max8998-private.h
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/*
* max8998-private.h - Voltage regulator driver for the Maxim 8998
*
* Copyright (C) 2009-2010 Samsung Electrnoics
* Kyungmin Park <kyungmin.park@samsung.com>
* Marek Szyprowski <m.szyprowski@samsung.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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __LINUX_MFD_MAX8998_PRIV_H
#define __LINUX_MFD_MAX8998_PRIV_H
#define MAX8998_NUM_IRQ_REGS 4
/* MAX 8998 registers */
enum {
MAX8998_REG_IRQ1,
MAX8998_REG_IRQ2,
MAX8998_REG_IRQ3,
MAX8998_REG_IRQ4,
MAX8998_REG_IRQM1,
MAX8998_REG_IRQM2,
MAX8998_REG_IRQM3,
MAX8998_REG_IRQM4,
MAX8998_REG_STATUS1,
MAX8998_REG_STATUS2,
MAX8998_REG_STATUSM1,
MAX8998_REG_STATUSM2,
MAX8998_REG_CHGR1,
MAX8998_REG_CHGR2,
MAX8998_REG_LDO_ACTIVE_DISCHARGE1,
MAX8998_REG_LDO_ACTIVE_DISCHARGE2,
MAX8998_REG_BUCK_ACTIVE_DISCHARGE3,
MAX8998_REG_ONOFF1,
MAX8998_REG_ONOFF2,
MAX8998_REG_ONOFF3,
MAX8998_REG_ONOFF4,
MAX8998_REG_BUCK1_VOLTAGE1,
MAX8998_REG_BUCK1_VOLTAGE2,
MAX8998_REG_BUCK1_VOLTAGE3,
MAX8998_REG_BUCK1_VOLTAGE4,
MAX8998_REG_BUCK2_VOLTAGE1,
MAX8998_REG_BUCK2_VOLTAGE2,
MAX8998_REG_BUCK3,
MAX8998_REG_BUCK4,
MAX8998_REG_LDO2_LDO3,
MAX8998_REG_LDO4,
MAX8998_REG_LDO5,
MAX8998_REG_LDO6,
MAX8998_REG_LDO7,
MAX8998_REG_LDO8_LDO9,
MAX8998_REG_LDO10_LDO11,
MAX8998_REG_LDO12,
MAX8998_REG_LDO13,
MAX8998_REG_LDO14,
MAX8998_REG_LDO15,
MAX8998_REG_LDO16,
MAX8998_REG_LDO17,
MAX8998_REG_BKCHR,
MAX8998_REG_LBCNFG1,
MAX8998_REG_LBCNFG2,
};
/* IRQ definitions */
enum {
MAX8998_IRQ_DCINF,
MAX8998_IRQ_DCINR,
MAX8998_IRQ_JIGF,
MAX8998_IRQ_JIGR,
MAX8998_IRQ_PWRONF,
MAX8998_IRQ_PWRONR,
MAX8998_IRQ_WTSREVNT,
MAX8998_IRQ_SMPLEVNT,
MAX8998_IRQ_ALARM1,
MAX8998_IRQ_ALARM0,
MAX8998_IRQ_ONKEY1S,
MAX8998_IRQ_TOPOFFR,
MAX8998_IRQ_DCINOVPR,
MAX8998_IRQ_CHGRSTF,
MAX8998_IRQ_DONER,
MAX8998_IRQ_CHGFAULT,
MAX8998_IRQ_LOBAT1,
MAX8998_IRQ_LOBAT2,
MAX8998_IRQ_NR,
};
/* MAX8998 various variants */
enum {
TYPE_MAX8998 = 0, /* Default */
TYPE_LP3974, /* National version of MAX8998 */
TYPE_LP3979, /* Added AVS */
};
#define MAX8998_IRQ_DCINF_MASK (1 << 2)
#define MAX8998_IRQ_DCINR_MASK (1 << 3)
#define MAX8998_IRQ_JIGF_MASK (1 << 4)
#define MAX8998_IRQ_JIGR_MASK (1 << 5)
#define MAX8998_IRQ_PWRONF_MASK (1 << 6)
#define MAX8998_IRQ_PWRONR_MASK (1 << 7)
#define MAX8998_IRQ_WTSREVNT_MASK (1 << 0)
#define MAX8998_IRQ_SMPLEVNT_MASK (1 << 1)
#define MAX8998_IRQ_ALARM1_MASK (1 << 2)
#define MAX8998_IRQ_ALARM0_MASK (1 << 3)
#define MAX8998_IRQ_ONKEY1S_MASK (1 << 0)
#define MAX8998_IRQ_TOPOFFR_MASK (1 << 2)
#define MAX8998_IRQ_DCINOVPR_MASK (1 << 3)
#define MAX8998_IRQ_CHGRSTF_MASK (1 << 4)
#define MAX8998_IRQ_DONER_MASK (1 << 5)
#define MAX8998_IRQ_CHGFAULT_MASK (1 << 7)
#define MAX8998_IRQ_LOBAT1_MASK (1 << 0)
#define MAX8998_IRQ_LOBAT2_MASK (1 << 1)
#define MAX8998_ENRAMP (1 << 4)
struct irq_domain;
/**
* struct max8998_dev - max8998 master device for sub-drivers
* @dev: master device of the chip (can be used to access platform data)
* @pdata: platform data for the driver and subdrivers
* @i2c: i2c client private data for regulator
* @rtc: i2c client private data for rtc
* @iolock: mutex for serializing io access
* @irqlock: mutex for buslock
* @irq_base: base IRQ number for max8998, required for IRQs
* @irq: generic IRQ number for max8998
* @ono: power onoff IRQ number for max8998
* @irq_masks_cur: currently active value
* @irq_masks_cache: cached hardware value
* @type: indicate which max8998 "variant" is used
*/
struct max8998_dev {
struct device *dev;
struct max8998_platform_data *pdata;
struct i2c_client *i2c;
struct i2c_client *rtc;
struct mutex iolock;
struct mutex irqlock;
unsigned int irq_base;
struct irq_domain *irq_domain;
int irq;
int ono;
u8 irq_masks_cur[MAX8998_NUM_IRQ_REGS];
u8 irq_masks_cache[MAX8998_NUM_IRQ_REGS];
unsigned long type;
bool wakeup;
};
int max8998_irq_init(struct max8998_dev *max8998);
void max8998_irq_exit(struct max8998_dev *max8998);
int max8998_irq_resume(struct max8998_dev *max8998);
extern int max8998_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest);
extern int max8998_bulk_read(struct i2c_client *i2c, u8 reg, int count,
u8 *buf);
extern int max8998_write_reg(struct i2c_client *i2c, u8 reg, u8 value);
extern int max8998_bulk_write(struct i2c_client *i2c, u8 reg, int count,
u8 *buf);
extern int max8998_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask);
#endif /* __LINUX_MFD_MAX8998_PRIV_H */