linux-kernel - Re: [PATCH 4/9] usb: roles: Leave the private driver data pointer to the drivers

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Date:   Mon, 17 Feb 2020 11:16:43 +0200
From:   Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:     Chunfeng Yun <chunfeng.yun@...iatek.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Benson Leung <bleung@...omium.org>,
        Prashant Malani <pmalani@...omium.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: [PATCH 4/9] usb: roles: Leave the private driver data pointer to
 the drivers

On Sat, Feb 15, 2020 at 05:19:58PM +0800, Chunfeng Yun wrote:
> On Thu, 2020-02-13 at 16:24 +0300, Heikki Krogerus wrote:
> > Adding usb_role_switch_get/set_drvdata() functions that the
> > switch drivers can use for setting and getting private data
> > pointer that is associated with the switch.
> > 
> > Signed-off-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
> > ---
> >  drivers/usb/roles/class.c | 22 ++++++++++++++++++++++
> >  include/linux/usb/role.h  | 16 ++++++++++++++++
> >  2 files changed, 38 insertions(+)
> > 
> > diff --git a/drivers/usb/roles/class.c b/drivers/usb/roles/class.c
> > index 63a00ff26655..f3132d231599 100644
> > --- a/drivers/usb/roles/class.c
> > +++ b/drivers/usb/roles/class.c
> > @@ -329,6 +329,7 @@ usb_role_switch_register(struct device *parent,
> >  	sw->dev.fwnode = desc->fwnode;
> >  	sw->dev.class = role_class;
> >  	sw->dev.type = &usb_role_dev_type;
> > +	sw->dev.driver_data = desc->driver_data;
> How about use dev_set_drvdata()? will keep align with
> usb_role_switch_set/get_drvdata(), 

Yes, makes sense. I'll change that.

Thanks,

-- 
heikki