Since atmel_serial.c uses interfaces that are provided by
the COMMON_CLK Kconfig symbol, the driver should depend on
COMMON_CLK to prevent build errors.
ld: drivers/tty/serial/atmel_serial.o: in function `atmel_serial_pm':
atmel_serial.c:(.text+0x1553): undefined reference to `__clk_is_enabled'
ld: drivers/tty/serial/atmel_serial.o: in function `atmel_set_termios':
atmel_serial.c:(.text+0x1dfe): undefined reference to `__clk_is_enabled'
Fixes: 5e3ce1f26129 ("tty: serial: atmel: Make the driver aware of the existence of GCLK")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Sergiu Moga <sergiu.moga@xxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Richard Genoud <richard.genoud@xxxxxxxxx>
Cc: linux-serial@xxxxxxxxxxxxxxx
Cc: Jiri Slaby <jirislaby@xxxxxxxxxx>
---
drivers/tty/serial/Kconfig | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -128,6 +128,7 @@ config SERIAL_SB1250_DUART_CONSOLE
config SERIAL_ATMEL
bool "AT91 on-chip serial port support"
depends on ARCH_AT91 || COMPILE_TEST
+ depends on COMMON_CLK
select SERIAL_CORE
select SERIAL_MCTRL_GPIO if GPIOLIB
select MFD_AT91_USART
