linux-kernel - Re: [PATCH 7/9] i2c: Switch .probe() to not take an id parameter

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Date:   Fri, 24 Feb 2023 19:03:46 +0100
From:   Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To:     Luca Ceresoli <luca.ceresoli@...tlin.com>
Cc:     Wolfram Sang <wsa@...nel.org>, Lee Jones <lee.jones@...aro.org>,
        linux-i2c@...r.kernel.org, kernel@...gutronix.de,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/9] i2c: Switch .probe() to not take an id parameter

Hello Luca,

On Fri, Feb 24, 2023 at 05:02:18PM +0100, Luca Ceresoli wrote:
> On Fri, 24 Feb 2023 13:05:58 +0100
> Uwe Kleine-König         <u.kleine-koenig@...gutronix.de> wrote:
> > [...]
> > diff --git a/include/linux/i2c.h b/include/linux/i2c.h
> > index d84e0e99f084..c3e022d53182 100644
> > --- a/include/linux/i2c.h
> > +++ b/include/linux/i2c.h
> > @@ -272,14 +272,18 @@ enum i2c_driver_flags {
> >  struct i2c_driver {
> >  	unsigned int class;
> >  
> > +	union {
> >  	/* Standard driver model interfaces */
> > -	int (*probe)(struct i2c_client *client, const struct i2c_device_id *id);
> > +		int (*probe)(struct i2c_client *client);
> > +		/*
> > +		 * Legacy callback that was part of a conversion of .probe().
> > +		 * Today it has the same semantic as .probe(). Don't use for new
> > +		 * code.
> > +		 */
> > +		int (*probe_new)(struct i2c_client *client);
> > +	};
> >  	void (*remove)(struct i2c_client *client);
> >  
> > -	/* New driver model interface to aid the seamless removal of the
> > -	 * current probe()'s, more commonly unused than used second parameter.
> > -	 */
> > -	int (*probe_new)(struct i2c_client *client);
> 
> The kerneldoc for this struct should also be updated:
> 
> - * @probe: Callback for device binding - soon to be deprecated
> - * @probe_new: New callback for device binding
> + * @probe: Callback for device binding 
> + * @probe_new: Transitional callback for device binding - do not use

Indeed. I will send an updated patch series near the end of the merge
window, with your suggested change squashed in.

Thanks
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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