This driver makes use of regmap, but does not select the required
module.
Add the missing 'select REGMAP'.
Fixes: b3689e14415a ("staging: iio: resolver: ad2s1210: use regmap for config registers")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>
---
drivers/iio/resolver/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/iio/resolver/Kconfig b/drivers/iio/resolver/Kconfig
index 424529d36080..640aef3e5c94 100644
--- a/drivers/iio/resolver/Kconfig
+++ b/drivers/iio/resolver/Kconfig
@@ -31,6 +31,7 @@ config AD2S1210
depends on SPI
depends on COMMON_CLK
depends on GPIOLIB || COMPILE_TEST
+ select REGMAP
help
Say yes here to build support for Analog Devices spi resolver
to digital converters, ad2s1210, provides direct access via sysfs.
--
2.43.0
