linux-kernel - Re: [PATCH RFC 3/4] i2c: mux: pca954x: convert to using a pointer in i2c_device

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Message-ID: <ZNufBsIT7KvEDA/c@smile.fi.intel.com>
Date:   Tue, 15 Aug 2023 18:51:34 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     Wolfram Sang <wsa@...nel.org>, Andi Shyti <andi.shyti@...nel.org>,
        Biju Das <biju.das.jz@...renesas.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Michael Hennerich <michael.hennerich@...log.com>,
        Peter Rosin <peda@...ntia.se>, linux-i2c@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC 3/4] i2c: mux: pca954x: convert to using a pointer in
 i2c_device_id

On Mon, Aug 14, 2023 at 02:52:51PM -0700, Dmitry Torokhov wrote:
> Switch the driver to use newly added "data" pointer in i2c_device_id to
> streamline DT and legacy flows.

...

> @@ -206,7 +206,7 @@ static const struct of_device_id pca954x_of_match[] = {
>  	{ .compatible = "nxp,pca9847", .data = &chips[pca_9847] },
>  	{ .compatible = "nxp,pca9848", .data = &chips[pca_9848] },
>  	{ .compatible = "nxp,pca9849", .data = &chips[pca_9849] },
> -	{}
> +	{ }
>  };
>  MODULE_DEVICE_TABLE(of, pca954x_of_match);

Stray change.

...

>  	data->chip = device_get_match_data(dev);
>  	if (!data->chip)
> -		data->chip = &chips[id->driver_data];
> +		data->chip = id->data;

Same, why not to use that helper and if anything, modify it instead.

-- 
With Best Regards,
Andy Shevchenko