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/rpi-panel-attiny-regulator.c:390:34: error: ‘attiny_dt_ids’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- drivers/regulator/rpi-panel-attiny-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/rpi-panel-attiny-regulator.c b/drivers/regulator/rpi-panel-attiny-regulator.c index 34514976475e..3953fc1f389f 100644 --- a/drivers/regulator/rpi-panel-attiny-regulator.c +++ b/drivers/regulator/rpi-panel-attiny-regulator.c @@ -396,7 +396,7 @@ MODULE_DEVICE_TABLE(of, attiny_dt_ids); static struct i2c_driver attiny_regulator_driver = { .driver = { .name = "rpi_touchscreen_attiny", - .of_match_table = of_match_ptr(attiny_dt_ids), + .of_match_table = attiny_dt_ids, }, .probe_new = attiny_i2c_probe, .remove = attiny_i2c_remove, -- 2.34.1