[PATCH] drivers: iio: adc: ad777x depends on CRC8

[Arnd Bergmann]

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