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mfd: Add irq support in 88pm860x

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88PM860x is a complex PMIC device. It contains touch, charger, sound, rtc,
backlight, led, and so on.

Host communicates to 88PM860x by I2C bus. Use thread irq to support this
usage case.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Haojian Zhuang
2009-12-15 16:01:47 -05:00
committed by Samuel Ortiz
parent 2cc50bee99
commit 5c42e8c4a9
2 changed files with 247 additions and 33 deletions
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54
include/linux/mfd/88pm860x.h
View File

@@ -12,6 +12,8 @@
#ifndef __LINUX_MFD_88PM860X_H
#define __LINUX_MFD_88PM860X_H
#include <linux/interrupt.h>
enum {
CHIP_INVALID = 0,
CHIP_PM8606,
@@ -109,33 +111,10 @@ enum {
/* Misc Registers */
#define PM8607_CHIP_ID (0x00)
#define PM8607_B0_MISC1 (0x0C)
#define PM8607_LDO1 (0x10)
#define PM8607_DVC3 (0x26)
#define PM8607_MISC1 (0x40)
/* bit definitions for PM8607 events */
#define PM8607_EVENT_ONKEY (1 << 0)
#define PM8607_EVENT_EXTON (1 << 1)
#define PM8607_EVENT_CHG (1 << 2)
#define PM8607_EVENT_BAT (1 << 3)
#define PM8607_EVENT_RTC (1 << 4)
#define PM8607_EVENT_CC (1 << 5)
#define PM8607_EVENT_VBAT (1 << 8)
#define PM8607_EVENT_VCHG (1 << 9)
#define PM8607_EVENT_VSYS (1 << 10)
#define PM8607_EVENT_TINT (1 << 11)
#define PM8607_EVENT_GPADC0 (1 << 12)
#define PM8607_EVENT_GPADC1 (1 << 13)
#define PM8607_EVENT_GPADC2 (1 << 14)
#define PM8607_EVENT_GPADC3 (1 << 15)
#define PM8607_EVENT_AUDIO_SHORT (1 << 16)
#define PM8607_EVENT_PEN (1 << 17)
#define PM8607_EVENT_HEADSET (1 << 18)
#define PM8607_EVENT_HOOK (1 << 19)
#define PM8607_EVENT_MICIN (1 << 20)
#define PM8607_EVENT_CHG_TIMEOUT (1 << 21)
#define PM8607_EVENT_CHG_DONE (1 << 22)
#define PM8607_EVENT_CHG_FAULT (1 << 23)
#define PM8607_A1_MISC1 (0x40)
/* bit definitions of Status Query Interface */
#define PM8607_STATUS_CC (1 << 3)
@@ -154,7 +133,12 @@ enum {
#define PM8607_BUCK3_DOUBLE (1 << 6)
/* bit definitions of Misc1 */
#define PM8607_MISC1_PI2C (1 << 0)
#define PM8607_A1_MISC1_PI2C (1 << 0)
#define PM8607_B0_MISC1_INV_INT (1 << 0)
#define PM8607_B0_MISC1_INT_CLEAR (1 << 1)
#define PM8607_B0_MISC1_INT_MASK (1 << 2)
#define PM8607_B0_MISC1_PI2C (1 << 3)
#define PM8607_B0_MISC1_RESET (1 << 6)
/* Interrupt Number in 88PM8607 */
enum {
@@ -187,15 +171,26 @@ enum {
PM8607_CHIP_B0 = 0x48,
};
#define PM860X_NUM_IRQ 24
struct pm860x_irq {
irq_handler_t handler;
void *data;
};
struct pm860x_chip {
struct device *dev;
struct mutex io_lock;
struct mutex irq_lock;
struct i2c_client *client;
struct i2c_client *companion; /* companion chip client */
struct pm860x_irq irq[PM860X_NUM_IRQ];
int buck3_double; /* DVC ramp slope double */
unsigned short companion_addr;
int id;
int irq_mode;
int chip_irq;
unsigned char chip_version;
};
@@ -210,6 +205,7 @@ enum {
struct pm860x_platform_data {
unsigned short companion_addr; /* I2C address of companion chip */
int i2c_port; /* Controlled by GI2C or PI2C */
int irq_mode; /* Clear interrupt by read/write(0/1) */
struct regulator_init_data *regulator[PM8607_MAX_REGULATOR];
};
@@ -220,6 +216,12 @@ extern int pm860x_bulk_write(struct i2c_client *, int, int, unsigned char *);
extern int pm860x_set_bits(struct i2c_client *, int, unsigned char,
unsigned char);
extern int pm860x_mask_irq(struct pm860x_chip *, int);
extern int pm860x_unmask_irq(struct pm860x_chip *, int);
extern int pm860x_request_irq(struct pm860x_chip *, int,
irq_handler_t handler, void *);
extern int pm860x_free_irq(struct pm860x_chip *, int);
extern int pm860x_device_init(struct pm860x_chip *chip,
struct pm860x_platform_data *pdata);
extern void pm860x_device_exit(struct pm860x_chip *chip);