// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause // // cs35l45-spi.c -- CS35L45 SPI driver // // Copyright 2019-2022 Cirrus Logic, Inc. // // Author: James Schulman <james.schulman@cirrus.com> #include <linux/device.h> #include <linux/module.h> #include <linux/regmap.h> #include <linux/spi/spi.h> #include "cs35l45.h" static int cs35l45_spi_probe(struct spi_device *spi) { struct cs35l45_private *cs35l45; struct device *dev = &spi->dev; int ret; cs35l45 = devm_kzalloc(dev, sizeof(struct cs35l45_private), GFP_KERNEL); if (cs35l45 == NULL) return -ENOMEM; spi->max_speed_hz = CS35L45_SPI_MAX_FREQ; spi_setup(spi); spi_set_drvdata(spi, cs35l45); cs35l45->regmap = devm_regmap_init_spi(spi, &cs35l45_spi_regmap); if (IS_ERR(cs35l45->regmap)) { ret = PTR_ERR(cs35l45->regmap); dev_err(dev, "Failed to allocate register map: %d\n", ret); return ret; } cs35l45->dev = dev; cs35l45->irq = spi->irq; cs35l45->bus_type = CONTROL_BUS_SPI; return cs35l45_probe(cs35l45); } static void cs35l45_spi_remove(struct spi_device *spi) { struct cs35l45_private *cs35l45 = spi_get_drvdata(spi); cs35l45_remove(cs35l45); } static const struct of_device_id cs35l45_of_match[] = { { .compatible = "cirrus,cs35l45" }, {}, }; MODULE_DEVICE_TABLE(of, cs35l45_of_match); static const struct spi_device_id cs35l45_id_spi[] = { { "cs35l45", 0 }, {} }; MODULE_DEVICE_TABLE(spi, cs35l45_id_spi); static struct spi_driver cs35l45_spi_driver = { .driver = { .name = "cs35l45", .of_match_table = cs35l45_of_match, .pm = &cs35l45_pm_ops, }, .id_table = cs35l45_id_spi, .probe = cs35l45_spi_probe, .remove = cs35l45_spi_remove, }; module_spi_driver(cs35l45_spi_driver); MODULE_DESCRIPTION("SPI CS35L45 driver"); MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>"); MODULE_LICENSE("Dual BSD/GPL"); MODULE_IMPORT_NS(SND_SOC_CS35L45);