108 lines
2.9 KiB
C
108 lines
2.9 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/bitfield.h>
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#include <linux/device.h>
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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/spi/spi.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 int inv_icm45600_spi_bus_setup(struct inv_icm45600_state *st)
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{
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/* Set slew rates for SPI. */
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return regmap_update_bits(st->map, INV_ICM45600_REG_DRIVE_CONFIG0,
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INV_ICM45600_DRIVE_CONFIG0_SPI_MASK,
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FIELD_PREP(INV_ICM45600_DRIVE_CONFIG0_SPI_MASK,
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INV_ICM45600_SPI_SLEW_RATE_5NS));
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}
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static int inv_icm45600_probe(struct spi_device *spi)
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{
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const struct inv_icm45600_chip_info *chip_info;
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struct regmap *regmap;
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chip_info = spi_get_device_match_data(spi);
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if (!chip_info)
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return -ENODEV;
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/* Use SPI specific regmap. */
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regmap = devm_regmap_init_spi(spi, &inv_icm45600_regmap_config);
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if (IS_ERR(regmap))
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return PTR_ERR(regmap);
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return inv_icm45600_core_probe(regmap, chip_info, true,
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inv_icm45600_spi_bus_setup);
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}
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/*
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* The device id table is used to identify which device is
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* supported by this driver.
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*/
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static const struct spi_device_id inv_icm45600_id[] = {
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{ "icm45605", (kernel_ulong_t)&inv_icm45605_chip_info },
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{ "icm45606", (kernel_ulong_t)&inv_icm45606_chip_info },
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{ "icm45608", (kernel_ulong_t)&inv_icm45608_chip_info },
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{ "icm45634", (kernel_ulong_t)&inv_icm45634_chip_info },
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{ "icm45686", (kernel_ulong_t)&inv_icm45686_chip_info },
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{ "icm45687", (kernel_ulong_t)&inv_icm45687_chip_info },
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{ "icm45688p", (kernel_ulong_t)&inv_icm45688p_chip_info },
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{ "icm45689", (kernel_ulong_t)&inv_icm45689_chip_info },
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{ }
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};
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MODULE_DEVICE_TABLE(spi, inv_icm45600_id);
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static const struct of_device_id inv_icm45600_of_matches[] = {
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{
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.compatible = "invensense,icm45605",
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.data = &inv_icm45605_chip_info,
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}, {
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.compatible = "invensense,icm45606",
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.data = &inv_icm45606_chip_info,
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}, {
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.compatible = "invensense,icm45608",
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.data = &inv_icm45608_chip_info,
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}, {
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.compatible = "invensense,icm45634",
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.data = &inv_icm45634_chip_info,
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}, {
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.compatible = "invensense,icm45686",
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.data = &inv_icm45686_chip_info,
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}, {
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.compatible = "invensense,icm45687",
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.data = &inv_icm45687_chip_info,
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}, {
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.compatible = "invensense,icm45688p",
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.data = &inv_icm45688p_chip_info,
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}, {
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.compatible = "invensense,icm45689",
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.data = &inv_icm45689_chip_info,
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},
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{ }
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};
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MODULE_DEVICE_TABLE(of, inv_icm45600_of_matches);
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static struct spi_driver inv_icm45600_driver = {
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.driver = {
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.name = "inv-icm45600-spi",
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.of_match_table = inv_icm45600_of_matches,
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.pm = pm_ptr(&inv_icm45600_pm_ops),
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},
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.id_table = inv_icm45600_id,
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.probe = inv_icm45600_probe,
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};
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module_spi_driver(inv_icm45600_driver);
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MODULE_AUTHOR("InvenSense, Inc.");
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MODULE_DESCRIPTION("InvenSense ICM-456xx SPI driver");
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MODULE_LICENSE("GPL");
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MODULE_IMPORT_NS("IIO_ICM45600");
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