Commit 21b7c58f authored by Matti Vaittinen's avatar Matti Vaittinen Committed by Lee Jones
Browse files

mfd: bd70528: Support ROHM bd70528 PMIC core 



ROHM BD70528MWV is an ultra-low quiescent current general
purpose single-chip power management IC for battery-powered
portable devices.

Add MFD core which enables chip access for following subdevices:
	- regulators/LED drivers
	- battery-charger
	- gpios
	- 32.768kHz clk
	- RTC
	- watchdog

Signed-off-by: default avatarMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent 2a6a7aac

drivers/mfd/Kconfig

+17 −0
Original line number Diff line number Diff line
@@ -1890,6 +1890,23 @@ config MFD_ROHM_BD718XX 
	  NXP i.MX8. It contains 8 BUCK outputs and 7 LDOs, voltage monitoring

	  and emergency shut down as well as 32,768KHz clock output.



config MFD_ROHM_BD70528

	tristate "ROHM BD70528 Power Management IC"

	depends on I2C=y

	depends on OF

	select REGMAP_I2C

	select REGMAP_IRQ

	select MFD_CORE

	help

	  Select this option to get support for the ROHM BD70528 Power

	  Management IC. BD71837 is general purpose single-chip power

	  management IC for battery-powered portable devices. It contains

	  3 ultra-low current consumption buck converters, 3 LDOs and 2 LED

	  drivers. Also included are 4 GPIOs, a real-time clock (RTC), a 32kHz

	  crystal oscillator, high-accuracy VREF for use with an external ADC,

	  10 bits SAR ADC for battery temperature monitor and 1S battery

	  charger.



config MFD_STM32_LPTIMER

	tristate "Support for STM32 Low-Power Timer"

	depends on (ARCH_STM32 && OF) || COMPILE_TEST

drivers/mfd/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -247,5 +247,7 @@ obj-$(CONFIG_MFD_STM32_TIMERS) += stm32-timers.o 
obj-$(CONFIG_MFD_MXS_LRADC)     += mxs-lradc.o

obj-$(CONFIG_MFD_SC27XX_PMIC)	+= sprd-sc27xx-spi.o

obj-$(CONFIG_RAVE_SP_CORE)	+= rave-sp.o

obj-$(CONFIG_MFD_ROHM_BD70528)	+= rohm-bd70528.o

obj-$(CONFIG_MFD_ROHM_BD718XX)	+= rohm-bd718x7.o

obj-$(CONFIG_MFD_STMFX) 	+= stmfx.o

drivers/mfd/rohm-bd70528.c

0 → 100644
+316 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-or-later

//

// Copyright (C) 2019 ROHM Semiconductors

//

// ROHM BD70528 PMIC driver



#include <linux/i2c.h>

#include <linux/interrupt.h>

#include <linux/ioport.h>

#include <linux/irq.h>

#include <linux/mfd/core.h>

#include <linux/mfd/rohm-bd70528.h>

#include <linux/module.h>

#include <linux/of_device.h>

#include <linux/regmap.h>

#include <linux/types.h>



#define BD70528_NUM_OF_GPIOS 4



static const struct resource rtc_irqs[] = {

	DEFINE_RES_IRQ_NAMED(BD70528_INT_RTC_ALARM, "bd70528-rtc-alm"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_ELPS_TIM, "bd70528-elapsed-timer"),

};



static const struct resource charger_irqs[] = {

	DEFINE_RES_IRQ_NAMED(BD70528_INT_BAT_OV_RES, "bd70528-bat-ov-res"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_BAT_OV_DET, "bd70528-bat-ov-det"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_DBAT_DET, "bd70528-bat-dead"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_BATTSD_COLD_RES, "bd70528-bat-warmed"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_BATTSD_COLD_DET, "bd70528-bat-cold"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_BATTSD_HOT_RES, "bd70528-bat-cooled"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_BATTSD_HOT_DET, "bd70528-bat-hot"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_CHG_TSD, "bd70528-chg-tshd"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_BAT_RMV, "bd70528-bat-removed"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_BAT_DET, "bd70528-bat-detected"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_DCIN2_OV_RES, "bd70528-dcin2-ov-res"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_DCIN2_OV_DET, "bd70528-dcin2-ov-det"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_DCIN2_RMV, "bd70528-dcin2-removed"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_DCIN2_DET, "bd70528-dcin2-detected"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_DCIN1_RMV, "bd70528-dcin1-removed"),

	DEFINE_RES_IRQ_NAMED(BD70528_INT_DCIN1_DET, "bd70528-dcin1-detected"),

};



static struct mfd_cell bd70528_mfd_cells[] = {

	{ .name = "bd70528-pmic", },

	{ .name = "bd70528-gpio", },

	/*

	 * We use BD71837 driver to drive the clock block. Only differences to

	 * BD70528 clock gate are the register address and mask.

	 */

	{ .name = "bd718xx-clk", },

	{ .name = "bd70528-wdt", },

	{

		.name = "bd70528-power",

		.resources = charger_irqs,

		.num_resources = ARRAY_SIZE(charger_irqs),

	}, {

		.name = "bd70528-rtc",

		.resources = rtc_irqs,

		.num_resources = ARRAY_SIZE(rtc_irqs),

	},

};



static const struct regmap_range volatile_ranges[] = {

	{

		.range_min = BD70528_REG_INT_MAIN,

		.range_max = BD70528_REG_INT_OP_FAIL,

	}, {

		.range_min = BD70528_REG_RTC_COUNT_H,

		.range_max = BD70528_REG_RTC_ALM_REPEAT,

	}, {

		/*

		 * WDT control reg is special. Magic values must be written to

		 * it in order to change the control. Should not be cached.

		 */

		.range_min = BD70528_REG_WDT_CTRL,

		.range_max = BD70528_REG_WDT_CTRL,

	}, {

		/*

		 * BD70528 also contains a few other registers which require

		 * magic sequences to be written in order to update the value.

		 * At least SHIPMODE, HWRESET, WARMRESET,and STANDBY

		 */

		.range_min = BD70528_REG_SHIPMODE,

		.range_max = BD70528_REG_STANDBY,

	},

};



static const struct regmap_access_table volatile_regs = {

	.yes_ranges = &volatile_ranges[0],

	.n_yes_ranges = ARRAY_SIZE(volatile_ranges),

};



static struct regmap_config bd70528_regmap = {

	.reg_bits = 8,

	.val_bits = 8,

	.volatile_table = &volatile_regs,

	.max_register = BD70528_MAX_REGISTER,

	.cache_type = REGCACHE_RBTREE,

};



/*

 * Mapping of main IRQ register bits to sub-IRQ register offsets so that we can

 * access corect sub-IRQ registers based on bits that are set in main IRQ

 * register.

 */



/* bit [0] - Shutdown register */

unsigned int bit0_offsets[] = {0};	/* Shutdown register */

unsigned int bit1_offsets[] = {1};	/* Power failure register */

unsigned int bit2_offsets[] = {2};	/* VR FAULT register */

unsigned int bit3_offsets[] = {3};	/* PMU register interrupts */

unsigned int bit4_offsets[] = {4, 5};	/* Charger 1 and Charger 2 registers */

unsigned int bit5_offsets[] = {6};	/* RTC register */

unsigned int bit6_offsets[] = {7};	/* GPIO register */

unsigned int bit7_offsets[] = {8};	/* Invalid operation register */



static struct regmap_irq_sub_irq_map bd70528_sub_irq_offsets[] = {

	REGMAP_IRQ_MAIN_REG_OFFSET(bit0_offsets),

	REGMAP_IRQ_MAIN_REG_OFFSET(bit1_offsets),

	REGMAP_IRQ_MAIN_REG_OFFSET(bit2_offsets),

	REGMAP_IRQ_MAIN_REG_OFFSET(bit3_offsets),

	REGMAP_IRQ_MAIN_REG_OFFSET(bit4_offsets),

	REGMAP_IRQ_MAIN_REG_OFFSET(bit5_offsets),

	REGMAP_IRQ_MAIN_REG_OFFSET(bit6_offsets),

	REGMAP_IRQ_MAIN_REG_OFFSET(bit7_offsets),

};



static struct regmap_irq bd70528_irqs[] = {

	REGMAP_IRQ_REG(BD70528_INT_LONGPUSH, 0, BD70528_INT_LONGPUSH_MASK),

	REGMAP_IRQ_REG(BD70528_INT_WDT, 0, BD70528_INT_WDT_MASK),

	REGMAP_IRQ_REG(BD70528_INT_HWRESET, 0, BD70528_INT_HWRESET_MASK),

	REGMAP_IRQ_REG(BD70528_INT_RSTB_FAULT, 0, BD70528_INT_RSTB_FAULT_MASK),

	REGMAP_IRQ_REG(BD70528_INT_VBAT_UVLO, 0, BD70528_INT_VBAT_UVLO_MASK),

	REGMAP_IRQ_REG(BD70528_INT_TSD, 0, BD70528_INT_TSD_MASK),

	REGMAP_IRQ_REG(BD70528_INT_RSTIN, 0, BD70528_INT_RSTIN_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BUCK1_FAULT, 1,

		       BD70528_INT_BUCK1_FAULT_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BUCK2_FAULT, 1,

		       BD70528_INT_BUCK2_FAULT_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BUCK3_FAULT, 1,

		       BD70528_INT_BUCK3_FAULT_MASK),

	REGMAP_IRQ_REG(BD70528_INT_LDO1_FAULT, 1, BD70528_INT_LDO1_FAULT_MASK),

	REGMAP_IRQ_REG(BD70528_INT_LDO2_FAULT, 1, BD70528_INT_LDO2_FAULT_MASK),

	REGMAP_IRQ_REG(BD70528_INT_LDO3_FAULT, 1, BD70528_INT_LDO3_FAULT_MASK),

	REGMAP_IRQ_REG(BD70528_INT_LED1_FAULT, 1, BD70528_INT_LED1_FAULT_MASK),

	REGMAP_IRQ_REG(BD70528_INT_LED2_FAULT, 1, BD70528_INT_LED2_FAULT_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BUCK1_OCP, 2, BD70528_INT_BUCK1_OCP_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BUCK2_OCP, 2, BD70528_INT_BUCK2_OCP_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BUCK3_OCP, 2, BD70528_INT_BUCK3_OCP_MASK),

	REGMAP_IRQ_REG(BD70528_INT_LED1_OCP, 2, BD70528_INT_LED1_OCP_MASK),

	REGMAP_IRQ_REG(BD70528_INT_LED2_OCP, 2, BD70528_INT_LED2_OCP_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BUCK1_FULLON, 2,

		       BD70528_INT_BUCK1_FULLON_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BUCK2_FULLON, 2,

		       BD70528_INT_BUCK2_FULLON_MASK),

	REGMAP_IRQ_REG(BD70528_INT_SHORTPUSH, 3, BD70528_INT_SHORTPUSH_MASK),

	REGMAP_IRQ_REG(BD70528_INT_AUTO_WAKEUP, 3,

		       BD70528_INT_AUTO_WAKEUP_MASK),

	REGMAP_IRQ_REG(BD70528_INT_STATE_CHANGE, 3,

		       BD70528_INT_STATE_CHANGE_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BAT_OV_RES, 4, BD70528_INT_BAT_OV_RES_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BAT_OV_DET, 4, BD70528_INT_BAT_OV_DET_MASK),

	REGMAP_IRQ_REG(BD70528_INT_DBAT_DET, 4, BD70528_INT_DBAT_DET_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BATTSD_COLD_RES, 4,

		       BD70528_INT_BATTSD_COLD_RES_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BATTSD_COLD_DET, 4,

		       BD70528_INT_BATTSD_COLD_DET_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BATTSD_HOT_RES, 4,

		       BD70528_INT_BATTSD_HOT_RES_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BATTSD_HOT_DET, 4,

		       BD70528_INT_BATTSD_HOT_DET_MASK),

	REGMAP_IRQ_REG(BD70528_INT_CHG_TSD, 4, BD70528_INT_CHG_TSD_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BAT_RMV, 5, BD70528_INT_BAT_RMV_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BAT_DET, 5, BD70528_INT_BAT_DET_MASK),

	REGMAP_IRQ_REG(BD70528_INT_DCIN2_OV_RES, 5,

		       BD70528_INT_DCIN2_OV_RES_MASK),

	REGMAP_IRQ_REG(BD70528_INT_DCIN2_OV_DET, 5,

		       BD70528_INT_DCIN2_OV_DET_MASK),

	REGMAP_IRQ_REG(BD70528_INT_DCIN2_RMV, 5, BD70528_INT_DCIN2_RMV_MASK),

	REGMAP_IRQ_REG(BD70528_INT_DCIN2_DET, 5, BD70528_INT_DCIN2_DET_MASK),

	REGMAP_IRQ_REG(BD70528_INT_DCIN1_RMV, 5, BD70528_INT_DCIN1_RMV_MASK),

	REGMAP_IRQ_REG(BD70528_INT_DCIN1_DET, 5, BD70528_INT_DCIN1_DET_MASK),

	REGMAP_IRQ_REG(BD70528_INT_RTC_ALARM, 6, BD70528_INT_RTC_ALARM_MASK),

	REGMAP_IRQ_REG(BD70528_INT_ELPS_TIM, 6, BD70528_INT_ELPS_TIM_MASK),

	REGMAP_IRQ_REG(BD70528_INT_GPIO0, 7, BD70528_INT_GPIO0_MASK),

	REGMAP_IRQ_REG(BD70528_INT_GPIO1, 7, BD70528_INT_GPIO1_MASK),

	REGMAP_IRQ_REG(BD70528_INT_GPIO2, 7, BD70528_INT_GPIO2_MASK),

	REGMAP_IRQ_REG(BD70528_INT_GPIO3, 7, BD70528_INT_GPIO3_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BUCK1_DVS_OPFAIL, 8,

		       BD70528_INT_BUCK1_DVS_OPFAIL_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BUCK2_DVS_OPFAIL, 8,

		       BD70528_INT_BUCK2_DVS_OPFAIL_MASK),

	REGMAP_IRQ_REG(BD70528_INT_BUCK3_DVS_OPFAIL, 8,

		       BD70528_INT_BUCK3_DVS_OPFAIL_MASK),

	REGMAP_IRQ_REG(BD70528_INT_LED1_VOLT_OPFAIL, 8,

		       BD70528_INT_LED1_VOLT_OPFAIL_MASK),

	REGMAP_IRQ_REG(BD70528_INT_LED2_VOLT_OPFAIL, 8,

		       BD70528_INT_LED2_VOLT_OPFAIL_MASK),

};



static struct regmap_irq_chip bd70528_irq_chip = {

	.name = "bd70528_irq",

	.main_status = BD70528_REG_INT_MAIN,

	.irqs = &bd70528_irqs[0],

	.num_irqs = ARRAY_SIZE(bd70528_irqs),

	.status_base = BD70528_REG_INT_SHDN,

	.mask_base = BD70528_REG_INT_SHDN_MASK,

	.ack_base = BD70528_REG_INT_SHDN,

	.type_base = BD70528_REG_GPIO1_IN,

	.init_ack_masked = true,

	.num_regs = 9,

	.num_main_regs = 1,

	.num_type_reg = 4,

	.sub_reg_offsets = &bd70528_sub_irq_offsets[0],

	.num_main_status_bits = 8,

	.irq_reg_stride = 1,

};



static int bd70528_i2c_probe(struct i2c_client *i2c,

			     const struct i2c_device_id *id)

{

	struct bd70528_data *bd70528;

	struct regmap_irq_chip_data *irq_data;

	int ret, i;



	if (!i2c->irq) {

		dev_err(&i2c->dev, "No IRQ configured\n");

		return -EINVAL;

	}



	bd70528 = devm_kzalloc(&i2c->dev, sizeof(*bd70528), GFP_KERNEL);

	if (!bd70528)

		return -ENOMEM;



	mutex_init(&bd70528->rtc_timer_lock);



	dev_set_drvdata(&i2c->dev, &bd70528->chip);



	bd70528->chip.chip_type = ROHM_CHIP_TYPE_BD70528;

	bd70528->chip.regmap = devm_regmap_init_i2c(i2c, &bd70528_regmap);

	if (IS_ERR(bd70528->chip.regmap)) {

		dev_err(&i2c->dev, "Failed to initialize Regmap\n");

		return PTR_ERR(bd70528->chip.regmap);

	}



	/*

	 * Disallow type setting for all IRQs by default as most of them do not

	 * support setting type.

	 */

	for (i = 0; i < ARRAY_SIZE(bd70528_irqs); i++)

		bd70528_irqs[i].type.types_supported = 0;



	/* Set IRQ typesetting information for GPIO pins 0 - 3 */

	for (i = 0; i < BD70528_NUM_OF_GPIOS; i++) {

		struct regmap_irq_type *type;



		type = &bd70528_irqs[BD70528_INT_GPIO0 + i].type;

		type->type_reg_offset = 2 * i;

		type->type_rising_val = 0x20;

		type->type_falling_val = 0x10;

		type->type_level_high_val = 0x40;

		type->type_level_low_val = 0x50;

		type->types_supported = (IRQ_TYPE_EDGE_BOTH |

				IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW);

	}



	ret = devm_regmap_add_irq_chip(&i2c->dev, bd70528->chip.regmap,

				       i2c->irq, IRQF_ONESHOT, 0,

				       &bd70528_irq_chip, &irq_data);

	if (ret) {

		dev_err(&i2c->dev, "Failed to add IRQ chip\n");

		return ret;

	}

	dev_dbg(&i2c->dev, "Registered %d IRQs for chip\n",

		bd70528_irq_chip.num_irqs);



	/*

	 * BD70528 IRQ controller is not touching the main mask register.

	 * So enable the GPIO block interrupts at main level. We can just leave

	 * them enabled as the IRQ controller should disable IRQs from

	 * sub-registers when IRQ is disabled or freed.

	 */

	ret = regmap_update_bits(bd70528->chip.regmap,

				 BD70528_REG_INT_MAIN_MASK,

				 BD70528_INT_GPIO_MASK, 0);



	ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO,

				   bd70528_mfd_cells,

				   ARRAY_SIZE(bd70528_mfd_cells), NULL, 0,

				   regmap_irq_get_domain(irq_data));

	if (ret)

		dev_err(&i2c->dev, "Failed to create subdevices\n");



	return ret;

}



static const struct of_device_id bd70528_of_match[] = {

	{ .compatible = "rohm,bd70528", },

	{ },

};

MODULE_DEVICE_TABLE(of, bd70528_of_match);



static struct i2c_driver bd70528_drv = {

	.driver = {

		.name = "rohm-bd70528",

		.of_match_table = bd70528_of_match,

	},

	.probe = &bd70528_i2c_probe,

};



module_i2c_driver(bd70528_drv);



MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");

MODULE_DESCRIPTION("ROHM BD70528 Power Management IC driver");

MODULE_LICENSE("GPL");

include/linux/mfd/rohm-bd70528.h

0 → 100644
+408 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-or-later */

/* Copyright (C) 2018 ROHM Semiconductors */



#ifndef __LINUX_MFD_BD70528_H__

#define __LINUX_MFD_BD70528_H__



#include <linux/bits.h>

#include <linux/device.h>

#include <linux/mfd/rohm-generic.h>

#include <linux/regmap.h>



enum {

	BD70528_BUCK1,

	BD70528_BUCK2,

	BD70528_BUCK3,

	BD70528_LDO1,

	BD70528_LDO2,

	BD70528_LDO3,

	BD70528_LED1,

	BD70528_LED2,

};



struct bd70528_data {

	struct rohm_regmap_dev chip;

	struct mutex rtc_timer_lock;

};



#define BD70528_BUCK_VOLTS 17

#define BD70528_BUCK_VOLTS 17

#define BD70528_BUCK_VOLTS 17

#define BD70528_LDO_VOLTS 0x20



#define BD70528_REG_BUCK1_EN	0x0F

#define BD70528_REG_BUCK1_VOLT	0x15

#define BD70528_REG_BUCK2_EN	0x10

#define BD70528_REG_BUCK2_VOLT	0x16

#define BD70528_REG_BUCK3_EN	0x11

#define BD70528_REG_BUCK3_VOLT	0x17

#define BD70528_REG_LDO1_EN	0x1b

#define BD70528_REG_LDO1_VOLT	0x1e

#define BD70528_REG_LDO2_EN	0x1c

#define BD70528_REG_LDO2_VOLT	0x1f

#define BD70528_REG_LDO3_EN	0x1d

#define BD70528_REG_LDO3_VOLT	0x20

#define BD70528_REG_LED_CTRL	0x2b

#define BD70528_REG_LED_VOLT	0x29

#define BD70528_REG_LED_EN	0x2a



/* main irq registers */

#define BD70528_REG_INT_MAIN	0x7E

#define BD70528_REG_INT_MAIN_MASK 0x74



/* 'sub irq' registers */

#define BD70528_REG_INT_SHDN	0x7F

#define BD70528_REG_INT_PWR_FLT	0x80

#define BD70528_REG_INT_VR_FLT	0x81

#define BD70528_REG_INT_MISC	0x82

#define BD70528_REG_INT_BAT1	0x83

#define BD70528_REG_INT_BAT2	0x84

#define BD70528_REG_INT_RTC	0x85

#define BD70528_REG_INT_GPIO	0x86

#define BD70528_REG_INT_OP_FAIL	0x87



#define BD70528_REG_INT_SHDN_MASK	0x75

#define BD70528_REG_INT_PWR_FLT_MASK	0x76

#define BD70528_REG_INT_VR_FLT_MASK	0x77

#define BD70528_REG_INT_MISC_MASK	0x78

#define BD70528_REG_INT_BAT1_MASK	0x79

#define BD70528_REG_INT_BAT2_MASK	0x7a

#define BD70528_REG_INT_RTC_MASK	0x7b

#define BD70528_REG_INT_GPIO_MASK	0x7c

#define BD70528_REG_INT_OP_FAIL_MASK	0x7d



/* Reset related 'magic' registers */

#define BD70528_REG_SHIPMODE	0x03

#define BD70528_REG_HWRESET	0x04

#define BD70528_REG_WARMRESET	0x05

#define BD70528_REG_STANDBY	0x06



/* GPIO registers */

#define BD70528_REG_GPIO_STATE	0x8F



#define BD70528_REG_GPIO1_IN	0x4d

#define BD70528_REG_GPIO2_IN	0x4f

#define BD70528_REG_GPIO3_IN	0x51

#define BD70528_REG_GPIO4_IN	0x53

#define BD70528_REG_GPIO1_OUT	0x4e

#define BD70528_REG_GPIO2_OUT	0x50

#define BD70528_REG_GPIO3_OUT	0x52

#define BD70528_REG_GPIO4_OUT	0x54



/* clk control */



#define BD70528_REG_CLK_OUT	0x2c



/* RTC */



#define BD70528_REG_RTC_COUNT_H		0x2d

#define BD70528_REG_RTC_COUNT_L		0x2e

#define BD70528_REG_RTC_SEC		0x2f

#define BD70528_REG_RTC_MINUTE		0x30

#define BD70528_REG_RTC_HOUR		0x31

#define BD70528_REG_RTC_WEEK		0x32

#define BD70528_REG_RTC_DAY		0x33

#define BD70528_REG_RTC_MONTH		0x34

#define BD70528_REG_RTC_YEAR		0x35



#define BD70528_REG_RTC_ALM_SEC		0x36

#define BD70528_REG_RTC_ALM_START	BD70528_REG_RTC_ALM_SEC

#define BD70528_REG_RTC_ALM_MINUTE	0x37

#define BD70528_REG_RTC_ALM_HOUR	0x38

#define BD70528_REG_RTC_ALM_WEEK	0x39

#define BD70528_REG_RTC_ALM_DAY		0x3a

#define BD70528_REG_RTC_ALM_MONTH	0x3b

#define BD70528_REG_RTC_ALM_YEAR	0x3c

#define BD70528_REG_RTC_ALM_MASK	0x3d

#define BD70528_REG_RTC_ALM_REPEAT	0x3e

#define BD70528_REG_RTC_START		BD70528_REG_RTC_SEC



#define BD70528_REG_RTC_WAKE_SEC	0x43

#define BD70528_REG_RTC_WAKE_START	BD70528_REG_RTC_WAKE_SEC

#define BD70528_REG_RTC_WAKE_MIN	0x44

#define BD70528_REG_RTC_WAKE_HOUR	0x45

#define BD70528_REG_RTC_WAKE_CTRL	0x46



#define BD70528_REG_ELAPSED_TIMER_EN	0x42

#define BD70528_REG_WAKE_EN		0x46



/* WDT registers */

#define BD70528_REG_WDT_CTRL		0x4A

#define BD70528_REG_WDT_HOUR		0x49

#define BD70528_REG_WDT_MINUTE		0x48

#define BD70528_REG_WDT_SEC		0x47



/* Charger / Battery */

#define BD70528_REG_CHG_CURR_STAT	0x59

#define BD70528_REG_CHG_BAT_STAT	0x57

#define BD70528_REG_CHG_BAT_TEMP	0x58

#define BD70528_REG_CHG_IN_STAT		0x56

#define BD70528_REG_CHG_DCIN_ILIM	0x5d

#define BD70528_REG_CHG_CHG_CURR_WARM	0x61

#define BD70528_REG_CHG_CHG_CURR_COLD	0x62



/* Masks for main IRQ register bits */

enum {

	BD70528_INT_SHDN,

#define BD70528_INT_SHDN_MASK BIT(BD70528_INT_SHDN)

	BD70528_INT_PWR_FLT,

#define BD70528_INT_PWR_FLT_MASK BIT(BD70528_INT_PWR_FLT)

	BD70528_INT_VR_FLT,

#define BD70528_INT_VR_FLT_MASK BIT(BD70528_INT_VR_FLT)

	BD70528_INT_MISC,

#define BD70528_INT_MISC_MASK BIT(BD70528_INT_MISC)

	BD70528_INT_BAT1,

#define BD70528_INT_BAT1_MASK BIT(BD70528_INT_BAT1)

	BD70528_INT_RTC,

#define BD70528_INT_RTC_MASK BIT(BD70528_INT_RTC)

	BD70528_INT_GPIO,

#define BD70528_INT_GPIO_MASK BIT(BD70528_INT_GPIO)

	BD70528_INT_OP_FAIL,

#define BD70528_INT_OP_FAIL_MASK BIT(BD70528_INT_OP_FAIL)

};



/* IRQs */

enum {

	/* Shutdown register IRQs */

	BD70528_INT_LONGPUSH,

	BD70528_INT_WDT,

	BD70528_INT_HWRESET,

	BD70528_INT_RSTB_FAULT,

	BD70528_INT_VBAT_UVLO,

	BD70528_INT_TSD,

	BD70528_INT_RSTIN,

	/* Power failure register IRQs */

	BD70528_INT_BUCK1_FAULT,

	BD70528_INT_BUCK2_FAULT,

	BD70528_INT_BUCK3_FAULT,

	BD70528_INT_LDO1_FAULT,

	BD70528_INT_LDO2_FAULT,

	BD70528_INT_LDO3_FAULT,

	BD70528_INT_LED1_FAULT,

	BD70528_INT_LED2_FAULT,

	/* VR FAULT register IRQs */

	BD70528_INT_BUCK1_OCP,

	BD70528_INT_BUCK2_OCP,

	BD70528_INT_BUCK3_OCP,

	BD70528_INT_LED1_OCP,

	BD70528_INT_LED2_OCP,

	BD70528_INT_BUCK1_FULLON,

	BD70528_INT_BUCK2_FULLON,

	/* PMU register interrupts */

	BD70528_INT_SHORTPUSH,

	BD70528_INT_AUTO_WAKEUP,

	BD70528_INT_STATE_CHANGE,

	/* Charger 1 register IRQs */

	BD70528_INT_BAT_OV_RES,

	BD70528_INT_BAT_OV_DET,

	BD70528_INT_DBAT_DET,

	BD70528_INT_BATTSD_COLD_RES,

	BD70528_INT_BATTSD_COLD_DET,

	BD70528_INT_BATTSD_HOT_RES,

	BD70528_INT_BATTSD_HOT_DET,

	BD70528_INT_CHG_TSD,

	/* Charger 2 register IRQs */

	BD70528_INT_BAT_RMV,

	BD70528_INT_BAT_DET,

	BD70528_INT_DCIN2_OV_RES,

	BD70528_INT_DCIN2_OV_DET,

	BD70528_INT_DCIN2_RMV,

	BD70528_INT_DCIN2_DET,

	BD70528_INT_DCIN1_RMV,

	BD70528_INT_DCIN1_DET,

	/* RTC register IRQs */

	BD70528_INT_RTC_ALARM,

	BD70528_INT_ELPS_TIM,

	/* GPIO register IRQs */

	BD70528_INT_GPIO0,

	BD70528_INT_GPIO1,

	BD70528_INT_GPIO2,

	BD70528_INT_GPIO3,

	/* Invalid operation register IRQs */

	BD70528_INT_BUCK1_DVS_OPFAIL,

	BD70528_INT_BUCK2_DVS_OPFAIL,

	BD70528_INT_BUCK3_DVS_OPFAIL,

	BD70528_INT_LED1_VOLT_OPFAIL,

	BD70528_INT_LED2_VOLT_OPFAIL,

};



/* Masks */

#define BD70528_INT_LONGPUSH_MASK 0x1

#define BD70528_INT_WDT_MASK 0x2

#define BD70528_INT_HWRESET_MASK 0x4

#define BD70528_INT_RSTB_FAULT_MASK 0x8

#define BD70528_INT_VBAT_UVLO_MASK 0x10

#define BD70528_INT_TSD_MASK 0x20

#define BD70528_INT_RSTIN_MASK 0x40



#define BD70528_INT_BUCK1_FAULT_MASK 0x1

#define BD70528_INT_BUCK2_FAULT_MASK 0x2

#define BD70528_INT_BUCK3_FAULT_MASK 0x4

#define BD70528_INT_LDO1_FAULT_MASK 0x8

#define BD70528_INT_LDO2_FAULT_MASK 0x10

#define BD70528_INT_LDO3_FAULT_MASK 0x20

#define BD70528_INT_LED1_FAULT_MASK 0x40

#define BD70528_INT_LED2_FAULT_MASK 0x80



#define BD70528_INT_BUCK1_OCP_MASK 0x1

#define BD70528_INT_BUCK2_OCP_MASK 0x2

#define BD70528_INT_BUCK3_OCP_MASK 0x4

#define BD70528_INT_LED1_OCP_MASK 0x8

#define BD70528_INT_LED2_OCP_MASK 0x10

#define BD70528_INT_BUCK1_FULLON_MASK 0x20

#define BD70528_INT_BUCK2_FULLON_MASK 0x40



#define BD70528_INT_SHORTPUSH_MASK 0x1

#define BD70528_INT_AUTO_WAKEUP_MASK 0x2

#define BD70528_INT_STATE_CHANGE_MASK 0x10



#define BD70528_INT_BAT_OV_RES_MASK 0x1

#define BD70528_INT_BAT_OV_DET_MASK 0x2

#define BD70528_INT_DBAT_DET_MASK 0x4

#define BD70528_INT_BATTSD_COLD_RES_MASK 0x8

#define BD70528_INT_BATTSD_COLD_DET_MASK 0x10

#define BD70528_INT_BATTSD_HOT_RES_MASK 0x20

#define BD70528_INT_BATTSD_HOT_DET_MASK 0x40

#define BD70528_INT_CHG_TSD_MASK 0x80



#define BD70528_INT_BAT_RMV_MASK 0x1

#define BD70528_INT_BAT_DET_MASK 0x2

#define BD70528_INT_DCIN2_OV_RES_MASK 0x4

#define BD70528_INT_DCIN2_OV_DET_MASK 0x8

#define BD70528_INT_DCIN2_RMV_MASK 0x10

#define BD70528_INT_DCIN2_DET_MASK 0x20

#define BD70528_INT_DCIN1_RMV_MASK 0x40

#define BD70528_INT_DCIN1_DET_MASK 0x80



#define BD70528_INT_RTC_ALARM_MASK 0x1

#define BD70528_INT_ELPS_TIM_MASK 0x2



#define BD70528_INT_GPIO0_MASK 0x1

#define BD70528_INT_GPIO1_MASK 0x2

#define BD70528_INT_GPIO2_MASK 0x4

#define BD70528_INT_GPIO3_MASK 0x8



#define BD70528_INT_BUCK1_DVS_OPFAIL_MASK 0x1

#define BD70528_INT_BUCK2_DVS_OPFAIL_MASK 0x2

#define BD70528_INT_BUCK3_DVS_OPFAIL_MASK 0x4

#define BD70528_INT_LED1_VOLT_OPFAIL_MASK 0x10

#define BD70528_INT_LED2_VOLT_OPFAIL_MASK 0x20



#define BD70528_DEBOUNCE_MASK 0x3



#define BD70528_DEBOUNCE_DISABLE 0

#define BD70528_DEBOUNCE_15MS 1

#define BD70528_DEBOUNCE_30MS 2

#define BD70528_DEBOUNCE_50MS 3



#define BD70528_GPIO_DRIVE_MASK 0x2

#define BD70528_GPIO_PUSH_PULL 0x0

#define BD70528_GPIO_OPEN_DRAIN 0x2



#define BD70528_GPIO_OUT_EN_MASK 0x80

#define BD70528_GPIO_OUT_ENABLE 0x80

#define BD70528_GPIO_OUT_DISABLE 0x0



#define BD70528_GPIO_OUT_HI 0x1

#define BD70528_GPIO_OUT_LO 0x0

#define BD70528_GPIO_OUT_MASK 0x1



#define BD70528_GPIO_IN_STATE_BASE 1



#define BD70528_CLK_OUT_EN_MASK 0x1



/* RTC masks to mask out reserved bits */



#define BD70528_MASK_RTC_SEC		0x7f

#define BD70528_MASK_RTC_MINUTE		0x7f

#define BD70528_MASK_RTC_HOUR_24H	0x80

#define BD70528_MASK_RTC_HOUR_PM	0x20

#define BD70528_MASK_RTC_HOUR		0x1f

#define BD70528_MASK_RTC_DAY		0x3f

#define BD70528_MASK_RTC_WEEK		0x07

#define BD70528_MASK_RTC_MONTH		0x1f

#define BD70528_MASK_RTC_YEAR		0xff

#define BD70528_MASK_RTC_COUNT_L	0x7f



#define BD70528_MASK_ELAPSED_TIMER_EN	0x1

/* Mask second, min and hour fields

 * HW would support ALM irq for over 24h

 * (by setting day, month and year too)

 * but as we wish to keep this same as for

 * wake-up we limit ALM to 24H and only

 * unmask sec, min and hour

 */

#define BD70528_MASK_ALM_EN		0x7

#define BD70528_MASK_WAKE_EN		0x1



/* WDT masks */

#define BD70528_MASK_WDT_EN		0x1

#define BD70528_MASK_WDT_HOUR		0x1

#define BD70528_MASK_WDT_MINUTE		0x7f

#define BD70528_MASK_WDT_SEC		0x7f



#define BD70528_WDT_STATE_BIT		0x1

#define BD70528_ELAPSED_STATE_BIT	0x2

#define BD70528_WAKE_STATE_BIT		0x4



/* Charger masks */

#define BD70528_MASK_CHG_STAT		0x7f

#define BD70528_MASK_CHG_BAT_TIMER	0x20

#define BD70528_MASK_CHG_BAT_OVERVOLT	0x10

#define BD70528_MASK_CHG_BAT_DETECT	0x1

#define BD70528_MASK_CHG_DCIN1_UVLO	0x1

#define BD70528_MASK_CHG_DCIN_ILIM	0x3f

#define BD70528_MASK_CHG_CHG_CURR	0x1f

#define BD70528_MASK_CHG_TRICKLE_CURR	0x10



/*

 * Note, external battery register is the lonely rider at

 * address 0xc5. See how to stuff that in the regmap

 */

#define BD70528_MAX_REGISTER 0x94



/* Buck control masks */

#define BD70528_MASK_RUN_EN	0x4

#define BD70528_MASK_STBY_EN	0x2

#define BD70528_MASK_IDLE_EN	0x1

#define BD70528_MASK_LED1_EN	0x1

#define BD70528_MASK_LED2_EN	0x10



#define BD70528_MASK_BUCK_VOLT	0xf

#define BD70528_MASK_LDO_VOLT	0x1f

#define BD70528_MASK_LED1_VOLT	0x1

#define BD70528_MASK_LED2_VOLT	0x10



/* Misc irq masks */

#define BD70528_INT_MASK_SHORT_PUSH	1

#define BD70528_INT_MASK_AUTO_WAKE	2

#define BD70528_INT_MASK_POWER_STATE	4



#define BD70528_MASK_BUCK_RAMP 0x10

#define BD70528_SIFT_BUCK_RAMP 4



#if IS_ENABLED(CONFIG_BD70528_WATCHDOG)



int bd70528_wdt_set(struct rohm_regmap_dev *data, int enable, int *old_state);

void bd70528_wdt_lock(struct rohm_regmap_dev *data);

void bd70528_wdt_unlock(struct rohm_regmap_dev *data);



#else /* CONFIG_BD70528_WATCHDOG */



static inline int bd70528_wdt_set(struct rohm_regmap_dev *data, int enable,

				  int *old_state)

{

	return 0;

}



static inline void bd70528_wdt_lock(struct rohm_regmap_dev *data)

{

}



static inline void bd70528_wdt_unlock(struct rohm_regmap_dev *data)

{

}



#endif /* CONFIG_BD70528_WATCHDOG */



#endif /* __LINUX_MFD_BD70528_H__ */

CRA Git | Maintained and supported by SUSTech CRA and CCSE