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|
/*
* include/linux/mfd/wm831x/core.h -- Core interface for WM831x
*
* 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_WM831X_CORE_H__
#define __MFD_WM831X_CORE_H__
#include <linux/completion.h>
#include <linux/interrupt.h>
#include <linux/irqdomain.h>
#include <linux/list.h>
#include <linux/regmap.h>
/*
* Register values.
*/
#define WM831X_RESET_ID 0x00
#define WM831X_REVISION 0x01
#define WM831X_PARENT_ID 0x4000
#define WM831X_SYSVDD_CONTROL 0x4001
#define WM831X_THERMAL_MONITORING 0x4002
#define WM831X_POWER_STATE 0x4003
#define WM831X_WATCHDOG 0x4004
#define WM831X_ON_PIN_CONTROL 0x4005
#define WM831X_RESET_CONTROL 0x4006
#define WM831X_CONTROL_INTERFACE 0x4007
#define WM831X_SECURITY_KEY 0x4008
#define WM831X_SOFTWARE_SCRATCH 0x4009
#define WM831X_OTP_CONTROL 0x400A
#define WM831X_GPIO_LEVEL 0x400C
#define WM831X_SYSTEM_STATUS 0x400D
#define WM831X_ON_SOURCE 0x400E
#define WM831X_OFF_SOURCE 0x400F
#define WM831X_SYSTEM_INTERRUPTS 0x4010
#define WM831X_INTERRUPT_STATUS_1 0x4011
#define WM831X_INTERRUPT_STATUS_2 0x4012
#define WM831X_INTERRUPT_STATUS_3 0x4013
#define WM831X_INTERRUPT_STATUS_4 0x4014
#define WM831X_INTERRUPT_STATUS_5 0x4015
#define WM831X_IRQ_CONFIG 0x4017
#define WM831X_SYSTEM_INTERRUPTS_MASK 0x4018
#define WM831X_INTERRUPT_STATUS_1_MASK 0x4019
#define WM831X_INTERRUPT_STATUS_2_MASK 0x401A
#define WM831X_INTERRUPT_STATUS_3_MASK 0x401B
#define WM831X_INTERRUPT_STATUS_4_MASK 0x401C
#define WM831X_INTERRUPT_STATUS_5_MASK 0x401D
#define WM831X_RTC_WRITE_COUNTER 0x4020
#define WM831X_RTC_TIME_1 0x4021
#define WM831X_RTC_TIME_2 0x4022
#define WM831X_RTC_ALARM_1 0x4023
#define WM831X_RTC_ALARM_2 0x4024
#define WM831X_RTC_CONTROL 0x4025
#define WM831X_RTC_TRIM 0x4026
#define WM831X_TOUCH_CONTROL_1 0x4028
#define WM831X_TOUCH_CONTROL_2 0x4029
#define WM831X_TOUCH_DATA_X 0x402A
#define WM831X_TOUCH_DATA_Y 0x402B
#define WM831X_TOUCH_DATA_Z 0x402C
#define WM831X_AUXADC_DATA 0x402D
#define WM831X_AUXADC_CONTROL 0x402E
#define WM831X_AUXADC_SOURCE 0x402F
#define WM831X_COMPARATOR_CONTROL 0x4030
#define WM831X_COMPARATOR_1 0x4031
#define WM831X_COMPARATOR_2 0x4032
#define WM831X_COMPARATOR_3 0x4033
#define WM831X_COMPARATOR_4 0x4034
#define WM831X_GPIO1_CONTROL 0x4038
#define WM831X_GPIO2_CONTROL 0x4039
#define WM831X_GPIO3_CONTROL 0x403A
#define WM831X_GPIO4_CONTROL 0x403B
#define WM831X_GPIO5_CONTROL 0x403C
#define WM831X_GPIO6_CONTROL 0x403D
#define WM831X_GPIO7_CONTROL 0x403E
#define WM831X_GPIO8_CONTROL 0x403F
#define WM831X_GPIO9_CONTROL 0x4040
#define WM831X_GPIO10_CONTROL 0x4041
#define WM831X_GPIO11_CONTROL 0x4042
#define WM831X_GPIO12_CONTROL 0x4043
#define WM831X_GPIO13_CONTROL 0x4044
#define WM831X_GPIO14_CONTROL 0x4045
#define WM831X_GPIO15_CONTROL 0x4046
#define WM831X_GPIO16_CONTROL 0x4047
#define WM831X_CHARGER_CONTROL_1 0x4048
#define WM831X_CHARGER_CONTROL_2 0x4049
#define WM831X_CHARGER_STATUS 0x404A
#define WM831X_BACKUP_CHARGER_CONTROL 0x404B
#define WM831X_STATUS_LED_1 0x404C
#define WM831X_STATUS_LED_2 0x404D
#define WM831X_CURRENT_SINK_1 0x404E
#define WM831X_CURRENT_SINK_2 0x404F
#define WM831X_DCDC_ENABLE 0x4050
#define WM831X_LDO_ENABLE 0x4051
#define WM831X_DCDC_STATUS 0x4052
#define WM831X_LDO_STATUS 0x4053
#define WM831X_DCDC_UV_STATUS 0x4054
#define WM831X_LDO_UV_STATUS 0x4055
#define WM831X_DC1_CONTROL_1 0x4056
#define WM831X_DC1_CONTROL_2 0x4057
#define WM831X_DC1_ON_CONFIG 0x4058
#define WM831X_DC1_SLEEP_CONTROL 0x4059
#define WM831X_DC1_DVS_CONTROL 0x405A
#define WM831X_DC2_CONTROL_1 0x405B
#define WM831X_DC2_CONTROL_2 0x405C
#define WM831X_DC2_ON_CONFIG 0x405D
#define WM831X_DC2_SLEEP_CONTROL 0x405E
#define WM831X_DC2_DVS_CONTROL 0x405F
#define WM831X_DC3_CONTROL_1 0x4060
#define WM831X_DC3_CONTROL_2 0x4061
#define WM831X_DC3_ON_CONFIG 0x4062
#define WM831X_DC3_SLEEP_CONTROL 0x4063
#define WM831X_DC4_CONTROL 0x4064
#define WM831X_DC4_SLEEP_CONTROL 0x4065
#define WM832X_DC4_SLEEP_CONTROL 0x4067
#define WM831X_EPE1_CONTROL 0x4066
#define WM831X_EPE2_CONTROL 0x4067
#define WM831X_LDO1_CONTROL 0x4068
#define WM831X_LDO1_ON_CONTROL 0x4069
#define WM831X_LDO1_SLEEP_CONTROL 0x406A
#define WM831X_LDO2_CONTROL 0x406B
#define WM831X_LDO2_ON_CONTROL 0x406C
#define WM831X_LDO2_SLEEP_CONTROL 0x406D
#define WM831X_LDO3_CONTROL 0x406E
#define WM831X_LDO3_ON_CONTROL 0x406F
#define WM831X_LDO3_SLEEP_CONTROL 0x4070
#define WM831X_LDO4_CONTROL 0x4071
#define WM831X_LDO4_ON_CONTROL 0x4072
#define WM831X_LDO4_SLEEP_CONTROL 0x4073
#define WM831X_LDO5_CONTROL 0x4074
#define WM831X_LDO5_ON_CONTROL 0x4075
#define WM831X_LDO5_SLEEP_CONTROL 0x4076
#define WM831X_LDO6_CONTROL 0x4077
#define WM831X_LDO6_ON_CONTROL 0x4078
#define WM831X_LDO6_SLEEP_CONTROL 0x4079
#define WM831X_LDO7_CONTROL 0x407A
#define WM831X_LDO7_ON_CONTROL 0x407B
#define WM831X_LDO7_SLEEP_CONTROL 0x407C
#define WM831X_LDO8_CONTROL 0x407D
#define WM831X_LDO8_ON_CONTROL 0x407E
#define WM831X_LDO8_SLEEP_CONTROL 0x407F
#define WM831X_LDO9_CONTROL 0x4080
#define WM831X_LDO9_ON_CONTROL 0x4081
#define WM831X_LDO9_SLEEP_CONTROL 0x4082
#define WM831X_LDO10_CONTROL 0x4083
#define WM831X_LDO10_ON_CONTROL 0x4084
#define WM831X_LDO10_SLEEP_CONTROL 0x4085
#define WM831X_LDO11_ON_CONTROL 0x4087
#define WM831X_LDO11_SLEEP_CONTROL 0x4088
#define WM831X_POWER_GOOD_SOURCE_1 0x408E
#define WM831X_POWER_GOOD_SOURCE_2 0x408F
#define WM831X_CLOCK_CONTROL_1 0x4090
#define WM831X_CLOCK_CONTROL_2 0x4091
#define WM831X_FLL_CONTROL_1 0x4092
#define WM831X_FLL_CONTROL_2 0x4093
#define WM831X_FLL_CONTROL_3 0x4094
#define WM831X_FLL_CONTROL_4 0x4095
#define WM831X_FLL_CONTROL_5 0x4096
#define WM831X_UNIQUE_ID_1 0x7800
#define WM831X_UNIQUE_ID_2 0x7801
#define WM831X_UNIQUE_ID_3 0x7802
#define WM831X_UNIQUE_ID_4 0x7803
#define WM831X_UNIQUE_ID_5 0x7804
#define WM831X_UNIQUE_ID_6 0x7805
#define WM831X_UNIQUE_ID_7 0x7806
#define WM831X_UNIQUE_ID_8 0x7807
#define WM831X_FACTORY_OTP_ID 0x7808
#define WM831X_FACTORY_OTP_1 0x7809
#define WM831X_FACTORY_OTP_2 0x780A
#define WM831X_FACTORY_OTP_3 0x780B
#define WM831X_FACTORY_OTP_4 0x780C
#define WM831X_FACTORY_OTP_5 0x780D
#define WM831X_CUSTOMER_OTP_ID 0x7810
#define WM831X_DC1_OTP_CONTROL 0x7811
#define WM831X_DC2_OTP_CONTROL 0x7812
#define WM831X_DC3_OTP_CONTROL 0x7813
#define WM831X_LDO1_2_OTP_CONTROL 0x7814
#define WM831X_LDO3_4_OTP_CONTROL 0x7815
#define WM831X_LDO5_6_OTP_CONTROL 0x7816
#define WM831X_LDO7_8_OTP_CONTROL 0x7817
#define WM831X_LDO9_10_OTP_CONTROL 0x7818
#define WM831X_LDO11_EPE_CONTROL 0x7819
#define WM831X_GPIO1_OTP_CONTROL 0x781A
#define WM831X_GPIO2_OTP_CONTROL 0x781B
#define WM831X_GPIO3_OTP_CONTROL 0x781C
#define WM831X_GPIO4_OTP_CONTROL 0x781D
#define WM831X_GPIO5_OTP_CONTROL 0x781E
#define WM831X_GPIO6_OTP_CONTROL 0x781F
#define WM831X_DBE_CHECK_DATA 0x7827
/*
* R0 (0x00) - Reset ID
*/
#define WM831X_CHIP_ID_MASK 0xFFFF /* CHIP_ID - [15:0] */
#define WM831X_CHIP_ID_SHIFT 0 /* CHIP_ID - [15:0] */
#define WM831X_CHIP_ID_WIDTH 16 /* CHIP_ID - [15:0] */
/*
* R1 (0x01) - Revision
*/
#define WM831X_PARENT_REV_MASK 0xFF00 /* PARENT_REV - [15:8] */
#define WM831X_PARENT_REV_SHIFT 8 /* PARENT_REV - [15:8] */
#define WM831X_PARENT_REV_WIDTH 8 /* PARENT_REV - [15:8] */
#define WM831X_CHILD_REV_MASK 0x00FF /* CHILD_REV - [7:0] */
#define WM831X_CHILD_REV_SHIFT 0 /* CHILD_REV - [7:0] */
#define WM831X_CHILD_REV_WIDTH 8 /* CHILD_REV - [7:0] */
/*
* R16384 (0x4000) - Parent ID
*/
#define WM831X_PARENT_ID_MASK 0xFFFF /* PARENT_ID - [15:0] */
#define WM831X_PARENT_ID_SHIFT 0 /* PARENT_ID - [15:0] */
#define WM831X_PARENT_ID_WIDTH 16 /* PARENT_ID - [15:0] */
/*
* R16389 (0x4005) - ON Pin Control
*/
#define WM831X_ON_PIN_SECACT_MASK 0x0300 /* ON_PIN_SECACT - [9:8] */
#define WM831X_ON_PIN_SECACT_SHIFT 8 /* ON_PIN_SECACT - [9:8] */
#define WM831X_ON_PIN_SECACT_WIDTH 2 /* ON_PIN_SECACT - [9:8] */
#define WM831X_ON_PIN_PRIMACT_MASK 0x0030 /* ON_PIN_PRIMACT - [5:4] */
#define WM831X_ON_PIN_PRIMACT_SHIFT 4 /* ON_PIN_PRIMACT - [5:4] */
#define WM831X_ON_PIN_PRIMACT_WIDTH 2 /* ON_PIN_PRIMACT - [5:4] */
#define WM831X_ON_PIN_STS 0x0008 /* ON_PIN_STS */
#define WM831X_ON_PIN_STS_MASK 0x0008 /* ON_PIN_STS */
#define WM831X_ON_PIN_STS_SHIFT 3 /* ON_PIN_STS */
#define WM831X_ON_PIN_STS_WIDTH 1 /* ON_PIN_STS */
#define WM831X_ON_PIN_TO_MASK 0x0003 /* ON_PIN_TO - [1:0] */
#define WM831X_ON_PIN_TO_SHIFT 0 /* ON_PIN_TO - [1:0] */
#define WM831X_ON_PIN_TO_WIDTH 2 /* ON_PIN_TO - [1:0] */
/*
* R16528 (0x4090) - Clock Control 1
*/
#define WM831X_CLKOUT_ENA 0x8000 /* CLKOUT_ENA */
#define WM831X_CLKOUT_ENA_MASK 0x8000 /* CLKOUT_ENA */
#define WM831X_CLKOUT_ENA_SHIFT 15 /* CLKOUT_ENA */
#define WM831X_CLKOUT_ENA_WIDTH 1 /* CLKOUT_ENA */
#define WM831X_CLKOUT_OD 0x2000 /* CLKOUT_OD */
#define WM831X_CLKOUT_OD_MASK 0x2000 /* CLKOUT_OD */
#define WM831X_CLKOUT_OD_SHIFT 13 /* CLKOUT_OD */
#define WM831X_CLKOUT_OD_WIDTH 1 /* CLKOUT_OD */
#define WM831X_CLKOUT_SLOT_MASK 0x0700 /* CLKOUT_SLOT - [10:8] */
#define WM831X_CLKOUT_SLOT_SHIFT 8 /* CLKOUT_SLOT - [10:8] */
#define WM831X_CLKOUT_SLOT_WIDTH 3 /* CLKOUT_SLOT - [10:8] */
#define WM831X_CLKOUT_SLPSLOT_MASK 0x0070 /* CLKOUT_SLPSLOT - [6:4] */
#define WM831X_CLKOUT_SLPSLOT_SHIFT 4 /* CLKOUT_SLPSLOT - [6:4] */
#define WM831X_CLKOUT_SLPSLOT_WIDTH 3 /* CLKOUT_SLPSLOT - [6:4] */
#define WM831X_CLKOUT_SRC 0x0001 /* CLKOUT_SRC */
#define WM831X_CLKOUT_SRC_MASK 0x0001 /* CLKOUT_SRC */
#define WM831X_CLKOUT_SRC_SHIFT 0 /* CLKOUT_SRC */
#define WM831X_CLKOUT_SRC_WIDTH 1 /* CLKOUT_SRC */
/*
* R16529 (0x4091) - Clock Control 2
*/
#define WM831X_XTAL_INH 0x8000 /* XTAL_INH */
#define WM831X_XTAL_INH_MASK 0x8000 /* XTAL_INH */
#define WM831X_XTAL_INH_SHIFT 15 /* XTAL_INH */
#define WM831X_XTAL_INH_WIDTH 1 /* XTAL_INH */
#define WM831X_XTAL_ENA 0x2000 /* XTAL_ENA */
#define WM831X_XTAL_ENA_MASK 0x2000 /* XTAL_ENA */
#define WM831X_XTAL_ENA_SHIFT 13 /* XTAL_ENA */
#define WM831X_XTAL_ENA_WIDTH 1 /* XTAL_ENA */
#define WM831X_XTAL_BKUPENA 0x1000 /* XTAL_BKUPENA */
#define WM831X_XTAL_BKUPENA_MASK 0x1000 /* XTAL_BKUPENA */
#define WM831X_XTAL_BKUPENA_SHIFT 12 /* XTAL_BKUPENA */
#define WM831X_XTAL_BKUPENA_WIDTH 1 /* XTAL_BKUPENA */
#define WM831X_FLL_AUTO 0x0080 /* FLL_AUTO */
#define WM831X_FLL_AUTO_MASK 0x0080 /* FLL_AUTO */
#define WM831X_FLL_AUTO_SHIFT 7 /* FLL_AUTO */
#define WM831X_FLL_AUTO_WIDTH 1 /* FLL_AUTO */
#define WM831X_FLL_AUTO_FREQ_MASK 0x0007 /* FLL_AUTO_FREQ - [2:0] */
#define WM831X_FLL_AUTO_FREQ_SHIFT 0 /* FLL_AUTO_FREQ - [2:0] */
#define WM831X_FLL_AUTO_FREQ_WIDTH 3 /* FLL_AUTO_FREQ - [2:0] */
/*
* R16530 (0x4092) - FLL Control 1
*/
#define WM831X_FLL_FRAC 0x0004 /* FLL_FRAC */
#define WM831X_FLL_FRAC_MASK 0x0004 /* FLL_FRAC */
#define WM831X_FLL_FRAC_SHIFT 2 /* FLL_FRAC */
#define WM831X_FLL_FRAC_WIDTH 1 /* FLL_FRAC */
#define WM831X_FLL_OSC_ENA 0x0002 /* FLL_OSC_ENA */
#define WM831X_FLL_OSC_ENA_MASK 0x0002 /* FLL_OSC_ENA */
#define WM831X_FLL_OSC_ENA_SHIFT 1 /* FLL_OSC_ENA */
#define WM831X_FLL_OSC_ENA_WIDTH 1 /* FLL_OSC_ENA */
#define WM831X_FLL_ENA 0x0001 /* FLL_ENA */
#define WM831X_FLL_ENA_MASK 0x0001 /* FLL_ENA */
#define WM831X_FLL_ENA_SHIFT 0 /* FLL_ENA */
#define WM831X_FLL_ENA_WIDTH 1 /* FLL_ENA */
/*
* R16531 (0x4093) - FLL Control 2
*/
#define WM831X_FLL_OUTDIV_MASK 0x3F00 /* FLL_OUTDIV - [13:8] */
#define WM831X_FLL_OUTDIV_SHIFT 8 /* FLL_OUTDIV - [13:8] */
#define WM831X_FLL_OUTDIV_WIDTH 6 /* FLL_OUTDIV - [13:8] */
#define WM831X_FLL_CTRL_RATE_MASK 0x0070 /* FLL_CTRL_RATE - [6:4] */
#define WM831X_FLL_CTRL_RATE_SHIFT 4 /* FLL_CTRL_RATE - [6:4] */
#define WM831X_FLL_CTRL_RATE_WIDTH 3 /* FLL_CTRL_RATE - [6:4] */
#define WM831X_FLL_FRATIO_MASK 0x0007 /* FLL_FRATIO - [2:0] */
#define WM831X_FLL_FRATIO_SHIFT 0 /* FLL_FRATIO - [2:0] */
#define WM831X_FLL_FRATIO_WIDTH 3 /* FLL_FRATIO - [2:0] */
/*
* R16532 (0x4094) - FLL Control 3
*/
#define WM831X_FLL_K_MASK 0xFFFF /* FLL_K - [15:0] */
#define WM831X_FLL_K_SHIFT 0 /* FLL_K - [15:0] */
#define WM831X_FLL_K_WIDTH 16 /* FLL_K - [15:0] */
/*
* R16533 (0x4095) - FLL Control 4
*/
#define WM831X_FLL_N_MASK 0x7FE0 /* FLL_N - [14:5] */
#define WM831X_FLL_N_SHIFT 5 /* FLL_N - [14:5] */
#define WM831X_FLL_N_WIDTH 10 /* FLL_N - [14:5] */
#define WM831X_FLL_GAIN_MASK 0x000F /* FLL_GAIN - [3:0] */
#define WM831X_FLL_GAIN_SHIFT 0 /* FLL_GAIN - [3:0] */
#define WM831X_FLL_GAIN_WIDTH 4 /* FLL_GAIN - [3:0] */
/*
* R16534 (0x4096) - FLL Control 5
*/
#define WM831X_FLL_CLK_REF_DIV_MASK 0x0018 /* FLL_CLK_REF_DIV - [4:3] */
#define WM831X_FLL_CLK_REF_DIV_SHIFT 3 /* FLL_CLK_REF_DIV - [4:3] */
#define WM831X_FLL_CLK_REF_DIV_WIDTH 2 /* FLL_CLK_REF_DIV - [4:3] */
#define WM831X_FLL_CLK_SRC_MASK 0x0003 /* FLL_CLK_SRC - [1:0] */
#define WM831X_FLL_CLK_SRC_SHIFT 0 /* FLL_CLK_SRC - [1:0] */
#define WM831X_FLL_CLK_SRC_WIDTH 2 /* FLL_CLK_SRC - [1:0] */
struct regulator_dev;
struct irq_domain;
#define WM831X_NUM_IRQ_REGS 5
#define WM831X_NUM_GPIO_REGS 16
enum wm831x_parent {
WM8310 = 0x8310,
WM8311 = 0x8311,
WM8312 = 0x8312,
WM8320 = 0x8320,
WM8321 = 0x8321,
WM8325 = 0x8325,
WM8326 = 0x8326,
};
struct wm831x;
enum wm831x_auxadc;
typedef int (*wm831x_auxadc_read_fn)(struct wm831x *wm831x,
enum wm831x_auxadc input);
struct wm831x {
struct mutex io_lock;
struct device *dev;
struct regmap *regmap;
int irq; /* Our chip IRQ */
struct mutex irq_lock;
struct irq_domain *irq_domain;
int irq_masks_cur[WM831X_NUM_IRQ_REGS]; /* Currently active value */
int irq_masks_cache[WM831X_NUM_IRQ_REGS]; /* Cached hardware value */
bool soft_shutdown;
/* Chip revision based flags */
unsigned has_gpio_ena:1; /* Has GPIO enable bit */
unsigned has_cs_sts:1; /* Has current sink status bit */
unsigned charger_irq_wake:1; /* Are charger IRQs a wake source? */
int num_gpio;
/* Used by the interrupt controller code to post writes */
int gpio_update[WM831X_NUM_GPIO_REGS];
bool gpio_level_high[WM831X_NUM_GPIO_REGS];
bool gpio_level_low[WM831X_NUM_GPIO_REGS];
struct mutex auxadc_lock;
struct list_head auxadc_pending;
u16 auxadc_active;
wm831x_auxadc_read_fn auxadc_read;
/* The WM831x has a security key blocking access to certain
* registers. The mutex is taken by the accessors for locking
* and unlocking the security key, locked is used to fail
* writes if the lock is held.
*/
struct mutex key_lock;
unsigned int locked:1;
};
/* Device I/O API */
int wm831x_reg_read(struct wm831x *wm831x, unsigned short reg);
int wm831x_reg_write(struct wm831x *wm831x, unsigned short reg,
unsigned short val);
void wm831x_reg_lock(struct wm831x *wm831x);
int wm831x_reg_unlock(struct wm831x *wm831x);
int wm831x_set_bits(struct wm831x *wm831x, unsigned short reg,
unsigned short mask, unsigned short val);
int wm831x_bulk_read(struct wm831x *wm831x, unsigned short reg,
int count, u16 *buf);
int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq);
void wm831x_device_exit(struct wm831x *wm831x);
int wm831x_device_suspend(struct wm831x *wm831x);
void wm831x_device_shutdown(struct wm831x *wm831x);
int wm831x_irq_init(struct wm831x *wm831x, int irq);
void wm831x_irq_exit(struct wm831x *wm831x);
void wm831x_auxadc_init(struct wm831x *wm831x);
static inline int wm831x_irq(struct wm831x *wm831x, int irq)
{
return irq_create_mapping(wm831x->irq_domain, irq);
}
extern struct regmap_config wm831x_regmap_config;
#endif
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