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linux/drivers/mfd/wm831x-core.c
Zhen Lei 3da286aa4a mfd: wm831x: Use DEFINE_RES_IRQ_NAMED() and DEFINE_RES_IRQ() to simplify code 
No functional change.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-06-15 12:53:38 +01:00

1763 lines
40 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* wm831x-core.c -- Device access for Wolfson WM831x PMICs
*
* Copyright 2009 Wolfson Microelectronics PLC.
*
* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/export.h>
#include <linux/bcd.h>
#include <linux/delay.h>
#include <linux/mfd/core.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/mfd/wm831x/core.h>
#include <linux/mfd/wm831x/pdata.h>
#include <linux/mfd/wm831x/irq.h>
#include <linux/mfd/wm831x/auxadc.h>
#include <linux/mfd/wm831x/otp.h>
#include <linux/mfd/wm831x/pmu.h>
#include <linux/mfd/wm831x/regulator.h>
/* Current settings - values are 2*2^(reg_val/4) microamps. These are
* exported since they are used by multiple drivers.
*/
const unsigned int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1] = {
2,
2,
3,
3,
4,
5,
6,
7,
8,
10,
11,
13,
16,
19,
23,
27,
32,
38,
45,
54,
64,
76,
91,
108,
128,
152,
181,
215,
256,
304,
362,
431,
512,
609,
724,
861,
1024,
1218,
1448,
1722,
2048,
2435,
2896,
3444,
4096,
4871,
5793,
6889,
8192,
9742,
11585,
13777,
16384,
19484,
23170,
27554,
};
EXPORT_SYMBOL_GPL(wm831x_isinkv_values);
static int wm831x_reg_locked(struct wm831x *wm831x, unsigned short reg)
{
if (!wm831x->locked)
return 0;
switch (reg) {
case WM831X_WATCHDOG:
case WM831X_DC4_CONTROL:
case WM831X_ON_PIN_CONTROL:
case WM831X_BACKUP_CHARGER_CONTROL:
case WM831X_CHARGER_CONTROL_1:
case WM831X_CHARGER_CONTROL_2:
return 1;
default:
return 0;
}
}
/**
* wm831x_reg_lock: Unlock user keyed registers
*
* The WM831x has a user key preventing writes to particularly
* critical registers. This function locks those registers,
* allowing writes to them.
*
* @wm831x: pointer to local driver data structure
*/
void wm831x_reg_lock(struct wm831x *wm831x)
{
int ret;
ret = wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0);
if (ret == 0) {
dev_vdbg(wm831x->dev, "Registers locked\n");
mutex_lock(&wm831x->io_lock);
WARN_ON(wm831x->locked);
wm831x->locked = 1;
mutex_unlock(&wm831x->io_lock);
} else {
dev_err(wm831x->dev, "Failed to lock registers: %d\n", ret);
}
}
EXPORT_SYMBOL_GPL(wm831x_reg_lock);
/**
* wm831x_reg_unlock: Unlock user keyed registers
*
* The WM831x has a user key preventing writes to particularly
* critical registers. This function locks those registers,
* preventing spurious writes.
*
* @wm831x: pointer to local driver data structure
*/
int wm831x_reg_unlock(struct wm831x *wm831x)
{
int ret;
/* 0x9716 is the value required to unlock the registers */
ret = wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0x9716);
if (ret == 0) {
dev_vdbg(wm831x->dev, "Registers unlocked\n");
mutex_lock(&wm831x->io_lock);
WARN_ON(!wm831x->locked);
wm831x->locked = 0;
mutex_unlock(&wm831x->io_lock);
}
return ret;
}
EXPORT_SYMBOL_GPL(wm831x_reg_unlock);
static bool wm831x_reg_readable(struct device *dev, unsigned int reg)
{
switch (reg) {
case WM831X_RESET_ID:
case WM831X_REVISION:
case WM831X_PARENT_ID:
case WM831X_SYSVDD_CONTROL:
case WM831X_THERMAL_MONITORING:
case WM831X_POWER_STATE:
case WM831X_WATCHDOG:
case WM831X_ON_PIN_CONTROL:
case WM831X_RESET_CONTROL:
case WM831X_CONTROL_INTERFACE:
case WM831X_SECURITY_KEY:
case WM831X_SOFTWARE_SCRATCH:
case WM831X_OTP_CONTROL:
case WM831X_GPIO_LEVEL:
case WM831X_SYSTEM_STATUS:
case WM831X_ON_SOURCE:
case WM831X_OFF_SOURCE:
case WM831X_SYSTEM_INTERRUPTS:
case WM831X_INTERRUPT_STATUS_1:
case WM831X_INTERRUPT_STATUS_2:
case WM831X_INTERRUPT_STATUS_3:
case WM831X_INTERRUPT_STATUS_4:
case WM831X_INTERRUPT_STATUS_5:
case WM831X_IRQ_CONFIG:
case WM831X_SYSTEM_INTERRUPTS_MASK:
case WM831X_INTERRUPT_STATUS_1_MASK:
case WM831X_INTERRUPT_STATUS_2_MASK:
case WM831X_INTERRUPT_STATUS_3_MASK:
case WM831X_INTERRUPT_STATUS_4_MASK:
case WM831X_INTERRUPT_STATUS_5_MASK:
case WM831X_RTC_WRITE_COUNTER:
case WM831X_RTC_TIME_1:
case WM831X_RTC_TIME_2:
case WM831X_RTC_ALARM_1:
case WM831X_RTC_ALARM_2:
case WM831X_RTC_CONTROL:
case WM831X_RTC_TRIM:
case WM831X_TOUCH_CONTROL_1:
case WM831X_TOUCH_CONTROL_2:
case WM831X_TOUCH_DATA_X:
case WM831X_TOUCH_DATA_Y:
case WM831X_TOUCH_DATA_Z:
case WM831X_AUXADC_DATA:
case WM831X_AUXADC_CONTROL:
case WM831X_AUXADC_SOURCE:
case WM831X_COMPARATOR_CONTROL:
case WM831X_COMPARATOR_1:
case WM831X_COMPARATOR_2:
case WM831X_COMPARATOR_3:
case WM831X_COMPARATOR_4:
case WM831X_GPIO1_CONTROL:
case WM831X_GPIO2_CONTROL:
case WM831X_GPIO3_CONTROL:
case WM831X_GPIO4_CONTROL:
case WM831X_GPIO5_CONTROL:
case WM831X_GPIO6_CONTROL:
case WM831X_GPIO7_CONTROL:
case WM831X_GPIO8_CONTROL:
case WM831X_GPIO9_CONTROL:
case WM831X_GPIO10_CONTROL:
case WM831X_GPIO11_CONTROL:
case WM831X_GPIO12_CONTROL:
case WM831X_GPIO13_CONTROL:
case WM831X_GPIO14_CONTROL:
case WM831X_GPIO15_CONTROL:
case WM831X_GPIO16_CONTROL:
case WM831X_CHARGER_CONTROL_1:
case WM831X_CHARGER_CONTROL_2:
case WM831X_CHARGER_STATUS:
case WM831X_BACKUP_CHARGER_CONTROL:
case WM831X_STATUS_LED_1:
case WM831X_STATUS_LED_2:
case WM831X_CURRENT_SINK_1:
case WM831X_CURRENT_SINK_2:
case WM831X_DCDC_ENABLE:
case WM831X_LDO_ENABLE:
case WM831X_DCDC_STATUS:
case WM831X_LDO_STATUS:
case WM831X_DCDC_UV_STATUS:
case WM831X_LDO_UV_STATUS:
case WM831X_DC1_CONTROL_1:
case WM831X_DC1_CONTROL_2:
case WM831X_DC1_ON_CONFIG:
case WM831X_DC1_SLEEP_CONTROL:
case WM831X_DC1_DVS_CONTROL:
case WM831X_DC2_CONTROL_1:
case WM831X_DC2_CONTROL_2:
case WM831X_DC2_ON_CONFIG:
case WM831X_DC2_SLEEP_CONTROL:
case WM831X_DC2_DVS_CONTROL:
case WM831X_DC3_CONTROL_1:
case WM831X_DC3_CONTROL_2:
case WM831X_DC3_ON_CONFIG:
case WM831X_DC3_SLEEP_CONTROL:
case WM831X_DC4_CONTROL:
case WM831X_DC4_SLEEP_CONTROL:
case WM831X_EPE1_CONTROL:
case WM831X_EPE2_CONTROL:
case WM831X_LDO1_CONTROL:
case WM831X_LDO1_ON_CONTROL:
case WM831X_LDO1_SLEEP_CONTROL:
case WM831X_LDO2_CONTROL:
case WM831X_LDO2_ON_CONTROL:
case WM831X_LDO2_SLEEP_CONTROL:
case WM831X_LDO3_CONTROL:
case WM831X_LDO3_ON_CONTROL:
case WM831X_LDO3_SLEEP_CONTROL:
case WM831X_LDO4_CONTROL:
case WM831X_LDO4_ON_CONTROL:
case WM831X_LDO4_SLEEP_CONTROL:
case WM831X_LDO5_CONTROL:
case WM831X_LDO5_ON_CONTROL:
case WM831X_LDO5_SLEEP_CONTROL:
case WM831X_LDO6_CONTROL:
case WM831X_LDO6_ON_CONTROL:
case WM831X_LDO6_SLEEP_CONTROL:
case WM831X_LDO7_CONTROL:
case WM831X_LDO7_ON_CONTROL:
case WM831X_LDO7_SLEEP_CONTROL:
case WM831X_LDO8_CONTROL:
case WM831X_LDO8_ON_CONTROL:
case WM831X_LDO8_SLEEP_CONTROL:
case WM831X_LDO9_CONTROL:
case WM831X_LDO9_ON_CONTROL:
case WM831X_LDO9_SLEEP_CONTROL:
case WM831X_LDO10_CONTROL:
case WM831X_LDO10_ON_CONTROL:
case WM831X_LDO10_SLEEP_CONTROL:
case WM831X_LDO11_ON_CONTROL:
case WM831X_LDO11_SLEEP_CONTROL:
case WM831X_POWER_GOOD_SOURCE_1:
case WM831X_POWER_GOOD_SOURCE_2:
case WM831X_CLOCK_CONTROL_1:
case WM831X_CLOCK_CONTROL_2:
case WM831X_FLL_CONTROL_1:
case WM831X_FLL_CONTROL_2:
case WM831X_FLL_CONTROL_3:
case WM831X_FLL_CONTROL_4:
case WM831X_FLL_CONTROL_5:
case WM831X_UNIQUE_ID_1:
case WM831X_UNIQUE_ID_2:
case WM831X_UNIQUE_ID_3:
case WM831X_UNIQUE_ID_4:
case WM831X_UNIQUE_ID_5:
case WM831X_UNIQUE_ID_6:
case WM831X_UNIQUE_ID_7:
case WM831X_UNIQUE_ID_8:
case WM831X_FACTORY_OTP_ID:
case WM831X_FACTORY_OTP_1:
case WM831X_FACTORY_OTP_2:
case WM831X_FACTORY_OTP_3:
case WM831X_FACTORY_OTP_4:
case WM831X_FACTORY_OTP_5:
case WM831X_CUSTOMER_OTP_ID:
case WM831X_DC1_OTP_CONTROL:
case WM831X_DC2_OTP_CONTROL:
case WM831X_DC3_OTP_CONTROL:
case WM831X_LDO1_2_OTP_CONTROL:
case WM831X_LDO3_4_OTP_CONTROL:
case WM831X_LDO5_6_OTP_CONTROL:
case WM831X_LDO7_8_OTP_CONTROL:
case WM831X_LDO9_10_OTP_CONTROL:
case WM831X_LDO11_EPE_CONTROL:
case WM831X_GPIO1_OTP_CONTROL:
case WM831X_GPIO2_OTP_CONTROL:
case WM831X_GPIO3_OTP_CONTROL:
case WM831X_GPIO4_OTP_CONTROL:
case WM831X_GPIO5_OTP_CONTROL:
case WM831X_GPIO6_OTP_CONTROL:
case WM831X_DBE_CHECK_DATA:
return true;
default:
return false;
}
}
static bool wm831x_reg_writeable(struct device *dev, unsigned int reg)
{
struct wm831x *wm831x = dev_get_drvdata(dev);
if (wm831x_reg_locked(wm831x, reg))
return false;
switch (reg) {
case WM831X_SYSVDD_CONTROL:
case WM831X_THERMAL_MONITORING:
case WM831X_POWER_STATE:
case WM831X_WATCHDOG:
case WM831X_ON_PIN_CONTROL:
case WM831X_RESET_CONTROL:
case WM831X_CONTROL_INTERFACE:
case WM831X_SECURITY_KEY:
case WM831X_SOFTWARE_SCRATCH:
case WM831X_OTP_CONTROL:
case WM831X_GPIO_LEVEL:
case WM831X_INTERRUPT_STATUS_1:
case WM831X_INTERRUPT_STATUS_2:
case WM831X_INTERRUPT_STATUS_3:
case WM831X_INTERRUPT_STATUS_4:
case WM831X_INTERRUPT_STATUS_5:
case WM831X_IRQ_CONFIG:
case WM831X_SYSTEM_INTERRUPTS_MASK:
case WM831X_INTERRUPT_STATUS_1_MASK:
case WM831X_INTERRUPT_STATUS_2_MASK:
case WM831X_INTERRUPT_STATUS_3_MASK:
case WM831X_INTERRUPT_STATUS_4_MASK:
case WM831X_INTERRUPT_STATUS_5_MASK:
case WM831X_RTC_TIME_1:
case WM831X_RTC_TIME_2:
case WM831X_RTC_ALARM_1:
case WM831X_RTC_ALARM_2:
case WM831X_RTC_CONTROL:
case WM831X_RTC_TRIM:
case WM831X_TOUCH_CONTROL_1:
case WM831X_TOUCH_CONTROL_2:
case WM831X_AUXADC_CONTROL:
case WM831X_AUXADC_SOURCE:
case WM831X_COMPARATOR_CONTROL:
case WM831X_COMPARATOR_1:
case WM831X_COMPARATOR_2:
case WM831X_COMPARATOR_3:
case WM831X_COMPARATOR_4:
case WM831X_GPIO1_CONTROL:
case WM831X_GPIO2_CONTROL:
case WM831X_GPIO3_CONTROL:
case WM831X_GPIO4_CONTROL:
case WM831X_GPIO5_CONTROL:
case WM831X_GPIO6_CONTROL:
case WM831X_GPIO7_CONTROL:
case WM831X_GPIO8_CONTROL:
case WM831X_GPIO9_CONTROL:
case WM831X_GPIO10_CONTROL:
case WM831X_GPIO11_CONTROL:
case WM831X_GPIO12_CONTROL:
case WM831X_GPIO13_CONTROL:
case WM831X_GPIO14_CONTROL:
case WM831X_GPIO15_CONTROL:
case WM831X_GPIO16_CONTROL:
case WM831X_CHARGER_CONTROL_1:
case WM831X_CHARGER_CONTROL_2:
case WM831X_CHARGER_STATUS:
case WM831X_BACKUP_CHARGER_CONTROL:
case WM831X_STATUS_LED_1:
case WM831X_STATUS_LED_2:
case WM831X_CURRENT_SINK_1:
case WM831X_CURRENT_SINK_2:
case WM831X_DCDC_ENABLE:
case WM831X_LDO_ENABLE:
case WM831X_DC1_CONTROL_1:
case WM831X_DC1_CONTROL_2:
case WM831X_DC1_ON_CONFIG:
case WM831X_DC1_SLEEP_CONTROL:
case WM831X_DC1_DVS_CONTROL:
case WM831X_DC2_CONTROL_1:
case WM831X_DC2_CONTROL_2:
case WM831X_DC2_ON_CONFIG:
case WM831X_DC2_SLEEP_CONTROL:
case WM831X_DC2_DVS_CONTROL:
case WM831X_DC3_CONTROL_1:
case WM831X_DC3_CONTROL_2:
case WM831X_DC3_ON_CONFIG:
case WM831X_DC3_SLEEP_CONTROL:
case WM831X_DC4_CONTROL:
case WM831X_DC4_SLEEP_CONTROL:
case WM831X_EPE1_CONTROL:
case WM831X_EPE2_CONTROL:
case WM831X_LDO1_CONTROL:
case WM831X_LDO1_ON_CONTROL:
case WM831X_LDO1_SLEEP_CONTROL:
case WM831X_LDO2_CONTROL:
case WM831X_LDO2_ON_CONTROL:
case WM831X_LDO2_SLEEP_CONTROL:
case WM831X_LDO3_CONTROL:
case WM831X_LDO3_ON_CONTROL:
case WM831X_LDO3_SLEEP_CONTROL:
case WM831X_LDO4_CONTROL:
case WM831X_LDO4_ON_CONTROL:
case WM831X_LDO4_SLEEP_CONTROL:
case WM831X_LDO5_CONTROL:
case WM831X_LDO5_ON_CONTROL:
case WM831X_LDO5_SLEEP_CONTROL:
case WM831X_LDO6_CONTROL:
case WM831X_LDO6_ON_CONTROL:
case WM831X_LDO6_SLEEP_CONTROL:
case WM831X_LDO7_CONTROL:
case WM831X_LDO7_ON_CONTROL:
case WM831X_LDO7_SLEEP_CONTROL:
case WM831X_LDO8_CONTROL:
case WM831X_LDO8_ON_CONTROL:
case WM831X_LDO8_SLEEP_CONTROL:
case WM831X_LDO9_CONTROL:
case WM831X_LDO9_ON_CONTROL:
case WM831X_LDO9_SLEEP_CONTROL:
case WM831X_LDO10_CONTROL:
case WM831X_LDO10_ON_CONTROL:
case WM831X_LDO10_SLEEP_CONTROL:
case WM831X_LDO11_ON_CONTROL:
case WM831X_LDO11_SLEEP_CONTROL:
case WM831X_POWER_GOOD_SOURCE_1:
case WM831X_POWER_GOOD_SOURCE_2:
case WM831X_CLOCK_CONTROL_1:
case WM831X_CLOCK_CONTROL_2:
case WM831X_FLL_CONTROL_1:
case WM831X_FLL_CONTROL_2:
case WM831X_FLL_CONTROL_3:
case WM831X_FLL_CONTROL_4:
case WM831X_FLL_CONTROL_5:
return true;
default:
return false;
}
}
static bool wm831x_reg_volatile(struct device *dev, unsigned int reg)
{
switch (reg) {
case WM831X_SYSTEM_STATUS:
case WM831X_ON_SOURCE:
case WM831X_OFF_SOURCE:
case WM831X_GPIO_LEVEL:
case WM831X_SYSTEM_INTERRUPTS:
case WM831X_INTERRUPT_STATUS_1:
case WM831X_INTERRUPT_STATUS_2:
case WM831X_INTERRUPT_STATUS_3:
case WM831X_INTERRUPT_STATUS_4:
case WM831X_INTERRUPT_STATUS_5:
case WM831X_RTC_TIME_1:
case WM831X_RTC_TIME_2:
case WM831X_TOUCH_DATA_X:
case WM831X_TOUCH_DATA_Y:
case WM831X_TOUCH_DATA_Z:
case WM831X_AUXADC_DATA:
case WM831X_CHARGER_STATUS:
case WM831X_DCDC_STATUS:
case WM831X_LDO_STATUS:
case WM831X_DCDC_UV_STATUS:
case WM831X_LDO_UV_STATUS:
return true;
default:
return false;
}
}
/**
* wm831x_reg_read: Read a single WM831x register.
*
* @wm831x: Device to read from.
* @reg: Register to read.
*/
int wm831x_reg_read(struct wm831x *wm831x, unsigned short reg)
{
unsigned int val;
int ret;
ret = regmap_read(wm831x->regmap, reg, &val);
if (ret < 0)
return ret;
else
return val;
}
EXPORT_SYMBOL_GPL(wm831x_reg_read);
/**
* wm831x_bulk_read: Read multiple WM831x registers
*
* @wm831x: Device to read from
* @reg: First register
* @count: Number of registers
* @buf: Buffer to fill.
*/
int wm831x_bulk_read(struct wm831x *wm831x, unsigned short reg,
int count, u16 *buf)
{
return regmap_bulk_read(wm831x->regmap, reg, buf, count);
}
EXPORT_SYMBOL_GPL(wm831x_bulk_read);
static int wm831x_write(struct wm831x *wm831x, unsigned short reg,
int bytes, void *src)
{
u16 *buf = src;
int i, ret;
BUG_ON(bytes % 2);
BUG_ON(bytes <= 0);
for (i = 0; i < bytes / 2; i++) {
if (wm831x_reg_locked(wm831x, reg))
return -EPERM;
dev_vdbg(wm831x->dev, "Write %04x to R%d(0x%x)\n",
buf[i], reg + i, reg + i);
ret = regmap_write(wm831x->regmap, reg + i, buf[i]);
if (ret != 0)
return ret;
}
return 0;
}
/**
* wm831x_reg_write: Write a single WM831x register.
*
* @wm831x: Device to write to.
* @reg: Register to write to.
* @val: Value to write.
*/
int wm831x_reg_write(struct wm831x *wm831x, unsigned short reg,
unsigned short val)
{
int ret;
mutex_lock(&wm831x->io_lock);
ret = wm831x_write(wm831x, reg, 2, &val);
mutex_unlock(&wm831x->io_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm831x_reg_write);
/**
* wm831x_set_bits: Set the value of a bitfield in a WM831x register
*
* @wm831x: Device to write to.
* @reg: Register to write to.
* @mask: Mask of bits to set.
* @val: Value to set (unshifted)
*/
int wm831x_set_bits(struct wm831x *wm831x, unsigned short reg,
unsigned short mask, unsigned short val)
{
int ret;
mutex_lock(&wm831x->io_lock);
if (!wm831x_reg_locked(wm831x, reg))
ret = regmap_update_bits(wm831x->regmap, reg, mask, val);
else
ret = -EPERM;
mutex_unlock(&wm831x->io_lock);
return ret;
}
EXPORT_SYMBOL_GPL(wm831x_set_bits);
static const struct resource wm831x_dcdc1_resources[] = {
{
.start = WM831X_DC1_CONTROL_1,
.end = WM831X_DC1_DVS_CONTROL,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_DC1, "UV"),
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_HC_DC1, "HC"),
};
static const struct resource wm831x_dcdc2_resources[] = {
{
.start = WM831X_DC2_CONTROL_1,
.end = WM831X_DC2_DVS_CONTROL,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_DC2, "UV"),
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_HC_DC2, "HC"),
};
static const struct resource wm831x_dcdc3_resources[] = {
{
.start = WM831X_DC3_CONTROL_1,
.end = WM831X_DC3_SLEEP_CONTROL,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_DC3, "UV"),
};
static const struct resource wm831x_dcdc4_resources[] = {
{
.start = WM831X_DC4_CONTROL,
.end = WM831X_DC4_SLEEP_CONTROL,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_DC4, "UV"),
};
static const struct resource wm8320_dcdc4_buck_resources[] = {
{
.start = WM831X_DC4_CONTROL,
.end = WM832X_DC4_SLEEP_CONTROL,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_DC4, "UV"),
};
static const struct resource wm831x_gpio_resources[] = {
{
.start = WM831X_IRQ_GPIO_1,
.end = WM831X_IRQ_GPIO_16,
.flags = IORESOURCE_IRQ,
},
};
static const struct resource wm831x_isink1_resources[] = {
{
.start = WM831X_CURRENT_SINK_1,
.end = WM831X_CURRENT_SINK_1,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ(WM831X_IRQ_CS1),
};
static const struct resource wm831x_isink2_resources[] = {
{
.start = WM831X_CURRENT_SINK_2,
.end = WM831X_CURRENT_SINK_2,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ(WM831X_IRQ_CS2),
};
static const struct resource wm831x_ldo1_resources[] = {
{
.start = WM831X_LDO1_CONTROL,
.end = WM831X_LDO1_SLEEP_CONTROL,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO1, "UV"),
};
static const struct resource wm831x_ldo2_resources[] = {
{
.start = WM831X_LDO2_CONTROL,
.end = WM831X_LDO2_SLEEP_CONTROL,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO2, "UV"),
};
static const struct resource wm831x_ldo3_resources[] = {
{
.start = WM831X_LDO3_CONTROL,
.end = WM831X_LDO3_SLEEP_CONTROL,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO3, "UV"),
};
static const struct resource wm831x_ldo4_resources[] = {
{
.start = WM831X_LDO4_CONTROL,
.end = WM831X_LDO4_SLEEP_CONTROL,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO4, "UV"),
};
static const struct resource wm831x_ldo5_resources[] = {
{
.start = WM831X_LDO5_CONTROL,
.end = WM831X_LDO5_SLEEP_CONTROL,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO5, "UV"),
};
static const struct resource wm831x_ldo6_resources[] = {
{
.start = WM831X_LDO6_CONTROL,
.end = WM831X_LDO6_SLEEP_CONTROL,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO6, "UV"),
};
static const struct resource wm831x_ldo7_resources[] = {
{
.start = WM831X_LDO7_CONTROL,
.end = WM831X_LDO7_SLEEP_CONTROL,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO7, "UV"),
};
static const struct resource wm831x_ldo8_resources[] = {
{
.start = WM831X_LDO8_CONTROL,
.end = WM831X_LDO8_SLEEP_CONTROL,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO8, "UV"),
};
static const struct resource wm831x_ldo9_resources[] = {
{
.start = WM831X_LDO9_CONTROL,
.end = WM831X_LDO9_SLEEP_CONTROL,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO9, "UV"),
};
static const struct resource wm831x_ldo10_resources[] = {
{
.start = WM831X_LDO10_CONTROL,
.end = WM831X_LDO10_SLEEP_CONTROL,
.flags = IORESOURCE_REG,
},
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO10, "UV"),
};
static const struct resource wm831x_ldo11_resources[] = {
{
.start = WM831X_LDO11_ON_CONTROL,
.end = WM831X_LDO11_SLEEP_CONTROL,
.flags = IORESOURCE_REG,
},
};
static const struct resource wm831x_on_resources[] = {
DEFINE_RES_IRQ(WM831X_IRQ_ON),
};
static const struct resource wm831x_power_resources[] = {
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_PPM_SYSLO, "SYSLO"),
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_PPM_PWR_SRC, "PWR SRC"),
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_PPM_USB_CURR, "USB CURR"),
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_BATT_HOT, "BATT HOT"),
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_BATT_COLD, "BATT COLD"),
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_BATT_FAIL, "BATT FAIL"),
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_OV, "OV"),
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_END, "END"),
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_TO, "TO"),
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_MODE, "MODE"),
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_START, "START"),
};
static const struct resource wm831x_rtc_resources[] = {
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_RTC_PER, "PER"),
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_RTC_ALM, "ALM"),
};
static const struct resource wm831x_status1_resources[] = {
{
.start = WM831X_STATUS_LED_1,
.end = WM831X_STATUS_LED_1,
.flags = IORESOURCE_REG,
},
};
static const struct resource wm831x_status2_resources[] = {
{
.start = WM831X_STATUS_LED_2,
.end = WM831X_STATUS_LED_2,
.flags = IORESOURCE_REG,
},
};
static const struct resource wm831x_touch_resources[] = {
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_TCHPD, "TCHPD"),
DEFINE_RES_IRQ_NAMED(WM831X_IRQ_TCHDATA, "TCHDATA"),
};
static const struct resource wm831x_wdt_resources[] = {
DEFINE_RES_IRQ(WM831X_IRQ_WDOG_TO),
};
static const struct mfd_cell wm8310_devs[] = {
{
.name = "wm831x-backup",
},
{
.name = "wm831x-buckv",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
.resources = wm831x_dcdc1_resources,
},
{
.name = "wm831x-buckv",
.id = 2,
.num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
.resources = wm831x_dcdc2_resources,
},
{
.name = "wm831x-buckp",
.id = 3,
.num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
.resources = wm831x_dcdc3_resources,
},
{
.name = "wm831x-boostp",
.id = 4,
.num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
.resources = wm831x_dcdc4_resources,
},
{
.name = "wm831x-clk",
},
{
.name = "wm831x-epe",
.id = 1,
},
{
.name = "wm831x-epe",
.id = 2,
},
{
.name = "wm831x-gpio",
.num_resources = ARRAY_SIZE(wm831x_gpio_resources),
.resources = wm831x_gpio_resources,
},
{
.name = "wm831x-hwmon",
},
{
.name = "wm831x-isink",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_isink1_resources),
.resources = wm831x_isink1_resources,
},
{
.name = "wm831x-isink",
.id = 2,
.num_resources = ARRAY_SIZE(wm831x_isink2_resources),
.resources = wm831x_isink2_resources,
},
{
.name = "wm831x-ldo",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
.resources = wm831x_ldo1_resources,
},
{
.name = "wm831x-ldo",
.id = 2,
.num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
.resources = wm831x_ldo2_resources,
},
{
.name = "wm831x-ldo",
.id = 3,
.num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
.resources = wm831x_ldo3_resources,
},
{
.name = "wm831x-ldo",
.id = 4,
.num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
.resources = wm831x_ldo4_resources,
},
{
.name = "wm831x-ldo",
.id = 5,
.num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
.resources = wm831x_ldo5_resources,
},
{
.name = "wm831x-ldo",
.id = 6,
.num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
.resources = wm831x_ldo6_resources,
},
{
.name = "wm831x-aldo",
.id = 7,
.num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
.resources = wm831x_ldo7_resources,
},
{
.name = "wm831x-aldo",
.id = 8,
.num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
.resources = wm831x_ldo8_resources,
},
{
.name = "wm831x-aldo",
.id = 9,
.num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
.resources = wm831x_ldo9_resources,
},
{
.name = "wm831x-aldo",
.id = 10,
.num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
.resources = wm831x_ldo10_resources,
},
{
.name = "wm831x-alive-ldo",
.id = 11,
.num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
.resources = wm831x_ldo11_resources,
},
{
.name = "wm831x-on",
.num_resources = ARRAY_SIZE(wm831x_on_resources),
.resources = wm831x_on_resources,
},
{
.name = "wm831x-power",
.num_resources = ARRAY_SIZE(wm831x_power_resources),
.resources = wm831x_power_resources,
},
{
.name = "wm831x-status",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_status1_resources),
.resources = wm831x_status1_resources,
},
{
.name = "wm831x-status",
.id = 2,
.num_resources = ARRAY_SIZE(wm831x_status2_resources),
.resources = wm831x_status2_resources,
},
{
.name = "wm831x-watchdog",
.num_resources = ARRAY_SIZE(wm831x_wdt_resources),
.resources = wm831x_wdt_resources,
},
};
static const struct mfd_cell wm8311_devs[] = {
{
.name = "wm831x-backup",
},
{
.name = "wm831x-buckv",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
.resources = wm831x_dcdc1_resources,
},
{
.name = "wm831x-buckv",
.id = 2,
.num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
.resources = wm831x_dcdc2_resources,
},
{
.name = "wm831x-buckp",
.id = 3,
.num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
.resources = wm831x_dcdc3_resources,
},
{
.name = "wm831x-boostp",
.id = 4,
.num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
.resources = wm831x_dcdc4_resources,
},
{
.name = "wm831x-clk",
},
{
.name = "wm831x-epe",
.id = 1,
},
{
.name = "wm831x-epe",
.id = 2,
},
{
.name = "wm831x-gpio",
.num_resources = ARRAY_SIZE(wm831x_gpio_resources),
.resources = wm831x_gpio_resources,
},
{
.name = "wm831x-hwmon",
},
{
.name = "wm831x-isink",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_isink1_resources),
.resources = wm831x_isink1_resources,
},
{
.name = "wm831x-isink",
.id = 2,
.num_resources = ARRAY_SIZE(wm831x_isink2_resources),
.resources = wm831x_isink2_resources,
},
{
.name = "wm831x-ldo",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
.resources = wm831x_ldo1_resources,
},
{
.name = "wm831x-ldo",
.id = 2,
.num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
.resources = wm831x_ldo2_resources,
},
{
.name = "wm831x-ldo",
.id = 3,
.num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
.resources = wm831x_ldo3_resources,
},
{
.name = "wm831x-ldo",
.id = 4,
.num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
.resources = wm831x_ldo4_resources,
},
{
.name = "wm831x-ldo",
.id = 5,
.num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
.resources = wm831x_ldo5_resources,
},
{
.name = "wm831x-aldo",
.id = 7,
.num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
.resources = wm831x_ldo7_resources,
},
{
.name = "wm831x-alive-ldo",
.id = 11,
.num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
.resources = wm831x_ldo11_resources,
},
{
.name = "wm831x-on",
.num_resources = ARRAY_SIZE(wm831x_on_resources),
.resources = wm831x_on_resources,
},
{
.name = "wm831x-power",
.num_resources = ARRAY_SIZE(wm831x_power_resources),
.resources = wm831x_power_resources,
},
{
.name = "wm831x-status",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_status1_resources),
.resources = wm831x_status1_resources,
},
{
.name = "wm831x-status",
.id = 2,
.num_resources = ARRAY_SIZE(wm831x_status2_resources),
.resources = wm831x_status2_resources,
},
{
.name = "wm831x-watchdog",
.num_resources = ARRAY_SIZE(wm831x_wdt_resources),
.resources = wm831x_wdt_resources,
},
};
static const struct mfd_cell wm8312_devs[] = {
{
.name = "wm831x-backup",
},
{
.name = "wm831x-buckv",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
.resources = wm831x_dcdc1_resources,
},
{
.name = "wm831x-buckv",
.id = 2,
.num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
.resources = wm831x_dcdc2_resources,
},
{
.name = "wm831x-buckp",
.id = 3,
.num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
.resources = wm831x_dcdc3_resources,
},
{
.name = "wm831x-boostp",
.id = 4,
.num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
.resources = wm831x_dcdc4_resources,
},
{
.name = "wm831x-clk",
},
{
.name = "wm831x-epe",
.id = 1,
},
{
.name = "wm831x-epe",
.id = 2,
},
{
.name = "wm831x-gpio",
.num_resources = ARRAY_SIZE(wm831x_gpio_resources),
.resources = wm831x_gpio_resources,
},
{
.name = "wm831x-hwmon",
},
{
.name = "wm831x-isink",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_isink1_resources),
.resources = wm831x_isink1_resources,
},
{
.name = "wm831x-isink",
.id = 2,
.num_resources = ARRAY_SIZE(wm831x_isink2_resources),
.resources = wm831x_isink2_resources,
},
{
.name = "wm831x-ldo",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
.resources = wm831x_ldo1_resources,
},
{
.name = "wm831x-ldo",
.id = 2,
.num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
.resources = wm831x_ldo2_resources,
},
{
.name = "wm831x-ldo",
.id = 3,
.num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
.resources = wm831x_ldo3_resources,
},
{
.name = "wm831x-ldo",
.id = 4,
.num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
.resources = wm831x_ldo4_resources,
},
{
.name = "wm831x-ldo",
.id = 5,
.num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
.resources = wm831x_ldo5_resources,
},
{
.name = "wm831x-ldo",
.id = 6,
.num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
.resources = wm831x_ldo6_resources,
},
{
.name = "wm831x-aldo",
.id = 7,
.num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
.resources = wm831x_ldo7_resources,
},
{
.name = "wm831x-aldo",
.id = 8,
.num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
.resources = wm831x_ldo8_resources,
},
{
.name = "wm831x-aldo",
.id = 9,
.num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
.resources = wm831x_ldo9_resources,
},
{
.name = "wm831x-aldo",
.id = 10,
.num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
.resources = wm831x_ldo10_resources,
},
{
.name = "wm831x-alive-ldo",
.id = 11,
.num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
.resources = wm831x_ldo11_resources,
},
{
.name = "wm831x-on",
.num_resources = ARRAY_SIZE(wm831x_on_resources),
.resources = wm831x_on_resources,
},
{
.name = "wm831x-power",
.num_resources = ARRAY_SIZE(wm831x_power_resources),
.resources = wm831x_power_resources,
},
{
.name = "wm831x-status",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_status1_resources),
.resources = wm831x_status1_resources,
},
{
.name = "wm831x-status",
.id = 2,
.num_resources = ARRAY_SIZE(wm831x_status2_resources),
.resources = wm831x_status2_resources,
},
{
.name = "wm831x-watchdog",
.num_resources = ARRAY_SIZE(wm831x_wdt_resources),
.resources = wm831x_wdt_resources,
},
};
static const struct mfd_cell wm8320_devs[] = {
{
.name = "wm831x-backup",
},
{
.name = "wm831x-buckv",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
.resources = wm831x_dcdc1_resources,
},
{
.name = "wm831x-buckv",
.id = 2,
.num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
.resources = wm831x_dcdc2_resources,
},
{
.name = "wm831x-buckp",
.id = 3,
.num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
.resources = wm831x_dcdc3_resources,
},
{
.name = "wm831x-buckp",
.id = 4,
.num_resources = ARRAY_SIZE(wm8320_dcdc4_buck_resources),
.resources = wm8320_dcdc4_buck_resources,
},
{
.name = "wm831x-clk",
},
{
.name = "wm831x-gpio",
.num_resources = ARRAY_SIZE(wm831x_gpio_resources),
.resources = wm831x_gpio_resources,
},
{
.name = "wm831x-hwmon",
},
{
.name = "wm831x-ldo",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
.resources = wm831x_ldo1_resources,
},
{
.name = "wm831x-ldo",
.id = 2,
.num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
.resources = wm831x_ldo2_resources,
},
{
.name = "wm831x-ldo",
.id = 3,
.num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
.resources = wm831x_ldo3_resources,
},
{
.name = "wm831x-ldo",
.id = 4,
.num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
.resources = wm831x_ldo4_resources,
},
{
.name = "wm831x-ldo",
.id = 5,
.num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
.resources = wm831x_ldo5_resources,
},
{
.name = "wm831x-ldo",
.id = 6,
.num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
.resources = wm831x_ldo6_resources,
},
{
.name = "wm831x-aldo",
.id = 7,
.num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
.resources = wm831x_ldo7_resources,
},
{
.name = "wm831x-aldo",
.id = 8,
.num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
.resources = wm831x_ldo8_resources,
},
{
.name = "wm831x-aldo",
.id = 9,
.num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
.resources = wm831x_ldo9_resources,
},
{
.name = "wm831x-aldo",
.id = 10,
.num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
.resources = wm831x_ldo10_resources,
},
{
.name = "wm831x-alive-ldo",
.id = 11,
.num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
.resources = wm831x_ldo11_resources,
},
{
.name = "wm831x-on",
.num_resources = ARRAY_SIZE(wm831x_on_resources),
.resources = wm831x_on_resources,
},
{
.name = "wm831x-status",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_status1_resources),
.resources = wm831x_status1_resources,
},
{
.name = "wm831x-status",
.id = 2,
.num_resources = ARRAY_SIZE(wm831x_status2_resources),
.resources = wm831x_status2_resources,
},
{
.name = "wm831x-watchdog",
.num_resources = ARRAY_SIZE(wm831x_wdt_resources),
.resources = wm831x_wdt_resources,
},
};
static const struct mfd_cell touch_devs[] = {
{
.name = "wm831x-touch",
.num_resources = ARRAY_SIZE(wm831x_touch_resources),
.resources = wm831x_touch_resources,
},
};
static const struct mfd_cell rtc_devs[] = {
{
.name = "wm831x-rtc",
.num_resources = ARRAY_SIZE(wm831x_rtc_resources),
.resources = wm831x_rtc_resources,
},
};
static const struct mfd_cell backlight_devs[] = {
{
.name = "wm831x-backlight",
},
};
struct regmap_config wm831x_regmap_config = {
.reg_bits = 16,
.val_bits = 16,
.cache_type = REGCACHE_RBTREE,
.max_register = WM831X_DBE_CHECK_DATA,
.readable_reg = wm831x_reg_readable,
.writeable_reg = wm831x_reg_writeable,
.volatile_reg = wm831x_reg_volatile,
};
EXPORT_SYMBOL_GPL(wm831x_regmap_config);
const struct of_device_id wm831x_of_match[] = {
{ .compatible = "wlf,wm8310", .data = (void *)WM8310 },
{ .compatible = "wlf,wm8311", .data = (void *)WM8311 },
{ .compatible = "wlf,wm8312", .data = (void *)WM8312 },
{ .compatible = "wlf,wm8320", .data = (void *)WM8320 },
{ .compatible = "wlf,wm8321", .data = (void *)WM8321 },
{ .compatible = "wlf,wm8325", .data = (void *)WM8325 },
{ .compatible = "wlf,wm8326", .data = (void *)WM8326 },
{ },
};
EXPORT_SYMBOL_GPL(wm831x_of_match);
/*
* Instantiate the generic non-control parts of the device.
*/
int wm831x_device_init(struct wm831x *wm831x, int irq)
{
struct wm831x_pdata *pdata = &wm831x->pdata;
int rev, wm831x_num;
enum wm831x_parent parent;
int ret, i;
mutex_init(&wm831x->io_lock);
mutex_init(&wm831x->key_lock);
dev_set_drvdata(wm831x->dev, wm831x);
wm831x->soft_shutdown = pdata->soft_shutdown;
ret = wm831x_reg_read(wm831x, WM831X_PARENT_ID);
if (ret < 0) {
dev_err(wm831x->dev, "Failed to read parent ID: %d\n", ret);
goto err;
}
switch (ret) {
case 0x6204:
case 0x6246:
break;
default:
dev_err(wm831x->dev, "Device is not a WM831x: ID %x\n", ret);
ret = -EINVAL;
goto err;
}
ret = wm831x_reg_read(wm831x, WM831X_REVISION);
if (ret < 0) {
dev_err(wm831x->dev, "Failed to read revision: %d\n", ret);
goto err;
}
rev = (ret & WM831X_PARENT_REV_MASK) >> WM831X_PARENT_REV_SHIFT;
ret = wm831x_reg_read(wm831x, WM831X_RESET_ID);
if (ret < 0) {
dev_err(wm831x->dev, "Failed to read device ID: %d\n", ret);
goto err;
}
/* Some engineering samples do not have the ID set, rely on
* the device being registered correctly.
*/
if (ret == 0) {
dev_info(wm831x->dev, "Device is an engineering sample\n");
ret = wm831x->type;
}
switch (ret) {
case WM8310:
parent = WM8310;
wm831x->num_gpio = 16;
wm831x->charger_irq_wake = 1;
if (rev > 0) {
wm831x->has_gpio_ena = 1;
wm831x->has_cs_sts = 1;
}
dev_info(wm831x->dev, "WM8310 revision %c\n", 'A' + rev);
break;
case WM8311:
parent = WM8311;
wm831x->num_gpio = 16;
wm831x->charger_irq_wake = 1;
if (rev > 0) {
wm831x->has_gpio_ena = 1;
wm831x->has_cs_sts = 1;
}
dev_info(wm831x->dev, "WM8311 revision %c\n", 'A' + rev);
break;
case WM8312:
parent = WM8312;
wm831x->num_gpio = 16;
wm831x->charger_irq_wake = 1;
if (rev > 0) {
wm831x->has_gpio_ena = 1;
wm831x->has_cs_sts = 1;
}
dev_info(wm831x->dev, "WM8312 revision %c\n", 'A' + rev);
break;
case WM8320:
parent = WM8320;
wm831x->num_gpio = 12;
dev_info(wm831x->dev, "WM8320 revision %c\n", 'A' + rev);
break;
case WM8321:
parent = WM8321;
wm831x->num_gpio = 12;
dev_info(wm831x->dev, "WM8321 revision %c\n", 'A' + rev);
break;
case WM8325:
parent = WM8325;
wm831x->num_gpio = 12;
dev_info(wm831x->dev, "WM8325 revision %c\n", 'A' + rev);
break;
case WM8326:
parent = WM8326;
wm831x->num_gpio = 12;
dev_info(wm831x->dev, "WM8326 revision %c\n", 'A' + rev);
break;
default:
dev_err(wm831x->dev, "Unknown WM831x device %04x\n", ret);
ret = -EINVAL;
goto err;
}
/* This will need revisiting in future but is OK for all
* current parts.
*/
if (parent != wm831x->type)
dev_warn(wm831x->dev, "Device was registered as a WM%x\n",
wm831x->type);
/* Bootstrap the user key */
ret = wm831x_reg_read(wm831x, WM831X_SECURITY_KEY);
if (ret < 0) {
dev_err(wm831x->dev, "Failed to read security key: %d\n", ret);
goto err;
}
if (ret != 0) {
dev_warn(wm831x->dev, "Security key had non-zero value %x\n",
ret);
wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0);
}
wm831x->locked = 1;
if (pdata->pre_init) {
ret = pdata->pre_init(wm831x);
if (ret != 0) {
dev_err(wm831x->dev, "pre_init() failed: %d\n", ret);
goto err;
}
}
for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
if (!pdata->gpio_defaults[i])
continue;
wm831x_reg_write(wm831x,
WM831X_GPIO1_CONTROL + i,
pdata->gpio_defaults[i] & 0xffff);
}
/* Multiply by 10 as we have many subdevices of the same type */
if (pdata->wm831x_num)
wm831x_num = pdata->wm831x_num * 10;
else
wm831x_num = -1;
ret = wm831x_irq_init(wm831x, irq);
if (ret != 0)
goto err;
wm831x_auxadc_init(wm831x);
/* The core device is up, instantiate the subdevices. */
switch (parent) {
case WM8310:
ret = mfd_add_devices(wm831x->dev, wm831x_num,
wm8310_devs, ARRAY_SIZE(wm8310_devs),
NULL, 0, NULL);
break;
case WM8311:
ret = mfd_add_devices(wm831x->dev, wm831x_num,
wm8311_devs, ARRAY_SIZE(wm8311_devs),
NULL, 0, NULL);
if (!pdata->disable_touch)
mfd_add_devices(wm831x->dev, wm831x_num,
touch_devs, ARRAY_SIZE(touch_devs),
NULL, 0, NULL);
break;
case WM8312:
ret = mfd_add_devices(wm831x->dev, wm831x_num,
wm8312_devs, ARRAY_SIZE(wm8312_devs),
NULL, 0, NULL);
if (!pdata->disable_touch)
mfd_add_devices(wm831x->dev, wm831x_num,
touch_devs, ARRAY_SIZE(touch_devs),
NULL, 0, NULL);
break;
case WM8320:
case WM8321:
case WM8325:
case WM8326:
ret = mfd_add_devices(wm831x->dev, wm831x_num,
wm8320_devs, ARRAY_SIZE(wm8320_devs),
NULL, 0, NULL);
break;
default:
/* If this happens the bus probe function is buggy */
BUG();
}
if (ret != 0) {
dev_err(wm831x->dev, "Failed to add children\n");
goto err_irq;
}
/* The RTC can only be used if the 32.768kHz crystal is
* enabled; this can't be controlled by software at runtime.
*/
ret = wm831x_reg_read(wm831x, WM831X_CLOCK_CONTROL_2);
if (ret < 0) {
dev_err(wm831x->dev, "Failed to read clock status: %d\n", ret);
goto err_irq;
}
if (ret & WM831X_XTAL_ENA) {
ret = mfd_add_devices(wm831x->dev, wm831x_num,
rtc_devs, ARRAY_SIZE(rtc_devs),
NULL, 0, NULL);
if (ret != 0) {
dev_err(wm831x->dev, "Failed to add RTC: %d\n", ret);
goto err_irq;
}
} else {
dev_info(wm831x->dev, "32.768kHz clock disabled, no RTC\n");
}
if (pdata->backlight) {
/* Treat errors as non-critical */
ret = mfd_add_devices(wm831x->dev, wm831x_num, backlight_devs,
ARRAY_SIZE(backlight_devs), NULL,
0, NULL);
if (ret < 0)
dev_err(wm831x->dev, "Failed to add backlight: %d\n",
ret);
}
wm831x_otp_init(wm831x);
if (pdata->post_init) {
ret = pdata->post_init(wm831x);
if (ret != 0) {
dev_err(wm831x->dev, "post_init() failed: %d\n", ret);
goto err_irq;
}
}
return 0;
err_irq:
wm831x_irq_exit(wm831x);
err:
mfd_remove_devices(wm831x->dev);
return ret;
}
int wm831x_device_suspend(struct wm831x *wm831x)
{
int reg, mask;
/* If the charger IRQs are a wake source then make sure we ack
* them even if they're not actively being used (eg, no power
* driver or no IRQ line wired up) then acknowledge the
* interrupts otherwise suspend won't last very long.
*/
if (wm831x->charger_irq_wake) {
reg = wm831x_reg_read(wm831x, WM831X_INTERRUPT_STATUS_2_MASK);
mask = WM831X_CHG_BATT_HOT_EINT |
WM831X_CHG_BATT_COLD_EINT |
WM831X_CHG_BATT_FAIL_EINT |
WM831X_CHG_OV_EINT | WM831X_CHG_END_EINT |
WM831X_CHG_TO_EINT | WM831X_CHG_MODE_EINT |
WM831X_CHG_START_EINT;
/* If any of the interrupts are masked read the statuses */
if (reg & mask)
reg = wm831x_reg_read(wm831x,
WM831X_INTERRUPT_STATUS_2);
if (reg & mask) {
dev_info(wm831x->dev,
"Acknowledging masked charger IRQs: %x\n",
reg & mask);
wm831x_reg_write(wm831x, WM831X_INTERRUPT_STATUS_2,
reg & mask);
}
}
return 0;
}
void wm831x_device_shutdown(struct wm831x *wm831x)
{
if (wm831x->soft_shutdown) {
dev_info(wm831x->dev, "Initiating shutdown...\n");
wm831x_set_bits(wm831x, WM831X_POWER_STATE, WM831X_CHIP_ON, 0);
}
}
EXPORT_SYMBOL_GPL(wm831x_device_shutdown);
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