serial: 8250: extend compile-test coverage

Allow more drivers to be compile tested more easily, for example, when
doing subsystem-wide changes.

Verified on X86_64 as well as arm, powerpc and m68k with minimal configs
in order to catch missing implicit build dependencies.

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210715083011.18887-1-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
index d1b3c23..71ae16d 100644 (file)
--- a/drivers/tty/serial/8250/Kconfig
+++ b/drivers/tty/serial/8250/Kconfig
@@ -363,7 +363,7 @@ config SERIAL_8250_BCM2835AUX
 config SERIAL_8250_FSL
        bool
        depends on SERIAL_8250_CONSOLE
-       default PPC || ARM || ARM64
+       default PPC || ARM || ARM64 || COMPILE_TEST
 
 config SERIAL_8250_DW
        tristate "Support for Synopsys DesignWare 8250 quirks"
@@ -375,7 +375,8 @@ config SERIAL_8250_DW
 
 config SERIAL_8250_EM
        tristate "Support for Emma Mobile integrated serial port"
-       depends on SERIAL_8250 && ARM && HAVE_CLK
+       depends on SERIAL_8250 && HAVE_CLK
+       depends on ARM || COMPILE_TEST
        help
          Selecting this option will add support for the integrated serial
          port hardware found on the Emma Mobile line of processors.
@@ -383,7 +384,8 @@ config SERIAL_8250_EM
 
 config SERIAL_8250_IOC3
        tristate "SGI IOC3 8250 UART support"
-       depends on SGI_MFD_IOC3 && SERIAL_8250
+       depends on SERIAL_8250
+       depends on SGI_MFD_IOC3 || COMPILE_TEST
        select SERIAL_8250_EXTENDED
        select SERIAL_8250_SHARE_IRQ
        help
@@ -495,7 +497,7 @@ config SERIAL_8250_MID
 config SERIAL_8250_PXA
        tristate "PXA serial port support"
        depends on SERIAL_8250
-       depends on ARCH_PXA || ARCH_MMP
+       depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
        help
          If you have a machine based on an Intel XScale PXA2xx CPU you can
          enable its onboard serial ports by enabling this option. The option is