146 lines
3.4 KiB
C
146 lines
3.4 KiB
C
/*
|
|
* 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;
|
|
}
|
|
|
|
static inline int wm8994_reg_write(struct wm8994 *wm8994, unsigned short reg,
|
|
unsigned short val)
|
|
{
|
|
return regmap_write(wm8994->regmap, reg, val);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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));
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
/* 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);
|
|
}
|
|
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);
|
|
}
|
|
|
|
int wm8994_irq_init(struct wm8994 *wm8994);
|
|
void wm8994_irq_exit(struct wm8994 *wm8994);
|
|
|
|
#endif
|