// SPDX-License-Identifier: GPL-2.0
//
// cs35l41-spi.c -- CS35l41 SPI driver
//
// Copyright 2017-2021 Cirrus Logic, Inc.
//
// Author: David Rhodes <david.rhodes@cirrus.com>

#include <linux/acpi.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>

#include "cs35l41.h"

static const struct spi_device_id cs35l41_id_spi[] = {
        { "cs35l40", 0 },
        { "cs35l41", 0 },
        { "cs35l51", 0 },
        { "cs35l53", 0 },
        {}
};

MODULE_DEVICE_TABLE(spi, cs35l41_id_spi);

static int cs35l41_spi_probe(struct spi_device *spi)
{
        const struct regmap_config *regmap_config = &cs35l41_regmap_spi;
        struct cs35l41_hw_cfg *hw_cfg = dev_get_platdata(&spi->dev);
        struct cs35l41_private *cs35l41;
        int ret;

        cs35l41 = devm_kzalloc(&spi->dev, sizeof(struct cs35l41_private), GFP_KERNEL);
        if (!cs35l41)
                return -ENOMEM;

        spi->max_speed_hz = CS35L41_SPI_MAX_FREQ;
        ret = spi_setup(spi);
        if (ret < 0)
                return ret;

        spi_set_drvdata(spi, cs35l41);
        cs35l41->regmap = devm_regmap_init_spi(spi, regmap_config);
        if (IS_ERR(cs35l41->regmap))
                return dev_err_probe(cs35l41->dev, PTR_ERR(cs35l41->regmap),
                                     "Failed to allocate register map\n");

        cs35l41->dev = &spi->dev;
        cs35l41->irq = spi->irq;

        return cs35l41_probe(cs35l41, hw_cfg);
}

static void cs35l41_spi_remove(struct spi_device *spi)
{
        struct cs35l41_private *cs35l41 = spi_get_drvdata(spi);

        cs35l41_remove(cs35l41);
}

#ifdef CONFIG_OF
static const struct of_device_id cs35l41_of_match[] = {
        { .compatible = "cirrus,cs35l40" },
        { .compatible = "cirrus,cs35l41" },
        {},
};
MODULE_DEVICE_TABLE(of, cs35l41_of_match);
#endif

#ifdef CONFIG_ACPI
static const struct acpi_device_id cs35l41_acpi_match[] = {
        { "CSC3541", 0 }, /* Cirrus Logic PnP ID + part ID */
        { "CLSA3541", 0 }, /* Cirrus Logic PnP ID + part ID */
        {},
};
MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_match);
#endif

static struct spi_driver cs35l41_spi_driver = {
        .driver = {
                .name           = "cs35l41",
                .pm             = pm_ptr(&cs35l41_pm_ops),
                .of_match_table = of_match_ptr(cs35l41_of_match),
                .acpi_match_table = ACPI_PTR(cs35l41_acpi_match),
        },
        .id_table       = cs35l41_id_spi,
        .probe          = cs35l41_spi_probe,
        .remove         = cs35l41_spi_remove,
};

module_spi_driver(cs35l41_spi_driver);

MODULE_DESCRIPTION("SPI CS35L41 driver");
MODULE_AUTHOR("David Rhodes, Cirrus Logic Inc, <david.rhodes@cirrus.com>");
MODULE_LICENSE("GPL");