mfd: STw481x: Allow modular build

This driver depends on I2C, which may be a loadable module.
While you'd probably want both to be built-in in practice,
allowing a modular build avoids possible randconfig link
errors.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 43706928ef8674a86a4cc580b78f3a231093cbbf..e1f02c8290abd828517be2d7a3d1d8403446df3d 100644 (file)
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1225,7 +1225,7 @@ config MFD_WM8994
          functionaltiy of the device other drivers must be enabled.
 
 config MFD_STW481X
-       bool "Support for ST Microelectronics STw481x"
+       tristate "Support for ST Microelectronics STw481x"
        depends on I2C && ARCH_NOMADIK
        select REGMAP_I2C
        select MFD_CORE