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Message-ID: <a8e81590-3fc5-4777-bd60-cea872592c56@kernel.org>
Date:   Fri, 6 Oct 2023 08:41:17 +0200
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Subject: Re: [PATCH 2/2] extcon: max77843: add device-tree compatible string
To:     Marek Szyprowski <m.szyprowski@samsung.com>,
        linux-kernel@vger.kernel.org
Cc:     Chanwoo Choi <cw00.choi@samsung.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
        MyungJoo Ham <myungjoo.ham@samsung.com>
References: <20231005104327.981101-1-m.szyprowski@samsung.com>
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From:   Krzysztof Kozlowski <krzk@kernel.org>
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In-Reply-To: <20231005104327.981101-2-m.szyprowski@samsung.com>
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Precedence: bulk

On 05/10/2023 12:43, Marek Szyprowski wrote:
> Add the needed device-tree compatible string to the MAX77843 extcon
> driver, so it can be automatically loaded when compiled as a kernel
> module and given device-tree contains separate 'muic' node under the main
> MAX77843 PMIC node.
> 
> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
> ---
>  drivers/extcon/extcon-max77843.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/extcon/extcon-max77843.c b/drivers/extcon/extcon-max77843.c
> index 1bc0426ce3f1..e04ebdda886a 100644
> --- a/drivers/extcon/extcon-max77843.c
> +++ b/drivers/extcon/extcon-max77843.c
> @@ -946,6 +946,12 @@ static const struct platform_device_id max77843_muic_id[] = {
>  };
>  MODULE_DEVICE_TABLE(platform, max77843_muic_id);
>  
> +static const struct of_device_id of_max77843_muic_dt_match[] = {
> +	{ .compatible = "maxim,max77843-muic", },
> +	{ /* sentinel */ },
> +};
> +MODULE_DEVICE_TABLE(of, of_max77843_muic_dt_match);

As robot reports, there is indeed no user of it. :/ You need to include
it in driver OF table or add maybe_unused.

Best regards,
Krzysztof