diff options
| -rw-r--r-- | drivers/mfd/Kconfig | 13 | ||||
| -rw-r--r-- | drivers/mfd/Makefile | 1 | ||||
| -rw-r--r-- | drivers/mfd/max77686-irq.c | 309 | ||||
| -rw-r--r-- | drivers/mfd/max77686.c | 156 | ||||
| -rw-r--r-- | include/linux/mfd/max77686-private.h | 247 | ||||
| -rw-r--r-- | include/linux/mfd/max77686.h | 117 |
6 files changed, 843 insertions, 0 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index e129c820df7..a7d0c851afc 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -422,6 +422,19 @@ config PMIC_ADP5520 individual components like LCD backlight, LEDs, GPIOs and Kepad under the corresponding menus. +config MFD_MAX77686 + bool "Maxim Semiconductor MAX77686 PMIC Support" + depends on I2C=y && GENERIC_HARDIRQS + select MFD_CORE + select REGMAP_I2C + select IRQ_DOMAIN + help + Say yes here to support for Maxim Semiconductor MAX77686. + This is a Power Management IC with RTC on chip. + This driver provides common support for accessing the device; + additional drivers must be enabled in order to use the functionality + of the device. + config MFD_MAX77693 bool "Maxim Semiconductor MAX77693 PMIC Support" depends on I2C=y && GENERIC_HARDIRQS diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 75f6ed68a4b..8ee7a3bf595 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -78,6 +78,7 @@ obj-$(CONFIG_PMIC_DA9052) += da9052-core.o obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o +obj-$(CONFIG_MFD_MAX77686) += max77686.o max77686-irq.o obj-$(CONFIG_MFD_MAX77693) += max77693.o max77693-irq.o max8925-objs := max8925-core.o max8925-i2c.o obj-$(CONFIG_MFD_MAX8925) += max8925.o diff --git a/drivers/mfd/max77686-irq.c b/drivers/mfd/max77686-irq.c new file mode 100644 index 00000000000..fc101220f99 --- /dev/null +++ b/drivers/mfd/max77686-irq.c @@ -0,0 +1,309 @@ +/* + * max77686-irq.c - Interrupt controller support for MAX77686 + * + * Copyright (C) 2012 Samsung Electronics Co.Ltd + * Chiwoong Byun <woong.byun@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * This driver is based on max8997-irq.c + */ + +#include <linux/err.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <linux/gpio.h> +#include <linux/mfd/max77686.h> +#include <linux/mfd/max77686-private.h> +#include <linux/irqdomain.h> +#include <linux/regmap.h> + +enum { + MAX77686_DEBUG_IRQ_INFO = 1 << 0, + MAX77686_DEBUG_IRQ_MASK = 1 << 1, + MAX77686_DEBUG_IRQ_INT = 1 << 2, +}; + +static int debug_mask = 0; +module_param(debug_mask, int, 0); +MODULE_PARM_DESC(debug_mask, "Set debug_mask : 0x0=off 0x1=IRQ_INFO 0x2=IRQ_MASK 0x4=IRQ_INI)"); + +static const u8 max77686_mask_reg[] = { + [PMIC_INT1] = MAX77686_REG_INT1MSK, + [PMIC_INT2] = MAX77686_REG_INT2MSK, + [RTC_INT] = MAX77686_RTC_INTM, +}; + +static struct regmap *max77686_get_regmap(struct max77686_dev *max77686, + enum max77686_irq_source src) +{ + switch (src) { + case PMIC_INT1 ... PMIC_INT2: + return max77686->regmap; + case RTC_INT: + return max77686->rtc_regmap; + default: + return ERR_PTR(-EINVAL); + } +} + +struct max77686_irq_data { + int mask; + enum max77686_irq_source group; +}; + +#define DECLARE_IRQ(idx, _group, _mask) \ + [(idx)] = { .group = (_group), .mask = (_mask) } +static const struct max77686_irq_data max77686_irqs[] = { + DECLARE_IRQ(MAX77686_PMICIRQ_PWRONF, PMIC_INT1, 1 << 0), + DECLARE_IRQ(MAX77686_PMICIRQ_PWRONR, PMIC_INT1, 1 << 1), + DECLARE_IRQ(MAX77686_PMICIRQ_JIGONBF, PMIC_INT1, 1 << 2), + DECLARE_IRQ(MAX77686_PMICIRQ_JIGONBR, PMIC_INT1, 1 << 3), + DECLARE_IRQ(MAX77686_PMICIRQ_ACOKBF, PMIC_INT1, 1 << 4), + DECLARE_IRQ(MAX77686_PMICIRQ_ACOKBR, PMIC_INT1, 1 << 5), + DECLARE_IRQ(MAX77686_PMICIRQ_ONKEY1S, PMIC_INT1, 1 << 6), + DECLARE_IRQ(MAX77686_PMICIRQ_MRSTB, PMIC_INT1, 1 << 7), + DECLARE_IRQ(MAX77686_PMICIRQ_140C, PMIC_INT2, 1 << 0), + DECLARE_IRQ(MAX77686_PMICIRQ_120C, PMIC_INT2, 1 << 1), + DECLARE_IRQ(MAX77686_RTCIRQ_RTC60S, RTC_INT, 1 << 0), + DECLARE_IRQ(MAX77686_RTCIRQ_RTCA1, RTC_INT, 1 << 1), + DECLARE_IRQ(MAX77686_RTCIRQ_RTCA2, RTC_INT, 1 << 2), + DECLARE_IRQ(MAX77686_RTCIRQ_SMPL, RTC_INT, 1 << 3), + DECLARE_IRQ(MAX77686_RTCIRQ_RTC1S, RTC_INT, 1 << 4), + DECLARE_IRQ(MAX77686_RTCIRQ_WTSR, RTC_INT, 1 << 5), +}; + +static void max77686_irq_lock(struct irq_data *data) +{ + struct max77686_dev *max77686 = irq_get_chip_data(data->irq); + + if (debug_mask & MAX77686_DEBUG_IRQ_MASK) + pr_info("%s\n", __func__); + + mutex_lock(&max77686->irqlock); +} + +static void max77686_irq_sync_unlock(struct irq_data *data) +{ + struct max77686_dev *max77686 = irq_get_chip_data(data->irq); + int i; + + for (i = 0; i < MAX77686_IRQ_GROUP_NR; i++) { + u8 mask_reg = max77686_mask_reg[i]; + struct regmap *map = max77686_get_regmap(max77686, i); + + if (debug_mask & MAX77686_DEBUG_IRQ_MASK) + pr_debug("%s: mask_reg[%d]=0x%x, cur=0x%x\n", + __func__, i, mask_reg, max77686->irq_masks_cur[i]); + + if (mask_reg == MAX77686_REG_INVALID || + IS_ERR_OR_NULL(map)) + continue; + + max77686->irq_masks_cache[i] = max77686->irq_masks_cur[i]; + + regmap_write(map, max77686_mask_reg[i], + max77686->irq_masks_cur[i]); + } + + mutex_unlock(&max77686->irqlock); +} + +static const inline struct max77686_irq_data *to_max77686_irq(int irq) +{ + struct irq_data *data = irq_get_irq_data(irq); + return &max77686_irqs[data->hwirq]; +} + +static void max77686_irq_mask(struct irq_data *data) +{ + struct max77686_dev *max77686 = irq_get_chip_data(data->irq); + const struct max77686_irq_data *irq_data = to_max77686_irq(data->irq); + + max77686->irq_masks_cur[irq_data->group] |= irq_data->mask; + + if (debug_mask & MAX77686_DEBUG_IRQ_MASK) + pr_info("%s: group=%d, cur=0x%x\n", + __func__, irq_data->group, + max77686->irq_masks_cur[irq_data->group]); +} + +static void max77686_irq_unmask(struct irq_data *data) +{ + struct max77686_dev *max77686 = irq_get_chip_data(data->irq); + const struct max77686_irq_data *irq_data = to_max77686_irq(data->irq); + + max77686->irq_masks_cur[irq_data->group] &= ~irq_data->mask; + + if (debug_mask & MAX77686_DEBUG_IRQ_MASK) + pr_info("%s: group=%d, cur=0x%x\n", + __func__, irq_data->group, + max77686->irq_masks_cur[irq_data->group]); +} + +static struct irq_chip max77686_irq_chip = { + .name = "max77686", + .irq_bus_lock = max77686_irq_lock, + .irq_bus_sync_unlock = max77686_irq_sync_unlock, + .irq_mask = max77686_irq_mask, + .irq_unmask = max77686_irq_unmask, +}; + +static irqreturn_t max77686_irq_thread(int irq, void *data) +{ + struct max77686_dev *max77686 = data; + unsigned int irq_reg[MAX77686_IRQ_GROUP_NR] = {}; + unsigned int irq_src; + int ret; + int i, cur_irq; + + ret = regmap_read(max77686->regmap, MAX77686_REG_INTSRC, &irq_src); + if (ret < 0) { + dev_err(max77686->dev, "Failed to read interrupt source: %d\n", + ret); + return IRQ_NONE; + } + + if (debug_mask & MAX77686_DEBUG_IRQ_INT) + pr_info("%s: irq_src=0x%x\n", __func__, irq_src); + + if (irq_src == MAX77686_IRQSRC_PMIC) { + ret = regmap_bulk_read(max77686->rtc_regmap, + MAX77686_REG_INT1, irq_reg, 2); + if (ret < 0) { + dev_err(max77686->dev, "Failed to read interrupt source: %d\n", + ret); + return IRQ_NONE; + } + + if (debug_mask & MAX77686_DEBUG_IRQ_INT) + pr_info("%s: int1=0x%x, int2=0x%x\n", __func__, + irq_reg[PMIC_INT1], irq_reg[PMIC_INT2]); + } + + if (irq_src & MAX77686_IRQSRC_RTC) { + ret = regmap_read(max77686->rtc_regmap, + MAX77686_RTC_INT, &irq_reg[RTC_INT]); + if (ret < 0) { + dev_err(max77686->dev, "Failed to read interrupt source: %d\n", + ret); + return IRQ_NONE; + } + + if (debug_mask & MAX77686_DEBUG_IRQ_INT) + pr_info("%s: rtc int=0x%x\n", __func__, + irq_reg[RTC_INT]); + + } + + for (i = 0; i < MAX77686_IRQ_NR; i++) { + if (irq_reg[max77686_irqs[i].group] & max77686_irqs[i].mask) { + cur_irq = irq_find_mapping(max77686->irq_domain, i); + if (cur_irq) + handle_nested_irq(cur_irq); + } + } + + return IRQ_HANDLED; +} + +static int max77686_irq_domain_map(struct irq_domain *d, unsigned int irq, + irq_hw_number_t hw) +{ + struct max77686_dev *max77686 = d->host_data; + + irq_set_chip_data(irq, max77686); + irq_set_chip_and_handler(irq, &max77686_irq_chip, handle_edge_irq); + irq_set_nested_thread(irq, 1); +#ifdef CONFIG_ARM + set_irq_flags(irq, IRQF_VALID); +#else + irq_set_noprobe(irq); +#endif + return 0; +} + +static struct irq_domain_ops max77686_irq_domain_ops = { + .map = max77686_irq_domain_map, +}; + +int max77686_irq_init(struct max77686_dev *max77686) +{ + struct irq_domain *domain; + int i; + int ret; + int val; + struct regmap *map; + + mutex_init(&max77686->irqlock); + + max77686->irq = gpio_to_irq(max77686->irq_gpio); + + if (debug_mask & MAX77686_DEBUG_IRQ_INT) { + ret = gpio_request(max77686->irq_gpio, "pmic_irq"); + if (ret < 0) { + dev_err(max77686->dev, + "Failed to request gpio %d with ret: %d\n", + max77686->irq_gpio, ret); + return IRQ_NONE; + } + + gpio_direction_input(max77686->irq_gpio); + val = gpio_get_value(max77686->irq_gpio); + gpio_free(max77686->irq_gpio); + pr_info("%s: gpio_irq=%x\n", __func__, val); + } + + /* Mask individual interrupt sources */ + for (i = 0; i < MAX77686_IRQ_GROUP_NR; i++) { + max77686->irq_masks_cur[i] = 0xff; + max77686->irq_masks_cache[i] = 0xff; + map = max77686_get_regmap(max77686, i); + + if (IS_ERR_OR_NULL(map)) + continue; + if (max77686_mask_reg[i] == MAX77686_REG_INVALID) + continue; + + regmap_write(map, max77686_mask_reg[i], 0xff); + } + domain = irq_domain_add_linear(NULL, MAX77686_IRQ_NR, + &max77686_irq_domain_ops, max77686); + if (!domain) { + dev_err(max77686->dev, "could not create irq domain\n"); + return -ENODEV; + } + max77686->irq_domain = domain; + + ret = request_threaded_irq(max77686->irq, NULL, max77686_irq_thread, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + "max77686-irq", max77686); + + if (ret) + dev_err(max77686->dev, "Failed to request IRQ %d: %d\n", + max77686->irq, ret); + + + if (debug_mask & MAX77686_DEBUG_IRQ_INFO) + pr_info("%s-\n", __func__); + + return 0; +} + +void max77686_irq_exit(struct max77686_dev *max77686) +{ + if (max77686->irq) + free_irq(max77686->irq, max77686); +} diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c new file mode 100644 index 00000000000..11e56017e0b --- /dev/null +++ b/drivers/mfd/max77686.c @@ -0,0 +1,156 @@ +/* + * max77686.c - mfd core driver for the Maxim 77686 + * + * Copyright (C) 2012 Samsung Electronics + * Chiwoong Byun <woong.byun@smasung.com> + * Jonghwa Lee <jonghwa3.lee@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * This driver is based on max8997.c + */ + +#include <linux/export.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/pm_runtime.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/mfd/core.h> +#include <linux/mfd/max77686.h> +#include <linux/mfd/max77686-private.h> +#include <linux/err.h> + +#define I2C_ADDR_RTC (0x0C >> 1) + +static struct mfd_cell max77686_devs[] = { + { .name = "max77686-pmic", }, + { .name = "max77686-rtc", }, +}; + +static struct regmap_config max77686_regmap_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int max77686_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct max77686_dev *max77686; + struct max77686_platform_data *pdata = i2c->dev.platform_data; + unsigned int data; + int ret = 0; + + max77686 = kzalloc(sizeof(struct max77686_dev), GFP_KERNEL); + if (max77686 == NULL) + return -ENOMEM; + + max77686->regmap = regmap_init_i2c(i2c, &max77686_regmap_config); + if (IS_ERR(max77686->regmap)) { + ret = PTR_ERR(max77686->regmap); + dev_err(max77686->dev, "Failed to allocate register map: %d\n", + ret); + kfree(max77686); + return ret; + } + + i2c_set_clientdata(i2c, max77686); + max77686->dev = &i2c->dev; + max77686->i2c = i2c; + max77686->type = id->driver_data; + + if (!pdata) { + ret = -EIO; + goto err; + } + + max77686->wakeup = pdata->wakeup; + max77686->irq_gpio = pdata->irq_gpio; + + mutex_init(&max77686->iolock); + + if (regmap_read(max77686->regmap, + MAX77686_REG_DEVICE_ID, &data) < 0) { + dev_err(max77686->dev, + "device not found on this channel (this is not an error)\n"); + ret = -ENODEV; + goto err; + } else + dev_info(max77686->dev, "device found\n"); + + max77686->rtc = i2c_new_dummy(i2c->adapter, I2C_ADDR_RTC); + i2c_set_clientdata(max77686->rtc, max77686); + + max77686_irq_init(max77686); + + ret = mfd_add_devices(max77686->dev, -1, max77686_devs, + ARRAY_SIZE(max77686_devs), NULL, 0); + + if (ret < 0) + goto err_mfd; + + return ret; + +err_mfd: + mfd_remove_devices(max77686->dev); + i2c_unregister_device(max77686->rtc); +err: + kfree(max77686); + return ret; +} + +static int max77686_i2c_remove(struct i2c_client *i2c) +{ + struct max77686_dev *max77686 = i2c_get_clientdata(i2c); + + mfd_remove_devices(max77686->dev); + i2c_unregister_device(max77686->rtc); + kfree(max77686); + + return 0; +} + +static const struct i2c_device_id max77686_i2c_id[] = { + { "max77686", TYPE_MAX77686 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, max77686_i2c_id); + +static struct i2c_driver max77686_i2c_driver = { + .driver = { + .name = "max77686", + .owner = THIS_MODULE, + }, + .probe = max77686_i2c_probe, + .remove = max77686_i2c_remove, + .id_table = max77686_i2c_id, +}; + +static int __init max77686_i2c_init(void) +{ + return i2c_add_driver(&max77686_i2c_driver); +} +/* init early so consumer devices can complete system boot */ +subsys_initcall(max77686_i2c_init); + +static void __exit max77686_i2c_exit(void) +{ + i2c_del_driver(&max77686_i2c_driver); +} +module_exit(max77686_i2c_exit); + +MODULE_DESCRIPTION("MAXIM 77686 multi-function core driver"); +MODULE_AUTHOR("Chiwoong Byun <woong.byun@samsung.com>"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/max77686-private.h b/include/linux/mfd/max77686-private.h new file mode 100644 index 00000000000..962f65e72b7 --- /dev/null +++ b/include/linux/mfd/max77686-private.h @@ -0,0 +1,247 @@ +/* + * max77686.h - Voltage regulator driver for the Maxim 77686 + * + * Copyright (C) 2012 Samsung Electrnoics + * Chiwoong Byun <woong.byun@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __LINUX_MFD_MAX77686_PRIV_H +#define __LINUX_MFD_MAX77686_PRIV_H + +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/module.h> + +#define MAX77686_REG_INVALID (0xff) + +enum max77686_pmic_reg { + MAX77686_REG_DEVICE_ID = 0x00, + MAX77686_REG_INTSRC = 0x01, + MAX77686_REG_INT1 = 0x02, + MAX77686_REG_INT2 = 0x03, + + MAX77686_REG_INT1MSK = 0x04, + MAX77686_REG_INT2MSK = 0x05, + + MAX77686_REG_STATUS1 = 0x06, + MAX77686_REG_STATUS2 = 0x07, + + MAX77686_REG_PWRON = 0x08, + MAX77686_REG_ONOFF_DELAY = 0x09, + MAX77686_REG_MRSTB = 0x0A, + /* Reserved: 0x0B-0x0F */ + + MAX77686_REG_BUCK1CTRL = 0x10, + MAX77686_REG_BUCK1OUT = 0x11, + MAX77686_REG_BUCK2CTRL1 = 0x12, + MAX77686_REG_BUCK234FREQ = 0x13, + MAX77686_REG_BUCK2DVS1 = 0x14, + MAX77686_REG_BUCK2DVS2 = 0x15, + MAX77686_REG_BUCK2DVS3 = 0x16, + MAX77686_REG_BUCK2DVS4 = 0x17, + MAX77686_REG_BUCK2DVS5 = 0x18, + MAX77686_REG_BUCK2DVS6 = 0x19, + MAX77686_REG_BUCK2DVS7 = 0x1A, + MAX77686_REG_BUCK2DVS8 = 0x1B, + MAX77686_REG_BUCK3CTRL1 = 0x1C, + /* Reserved: 0x1D */ + MAX77686_REG_BUCK3DVS1 = 0x1E, + MAX77686_REG_BUCK3DVS2 = 0x1F, + MAX77686_REG_BUCK3DVS3 = 0x20, + MAX77686_REG_BUCK3DVS4 = 0x21, + MAX77686_REG_BUCK3DVS5 = 0x22, + MAX77686_REG_BUCK3DVS6 = 0x23, + MAX77686_REG_BUCK3DVS7 = 0x24, + MAX77686_REG_BUCK3DVS8 = 0x25, + MAX77686_REG_BUCK4CTRL1 = 0x26, + /* Reserved: 0x27 */ + MAX77686_REG_BUCK4DVS1 = 0x28, + MAX77686_REG_BUCK4DVS2 = 0x29, + MAX77686_REG_BUCK4DVS3 = 0x2A, + MAX77686_REG_BUCK4DVS4 = 0x2B, + MAX77686_REG_BUCK4DVS5 = 0x2C, + MAX77686_REG_BUCK4DVS6 = 0x2D, + MAX77686_REG_BUCK4DVS7 = 0x2E, + MAX77686_REG_BUCK4DVS8 = 0x2F, + MAX77686_REG_BUCK5CTRL = 0x30, + MAX77686_REG_BUCK5OUT = 0x31, + MAX77686_REG_BUCK6CTRL = 0x32, + MAX77686_REG_BUCK6OUT = 0x33, + MAX77686_REG_BUCK7CTRL = 0x34, + MAX77686_REG_BUCK7OUT = 0x35, + MAX77686_REG_BUCK8CTRL = 0x36, + MAX77686_REG_BUCK8OUT = 0x37, + MAX77686_REG_BUCK9CTRL = 0x38, + MAX77686_REG_BUCK9OUT = 0x39, + /* Reserved: 0x3A-0x3F */ + + MAX77686_REG_LDO1CTRL1 = 0x40, + MAX77686_REG_LDO2CTRL1 = 0x41, + MAX77686_REG_LDO3CTRL1 = 0x42, + MAX77686_REG_LDO4CTRL1 = 0x43, + MAX77686_REG_LDO5CTRL1 = 0x44, + MAX77686_REG_LDO6CTRL1 = 0x45, + MAX77686_REG_LDO7CTRL1 = 0x46, + MAX77686_REG_LDO8CTRL1 = 0x47, + MAX77686_REG_LDO9CTRL1 = 0x48, + MAX77686_REG_LDO10CTRL1 = 0x49, + MAX77686_REG_LDO11CTRL1 = 0x4A, + MAX77686_REG_LDO12CTRL1 = 0x4B, + MAX77686_REG_LDO13CTRL1 = 0x4C, + MAX77686_REG_LDO14CTRL1 = 0x4D, + MAX77686_REG_LDO15CTRL1 = 0x4E, + MAX77686_REG_LDO16CTRL1 = 0x4F, + MAX77686_REG_LDO17CTRL1 = 0x50, + MAX77686_REG_LDO18CTRL1 = 0x51, + MAX77686_REG_LDO19CTRL1 = 0x52, + MAX77686_REG_LDO20CTRL1 = 0x53, + MAX77686_REG_LDO21CTRL1 = 0x54, + MAX77686_REG_LDO22CTRL1 = 0x55, + MAX77686_REG_LDO23CTRL1 = 0x56, + MAX77686_REG_LDO24CTRL1 = 0x57, + MAX77686_REG_LDO25CTRL1 = 0x58, + MAX77686_REG_LDO26CTRL1 = 0x59, + /* Reserved: 0x5A-0x5F */ + MAX77686_REG_LDO1CTRL2 = 0x60, + MAX77686_REG_LDO2CTRL2 = 0x61, + MAX77686_REG_LDO3CTRL2 = 0x62, + MAX77686_REG_LDO4CTRL2 = 0x63, + MAX77686_REG_LDO5CTRL2 = 0x64, + MAX77686_REG_LDO6CTRL2 = 0x65, + MAX77686_REG_LDO7CTRL2 = 0x66, + MAX77686_REG_LDO8CTRL2 = 0x67, + MAX77686_REG_LDO9CTRL2 = 0x68, + MAX77686_REG_LDO10CTRL2 = 0x69, + MAX77686_REG_LDO11CTRL2 = 0x6A, + MAX77686_REG_LDO12CTRL2 = 0x6B, + MAX77686_REG_LDO13CTRL2 = 0x6C, + MAX77686_REG_LDO14CTRL2 = 0x6D, + MAX77686_REG_LDO15CTRL2 = 0x6E, + MAX77686_REG_LDO16CTRL2 = 0x6F, + MAX77686_REG_LDO17CTRL2 = 0x70, + MAX77686_REG_LDO18CTRL2 = 0x71, + MAX77686_REG_LDO19CTRL2 = 0x72, + MAX77686_REG_LDO20CTRL2 = 0x73, + MAX77686_REG_LDO21CTRL2 = 0x74, + MAX77686_REG_LDO22CTRL2 = 0x75, + MAX77686_REG_LDO23CTRL2 = 0x76, + MAX77686_REG_LDO24CTRL2 = 0x77, + MAX77686_REG_LDO25CTRL2 = 0x78, + MAX77686_REG_LDO26CTRL2 = 0x79, + /* Reserved: 0x7A-0x7D */ + + MAX77686_REG_BBAT_CHG = 0x7E, + MAX77686_REG_32KHZ = 0x7F, + + MAX77686_REG_PMIC_END = 0x80, +}; + +enum max77686_rtc_reg { + MAX77686_RTC_INT = 0x00, + MAX77686_RTC_INTM = 0x01, + MAX77686_RTC_CONTROLM = 0x02, + MAX77686_RTC_CONTROL = 0x03, + MAX77686_RTC_UPDATE0 = 0x04, + /* Reserved: 0x5 */ + MAX77686_WTSR_SMPL_CNTL = 0x06, + MAX77686_RTC_SEC = 0x07, + MAX77686_RTC_MIN = 0x08, + MAX77686_RTC_HOUR = 0x09, + MAX77686_RTC_WEEKDAY = 0x0A, + MAX77686_RTC_MONTH = 0x0B, + MAX77686_RTC_YEAR = 0x0C, + MAX77686_RTC_DATE = 0x0D, + MAX77686_ALARM1_SEC = 0x0E, + MAX77686_ALARM1_MIN = 0x0F, + MAX77686_ALARM1_HOUR = 0x10, + MAX77686_ALARM1_WEEKDAY = 0x11, + MAX77686_ALARM1_MONTH = 0x12, + MAX77686_ALARM1_YEAR = 0x13, + MAX77686_ALARM1_DATE = 0x14, + MAX77686_ALARM2_SEC = 0x15, + MAX77686_ALARM2_MIN = 0x16, + MAX77686_ALARM2_HOUR = 0x17, + MAX77686_ALARM2_WEEKDAY = 0x18, + MAX77686_ALARM2_MONTH = 0x19, + MAX77686_ALARM2_YEAR = 0x1A, + MAX77686_ALARM2_DATE = 0x1B, +}; + +#define MAX77686_IRQSRC_PMIC (0) +#define MAX77686_IRQSRC_RTC (1 << 0) + +enum max77686_irq_source { + PMIC_INT1 = 0, + PMIC_INT2, + RTC_INT, + + MAX77686_IRQ_GROUP_NR, +}; + +enum max77686_irq { + MAX77686_PMICIRQ_PWRONF, + MAX77686_PMICIRQ_PWRONR, + MAX77686_PMICIRQ_JIGONBF, + MAX77686_PMICIRQ_JIGONBR, + MAX77686_PMICIRQ_ACOKBF, + MAX77686_PMICIRQ_ACOKBR, + MAX77686_PMICIRQ_ONKEY1S, + MAX77686_PMICIRQ_MRSTB, + + MAX77686_PMICIRQ_140C, + MAX77686_PMICIRQ_120C, + + MAX77686_RTCIRQ_RTC60S, + MAX77686_RTCIRQ_RTCA1, + MAX77686_RTCIRQ_RTCA2, + MAX77686_RTCIRQ_SMPL, + MAX77686_RTCIRQ_RTC1S, + MAX77686_RTCIRQ_WTSR, + + MAX77686_IRQ_NR, +}; + +struct max77686_dev { + struct device *dev; + struct i2c_client *i2c; /* 0xcc / PMIC, Battery Control, and FLASH */ + struct i2c_client *rtc; /* slave addr 0x0c */ + struct mutex iolock; + + int type; + + struct regmap *regmap; /* regmap for mfd */ + struct regmap *rtc_regmap; /* regmap for rtc */ + + struct irq_domain *irq_domain; + + int irq; + int irq_gpio; + bool wakeup; + struct mutex irqlock; + int irq_masks_cur[MAX77686_IRQ_GROUP_NR]; + int irq_masks_cache[MAX77686_IRQ_GROUP_NR]; +}; + +enum max77686_types { + TYPE_MAX77686, +}; + +extern int max77686_irq_init(struct max77686_dev *max77686); +extern void max77686_irq_exit(struct max77686_dev *max77686); +extern int max77686_irq_resume(struct max77686_dev *max77686); + +#endif /* __LINUX_MFD_MAX77686_PRIV_H */ diff --git a/include/linux/mfd/max77686.h b/include/linux/mfd/max77686.h new file mode 100644 index 00000000000..fcf312678ca --- /dev/null +++ b/include/linux/mfd/max77686.h @@ -0,0 +1,117 @@ +/* + * max77686.h - Driver for the Maxim 77686 + * + * Copyright (C) 2012 Samsung Electrnoics + * Chiwoong Byun <woong.byun@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * This driver is based on max8997.h + * + * MAX77686 has PMIC, RTC devices. + * The devices share the same I2C bus and included in + * this mfd driver. + */ + +#ifndef __LINUX_MFD_MAX77686_H +#define __LINUX_MFD_MAX77686_H + +#include <linux/regulator/consumer.h> + +/* MAX77686 regulator IDs */ +enum max77686_regulators { + MAX77686_LDO1 = 0, + MAX77686_LDO2, + MAX77686_LDO3, + MAX77686_LDO4, + MAX77686_LDO5, + MAX77686_LDO6, + MAX77686_LDO7, + MAX77686_LDO8, + MAX77686_LDO9, + MAX77686_LDO10, + MAX77686_LDO11, + MAX77686_LDO12, + MAX77686_LDO13, + MAX77686_LDO14, + MAX77686_LDO15, + MAX77686_LDO16, + MAX77686_LDO17, + MAX77686_LDO18, + MAX77686_LDO19, + MAX77686_LDO20, + MAX77686_LDO21, + MAX77686_LDO22, + MAX77686_LDO23, + MAX77686_LDO24, + MAX77686_LDO25, + MAX77686_LDO26, + MAX77686_BUCK1, + MAX77686_BUCK2, + MAX77686_BUCK3, + MAX77686_BUCK4, + MAX77686_BUCK5, + MAX77686_BUCK6, + MAX77686_BUCK7, + MAX77686_BUCK8, + MAX77686_BUCK9, + MAX77686_EN32KHZ_AP, + MAX77686_EN32KHZ_CP, + MAX77686_P32KH, + + MAX77686_REG_MAX, +}; + +struct max77686_regulator_data { + int id; + struct regulator_init_data *initdata; +}; + +enum max77686_opmode { + MAX77686_OPMODE_NORMAL, + MAX77686_OPMODE_LP, + MAX77686_OPMODE_STANDBY, +}; + +struct max77686_opmode_data { + int id; + int mode; +}; + +struct max77686_platform_data { + /* IRQ */ + int irq_gpio; + int ono; + int wakeup; + + /* ---- PMIC ---- */ + struct max77686_regulator_data *regulators; + int num_regulators; + + struct max77686_opmode_data *opmode_data; + + /* + * GPIO-DVS feature is not enabled with the current version of + * MAX77686 driver. Buck2/3/4_voltages[0] is used as the default + * voltage at probe. DVS/SELB gpios are set as OUTPUT-LOW. + */ + int buck234_gpio_dvs[3]; /* GPIO of [0]DVS1, [1]DVS2, [2]DVS3 */ + int buck234_gpio_selb[3]; /* [0]SELB2, [1]SELB3, [2]SELB4 */ + unsigned int buck2_voltage[8]; /* buckx_voltage in uV */ + unsigned int buck3_voltage[8]; + unsigned int buck4_voltage[8]; +}; + +#endif /* __LINUX_MFD_MAX77686_H */ |