extcon: usbc-tusb320: add USB_ROLE_SWITCH dependency

When CONFIG_USB_ROLE_SWITCH=m, tusb320 cannot be built-in:

ld.lld: error: undefined symbol: fwnode_usb_role_switch_get
>>> referenced by extcon-usbc-tusb320.c
>>>               drivers/extcon/extcon-usbc-tusb320.o:(tusb320_probe) in archive vmlinux.a
ld.lld: error: undefined symbol: usb_role_switch_set_role
>>> referenced by extcon-usbc-tusb320.c
>>>               drivers/extcon/extcon-usbc-tusb320.o:(tusb320_state_update_handler) in archive vmlinux.a

Add the appropriate Kconfig dependency to prevent this
configuration but still allow the driver to be built-in
when USB_ROLE_SWITCH is disabled.

Fixes: df101446a402 ("extcon: usbc-tusb320: add usb_role_switch support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

diff --git a/drivers/extcon/Kconfig b/drivers/extcon/Kconfig
index 290186e..0ef1971 100644 (file)
--- a/drivers/extcon/Kconfig
+++ b/drivers/extcon/Kconfig
@@ -185,6 +185,7 @@ config EXTCON_USBC_TUSB320
        tristate "TI TUSB320 USB-C extcon support"
        depends on I2C && TYPEC
        select REGMAP_I2C
+       depends on USB_ROLE_SWITCH || !USB_ROLE_SWITCH
        help
          Say Y here to enable support for USB Type C cable detection extcon
          support using a TUSB320.