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Date:   Fri, 15 Mar 2019 17:14:08 +0800
From:   Chunfeng Yun <chunfeng.yun@...iatek.com>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>
CC:     Andy Shevchenko <andy.shevchenko@...il.com>,
        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>,
        Min Guo <min.guo@...iatek.com>, <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: [PATCH v2 4/6] usb: roles: add API to get usb_role_switch by
 node

Hi,
On Fri, 2019-03-15 at 11:11 +0200, Heikki Krogerus wrote:
> On Fri, Mar 15, 2019 at 10:18:35AM +0200, Heikki Krogerus wrote:
> > Andy already pointed out that you need to use fwnodes.
> > 
> > Rule of thumb: You always use fwnodes. Only if there is something that
> > can't be done with fwnodes you use DT or ACPI nodes directly.
> > 
> > In this case there is absolutely nothing that would prevent you from
> > using fwnodes.
> 
> ...
> 
> > +/**
> > + * usb_role_switch_get_by_node - Find USB role switch by it's parent node
> > + * @node: The node that register USB role switch
> > + *
> > + * Finds and returns role switch registered by @node. The reference count
> > + * for the found switch is incremented.
> > + */
> > +struct usb_role_switch *usb_role_switch_get_by_node(struct device_node *node)
> 
> This is my proposal for function prototype:
> 
> struct usb_role_switch *
> fwnode_usb_role_switch_get(struct fwnode_handle *fwnode);
Ok, thanks again
> 
> 
> thanks,
> 


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