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From:   Peter Chen <peter.chen@nxp.com>
To:     Sanket Parmar <sparmar@cadence.com>
CC:     "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
        "felipe.balbi@linux.intel.com" <felipe.balbi@linux.intel.com>,
        "pawell@cadence.com" <pawell@cadence.com>,
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        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "kurahul@cadence.com" <kurahul@cadence.com>,
        "nsekhar@ti.com" <nsekhar@ti.com>
Subject: Re: [PATCH] usb: cdns3: gadget: reset EP_CLAIMED flag while unloading
Thread-Topic: [PATCH] usb: cdns3: gadget: reset EP_CLAIMED flag while
 unloading
Thread-Index: AQHVjlPrT/MJnfa1mUOR+qlmLDEOZKdyf6UA
Date:   Wed, 30 Oct 2019 03:00:25 +0000
Message-ID: <20191030030014.GD26815@b29397-desktop>
References: <20191029122441.5816-1-sparmar@cadence.com>
In-Reply-To: <20191029122441.5816-1-sparmar@cadence.com>
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On 19-10-29 12:24:41, Sanket Parmar wrote:
> EP_CLAIMED flag is used to track the claimed endpoints. While unloading t=
he
> module, Reset EP_CLAIMED flag for all enabled endpoints. So that it can b=
e
> reused.
>=20
> Signed-off-by: Sanket Parmar <sparmar@cadence.com>
> ---
> Hi Greg/Felipe,
>=20
> This can be used for -rc as it is bug fix.
>=20
> Regards,
> Sanket
>=20
>  drivers/usb/cdns3/gadget.c | 2 ++
>  1 file changed, 2 insertions(+)
>=20
> 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 &=3D ~EP_CLAIMED;
>  	}
> =20
>  	/* disable interrupt for device */
> --=20

Acked-by: Peter Chen <peter.chen@nxp.com>

--=20

Thanks,
Peter Chen=