Now that the driver makes use of `__clk_is_enabled()` in order to
know whether a `clk_disable_unprepare()` is needed or not on the
GCLK, a new dependency has been introduced: COMMON_CLK. If this
`CONFIG_COMMON_CLK` is not enabled, whatever config may have this
driver enabled without COMMON_CLK then an undefined reference to
`__clk_is_enabled()` will be issued by the linker.
Thus, make sure that, unless `CONFIG_COMMON_CLK` is enabled, this
driver is not compiled.
Fixes: 5e3ce1f26129 ("tty: serial: atmel: Make the driver aware of the existence of GCLK")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Sergiu Moga <sergiu.moga@xxxxxxxxxxxxx>
---
drivers/tty/serial/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index a18dd525e42b..1aec3cf002f7 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -127,6 +127,7 @@ config SERIAL_SB1250_DUART_CONSOLE
config SERIAL_ATMEL
bool "AT91 on-chip serial port support"
+ depends on COMMON_CLK
depends on ARCH_AT91 || COMPILE_TEST
select SERIAL_CORE
select SERIAL_MCTRL_GPIO if GPIOLIB
--
2.34.1
