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