4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx> commit 4c4834fd8696a949d1b1f1c2c5b96e1ad2083b02 upstream. This driver makes use of triggered buffers, but does not select the required modules. Fixes: 2a86487786b5 ("iio: adc: ti-ads8688: add trigger and buffer support") Add the missing 'select IIO_BUFFER' and 'select IIO_TRIGGERED_BUFFER'. Signed-off-by: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx> Reviewed-by: Sean Nyekjaer <sean@xxxxxxxxxx> Link: https://patch.msgid.link/20241003-iio-select-v1-4-67c0385197cd@xxxxxxxxx Cc: <Stable@xxxxxxxxxxxxxxx> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/iio/adc/Kconfig | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -852,6 +852,8 @@ config TI_ADS7950 config TI_ADS8688 tristate "Texas Instruments ADS8688" depends on SPI && OF + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER help If you say yes here you get support for Texas Instruments ADS8684 and and ADS8688 ADC chips