sound/pci/hda/cs35l41_hda_spi.c

// SPDX-License-Identifier: GPL-2.0
//
// cs35l41.c -- CS35l41 HDA SPI driver
//
// Copyright 2021 Cirrus Logic, Inc.
//
// Author: Lucas Tanure <tanureal@opensource.cirrus.com>

#include <linux/acpi.h>
#include <linux/module.h>
#include <linux/spi/spi.h>

#include "cs35l41_hda.h"

static int cs35l41_hda_spi_probe(struct spi_device *spi)
{
	const char *device_name;

	/* Compare against the device name so it works for SPI, normal ACPI
	 * and for ACPI by spi-multi-instantiate matching cases
	 */
	if (strstr(dev_name(&spi->dev), "CSC3551"))
		device_name = "CSC3551";
	else
		return -ENODEV;

	return cs35l41_hda_probe(&spi->dev, device_name, spi->chip_select, spi->irq,
				 devm_regmap_init_spi(spi, &cs35l41_regmap_spi));
}

static int cs35l41_hda_spi_remove(struct spi_device *spi)
{
	return cs35l41_hda_remove(&spi->dev);
}

static const struct spi_device_id cs35l41_hda_spi_id[] = {
	{ "cs35l41-hda", 0 },
	{}
};

#ifdef CONFIG_ACPI
static const struct acpi_device_id cs35l41_acpi_hda_match[] = {
	{ "CSC3551", 0 },
	{},
};
MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_hda_match);
#endif

static struct spi_driver cs35l41_spi_driver = {
	.driver = {
		.name		= "cs35l41_hda",
		.acpi_match_table = ACPI_PTR(cs35l41_acpi_hda_match),
	},
	.id_table	= cs35l41_hda_spi_id,
	.probe		= cs35l41_hda_spi_probe,
	.remove		= cs35l41_hda_spi_remove,
};

module_spi_driver(cs35l41_spi_driver);

MODULE_DESCRIPTION("HDA CS35L41 driver");
MODULE_AUTHOR("Lucas Tanure <tanureal@opensource.cirrus.com>");
MODULE_LICENSE("GPL");