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 is not relevant here). drivers/regulator/pbias-regulator.c:137:34: error: ‘pbias_of_match’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- drivers/regulator/pbias-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/pbias-regulator.c b/drivers/regulator/pbias-regulator.c index 4eccf12f39de..4ce06072f3b5 100644 --- a/drivers/regulator/pbias-regulator.c +++ b/drivers/regulator/pbias-regulator.c @@ -231,7 +231,7 @@ static struct platform_driver pbias_regulator_driver = { .probe = pbias_regulator_probe, .driver = { .name = "pbias-regulator", - .of_match_table = of_match_ptr(pbias_of_match), + .of_match_table = pbias_of_match, }, }; -- 2.34.1