Sender: Guenter Roeck <groeck7@gmail.com>
Date:   Mon, 13 Mar 2023 15:01:40 -0700
From:   Guenter Roeck <linux@roeck-us.net>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc:     Joe Tessler <jrt@google.com>,
        Hans Verkuil <hverkuil-cisco@xs4all.nl>,
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Subject: Re: [PATCH 01/28] media: cec: ch7322: drop of_match_ptr for ID table
Message-ID: <b83d6b81-c4ec-4fb8-b626-84af80d1c4a3@roeck-us.net>
References: <20230312131318.351173-1-krzysztof.kozlowski@linaro.org>
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On Sun, Mar 12, 2023 at 02:12:51PM +0100, Krzysztof Kozlowski wrote:
> The driver can match only via the DT table so the table should be always
> used and the of_match_ptr does not have any sense (this also allows ACPI
> matching via PRP0001, even though it might not be relevant here).
> 
>   drivers/media/cec/i2c/ch7322.c:583:34: error: ‘ch7322_of_match’ defined but not used [-Werror=unused-const-variable=]
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

FWIW: There is also
https://patches.linaro.org/project/linux-media/patch/20230215214724.3798917-1-linux@roeck-us.net/

The lack of ACPI support is a real problem and very relevant.

Guenter

> ---
>  drivers/media/cec/i2c/ch7322.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/cec/i2c/ch7322.c b/drivers/media/cec/i2c/ch7322.c
> index 34fad7123704..3c6e6496a001 100644
> --- a/drivers/media/cec/i2c/ch7322.c
> +++ b/drivers/media/cec/i2c/ch7322.c
> @@ -589,7 +589,7 @@ MODULE_DEVICE_TABLE(of, ch7322_of_match);
>  static struct i2c_driver ch7322_i2c_driver = {
>  	.driver = {
>  		.name = "ch7322",
> -		.of_match_table = of_match_ptr(ch7322_of_match),
> +		.of_match_table = ch7322_of_match,
>  	},
>  	.probe_new	= ch7322_probe,
>  	.remove		= ch7322_remove,