[PATCH v2 4/6] iio: accel: adis16201: add ADIS16203 support
From: Shehryar Ahmad
Date: Sun Sep 13 2026 - 04:56:44 EST
Add ADIS16203 from staging to mainline ADIS16201. ADIS16203 shares same
SPI protocol and register addresses. Differing parameters are handled by
adis16201_chip_info structure.
ADIS16203 specific support includes DIAG_STAT_SELFTEST_FAIL_BIT, which
is supported only on ADIS16203, and a separate channel array.
Kconfig is updated accordingly.
Signed-off-by: Shehryar Ahmad <shehryar.amd@xxxxxxxxx>
---
drivers/iio/accel/Kconfig | 6 +++---
drivers/iio/accel/adis16201.c | 32 ++++++++++++++++++++++++++++++--
2 files changed, 33 insertions(+), 5 deletions(-)
diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
index 4094299e2..f884ec66f 100644
--- a/drivers/iio/accel/Kconfig
+++ b/drivers/iio/accel/Kconfig
@@ -7,13 +7,13 @@
menu "Accelerometers"
config ADIS16201
- tristate "Analog Devices ADIS16201 Dual-Axis Digital Inclinometer and Accelerometer"
+ tristate "ADIS16201 Digital Inclinometer and similar"
depends on SPI
select IIO_ADIS_LIB
select IIO_ADIS_LIB_BUFFER if IIO_BUFFER
help
- Say Y here to build support for Analog Devices adis16201 dual-axis
- digital inclinometer and accelerometer.
+ Say Y here to build support for Analog Devices adis16201 Digital
+ Inclinometer and similar
To compile this driver as a module, say M here: the module will
be called adis16201.
diff --git a/drivers/iio/accel/adis16201.c b/drivers/iio/accel/adis16201.c
index e0bf7df50..8e8e612fd 100644
--- a/drivers/iio/accel/adis16201.c
+++ b/drivers/iio/accel/adis16201.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/*
- * ADIS16201 Dual-Axis Digital Inclinometer and Accelerometer
+ * ADIS16201 Digital Inclinometer and similar
*
* Copyright 2010 Analog Devices Inc.
*/
@@ -63,6 +63,7 @@
#define ADIS16201_DIAG_STAT_REG 0x3C
#define ADIS16201_DIAG_STAT_ALARM2 BIT(9)
#define ADIS16201_DIAG_STAT_ALARM1 BIT(8)
+#define ADIS16203_DIAG_STAT_SELFTEST_FAIL_BIT 5 /* ADIS16203 only */
#define ADIS16201_DIAG_STAT_SPI_FAIL_BIT 3
#define ADIS16201_DIAG_STAT_FLASH_UPT_FAIL_BIT 2
/* Power supply above 3.625 V */
@@ -232,6 +233,15 @@ static const struct iio_chan_spec adis16201_channels[] = {
IIO_CHAN_SOFT_TIMESTAMP(7)
};
+static const struct iio_chan_spec adis16203_channels[] = {
+ ADIS_SUPPLY_CHAN(ADIS16201_SUPPLY_OUT_REG, ADIS16201_SCAN_SUPPLY, 0, 12),
+ ADIS_TEMP_CHAN(ADIS16201_TEMP_OUT_REG, ADIS16201_SCAN_TEMP, 0, 12),
+ ADIS_AUX_ADC_CHAN(ADIS16201_AUX_ADC_REG, ADIS16201_SCAN_AUX_ADC, 0, 12),
+ ADIS_INCLI_CHAN(X, ADIS16201_XINCL_OUT_REG, ADIS16201_SCAN_INCLI_X,
+ BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
+ IIO_CHAN_SOFT_TIMESTAMP(7),
+};
+
static const struct adis16201_chip_info adis16201_chip_data = {
.arr_channels = adis16201_channels,
.incli_scale_val2 = 100000,
@@ -246,6 +256,21 @@ static const struct adis16201_chip_info adis16201_chip_data = {
.name = "adis16201",
};
+static const struct adis16201_chip_info adis16203_chip_data = {
+ .arr_channels = adis16203_channels,
+ .incli_scale_val2 = 25000,
+ .write_mask_incli = GENMASK(13, 0),
+ .diag_stat_mask =
+ BIT(ADIS16203_DIAG_STAT_SELFTEST_FAIL_BIT) |
+ BIT(ADIS16201_DIAG_STAT_SPI_FAIL_BIT) |
+ BIT(ADIS16201_DIAG_STAT_FLASH_UPT_FAIL_BIT) |
+ BIT(ADIS16201_DIAG_STAT_POWER_HIGH_BIT) |
+ BIT(ADIS16201_DIAG_STAT_POWER_LOW_BIT),
+ .read_bits_incli = 14,
+ .num_channels = ARRAY_SIZE(adis16203_channels),
+ .name = "adis16203",
+};
+
static const struct iio_info adis16201_info = {
.read_raw = adis16201_read_raw,
.write_raw = adis16201_write_raw,
@@ -253,6 +278,7 @@ static const struct iio_info adis16201_info = {
};
static const char * const adis16201_status_error_msgs[] = {
+ [ADIS16203_DIAG_STAT_SELFTEST_FAIL_BIT] = "Self test failure",
[ADIS16201_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure",
[ADIS16201_DIAG_STAT_FLASH_UPT_FAIL_BIT] = "Flash update failed",
[ADIS16201_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V",
@@ -322,6 +348,7 @@ static int adis16201_probe(struct spi_device *spi)
static const struct of_device_id adis16201_of_match[] = {
{ .compatible = "adi,adis16201", .data = &adis16201_chip_data },
+ { .compatible = "adi,adis16203", .data = &adis16203_chip_data },
{ },
};
@@ -329,6 +356,7 @@ MODULE_DEVICE_TABLE(of, adis16201_of_match);
static const struct spi_device_id adis16201_ids[] = {
{ .name = "adis16201", .driver_data = (kernel_ulong_t)&adis16201_chip_data },
+ { .name = "adis16203", .driver_data = (kernel_ulong_t)&adis16203_chip_data },
{ },
};
@@ -345,6 +373,6 @@ static struct spi_driver adis16201_driver = {
module_spi_driver(adis16201_driver);
MODULE_AUTHOR("Barry Song <21cnbao@xxxxxxxxx>");
-MODULE_DESCRIPTION("Analog Devices ADIS16201 Dual-Axis Digital Inclinometer and Accelerometer");
+MODULE_DESCRIPTION("Analog Devices ADIS16201 Inclinometer and similar");
MODULE_LICENSE("GPL v2");
MODULE_IMPORT_NS("IIO_ADISLIB");
--
2.43.0