From: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> To: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>, mazziesaccount@gmail.com Cc: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@kernel.org>, Linus Walleij <linus.walleij@linaro.org>, Bartosz Golaszewski <bgolaszewski@baylibre.com>, Sebastian Reichel <sre@kernel.org>, Liam Girdwood <lgirdwood@gmail.com>, Mark Brown <broonie@kernel.org>, Alessandro Zummo <a.zummo@towertech.it>, Alexandre Belloni <alexandre.belloni@bootlin.com>, Wim Van Sebroeck <wim@linux-watchdog.org>, Guenter Roeck <linux@roeck-us.net>, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org, linux-rtc@vger.kernel.org, linux-watchdog@vger.kernel.org, heikki.haikola@fi.rohmeurope.com, mikko.mutanen@fi.ro Subject: [PATCH v12 2/8] mfd: bd70528: Support ROHM bd70528 PMIC - core Date: Wed, 3 Apr 2019 15:41:32 +0300 [thread overview] Message-ID: <76089cc417ea197174d5772faa252329fa9afb21.1554294791.git.matti.vaittinen@fi.rohmeurope.com> (raw) In-Reply-To: <cover.1554294791.git.matti.vaittinen@fi.rohmeurope.com> 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: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> --- Changelog v12: - No functional changes. - Fixed styling issues pointed by Lee Jones drivers/mfd/Kconfig | 17 ++ drivers/mfd/Makefile | 1 + drivers/mfd/rohm-bd70528.c | 429 +++++++++++++++++++++++++++++++ include/linux/mfd/rohm-bd70528.h | 383 +++++++++++++++++++++++++++ 4 files changed, 830 insertions(+) create mode 100644 drivers/mfd/rohm-bd70528.c create mode 100644 include/linux/mfd/rohm-bd70528.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 0ce2d8dfc5f1..8189e377d0d3 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1866,6 +1866,23 @@ 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 diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index b4569ed7f3f3..dc1c9431c8d9 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -246,4 +246,5 @@ 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_BD718XX) += rohm-bd718x7.o +obj-$(CONFIG_MFD_ROHM_BD70528) += rohm-bd70528.o diff --git a/drivers/mfd/rohm-bd70528.c b/drivers/mfd/rohm-bd70528.c new file mode 100644 index 000000000000..035977fcdf69 --- /dev/null +++ b/drivers/mfd/rohm-bd70528.c @@ -0,0 +1,429 @@ +// 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 WD_CTRL_MAGIC1 0x55 +#define WD_CTRL_MAGIC2 0xAA +#define BD70528_NUM_OF_GPIOS 4 + +struct pmic_data { + struct rohm_regmap_dev chip; + struct mutex rtc_timer_lock; +}; + +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, +}; + +/* + * The BD70528 watch-dog must be disabled when RTC is set. Thus both WDT and + * RTC need to have access to WDT control. We want to allow compiling the + * BD70528 driver without WDT or without the RTC. Thus the common code is here + * and RTC can be compiled in without WDT driver or WDT without RTC. + */ + +/** + * bd70528_wdt_set - arm or disarm watchdog timer + * + * @data: device data for the PMIC instance we want to operate on + * @enable: new state of WDT. zero to disable, non zero to enable + * @old_state: previous state of WDT will be filled here + * + * Arm or disarm WDT on BD70528 PMIC. Expected to be called only by + * BD70528 RTC and BD70528 WDT drivers. The rtc_timer_lock must be taken + * by calling bd70528_wdt_lock before calling bd70528_wdt_set. + */ +int bd70528_wdt_set(struct rohm_regmap_dev *data, int enable, int *old_state) +{ + int ret, i; + unsigned int tmp; + struct pmic_data *bd70528 = container_of(data, struct pmic_data, + chip); + u8 wd_ctrl_arr[3] = { WD_CTRL_MAGIC1, WD_CTRL_MAGIC2, 0 }; + u8 *wd_ctrl = &wd_ctrl_arr[2]; + + ret = regmap_read(bd70528->chip.regmap, BD70528_REG_WDT_CTRL, &tmp); + if (ret) + return ret; + + *wd_ctrl = (u8)tmp; + + if (old_state) { + if (*wd_ctrl & BD70528_MASK_WDT_EN) + *old_state |= BD70528_WDT_STATE_BIT; + else + *old_state &= ~BD70528_WDT_STATE_BIT; + if ((!enable) == (!(*old_state & BD70528_WDT_STATE_BIT))) + return 0; + } + + if (enable) { + if (*wd_ctrl & BD70528_MASK_WDT_EN) + return 0; + *wd_ctrl |= BD70528_MASK_WDT_EN; + } else { + if (*wd_ctrl & BD70528_MASK_WDT_EN) + *wd_ctrl &= ~BD70528_MASK_WDT_EN; + else + return 0; + } + + for (i = 0; i < 3; i++) { + ret = regmap_write(bd70528->chip.regmap, BD70528_REG_WDT_CTRL, + wd_ctrl_arr[i]); + if (ret) + return ret; + } + + ret = regmap_read(bd70528->chip.regmap, BD70528_REG_WDT_CTRL, &tmp); + if ((tmp & BD70528_MASK_WDT_EN) != (*wd_ctrl & BD70528_MASK_WDT_EN)) { + dev_err(bd70528->chip.dev, + "Watchdog ctrl mismatch (hw) 0x%x (set) 0x%x\n", + tmp, *wd_ctrl); + ret = -EIO; + } + + return ret; +} +EXPORT_SYMBOL(bd70528_wdt_set); + +/** + * bd70528_wdt_lock - take WDT lock + * + * @bd70528: device data for the PMIC instance we want to operate on + * + * Lock WDT for arming/disarming in order to avoid race condition caused + * by WDT state changes initiated by WDT and RTC drivers. + */ +void bd70528_wdt_lock(struct rohm_regmap_dev *data) +{ + struct pmic_data *bd70528 = container_of(data, struct pmic_data, + chip); + + mutex_lock(&bd70528->rtc_timer_lock); +} +EXPORT_SYMBOL(bd70528_wdt_lock); + +/** + * bd70528_wdt_unlock - unlock WDT lock + * + * @bd70528: device data for the PMIC instance we want to operate on + * + * Unlock WDT lock which has previously been taken by call to + * bd70528_wdt_lock. + */ +void bd70528_wdt_unlock(struct rohm_regmap_dev *data) +{ + struct pmic_data *bd70528 = container_of(data, struct pmic_data, + chip); + + mutex_unlock(&bd70528->rtc_timer_lock); +} +EXPORT_SYMBOL(bd70528_wdt_unlock); + +static int bd70528_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct pmic_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"); diff --git a/include/linux/mfd/rohm-bd70528.h b/include/linux/mfd/rohm-bd70528.h new file mode 100644 index 000000000000..e9fe2d7a4052 --- /dev/null +++ b/include/linux/mfd/rohm-bd70528.h @@ -0,0 +1,383 @@ +/* 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, +}; + +#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 + +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); + +#endif /* __LINUX_MFD_BD70528_H__ */ -- 2.17.2 -- Matti Vaittinen, Linux device drivers ROHM Semiconductors, Finland SWDC Kiviharjunlenkki 1E 90220 OULU FINLAND ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
WARNING: multiple messages have this Message-ID (diff)
From: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> To: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>, mazziesaccount@gmail.com Cc: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@kernel.org>, Linus Walleij <linus.walleij@linaro.org>, Bartosz Golaszewski <bgolaszewski@baylibre.com>, Sebastian Reichel <sre@kernel.org>, Liam Girdwood <lgirdwood@gmail.com>, Mark Brown <broonie@kernel.org>, Alessandro Zummo <a.zummo@towertech.it>, Alexandre Belloni <alexandre.belloni@bootlin.com>, Wim Van Sebroeck <wim@linux-watchdog.org>, Guenter Roeck <linux@roeck-us.net>, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org, linux-rtc@vger.kernel.org, linux-watchdog@vger.kernel.org, heikki.haikola@fi.rohmeurope.com, mikko.mutanen@fi.rohmeurope.com Subject: [PATCH v12 2/8] mfd: bd70528: Support ROHM bd70528 PMIC - core Date: Wed, 3 Apr 2019 15:41:32 +0300 [thread overview] Message-ID: <76089cc417ea197174d5772faa252329fa9afb21.1554294791.git.matti.vaittinen@fi.rohmeurope.com> (raw) In-Reply-To: <cover.1554294791.git.matti.vaittinen@fi.rohmeurope.com> 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: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> --- Changelog v12: - No functional changes. - Fixed styling issues pointed by Lee Jones drivers/mfd/Kconfig | 17 ++ drivers/mfd/Makefile | 1 + drivers/mfd/rohm-bd70528.c | 429 +++++++++++++++++++++++++++++++ include/linux/mfd/rohm-bd70528.h | 383 +++++++++++++++++++++++++++ 4 files changed, 830 insertions(+) create mode 100644 drivers/mfd/rohm-bd70528.c create mode 100644 include/linux/mfd/rohm-bd70528.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 0ce2d8dfc5f1..8189e377d0d3 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1866,6 +1866,23 @@ 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 diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index b4569ed7f3f3..dc1c9431c8d9 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -246,4 +246,5 @@ 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-$(CONFIG_MFD_ROHM_BD718XX) += rohm-bd718x7.o +obj-$(CONFIG_MFD_ROHM_BD70528) += rohm-bd70528.o diff --git a/drivers/mfd/rohm-bd70528.c b/drivers/mfd/rohm-bd70528.c new file mode 100644 index 000000000000..035977fcdf69 --- /dev/null +++ b/drivers/mfd/rohm-bd70528.c @@ -0,0 +1,429 @@ +// 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 WD_CTRL_MAGIC1 0x55 +#define WD_CTRL_MAGIC2 0xAA +#define BD70528_NUM_OF_GPIOS 4 + +struct pmic_data { + struct rohm_regmap_dev chip; + struct mutex rtc_timer_lock; +}; + +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, +}; + +/* + * The BD70528 watch-dog must be disabled when RTC is set. Thus both WDT and + * RTC need to have access to WDT control. We want to allow compiling the + * BD70528 driver without WDT or without the RTC. Thus the common code is here + * and RTC can be compiled in without WDT driver or WDT without RTC. + */ + +/** + * bd70528_wdt_set - arm or disarm watchdog timer + * + * @data: device data for the PMIC instance we want to operate on + * @enable: new state of WDT. zero to disable, non zero to enable + * @old_state: previous state of WDT will be filled here + * + * Arm or disarm WDT on BD70528 PMIC. Expected to be called only by + * BD70528 RTC and BD70528 WDT drivers. The rtc_timer_lock must be taken + * by calling bd70528_wdt_lock before calling bd70528_wdt_set. + */ +int bd70528_wdt_set(struct rohm_regmap_dev *data, int enable, int *old_state) +{ + int ret, i; + unsigned int tmp; + struct pmic_data *bd70528 = container_of(data, struct pmic_data, + chip); + u8 wd_ctrl_arr[3] = { WD_CTRL_MAGIC1, WD_CTRL_MAGIC2, 0 }; + u8 *wd_ctrl = &wd_ctrl_arr[2]; + + ret = regmap_read(bd70528->chip.regmap, BD70528_REG_WDT_CTRL, &tmp); + if (ret) + return ret; + + *wd_ctrl = (u8)tmp; + + if (old_state) { + if (*wd_ctrl & BD70528_MASK_WDT_EN) + *old_state |= BD70528_WDT_STATE_BIT; + else + *old_state &= ~BD70528_WDT_STATE_BIT; + if ((!enable) == (!(*old_state & BD70528_WDT_STATE_BIT))) + return 0; + } + + if (enable) { + if (*wd_ctrl & BD70528_MASK_WDT_EN) + return 0; + *wd_ctrl |= BD70528_MASK_WDT_EN; + } else { + if (*wd_ctrl & BD70528_MASK_WDT_EN) + *wd_ctrl &= ~BD70528_MASK_WDT_EN; + else + return 0; + } + + for (i = 0; i < 3; i++) { + ret = regmap_write(bd70528->chip.regmap, BD70528_REG_WDT_CTRL, + wd_ctrl_arr[i]); + if (ret) + return ret; + } + + ret = regmap_read(bd70528->chip.regmap, BD70528_REG_WDT_CTRL, &tmp); + if ((tmp & BD70528_MASK_WDT_EN) != (*wd_ctrl & BD70528_MASK_WDT_EN)) { + dev_err(bd70528->chip.dev, + "Watchdog ctrl mismatch (hw) 0x%x (set) 0x%x\n", + tmp, *wd_ctrl); + ret = -EIO; + } + + return ret; +} +EXPORT_SYMBOL(bd70528_wdt_set); + +/** + * bd70528_wdt_lock - take WDT lock + * + * @bd70528: device data for the PMIC instance we want to operate on + * + * Lock WDT for arming/disarming in order to avoid race condition caused + * by WDT state changes initiated by WDT and RTC drivers. + */ +void bd70528_wdt_lock(struct rohm_regmap_dev *data) +{ + struct pmic_data *bd70528 = container_of(data, struct pmic_data, + chip); + + mutex_lock(&bd70528->rtc_timer_lock); +} +EXPORT_SYMBOL(bd70528_wdt_lock); + +/** + * bd70528_wdt_unlock - unlock WDT lock + * + * @bd70528: device data for the PMIC instance we want to operate on + * + * Unlock WDT lock which has previously been taken by call to + * bd70528_wdt_lock. + */ +void bd70528_wdt_unlock(struct rohm_regmap_dev *data) +{ + struct pmic_data *bd70528 = container_of(data, struct pmic_data, + chip); + + mutex_unlock(&bd70528->rtc_timer_lock); +} +EXPORT_SYMBOL(bd70528_wdt_unlock); + +static int bd70528_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct pmic_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"); diff --git a/include/linux/mfd/rohm-bd70528.h b/include/linux/mfd/rohm-bd70528.h new file mode 100644 index 000000000000..e9fe2d7a4052 --- /dev/null +++ b/include/linux/mfd/rohm-bd70528.h @@ -0,0 +1,383 @@ +/* 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, +}; + +#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 + +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); + +#endif /* __LINUX_MFD_BD70528_H__ */ -- 2.17.2 -- Matti Vaittinen, Linux device drivers ROHM Semiconductors, Finland SWDC Kiviharjunlenkki 1E 90220 OULU FINLAND ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
next prev parent reply other threads:[~2019-04-03 12:41 UTC|newest] Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-04-03 12:37 [PATCH v12 0/8] support ROHM BD70528 PMIC Matti Vaittinen 2019-04-03 12:37 ` Matti Vaittinen 2019-04-03 12:38 ` [PATCH v12 1/8] mfd: regulator: clk: split rohm-bd718x7.h Matti Vaittinen 2019-04-03 12:38 ` Matti Vaittinen 2019-04-03 12:41 ` Matti Vaittinen [this message] 2019-04-03 12:41 ` [PATCH v12 2/8] mfd: bd70528: Support ROHM bd70528 PMIC - core Matti Vaittinen 2019-04-03 12:42 ` [PATCH v12 3/8] clk: bd718x7: Support ROHM BD70528 clk block Matti Vaittinen 2019-04-03 12:42 ` Matti Vaittinen 2019-04-03 12:44 ` [PATCH v12 4/8] dt-bindings: mfd: Document first ROHM BD70528 bindings Matti Vaittinen 2019-04-03 12:44 ` Matti Vaittinen 2019-04-03 12:46 ` [PATCH v12 5/8] gpio: Initial support for ROHM bd70528 GPIO block Matti Vaittinen 2019-04-03 12:46 ` Matti Vaittinen 2019-04-03 12:48 ` [PATCH v12 6/8] rtc: bd70528: Initial support for ROHM bd70528 RTC Matti Vaittinen 2019-04-03 12:48 ` Matti Vaittinen 2019-04-03 12:48 ` [PATCH v12 7/8] power: supply: Initial support for ROHM BD70528 PMIC charger block Matti Vaittinen 2019-04-03 12:48 ` Matti Vaittinen 2019-04-03 12:49 ` [PATCH v12 8/8] watchdog: bd70528: Initial support for ROHM BD70528 watchdog block Matti Vaittinen 2019-04-03 12:49 ` Matti Vaittinen
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