The driver fails to build on x86 because writel_relaxed isn't available there. That function exists on arm, arm64, avr32, hexagon, mips and sh, but adding all these is overkill so stick to arm only. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx> --- drivers/tty/serial/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index 5e3d689..1e31d7d 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -1424,8 +1424,8 @@ config SERIAL_AR933X_NR_UARTS to support. config SERIAL_EFM32_UART - tristate "EFM32 UART/USART port." - depends on ARCH_EFM32 + tristate "EFM32 UART/USART port" + depends on ARM && (ARCH_EFM32 || COMPILE_TEST) select SERIAL_CORE help This driver support the USART and UART ports on -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
