linux-kernel - Re: [v3 PATCH 6/6] usb: mtu3: register a USB Role Switch for dual role mode

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Date:   Thu, 11 Apr 2019 09:05:59 +0800
From:   Chunfeng Yun <chunfeng.yun@...iatek.com>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>
CC:     Rob Herring <robh+dt@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Rutland <mark.rutland@....com>,
        "Matthias Brugger" <matthias.bgg@...il.com>,
        Adam Thomson <Adam.Thomson.Opensource@...semi.com>,
        Li Jun <jun.li@....com>,
        "Badhri Jagan Sridharan" <badhri@...gle.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Min Guo <min.guo@...iatek.com>,
        Alan Stern <stern@...land.harvard.edu>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-usb@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>
Subject: Re: [v3 PATCH 6/6] usb: mtu3: register a USB Role Switch for dual
 role mode

On Wed, 2019-04-10 at 13:24 +0300, Heikki Krogerus wrote:
> On Wed, Apr 03, 2019 at 10:09:14AM +0800, Chunfeng Yun wrote:
> > +static int ssusb_role_sw_register(struct otg_switch_mtk *otg_sx)
> > +{
> > +	struct usb_role_switch_desc role_sx_desc = { 0 };
> > +	struct ssusb_mtk *ssusb =
> > +		container_of(otg_sx, struct ssusb_mtk, otg_switch);
> > +
> > +	if (!otg_sx->role_sw_used)
> > +		return 0;
> > +
> > +	role_sx_desc.set = ssusb_role_sw_set;
> > +	role_sx_desc.get = ssusb_role_sw_get;
> 
>         role_sw_desc.fwnode = dev_fwnode(ssusb->dev);
Ok, thanks

> 
> > +	otg_sx->role_sw = usb_role_switch_register(ssusb->dev, &role_sx_desc);
> > +
> > +	return PTR_ERR_OR_ZERO(otg_sx->role_sw);
> > +}
> 
> thanks,
>