Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
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/*
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* Copyright (c) 2025 Robert Bosch GmbH.
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*/
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#include <linux/mod_devicetable.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 "smi330.h"
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static int smi330_regmap_spi_read(void *context, const void *reg_buf,
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size_t reg_size, void *val_buf,
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size_t val_size)
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{
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struct spi_device *spi = context;
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/* Insert pad byte for reading */
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u8 reg[] = { *(u8 *)reg_buf, 0 };
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if (reg_size + 1 != ARRAY_SIZE(reg)) {
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dev_err(&spi->dev, "Invalid register size %zu\n", reg_size);
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return -EINVAL;
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}
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return spi_write_then_read(spi, reg, ARRAY_SIZE(reg), val_buf,
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val_size);
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}
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static int smi330_regmap_spi_write(void *context, const void *data,
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size_t count)
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{
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struct spi_device *spi = context;
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return spi_write(spi, data, count);
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}
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static const struct regmap_bus smi330_regmap_bus = {
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.read = smi330_regmap_spi_read,
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.write = smi330_regmap_spi_write,
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.read_flag_mask = 0x80,
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};
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static int smi330_spi_probe(struct spi_device *spi)
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{
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struct regmap *regmap;
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regmap = devm_regmap_init(&spi->dev, &smi330_regmap_bus, &spi->dev,
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&smi330_regmap_config);
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if (IS_ERR(regmap))
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return dev_err_probe(&spi->dev, PTR_ERR(regmap),
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"Failed to initialize SPI Regmap\n");
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return smi330_core_probe(&spi->dev, regmap);
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}
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static const struct spi_device_id smi330_spi_device_id[] = {
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{ .name = "smi330" },
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{ }
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};
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MODULE_DEVICE_TABLE(spi, smi330_spi_device_id);
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static const struct of_device_id smi330_of_match[] = {
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{ .compatible = "bosch,smi330" },
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{ }
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};
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MODULE_DEVICE_TABLE(of, smi330_of_match);
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static struct spi_driver smi330_spi_driver = {
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.probe = smi330_spi_probe,
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.id_table = smi330_spi_device_id,
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.driver = {
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.of_match_table = smi330_of_match,
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.name = "smi330_spi",
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},
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};
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module_spi_driver(smi330_spi_driver);
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MODULE_AUTHOR("Stefan Gutmann <stefan.gutmann@de.bosch.com>");
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MODULE_AUTHOR("Roman Huber <roman.huber@de.bosch.com>");
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MODULE_AUTHOR("Filip Andrei <Andrei.Filip@ro.bosch.com>");
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MODULE_AUTHOR("Drimbarean Avram Andrei <Avram-Andrei.Drimbarean@ro.bosch.com>");
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MODULE_DESCRIPTION("Bosch SMI330 SPI driver");
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MODULE_LICENSE("Dual BSD/GPL");
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MODULE_IMPORT_NS("IIO_SMI330");
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