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mfd: Add MAX8998 interrupts support

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Use genirq and provide seperated file for interrupts support.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Joonyoung Shim
2010-09-10 18:36:39 +02:00
committed by Samuel Ortiz
parent 676e02d7a2
commit 2c7e6f5797
6 changed files with 358 additions and 9 deletions
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72
include/linux/mfd/max8998-private.h
View File

@@ -1,5 +1,5 @@
/*
* max8698.h - Voltage regulator driver for the Maxim 8998
* max8998.h - Voltage regulator driver for the Maxim 8998
*
* Copyright (C) 2009-2010 Samsung Electrnoics
* Kyungmin Park <kyungmin.park@samsung.com>
@@ -23,6 +23,8 @@
#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,
@@ -72,20 +74,86 @@ enum {
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,
};
#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)
/**
* struct max8998_dev - max8998 master device for sub-drivers
* @dev: master device of the chip (can be used to access platform data)
* @i2c: i2c client private data
* @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
*/
struct max8998_dev {
struct device *dev;
struct i2c_client *i2c;
struct mutex iolock;
struct mutex irqlock;
int irq_base;
int irq;
int ono;
u8 irq_masks_cur[MAX8998_NUM_IRQ_REGS];
u8 irq_masks_cache[MAX8998_NUM_IRQ_REGS];
};
int max8998_irq_init(struct max8998_dev *max8998);
void max8998_irq_exit(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_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask);

11
include/linux/mfd/max8998.h
View File

@@ -1,5 +1,5 @@
/*
* max8698.h - Voltage regulator driver for the Maxim 8998
* max8998.h - Voltage regulator driver for the Maxim 8998
*
* Copyright (C) 2009-2010 Samsung Electrnoics
* Kyungmin Park <kyungmin.park@samsung.com>
@@ -66,13 +66,16 @@ struct max8998_regulator_data {
/**
* struct max8998_board - packages regulator init data
* @num_regulators: number of regultors used
* @regulators: array of defined regulators
* @num_regulators: number of regultors used
* @irq_base: base IRQ number for max8998, required for IRQs
* @ono: power onoff IRQ number for max8998
*/
struct max8998_platform_data {
int num_regulators;
struct max8998_regulator_data *regulators;
int num_regulators;
int irq_base;
int ono;
};
#endif /* __LINUX_MFD_MAX8998_H */