[PATCH -next] power: supply: mt6370: Fix Kconfig dependency

[Ren Zhijie]

If CONFIG_IIO is not set,
make ARCH=x86_64 CROSS_COMPILE=x86_64-linux-gnu-,
will be failed, like this:

drivers/power/supply/mt6370-charger.o: In function `mt6370_chg_mivr_dwork_func':
mt6370-charger.c:(.text+0x670): undefined reference to `iio_read_channel_processed'
drivers/power/supply/mt6370-charger.o: In function `mt6370_chg_probe':
mt6370-charger.c:(.text+0xb43): undefined reference to `devm_iio_channel_get_all'
make: *** [vmlinux] Error 1

To fix this build error, add depends on IIO to config CHARGER_MT6370 dependency.

Fixes: 233cb8a47d65 ("power: supply: mt6370: Add MediaTek MT6370 charger driver")
Signed-off-by: Ren Zhijie <renzhijie2@xxxxxxxxxx>
---
 drivers/power/supply/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
index 591deb82e2c6..62111f4bb093 100644
--- a/drivers/power/supply/Kconfig
+++ b/drivers/power/supply/Kconfig
@@ -623,6 +623,7 @@ config CHARGER_MT6370
 	tristate "MediaTek MT6370 Charger Driver"
 	depends on MFD_MT6370
 	depends on REGULATOR
+	depends on IIO
 	select LINEAR_RANGES
 	help
 	  Say Y here to enable MT6370 Charger Part.
-- 
2.17.1