[PATCH] iio: accel: fxls8962af: fix i2c dependency

[Arnd Bergmann]

From: Arnd Bergmann <arnd@xxxxxxxx>

With CONFIG_SPI=y and CONFIG_I2C=m, building fxls8962af into vmlinux
causes a link error against the I2C module:

aarch64-linux-ld: drivers/iio/accel/fxls8962af-core.o: in function `fxls8962af_fifo_flush':
fxls8962af-core.c:(.text+0x3a0): undefined reference to `i2c_verify_client'

Work around it by adding a Kconfig dependency that forces the SPI driver
to be a loadable module whenever I2C is a module.

Fixes: af959b7b96b8 ("iio: accel: fxls8962af: fix errata bug E3 - I2C burst reads")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
I'm not overly happy with the fix either, but couldn't think of
a better idea. If someone provide a different fix, please ignore
mine.
---
 drivers/iio/accel/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
index 0e56ace61103..8d8b1ba42ff8 100644
--- a/drivers/iio/accel/Kconfig
+++ b/drivers/iio/accel/Kconfig
@@ -231,6 +231,7 @@ config DMARD10
 
 config FXLS8962AF
 	tristate
+	depends on I2C || !I2C # cannot be built-in for modular I2C
 
 config FXLS8962AF_I2C
 	tristate "NXP FXLS8962AF/FXLS8964AF Accelerometer I2C Driver"
@@ -247,6 +248,7 @@ config FXLS8962AF_I2C
 config FXLS8962AF_SPI
 	tristate "NXP FXLS8962AF/FXLS8964AF Accelerometer SPI Driver"
 	depends on SPI
+	depends on I2C || !I2C
 	select FXLS8962AF
 	select REGMAP_SPI
 	help
-- 
2.29.2