linux-kernel - Re: [PATCH v2] ASoC: cs42xx8-i2c: Simplify probe()

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Date:   Tue, 29 Aug 2023 18:19:33 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Biju Das <biju.das.jz@...renesas.com>
Cc:     James Schulman <james.schulman@...rus.com>,
        David Rhodes <david.rhodes@...rus.com>,
        Richard Fitzgerald <rf@...nsource.cirrus.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, alsa-devel@...a-project.org,
        patches@...nsource.cirrus.com, linux-kernel@...r.kernel.org,
        Charles Keepax <ckeepax@...nsource.cirrus.com>
Subject: Re: [PATCH v2] ASoC: cs42xx8-i2c: Simplify probe()

On Mon, Aug 28, 2023 at 06:48:56PM +0100, Biju Das wrote:
> Simplify probe() by replacing of_match_device->i2c_get_match_data() and
> extend matching support for ID table. Also replace
> dev_err()->dev_err_probe() to simplify the code.

...

Can also be

	struct device *dev = &i2c->dev;

>  	int ret;
>  	struct cs42xx8_driver_data *drvdata;
> -	const struct of_device_id *of_id;
> -
> -	of_id = of_match_device(cs42xx8_of_match, &i2c->dev);
> -	if (!of_id) {
> -		dev_err(&i2c->dev, "failed to find driver data\n");
> -		return -EINVAL;
> -	}
>  
> -	drvdata = (struct cs42xx8_driver_data *)of_id->data;
> +	drvdata = (struct cs42xx8_driver_data *)i2c_get_match_data(i2c);
> +	if (!drvdata)

> +		return dev_err_probe(&i2c->dev, -EINVAL,
> +				     "failed to find driver data\n");

		return dev_err_probe(dev, -EINVAL, "failed to find driver data\n");

-- 
With Best Regards,
Andy Shevchenko