linux-kernel - Re: [PATCH v2 1/2] extcon: max77693: add device-tree compatible string

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Date:   Sat, 7 Oct 2023 00:11:24 +0900
From:   Chanwoo Choi <chanwoo@...nel.org>
To:     Marek Szyprowski <m.szyprowski@...sung.com>,
        linux-kernel@...r.kernel.org
Cc:     Chanwoo Choi <cw00.choi@...sung.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        MyungJoo Ham <myungjoo.ham@...sung.com>
Subject: Re: [PATCH v2 1/2] extcon: max77693: add device-tree compatible
 string

On 23. 10. 6. 19:04, Marek Szyprowski wrote:
> Commit 57f706bf7307 ("ARM: dts: samsung: exynos4412-midas: add USB
> connector and USB OTG") added a 'muic' node to the MAX77693 PMIC
> definition in various device-tree files. Since that commit, the newly
> created MFD cell gained its own of_node and compatible string. This
> changed its modalias, what in turn broke automated loading of the driver
> module, because the new modalias is based on the of_node compatible
> string, not the platform device name.
> 
> Fix this by adding the needed device-tree compatible string.
> 
> Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
> ---
>  drivers/extcon/extcon-max77693.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
> index 1f1d9ab0c5c7..2c567e0b7b7f 100644
> --- a/drivers/extcon/extcon-max77693.c
> +++ b/drivers/extcon/extcon-max77693.c
> @@ -1258,9 +1258,16 @@ static int max77693_muic_probe(struct platform_device *pdev)
>  	return ret;
>  }
>  
> +static const struct of_device_id of_max77693_muic_dt_match[] = {
> +	{ .compatible = "maxim,max77693-muic", },
> +	{ /* sentinel */ },
> +};
> +MODULE_DEVICE_TABLE(of, of_max77693_muic_dt_match);
> +
>  static struct platform_driver max77693_muic_driver = {
>  	.driver		= {
>  		.name	= DEV_NAME,
> +		.of_match_table = of_max77693_muic_dt_match,
>  	},
>  	.probe		= max77693_muic_probe,
>  };


Applied it. Thanks.

-- 
Best Regards,
Samsung Electronics
Chanwoo Choi