/*
* Maxim8925 Interface
*
* Copyright (C) 2009 Marvell International Ltd.
* Haojian Zhuang <haojian.zhuang@marvell.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __LINUX_MFD_MAX8925_H
#define __LINUX_MFD_MAX8925_H
#include <linux/mutex.h>
#include <linux/interrupt.h>
/* Unified sub device IDs for MAX8925 */
enum {
MAX8925_ID_SD1,
MAX8925_ID_SD2,
MAX8925_ID_SD3,
MAX8925_ID_LDO1,
MAX8925_ID_LDO2,
MAX8925_ID_LDO3,
MAX8925_ID_LDO4,
MAX8925_ID_LDO5,
MAX8925_ID_LDO6,
MAX8925_ID_LDO7,
MAX8925_ID_LDO8,
MAX8925_ID_LDO9,
MAX8925_ID_LDO10,
MAX8925_ID_LDO11,
MAX8925_ID_LDO12,
MAX8925_ID_LDO13,
MAX8925_ID_LDO14,
MAX8925_ID_LDO15,
MAX8925_ID_LDO16,
MAX8925_ID_LDO17,
MAX8925_ID_LDO18,
MAX8925_ID_LDO19,
MAX8925_ID_LDO20,
MAX8925_ID_MAX,
};
enum {
/*
* Charging current threshold trigger going from fast charge
* to TOPOFF charge. From 5% to 20% of fasting charging current.
*/
MAX8925_TOPOFF_THR_5PER,
MAX8925_TOPOFF_THR_10PER,
MAX8925_TOPOFF_THR_15PER,
MAX8925_TOPOFF_THR_20PER,
};
enum {
/* Fast charging current */
MAX8925_FCHG_85MA,
MAX8925_FCHG_300MA,
MAX8925_FCHG_460MA,
MAX8925_FCHG_600MA,
MAX8925_FCHG_700MA,
MAX8925_FCHG_800MA,
MAX8925_FCHG_900MA,
MAX8925_FCHG_1000MA,
};
/* Charger registers */
#define MAX8925_CHG_IRQ1 (0x7e)
#define MAX8925_CHG_IRQ2 (0x7f)
#define MAX8925_CHG_IRQ1_MASK (0x80)
#define MAX8925_CHG_IRQ2_MASK (0x81)
#define MAX8925_CHG_STATUS (0x82)
/* GPM registers */
#define MAX8925_SYSENSEL (0x00)
#define MAX8925_ON_OFF_IRQ1 (0x01)
#define MAX8925_ON_OFF_IRQ1_MASK (0x02)
#define MAX8925_ON_OFF_STATUS (0x03)
#define MAX8925_ON_OFF_IRQ2 (0x0d)
#define MAX8925_ON_OFF_IRQ2_MASK (0x0e)
#define MAX8925_RESET_CNFG (0x0f)
/* Touch registers */
#define MAX8925_TSC_IRQ (0x00)
#define MAX8925_TSC_IRQ_MASK (0x01)
#define MAX8925_TSC_CNFG1 (0x02)
#define MAX8925_ADC_SCHED (0x10)
#define MAX8925_ADC_RES_END (0x6f)
#define MAX8925_NREF_OK (1 << 4)
/* RTC registers */
#define MAX8925_ALARM0_CNTL (0x18)
#define MAX8925_ALARM1_CNTL (0x19)
#define MAX8925_RTC_IRQ (0x1c)
#define MAX8925_RTC_IRQ_MASK (0x1d)
#define MAX8925_MPL_CNTL (0x1e)
/* WLED registers */
#define MAX8925_WLED_MODE_CNTL (0x84)
#define MAX8925_WLED_CNTL (0x85)
/* MAX8925 Registers */
#define MAX8925_SDCTL1 (0x04)
#define MAX8925_SDCTL2 (0x07)
#define MAX8925_SDCTL3 (0x0A)
#define MAX8925_SDV1 (0x06)
#define MAX8925_SDV2 (0x09)
#define MAX8925_SDV3 (0x0C)
#define MAX8925_LDOCTL1 (0x18)
#define MAX8925_LDOCTL2 (0x1C)
#define MAX8925_LDOCTL3 (0x20)
#define MAX8925_LDOCTL4 (0x24)
#define MAX8925_LDOCTL5 (0x28)
#define MAX8925_LDOCTL6 (0x2C)
#define MAX8925_LDOCTL7 (0x30)
#define MAX8925_LDOCTL8 (0x34)
#define MAX8925_LDOCTL9 (0x38)
#define MAX8925_LDOCTL10 (0x3C)
#define MAX8925_LDOCTL11 (0x40)
#define MAX8925_LDOCTL12 (0x44)
#define MAX8925_LDOCTL13 (0x48)
#define MAX8925_LDOCTL14 (0x4C)
#define MAX8925_LDOCTL15 (0x50)
#define MAX8925_LDOCTL16 (0x10)
#define MAX8925_LDOCTL17 (0x14)
#define MAX8925_LDOCTL18 (0x72)
#define MAX8925_LDOCTL19 (0x5C)
#define MAX8925_LDOCTL20 (0x9C)
#define MAX8925_LDOVOUT1 (0x1A)
#define MAX8925_LDOVOUT2 (0x1E)
#define MAX8925_LDOVOUT3 (0x22)
#define MAX8925_LDOVOUT4 (0x26)
#define MAX8925_LDOVOUT5 (0x2A)
#define MAX8925_LDOVOUT6 (0x2E)
#define MAX8925_LDOVOUT7 (0x32)
#define MAX8925_LDOVOUT8 (0x36)
#define MAX8925_LDOVOUT9 (0x3A)
#define MAX8925_LDOVOUT10 (0x3E)
#define MAX8925_LDOVOUT11 (0x42)
#define MAX8925_LDOVOUT12 (0x46)
#define MAX8925_LDOVOUT13 (0x4A)
#define MAX8925_LDOVOUT14 (0x4E)
#define MAX8925_LDOVOUT15 (0x52)
#define MAX8925_LDOVOUT16 (0x12)
#define MAX8925_LDOVOUT17 (0x16)
#define MAX8925_LDOVOUT18 (0x74)
#define MAX8925_LDOVOUT19 (0x5E)
#define MAX8925_LDOVOUT20 (0x9E)
/* bit definitions */
#define CHG_IRQ1_MASK (0x07)
#define CHG_IRQ2_MASK (0xff)
#define ON_OFF_IRQ1_MASK (0xff)
#define ON_OFF_IRQ2_MASK (0x03)
#define TSC_IRQ_MASK (0x03)
#define RTC_IRQ_MASK (0x0c)
#define MAX8925_MAX_REGULATOR (23)
#define MAX8925_NAME_SIZE (32)
/* IRQ definitions */
enum {
MAX8925_IRQ_VCHG_DC_OVP,
MAX8925_IRQ_VCHG_DC_F,
MAX8925_IRQ_VCHG_DC_R,
MAX8925_IRQ_VCHG_USB_OVP,
MAX8925_IRQ_VCHG_USB_F,
MAX8925_IRQ_VCHG_USB_R,
MAX8925_IRQ_VCHG_THM_OK_R,
MAX8925_IRQ_VCHG_THM_OK_F,
MAX8925_IRQ_VCHG_SYSLOW_F,
MAX8925_IRQ_VCHG_SYSLOW_R,
MAX8925_IRQ_VCHG_RST,
MAX8925_IRQ_VCHG_DONE,
MAX8925_IRQ_VCHG_TOPOFF,
MAX8925_IRQ_VCHG_TMR_FAULT,
MAX8925_IRQ_GPM_RSTIN,
MAX8925_IRQ_GPM_MPL,
MAX8925_IRQ_GPM_SW_3SEC,
MAX8925_IRQ_GPM_EXTON_F,
MAX8925_IRQ_GPM_EXTON_R,
MAX8925_IRQ_GPM_SW_1SEC,
MAX8925_IRQ_GPM_SW_F,
MAX8925_IRQ_GPM_SW_R,
MAX8925_IRQ_GPM_SYSCKEN_F,
MAX8925_IRQ_GPM_SYSCKEN_R,
MAX8925_IRQ_RTC_ALARM1,
MAX8925_IRQ_RTC_ALARM0,
MAX8925_IRQ_TSC_STICK,
MAX8925_IRQ_TSC_NSTICK,
MAX8925_NR_IRQS,
};
struct max8925_chip {
struct device *dev;
struct i2c_client *i2c;
struct i2c_client *adc;
struct i2c_client *rtc;
struct mutex io_lock;
struct mutex irq_lock;
int irq_base;
int core_irq;
int tsc_irq;
};
struct max8925_backlight_pdata {
int lxw_scl; /* 0/1 -- 0.8Ohm/0.4Ohm */
int lxw_freq; /* 700KHz ~ 1400KHz */
int dual_string; /* 0/1 -- single/dual string */
};
struct max8925_touch_pdata {
unsigned int flags;
};
struct max8925_power_pdata {
int (*set_charger)(int);
unsigned batt_detect:1;
unsigned topoff_threshold:2;
unsigned fast_charge:3; /* charge current */
};
/*
* irq_base: stores IRQ base number of MAX8925 in platform
* tsc_irq: stores IRQ number of MAX8925 TSC
*/
struct max8925_platform_data {
struct max8925_backlight_pdata *backlight;
struct max8925_touch_pdata *touch;
struct max8925_power_pdata *power;
struct regulator_init_data *regulator[MAX8925_MAX_REGULATOR];
int irq_base;
int tsc_irq;
};
extern int max8925_reg_read(struct i2c_client *, int);
extern int max8925_reg_write(struct i2c_client *, int, unsigned char);
extern int max8925_bulk_read(struct i2c_client *, int, int, unsigned char *);
extern int max8925_bulk_write(struct i2c_client *, int, int, unsigned char *);
extern int max8925_set_bits(struct i2c_client *, int, unsigned char,
unsigned char);
extern int max8925_device_init(struct max8925_chip *,
struct max8925_platform_data *);
extern void max8925_device_exit(struct max8925_chip *);
#endif /* __LINUX_MFD_MAX8925_H */
