Re: [PATCH 01/28] media: cec: ch7322: drop of_match_ptr for ID table

From: Guenter Roeck
Date: Mon Mar 13 2023 - 18:02:23 EST


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@xxxxxxxxxx>

Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>

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

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,