From: Arnd Bergmann <arnd@xxxxxxxx>
The newly added driver fails to link when CONFIG_CRC8 is not set:
ld.lld-20: error: undefined symbol: crc8_populate_msb
ld.lld-20: error: undefined symbol: crc8
>>> vmlinux.o:(ad7779_spi_read)
Select this from Kconfig as we do for other drivers like it.
Fixes: cc20fa9e9ad4 ("drivers: iio: adc: add support for ad777x family")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/iio/adc/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index d8abe28eec89..849c90203071 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -290,6 +290,7 @@ config AD7768_1
config AD7779
tristate "Analog Devices AD7779 ADC driver"
depends on SPI
+ select CRC8
select IIO_BUFFER
help
Say yes here to build support for Analog Devices AD777X family
--
2.39.5
