On 9/5/24 3:23 AM, Alexandru Ardelean wrote:
> There are some newer additions to the AD7606 family, which support 18 bit
> precision.
> Up until now, all chips were 16 bit.
>
> This change adds a 'bits' parameter to the AD760X_CHANNEL macro and renames
> 'ad7606_channels' -> 'ad7606_channels_16bit' for the current devices.
>
> The AD7606_SW_CHANNEL() macro is also introduced, as a short-hand for IIO
> channels in SW mode.
>
> Signed-off-by: Alexandru Ardelean <aardelean@xxxxxxxxxxxx>
> ---
...
> diff --git a/drivers/iio/adc/ad7606.h b/drivers/iio/adc/ad7606.h
> index 0c6a88cc4695..771121350f98 100644
> --- a/drivers/iio/adc/ad7606.h
> +++ b/drivers/iio/adc/ad7606.h
> @@ -8,7 +8,7 @@
> #ifndef IIO_ADC_AD7606_H_
> #define IIO_ADC_AD7606_H_
>
> -#define AD760X_CHANNEL(num, mask_sep, mask_type, mask_all) { \
> +#define AD760X_CHANNEL(num, mask_sep, mask_type, mask_all, bits) { \
> .type = IIO_VOLTAGE, \
> .indexed = 1, \
> .channel = num, \
> @@ -19,24 +19,26 @@
> .scan_index = num, \
> .scan_type = { \
> .sign = 's', \
> - .realbits = 16, \
> - .storagebits = 16, \
> + .realbits = (bits), \
> + .storagebits = (bits), \
Technically OK in this patch since bits is still always 16 but we
can avoid changing the same line again later to:
(bits) > 16 ? 32 : 16
if we just do that in this patch.
> .endianness = IIO_CPU, \
> }, \
> }
