linux/drivers/mfd/twl4030-audio.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * MFD driver for twl4030 audio submodule, which contains an audio codec, and
 * the vibra control.
 *
 * Author: Peter Ujfalusi <[email protected]>
 *
 * Copyright:   (C) 2009 Nokia Corporation
 */

#include <linux/module.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/mfd/twl.h>
#include <linux/mfd/core.h>
#include <linux/mfd/twl4030-audio.h>

#define TWL4030_AUDIO_CELLS …

static struct platform_device *twl4030_audio_dev;

struct twl4030_audio_resource { … };

struct twl4030_audio { … };

/*
 * Modify the resource, the function returns the content of the register
 * after the modification.
 */
static int twl4030_audio_set_resource(enum twl4030_audio_res id, int enable)
{ … }

static inline int twl4030_audio_get_resource(enum twl4030_audio_res id)
{ … }

/*
 * Enable the resource.
 * The function returns with error or the content of the register
 */
int twl4030_audio_enable_resource(enum twl4030_audio_res id)
{ … }
EXPORT_SYMBOL_GPL(…);

/*
 * Disable the resource.
 * The function returns with error or the content of the register
 */
int twl4030_audio_disable_resource(enum twl4030_audio_res id)
{ … }
EXPORT_SYMBOL_GPL(…);

unsigned int twl4030_audio_get_mclk(void)
{ … }
EXPORT_SYMBOL_GPL(…);

static bool twl4030_audio_has_codec(struct twl4030_audio_data *pdata,
			      struct device_node *parent)
{ … }

static bool twl4030_audio_has_vibra(struct twl4030_audio_data *pdata,
			      struct device_node *node)
{ … }

static int twl4030_audio_probe(struct platform_device *pdev)
{ … }

static void twl4030_audio_remove(struct platform_device *pdev)
{ … }

static const struct of_device_id twl4030_audio_of_match[] = …;
MODULE_DEVICE_TABLE(of, twl4030_audio_of_match);

static struct platform_driver twl4030_audio_driver = …;

module_platform_driver(…) …;

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_ALIAS(…) …;