[PATCH v2 2/6] iio: adc: ad4080: add support for AD4082

[Antoniu Miclaus]

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).

Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxx>
Reviewed-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx>
---
Changes in v2:
  - Dropped redundant Changes section from commit body.

 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 },
-- 
2.43.0