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,