mfd: at91-usart: Do not use compatible to register child devices

There are no separate serial/SPI devices under the at91-usart MFD, but
actually the MFD is used as a serial or a SPI device. There are no DT
sub-nodes for the MFD children, so we should use platform device API to
register the drivers.

Suggested-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --git a/drivers/mfd/at91-usart.c b/drivers/mfd/at91-usart.c
index 6a8351a4588e2a83f559b35e57c8aa8f0f396c0b..7f08cb60c58b9e73184e7c74af47af6654851c74 100644 (file)
--- a/drivers/mfd/at91-usart.c
+++ b/drivers/mfd/at91-usart.c
@@ -15,15 +15,11 @@
 #include <linux/of.h>
 #include <linux/property.h>
 
-static const struct mfd_cell at91_usart_spi_subdev = {
-       .name = "at91_usart_spi",
-       .of_compatible = "microchip,at91sam9g45-usart-spi",
-};
+static const struct mfd_cell at91_usart_spi_subdev =
+       MFD_CELL_NAME("at91_usart_spi");
 
-static const struct mfd_cell at91_usart_serial_subdev = {
-       .name = "atmel_usart_serial",
-       .of_compatible = "atmel,at91rm9200-usart-serial",
-};
+static const struct mfd_cell at91_usart_serial_subdev =
+       MFD_CELL_NAME("atmel_usart_serial");
 
 static int at91_usart_mode_probe(struct platform_device *pdev)
 {