serial: liteuart: relax compile-test dependencies

The LITEX symbol is neither a build or runtime dependency for the
liteuart serial driver.

LITEX is selected by the "LiteX SoC Controller" driver, which does a
probe-time register-access sanity check and panics if the SoC has not
been configured correctly. That driver's Kconfig entry asserts that any
LiteX driver using the LiteX register accessors should depend on LITEX,
but currently only the serial driver complies.

Relax this LITEX "dependency" in order to make it easier to compile test
the driver.

Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211117100512.5058-4-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 6ff94cf..fc543ac 100644 (file)
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -1533,7 +1533,7 @@ config SERIAL_LITEUART
        tristate "LiteUART serial port support"
        depends on HAS_IOMEM
        depends on OF || COMPILE_TEST
        tristate "LiteUART serial port support"
        depends on HAS_IOMEM
        depends on OF || COMPILE_TEST

-       depends on LITEX
+       depends on LITEX || COMPILE_TEST

        select SERIAL_CORE
        help
          This driver is for the FPGA-based LiteUART serial controller from LiteX
        select SERIAL_CORE
        help
          This driver is for the FPGA-based LiteUART serial controller from LiteX