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iio: adc: ad4080: add support for AD4086

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Add support for AD4086 14-bit SAR ADC. The AD4086 differs from
AD4080 in resolution (14-bit vs 20-bit) and LVDS CNV clock count
maximum (4 vs 7).

Changes:
- Add AD4086_CHIP_ID definition (0x0056)
- Create ad4086_channel with 14-bit resolution and 16-bit storage
- Add ad4086_chip_info with lvds_cnv_clk_cnt_max = 4
- Register AD4086 in device ID and OF match tables

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Antoniu Miclaus 2025-10-21 10:53:46 +00:00 committed by Jonathan Cameron
parent 45e81d6ac0
commit 916354e7c7
1 changed files with 15 additions and 0 deletions
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15
drivers/iio/adc/ad4080.c
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@ -129,6 +129,7 @@
#define AD4081_CHIP_ID 0x0051
#define AD4083_CHIP_ID 0x0053
#define AD4084_CHIP_ID 0x0054
#define AD4086_CHIP_ID 0x0056
#define AD4080_LVDS_CNV_CLK_CNT_MAX 7
@ -444,6 +445,8 @@ 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);
static const struct iio_chan_spec ad4086_channel = AD4080_CHANNEL_DEFINE(14, 16);
static const struct ad4080_chip_info ad4080_chip_info = {
.name = "ad4080",
.product_id = AD4080_CHIP_ID,
@ -484,6 +487,16 @@ static const struct ad4080_chip_info ad4084_chip_info = {
.lvds_cnv_clk_cnt_max = 2,
};
static const struct ad4080_chip_info ad4086_chip_info = {
.name = "ad4086",
.product_id = AD4086_CHIP_ID,
.scale_table = ad4080_scale_table,
.num_scales = ARRAY_SIZE(ad4080_scale_table),
.num_channels = 1,
.channels = &ad4086_channel,
.lvds_cnv_clk_cnt_max = 4,
};
static int ad4080_setup(struct iio_dev *indio_dev)
{
struct ad4080_state *st = iio_priv(indio_dev);
@ -642,6 +655,7 @@ static const struct spi_device_id ad4080_id[] = {
{ "ad4081", (kernel_ulong_t)&ad4081_chip_info },
{ "ad4083", (kernel_ulong_t)&ad4083_chip_info },
{ "ad4084", (kernel_ulong_t)&ad4084_chip_info },
{ "ad4086", (kernel_ulong_t)&ad4086_chip_info },
{ }
};
MODULE_DEVICE_TABLE(spi, ad4080_id);
@ -651,6 +665,7 @@ static const struct of_device_id ad4080_of_match[] = {
{ .compatible = "adi,ad4081", &ad4081_chip_info },
{ .compatible = "adi,ad4083", &ad4083_chip_info },
{ .compatible = "adi,ad4084", &ad4084_chip_info },
{ .compatible = "adi,ad4086", &ad4086_chip_info },
{ }
};
MODULE_DEVICE_TABLE(of, ad4080_of_match);