Re: [PATCH 2/6] iio: adc: ad4080: add support for AD4082

["Nuno Sá" <noname.nuno@gmail.com>]

On Fri, 2026-02-06 at 15:08 +0200, Antoniu Miclaus wrote:
> Add support for AD4082 20-bit SAR ADC. The AD4082 has the same
> resolution as AD4080 (20-bit) but differs in LVDS CNV clock count
> maximum (8 vs 7).
> 
> Changes:
> - Add AD4082_CHIP_ID definition (0x0052)
> - Create ad4082_channel with 20-bit resolution and 32-bit storage
> - Add ad4082_chip_info with lvds_cnv_clk_cnt_max = 8
> - Register AD4082 in device ID and OF match tables
> 
> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
> ---

And same,

Reviewed-by: Nuno Sá <nuno.sa@analog.com>

>  drivers/iio/adc/ad4080.c | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/drivers/iio/adc/ad4080.c b/drivers/iio/adc/ad4080.c
> index 7cf3b6ed7940..7cbbe284dea7 100644
> --- a/drivers/iio/adc/ad4080.c
> +++ b/drivers/iio/adc/ad4080.c
> @@ -127,6 +127,7 @@
>  #define AD4080_SPI_READ						BIT(7)
>  #define AD4080_CHIP_ID						0x0050
>  #define AD4081_CHIP_ID						0x0051
> +#define AD4082_CHIP_ID						0x0052
>  #define AD4083_CHIP_ID						0x0053
>  #define AD4084_CHIP_ID						0x0054
>  #define AD4086_CHIP_ID						0x0056
> @@ -442,6 +443,8 @@ static const struct iio_chan_spec ad4080_channel =
> AD4080_CHANNEL_DEFINE(20, 32)
>  
>  static const struct iio_chan_spec ad4081_channel = AD4080_CHANNEL_DEFINE(20, 32);
>  
> +static const struct iio_chan_spec ad4082_channel = AD4080_CHANNEL_DEFINE(20, 32);
> +
>  static const struct iio_chan_spec ad4083_channel = AD4080_CHANNEL_DEFINE(16, 16);
>  
>  static const struct iio_chan_spec ad4084_channel = AD4080_CHANNEL_DEFINE(16, 16);
> @@ -470,6 +473,16 @@ static const struct ad4080_chip_info ad4081_chip_info = {
>  	.lvds_cnv_clk_cnt_max = 2,
>  };
>  
> +static const struct ad4080_chip_info ad4082_chip_info = {
> +	.name = "ad4082",
> +	.product_id = AD4082_CHIP_ID,
> +	.scale_table = ad4080_scale_table,
> +	.num_scales = ARRAY_SIZE(ad4080_scale_table),
> +	.num_channels = 1,
> +	.channels = &ad4082_channel,
> +	.lvds_cnv_clk_cnt_max = 8,
> +};
> +
>  static const struct ad4080_chip_info ad4083_chip_info = {
>  	.name = "ad4083",
>  	.product_id = AD4083_CHIP_ID,
> @@ -666,6 +679,7 @@ static int ad4080_probe(struct spi_device *spi)
>  static const struct spi_device_id ad4080_id[] = {
>  	{ "ad4080", (kernel_ulong_t)&ad4080_chip_info },
>  	{ "ad4081", (kernel_ulong_t)&ad4081_chip_info },
> +	{ "ad4082", (kernel_ulong_t)&ad4082_chip_info },
>  	{ "ad4083", (kernel_ulong_t)&ad4083_chip_info },
>  	{ "ad4084", (kernel_ulong_t)&ad4084_chip_info },
>  	{ "ad4086", (kernel_ulong_t)&ad4086_chip_info },
> @@ -677,6 +691,7 @@ MODULE_DEVICE_TABLE(spi, ad4080_id);
>  static const struct of_device_id ad4080_of_match[] = {
>  	{ .compatible = "adi,ad4080", &ad4080_chip_info },
>  	{ .compatible = "adi,ad4081", &ad4081_chip_info },
> +	{ .compatible = "adi,ad4082", &ad4082_chip_info },
>  	{ .compatible = "adi,ad4083", &ad4083_chip_info },
>  	{ .compatible = "adi,ad4084", &ad4084_chip_info },
>  	{ .compatible = "adi,ad4086", &ad4086_chip_info },