1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/iio/imu/inv_icm45600/inv_icm45600_i3c.c b/drivers/iio/imu/inv_icm45600/inv_icm45600_i3c.c
new file mode 100644
index 000000000000..9247eae9b3e2
--- /dev/null
+++ b/drivers/iio/imu/inv_icm45600/inv_icm45600_i3c.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* Copyright (C) 2025 InvenSense, Inc. */
+
+#include <linux/err.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+
+#include <linux/i3c/device.h>
+#include <linux/i3c/master.h>
+
+#include "inv_icm45600.h"
+
+static const struct regmap_config inv_icm45600_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+};
+
+static const struct i3c_device_id inv_icm45600_i3c_ids[] = {
+	I3C_DEVICE_EXTRA_INFO(0x0235, 0x0000, 0x0011, (void *)NULL),
+	I3C_DEVICE_EXTRA_INFO(0x0235, 0x0000, 0x0084, (void *)NULL),
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(i3c, inv_icm45600_i3c_ids);
+
+static const struct inv_icm45600_chip_info *i3c_chip_info[] = {
+	&inv_icm45605_chip_info,
+	&inv_icm45606_chip_info,
+	&inv_icm45608_chip_info,
+	&inv_icm45634_chip_info,
+	&inv_icm45686_chip_info,
+	&inv_icm45687_chip_info,
+	&inv_icm45688p_chip_info,
+	&inv_icm45689_chip_info,
+};
+
+static int inv_icm45600_i3c_probe(struct i3c_device *i3cdev)
+{
+	int ret;
+	unsigned int whoami;
+	struct regmap *regmap;
+	const int nb_chip = ARRAY_SIZE(i3c_chip_info);
+	int chip;
+
+	regmap = devm_regmap_init_i3c(i3cdev, &inv_icm45600_regmap_config);
+	if (IS_ERR(regmap))
+		return dev_err_probe(&i3cdev->dev, PTR_ERR(regmap),
+					"Failed to register i3c regmap %ld\n", PTR_ERR(regmap));
+
+	ret = regmap_read(regmap, INV_ICM45600_REG_WHOAMI, &whoami);
+	if (ret)
+		return dev_err_probe(&i3cdev->dev, ret, "Failed to read part id %d\n", whoami);
+
+	for (chip = 0; chip < nb_chip; chip++) {
+		if (whoami == i3c_chip_info[chip]->whoami)
+			break;
+	}
+
+	if (chip == nb_chip)
+		return dev_err_probe(&i3cdev->dev, -ENODEV,
+				     "Failed to match part id %d\n", whoami);
+
+	return inv_icm45600_core_probe(regmap, i3c_chip_info[chip], false, NULL);
+}
+
+static struct i3c_driver inv_icm45600_driver = {
+	.driver = {
+		.name = "inv_icm45600_i3c",
+		.pm = pm_sleep_ptr(&inv_icm45600_pm_ops),
+	},
+	.probe = inv_icm45600_i3c_probe,
+	.id_table = inv_icm45600_i3c_ids,
+};
+module_i3c_driver(inv_icm45600_driver);
+
+MODULE_AUTHOR("Remi Buisson <remi.buisson@tdk.com>");
+MODULE_DESCRIPTION("InvenSense ICM-456xx i3c driver");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS("IIO_ICM45600");