Release 4.12 include/linux/mfd/wm8994/core.h

/*
 * include/linux/mfd/wm8994/core.h -- Core interface for WM8994
 *
 * Copyright 2009 Wolfson Microelectronics PLC.
 *
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 *
 */

#ifndef __MFD_WM8994_CORE_H__

#define __MFD_WM8994_CORE_H__

#include <linux/mutex.h>
#include <linux/interrupt.h>
#include <linux/regmap.h>

#include <linux/mfd/wm8994/pdata.h>


enum wm8994_type {
	
WM8994 = 0,
	
WM8958 = 1,
	
WM1811 = 2,
};

struct regulator_dev;
struct regulator_bulk_data;
struct irq_domain;


#define WM8994_NUM_GPIO_REGS 11

#define WM8994_NUM_LDO_REGS   2

#define WM8994_NUM_IRQ_REGS   2


#define WM8994_IRQ_TEMP_SHUT		0

#define WM8994_IRQ_MIC1_DET		1

#define WM8994_IRQ_MIC1_SHRT		2

#define WM8994_IRQ_MIC2_DET		3

#define WM8994_IRQ_MIC2_SHRT		4

#define WM8994_IRQ_FLL1_LOCK		5

#define WM8994_IRQ_FLL2_LOCK		6

#define WM8994_IRQ_SRC1_LOCK		7

#define WM8994_IRQ_SRC2_LOCK		8

#define WM8994_IRQ_AIF1DRC1_SIG_DET	9

#define WM8994_IRQ_AIF1DRC2_SIG_DET	10

#define WM8994_IRQ_AIF2DRC_SIG_DET	11

#define WM8994_IRQ_FIFOS_ERR		12

#define WM8994_IRQ_WSEQ_DONE		13

#define WM8994_IRQ_DCS_DONE		14

#define WM8994_IRQ_TEMP_WARN		15

/* GPIOs in the chip are numbered from 1-11 */

#define WM8994_IRQ_GPIO(x) (x + WM8994_IRQ_TEMP_WARN)


struct wm8994 {
	
struct wm8994_pdata pdata;

	
enum wm8994_type type;
	
int revision;
	
int cust_id;

	
struct device *dev;
	
struct regmap *regmap;

	
bool ldo_ena_always_driven;

	
int gpio_base;
	
int irq_base;

	
int irq;
	
struct regmap_irq_chip_data *irq_data;
	
struct irq_domain *edge_irq;

	/* Used over suspend/resume */
	
bool suspended;

	
struct regulator_dev *dbvdd;
	
int num_supplies;
	
struct regulator_bulk_data *supplies;
};

/* Device I/O API */



static inline int wm8994_reg_read(struct wm8994 *wm8994, unsigned short reg)
{
	unsigned int val;
	int ret;

	ret = regmap_read(wm8994->regmap, reg, &val);

	if (ret < 0)
		return ret;
	else
		return val;
}

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static inline int wm8994_reg_write(struct wm8994 *wm8994, unsigned short reg,
				   unsigned short val)
{
	return regmap_write(wm8994->regmap, reg, val);
}

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static inline int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg,
				   int count, u16 *buf)
{
	return regmap_bulk_read(wm8994->regmap, reg, buf, count);
}

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static inline int wm8994_bulk_write(struct wm8994 *wm8994, unsigned short reg,
				    int count, const u16 *buf)
{
	return regmap_raw_write(wm8994->regmap, reg, buf, count * sizeof(u16));
}

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static inline int wm8994_set_bits(struct wm8994 *wm8994, unsigned short reg,
		    unsigned short mask, unsigned short val)
{
	return regmap_update_bits(wm8994->regmap, reg, mask, val);
}

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/* Helper to save on boilerplate */


static inline int wm8994_request_irq(struct wm8994 *wm8994, int irq,
				     irq_handler_t handler, const char *name,
				     void *data)
{
	if (!wm8994->irq_data)
		return -EINVAL;
	return request_threaded_irq(regmap_irq_get_virq(wm8994->irq_data, irq),
				    NULL, handler, IRQF_TRIGGER_RISING, name,
				    data);
}
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static inline void wm8994_free_irq(struct wm8994 *wm8994, int irq, void *data)
{
	if (!wm8994->irq_data)
		return;
	free_irq(regmap_irq_get_virq(wm8994->irq_data, irq), data);
}

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int wm8994_irq_init(struct wm8994 *wm8994);
void wm8994_irq_exit(struct wm8994 *wm8994);

#endif
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Directory: include/linux/mfd/wm8994

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