The only way this driver can be probed by MFD via its parent device. No other reference to 'microchip,at91sam9g45-usart-spi' exists in the kernel. Fixes the following W=1 kernel build warning(s): drivers/spi/spi-at91-usart.c:684:34: warning: ‘at91_usart_spi_dt_ids’ defined but not used [-Wunused-const-variable=] 684 | static const struct of_device_id at91_usart_spi_dt_ids[] = { | ^~~~~~~~~~~~~~~~~~~~~ Cc: Radu Pirea <radu_nicolae.pirea@xxxxxx> Cc: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx> Cc: Ludovic Desroches <ludovic.desroches@xxxxxxxxxxxxx> Suggested-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx> --- drivers/spi/spi-at91-usart.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/spi/spi-at91-usart.c b/drivers/spi/spi-at91-usart.c index 88033422a42ae..8c8352625d232 100644 --- a/drivers/spi/spi-at91-usart.c +++ b/drivers/spi/spi-at91-usart.c @@ -681,13 +681,6 @@ static const struct dev_pm_ops at91_usart_spi_pm_ops = { at91_usart_spi_runtime_resume, NULL) }; -static const struct of_device_id at91_usart_spi_dt_ids[] = { - { .compatible = "microchip,at91sam9g45-usart-spi"}, - { /* sentinel */} -}; - -MODULE_DEVICE_TABLE(of, at91_usart_spi_dt_ids); - static struct platform_driver at91_usart_spi_driver = { .driver = { .name = "at91_usart_spi", -- 2.25.1