading the
module, Reset EP_CLAIMED flag for all enabled endpoints. So that it can be
reused.
Signed-off-by: Sanket Parmar <sparmar@cadence.com>
---
Hi Greg/Felipe,
This can be used for -rc as it is bug fix.
Regards,
Sanket
drivers/usb/cdns3/gadget.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/cdns3/gadget.c b/drivers/usb/cdns3/gadget.c
index 9050b380ab83..2fb78322ed3c 100644
--- a/drivers/usb/cdns3/gadget.c
+++ b/drivers/usb/cdns3/gadget.c
@@ -2381,6 +2381,8 @@ static int cdns3_gadget_udc_stop(struct usb_gadget *gadget)
writel(EP_CMD_EPRST, &priv_dev->regs->ep_cmd);
readl_poll_timeout_atomic(&priv_dev->regs->ep_cmd, val,
!(val & EP_CMD_EPRST), 1, 100);
+
+ priv_ep->flags &= ~EP_CLAIMED;
}
/* disable interrupt for device */
--
2.17.1
next reply other threads:[~2019-10-29 12:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-29 12:24 Sanket Parmar [this message]
2019-10-29 12:26 ` [PATCH] usb: cdns3: gadget: reset EP_CLAIMED flag while unloading Roger Quadros
2019-10-30 3:00 ` Peter Chen
2019-10-30 11:40 ` Felipe Balbi
2019-10-30 11:51 ` Greg KH
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