linux-kernel - RE: [RFC PATCH] usb: host: xhci: plat: add support for otg_set

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Message-ID: <B2EF86ADE403CA4A85AF1BE1D3A22A06DB2477@XAP-PVEXMBX01.xlnx.xilinx.com>
Date:   Mon, 2 Jan 2017 09:35:21 +0000
From:   Manish Narani <manish.narani@...inx.com>
To:     "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
CC:     "mathias.nyman@...el.com" <mathias.nyman@...el.com>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Anurag Kumar Vulisha" <anuragku@...inx.com>,
        Punnaiah Choudary Kalluri <punnaia@...inx.com>,
        Anirudha Sarangi <anirudh@...inx.com>
Subject: RE: [RFC PATCH] usb: host: xhci: plat: add support for
 otg_set_host() call

Hi Greg,


I need to have this infrastructure while implementing DWC3 OTG driver. The current scenario is that we are using xHCI drivers with High-Speed OTG because DWC3 uses xHCI framework. So I wanted to confirm that before adding DWC3 OTG driver, this support should be already there. I am planning to add DWC3 OTG driver after this patch is added.

Please let me know your valuable suggestions on this.


Thanks,
Manish

-----Original Message-----
From: gregkh@...uxfoundation.org [mailto:gregkh@...uxfoundation.org]
Sent: Monday, January 02, 2017 2:53 PM
To: Manish Narani <MNARANI@...inx.com>
Cc: Manish Narani <MNARANI@...inx.com>; mathias.nyman@...el.com; linux-usb@...r.kernel.org; linux-kernel@...r.kernel.org; Anurag Kumar Vulisha <anuragku@...inx.com>; Punnaiah Choudary Kalluri <punnaia@...inx.com>; Anirudha Sarangi <anirudh@...inx.com>
Subject: Re: [RFC PATCH] usb: host: xhci: plat: add support for otg_set_host() call

On Mon, Jan 02, 2017 at 06:30:02AM +0000, Manish Narani wrote:
> Ping !!
>
> -----Original Message-----
> From: Manish Narani [mailto:manish.narani@...inx.com]
> Sent: Thursday, December 15, 2016 1:24 PM
> To: mathias.nyman@...el.com; gregkh@...uxfoundation.org; linux-usb@...r.kernel.org; linux-kernel@...r.kernel.org
> Cc: Anurag Kumar Vulisha <anuragku@...inx.com>; Punnaiah Choudary Kalluri <punnaia@...inx.com>; Anirudha Sarangi <anirudh@...inx.com>; Manish Narani <MNARANI@...inx.com>
> Subject: [RFC PATCH] usb: host: xhci: plat: add support for otg_set_host() call
>
> This patch will add support for OTG host initialization. This will help OTG drivers to populate their host subsystem.

Don't add new infrastructure that is not used at all :(


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