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mfd: Add MAX77693 driver
This patch adds MFD driver for MAX77693 to enable its sub devices. The MAX77693 is a multi-function devices. It includes PMIC, MUIC(Micro USB Interface Controller), flash LED control and haptic motor control. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Chanwoo Choi
Samuel Ortiz
parent
ebd29c6cc0
commit
83871c00bb
@ -420,6 +420,18 @@ config PMIC_ADP5520
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individual components like LCD backlight, LEDs, GPIOs and Kepad
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under the corresponding menus.
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config MFD_MAX77693
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bool "Maxim Semiconductor MAX77693 PMIC Support"
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depends on I2C=y && GENERIC_HARDIRQS
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select MFD_CORE
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help
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Say yes here to support for Maxim Semiconductor MAX77693.
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This is a companion Power Management IC with Flash, Haptic, Charger,
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and MUIC(Micro USB Interface Controller) controls on chip.
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This driver provides common support for accessing the device;
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additional drivers must be enabled in order to use the functionality
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of the device.
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config MFD_MAX8925
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bool "Maxim Semiconductor MAX8925 PMIC Support"
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depends on I2C=y && GENERIC_HARDIRQS
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@ -78,6 +78,7 @@ obj-$(CONFIG_PMIC_DA9052) += da9052-core.o
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obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o
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obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o
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obj-$(CONFIG_MFD_MAX77693) += max77693.o
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max8925-objs := max8925-core.o max8925-i2c.o
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obj-$(CONFIG_MFD_MAX8925) += max8925.o
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obj-$(CONFIG_MFD_MAX8997) += max8997.o max8997-irq.o
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217
drivers/mfd/max77693.c
Normal file
217
drivers/mfd/max77693.c
Normal file
@ -0,0 +1,217 @@
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/*
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* max77693.c - mfd core driver for the MAX 77693
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*
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* Copyright (C) 2012 Samsung Electronics
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* SangYoung Son <hello.son@smasung.com>
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*
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* This program is not provided / owned by Maxim Integrated Products.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* This driver is based on max8997.c
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*/
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/i2c.h>
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#include <linux/err.h>
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#include <linux/interrupt.h>
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#include <linux/pm_runtime.h>
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#include <linux/mutex.h>
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#include <linux/mfd/core.h>
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#include <linux/mfd/max77693.h>
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#include <linux/mfd/max77693-private.h>
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#include <linux/regulator/machine.h>
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#include <linux/regmap.h>
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#define I2C_ADDR_PMIC (0xCC >> 1) /* Charger, Flash LED */
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#define I2C_ADDR_MUIC (0x4A >> 1)
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#define I2C_ADDR_HAPTIC (0x90 >> 1)
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static struct mfd_cell max77693_devs[] = {
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{ .name = "max77693-pmic", },
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{ .name = "max77693-charger", },
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{ .name = "max77693-flash", },
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{ .name = "max77693-muic", },
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{ .name = "max77693-haptic", },
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};
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int max77693_read_reg(struct regmap *map, u8 reg, u8 *dest)
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{
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unsigned int val;
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int ret;
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ret = regmap_read(map, reg, &val);
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*dest = val;
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return ret;
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}
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EXPORT_SYMBOL_GPL(max77693_read_reg);
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int max77693_bulk_read(struct regmap *map, u8 reg, int count, u8 *buf)
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{
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int ret;
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ret = regmap_bulk_read(map, reg, buf, count);
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return ret;
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}
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EXPORT_SYMBOL_GPL(max77693_bulk_read);
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int max77693_write_reg(struct regmap *map, u8 reg, u8 value)
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{
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int ret;
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ret = regmap_write(map, reg, value);
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return ret;
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}
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EXPORT_SYMBOL_GPL(max77693_write_reg);
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int max77693_bulk_write(struct regmap *map, u8 reg, int count, u8 *buf)
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{
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int ret;
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ret = regmap_bulk_write(map, reg, buf, count);
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return ret;
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}
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EXPORT_SYMBOL_GPL(max77693_bulk_write);
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int max77693_update_reg(struct regmap *map, u8 reg, u8 val, u8 mask)
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{
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int ret;
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ret = regmap_update_bits(map, reg, mask, val);
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return ret;
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}
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EXPORT_SYMBOL_GPL(max77693_update_reg);
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static const struct regmap_config max77693_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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.max_register = MAX77693_PMIC_REG_END,
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};
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static int max77693_i2c_probe(struct i2c_client *i2c,
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const struct i2c_device_id *id)
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{
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struct max77693_dev *max77693;
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struct max77693_platform_data *pdata = i2c->dev.platform_data;
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u8 reg_data;
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int ret = 0;
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max77693 = devm_kzalloc(&i2c->dev,
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sizeof(struct max77693_dev), GFP_KERNEL);
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if (max77693 == NULL)
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return -ENOMEM;
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max77693->regmap = devm_regmap_init_i2c(i2c, &max77693_regmap_config);
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if (IS_ERR(max77693->regmap)) {
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ret = PTR_ERR(max77693->regmap);
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dev_err(max77693->dev,"failed to allocate register map: %d\n",
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ret);
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goto err_regmap;
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}
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i2c_set_clientdata(i2c, max77693);
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max77693->dev = &i2c->dev;
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max77693->i2c = i2c;
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max77693->irq = i2c->irq;
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max77693->type = id->driver_data;
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if (!pdata)
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goto err_regmap;
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max77693->wakeup = pdata->wakeup;
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mutex_init(&max77693->iolock);
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if (max77693_read_reg(max77693->regmap,
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MAX77693_PMIC_REG_PMIC_ID2, ®_data) < 0) {
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dev_err(max77693->dev, "device not found on this channel\n");
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ret = -ENODEV;
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goto err_regmap;
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} else
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dev_info(max77693->dev, "device ID: 0x%x\n", reg_data);
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max77693->muic = i2c_new_dummy(i2c->adapter, I2C_ADDR_MUIC);
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i2c_set_clientdata(max77693->muic, max77693);
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max77693->haptic = i2c_new_dummy(i2c->adapter, I2C_ADDR_HAPTIC);
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i2c_set_clientdata(max77693->haptic, max77693);
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pm_runtime_set_active(max77693->dev);
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ret = mfd_add_devices(max77693->dev, -1, max77693_devs,
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ARRAY_SIZE(max77693_devs), NULL, 0);
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if (ret < 0)
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goto err_mfd;
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return ret;
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err_mfd:
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i2c_unregister_device(max77693->muic);
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i2c_unregister_device(max77693->haptic);
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err_regmap:
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kfree(max77693);
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return ret;
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}
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static int max77693_i2c_remove(struct i2c_client *i2c)
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{
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struct max77693_dev *max77693 = i2c_get_clientdata(i2c);
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mfd_remove_devices(max77693->dev);
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i2c_unregister_device(max77693->muic);
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i2c_unregister_device(max77693->haptic);
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return 0;
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}
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static const struct i2c_device_id max77693_i2c_id[] = {
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{ "max77693", TYPE_MAX77693 },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, max77693_i2c_id);
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static struct i2c_driver max77693_i2c_driver = {
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.driver = {
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.name = "max77693",
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.owner = THIS_MODULE,
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},
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.probe = max77693_i2c_probe,
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.remove = max77693_i2c_remove,
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.id_table = max77693_i2c_id,
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};
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static int __init max77693_i2c_init(void)
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{
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return i2c_add_driver(&max77693_i2c_driver);
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}
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/* init early so consumer devices can complete system boot */
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subsys_initcall(max77693_i2c_init);
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static void __exit max77693_i2c_exit(void)
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{
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i2c_del_driver(&max77693_i2c_driver);
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}
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module_exit(max77693_i2c_exit);
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MODULE_DESCRIPTION("MAXIM 77693 multi-function core driver");
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MODULE_AUTHOR("SangYoung, Son <hello.son@samsung.com>");
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MODULE_LICENSE("GPL");
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217
include/linux/mfd/max77693-private.h
Normal file
217
include/linux/mfd/max77693-private.h
Normal file
@ -0,0 +1,217 @@
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/*
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* max77693-private.h - Voltage regulator driver for the Maxim 77693
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*
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* Copyright (C) 2012 Samsung Electrnoics
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* SangYoung Son <hello.son@samsung.com>
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*
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* This program is not provided / owned by Maxim Integrated Products.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __LINUX_MFD_MAX77693_PRIV_H
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#define __LINUX_MFD_MAX77693_PRIV_H
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#include <linux/i2c.h>
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#define MAX77693_NUM_IRQ_MUIC_REGS 3
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#define MAX77693_REG_INVALID (0xff)
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/* Slave addr = 0xCC: PMIC, Charger, Flash LED */
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enum max77693_pmic_reg {
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MAX77693_LED_REG_IFLASH1 = 0x00,
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MAX77693_LED_REG_IFLASH2 = 0x01,
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MAX77693_LED_REG_ITORCH = 0x02,
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MAX77693_LED_REG_ITORCHTIMER = 0x03,
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MAX77693_LED_REG_FLASH_TIMER = 0x04,
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MAX77693_LED_REG_FLASH_EN = 0x05,
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MAX77693_LED_REG_MAX_FLASH1 = 0x06,
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MAX77693_LED_REG_MAX_FLASH2 = 0x07,
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MAX77693_LED_REG_MAX_FLASH3 = 0x08,
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MAX77693_LED_REG_MAX_FLASH4 = 0x09,
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MAX77693_LED_REG_VOUT_CNTL = 0x0A,
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MAX77693_LED_REG_VOUT_FLASH1 = 0x0B,
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MAX77693_LED_REG_VOUT_FLASH2 = 0x0C,
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MAX77693_LED_REG_FLASH_INT = 0x0E,
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MAX77693_LED_REG_FLASH_INT_MASK = 0x0F,
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MAX77693_LED_REG_FLASH_INT_STATUS = 0x10,
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MAX77693_PMIC_REG_PMIC_ID1 = 0x20,
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MAX77693_PMIC_REG_PMIC_ID2 = 0x21,
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MAX77693_PMIC_REG_INTSRC = 0x22,
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MAX77693_PMIC_REG_INTSRC_MASK = 0x23,
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MAX77693_PMIC_REG_TOPSYS_INT = 0x24,
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MAX77693_PMIC_REG_TOPSYS_INT_MASK = 0x26,
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MAX77693_PMIC_REG_TOPSYS_STAT = 0x28,
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MAX77693_PMIC_REG_MAINCTRL1 = 0x2A,
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MAX77693_PMIC_REG_LSCNFG = 0x2B,
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MAX77693_CHG_REG_CHG_INT = 0xB0,
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MAX77693_CHG_REG_CHG_INT_MASK = 0xB1,
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MAX77693_CHG_REG_CHG_INT_OK = 0xB2,
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MAX77693_CHG_REG_CHG_DETAILS_00 = 0xB3,
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MAX77693_CHG_REG_CHG_DETAILS_01 = 0xB4,
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MAX77693_CHG_REG_CHG_DETAILS_02 = 0xB5,
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MAX77693_CHG_REG_CHG_DETAILS_03 = 0xB6,
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MAX77693_CHG_REG_CHG_CNFG_00 = 0xB7,
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MAX77693_CHG_REG_CHG_CNFG_01 = 0xB8,
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MAX77693_CHG_REG_CHG_CNFG_02 = 0xB9,
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MAX77693_CHG_REG_CHG_CNFG_03 = 0xBA,
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MAX77693_CHG_REG_CHG_CNFG_04 = 0xBB,
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MAX77693_CHG_REG_CHG_CNFG_05 = 0xBC,
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MAX77693_CHG_REG_CHG_CNFG_06 = 0xBD,
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MAX77693_CHG_REG_CHG_CNFG_07 = 0xBE,
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MAX77693_CHG_REG_CHG_CNFG_08 = 0xBF,
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MAX77693_CHG_REG_CHG_CNFG_09 = 0xC0,
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MAX77693_CHG_REG_CHG_CNFG_10 = 0xC1,
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MAX77693_CHG_REG_CHG_CNFG_11 = 0xC2,
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MAX77693_CHG_REG_CHG_CNFG_12 = 0xC3,
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MAX77693_CHG_REG_CHG_CNFG_13 = 0xC4,
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MAX77693_CHG_REG_CHG_CNFG_14 = 0xC5,
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MAX77693_CHG_REG_SAFEOUT_CTRL = 0xC6,
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MAX77693_PMIC_REG_END,
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};
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/* Slave addr = 0x4A: MUIC */
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enum max77693_muic_reg {
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MAX77693_MUIC_REG_ID = 0x00,
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MAX77693_MUIC_REG_INT1 = 0x01,
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MAX77693_MUIC_REG_INT2 = 0x02,
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MAX77693_MUIC_REG_INT3 = 0x03,
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MAX77693_MUIC_REG_STATUS1 = 0x04,
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MAX77693_MUIC_REG_STATUS2 = 0x05,
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MAX77693_MUIC_REG_STATUS3 = 0x06,
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MAX77693_MUIC_REG_INTMASK1 = 0x07,
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MAX77693_MUIC_REG_INTMASK2 = 0x08,
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MAX77693_MUIC_REG_INTMASK3 = 0x09,
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MAX77693_MUIC_REG_CDETCTRL1 = 0x0A,
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MAX77693_MUIC_REG_CDETCTRL2 = 0x0B,
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MAX77693_MUIC_REG_CTRL1 = 0x0C,
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MAX77693_MUIC_REG_CTRL2 = 0x0D,
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MAX77693_MUIC_REG_CTRL3 = 0x0E,
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MAX77693_MUIC_REG_END,
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};
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/* Slave addr = 0x90: Haptic */
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enum max77693_haptic_reg {
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MAX77693_HAPTIC_REG_STATUS = 0x00,
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MAX77693_HAPTIC_REG_CONFIG1 = 0x01,
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MAX77693_HAPTIC_REG_CONFIG2 = 0x02,
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MAX77693_HAPTIC_REG_CONFIG_CHNL = 0x03,
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MAX77693_HAPTIC_REG_CONFG_CYC1 = 0x04,
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MAX77693_HAPTIC_REG_CONFG_CYC2 = 0x05,
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MAX77693_HAPTIC_REG_CONFIG_PER1 = 0x06,
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MAX77693_HAPTIC_REG_CONFIG_PER2 = 0x07,
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MAX77693_HAPTIC_REG_CONFIG_PER3 = 0x08,
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MAX77693_HAPTIC_REG_CONFIG_PER4 = 0x09,
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MAX77693_HAPTIC_REG_CONFIG_DUTY1 = 0x0A,
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MAX77693_HAPTIC_REG_CONFIG_DUTY2 = 0x0B,
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MAX77693_HAPTIC_REG_CONFIG_PWM1 = 0x0C,
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MAX77693_HAPTIC_REG_CONFIG_PWM2 = 0x0D,
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MAX77693_HAPTIC_REG_CONFIG_PWM3 = 0x0E,
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MAX77693_HAPTIC_REG_CONFIG_PWM4 = 0x0F,
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MAX77693_HAPTIC_REG_REV = 0x10,
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MAX77693_HAPTIC_REG_END,
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};
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enum max77693_irq_source {
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LED_INT = 0,
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TOPSYS_INT,
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CHG_INT,
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MUIC_INT1,
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MUIC_INT2,
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MUIC_INT3,
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MAX77693_IRQ_GROUP_NR,
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};
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enum max77693_irq {
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/* PMIC - FLASH */
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MAX77693_LED_IRQ_FLED2_OPEN,
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MAX77693_LED_IRQ_FLED2_SHORT,
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MAX77693_LED_IRQ_FLED1_OPEN,
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MAX77693_LED_IRQ_FLED1_SHORT,
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MAX77693_LED_IRQ_MAX_FLASH,
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/* PMIC - TOPSYS */
|
||||
MAX77693_TOPSYS_IRQ_T120C_INT,
|
||||
MAX77693_TOPSYS_IRQ_T140C_INT,
|
||||
MAX77693_TOPSYS_IRQ_LOWSYS_INT,
|
||||
|
||||
/* PMIC - Charger */
|
||||
MAX77693_CHG_IRQ_BYP_I,
|
||||
MAX77693_CHG_IRQ_THM_I,
|
||||
MAX77693_CHG_IRQ_BAT_I,
|
||||
MAX77693_CHG_IRQ_CHG_I,
|
||||
MAX77693_CHG_IRQ_CHGIN_I,
|
||||
|
||||
/* MUIC INT1 */
|
||||
MAX77693_MUIC_IRQ_INT1_ADC,
|
||||
MAX77693_MUIC_IRQ_INT1_ADC_LOW,
|
||||
MAX77693_MUIC_IRQ_INT1_ADC_ERR,
|
||||
MAX77693_MUIC_IRQ_INT1_ADC1K,
|
||||
|
||||
/* MUIC INT2 */
|
||||
MAX77693_MUIC_IRQ_INT2_CHGTYP,
|
||||
MAX77693_MUIC_IRQ_INT2_CHGDETREUN,
|
||||
MAX77693_MUIC_IRQ_INT2_DCDTMR,
|
||||
MAX77693_MUIC_IRQ_INT2_DXOVP,
|
||||
MAX77693_MUIC_IRQ_INT2_VBVOLT,
|
||||
MAX77693_MUIC_IRQ_INT2_VIDRM,
|
||||
|
||||
/* MUIC INT3 */
|
||||
MAX77693_MUIC_IRQ_INT3_EOC,
|
||||
MAX77693_MUIC_IRQ_INT3_CGMBC,
|
||||
MAX77693_MUIC_IRQ_INT3_OVP,
|
||||
MAX77693_MUIC_IRQ_INT3_MBCCHG_ERR,
|
||||
MAX77693_MUIC_IRQ_INT3_CHG_ENABLED,
|
||||
MAX77693_MUIC_IRQ_INT3_BAT_DET,
|
||||
|
||||
MAX77693_IRQ_NR,
|
||||
};
|
||||
|
||||
struct max77693_dev {
|
||||
struct device *dev;
|
||||
struct i2c_client *i2c; /* 0xCC , PMIC, Charger, Flash LED */
|
||||
struct i2c_client *muic; /* 0x4A , MUIC */
|
||||
struct i2c_client *haptic; /* 0x90 , Haptic */
|
||||
struct mutex iolock;
|
||||
|
||||
int type;
|
||||
|
||||
struct regmap *regmap;
|
||||
struct regmap *regmap_muic;
|
||||
struct regmap *regmap_haptic;
|
||||
|
||||
int irq;
|
||||
bool wakeup;
|
||||
};
|
||||
|
||||
enum max77693_types {
|
||||
TYPE_MAX77693,
|
||||
};
|
||||
|
||||
extern int max77693_read_reg(struct regmap *map, u8 reg, u8 *dest);
|
||||
extern int max77693_bulk_read(struct regmap *map, u8 reg, int count,
|
||||
u8 *buf);
|
||||
extern int max77693_write_reg(struct regmap *map, u8 reg, u8 value);
|
||||
extern int max77693_bulk_write(struct regmap *map, u8 reg, int count,
|
||||
u8 *buf);
|
||||
extern int max77693_update_reg(struct regmap *map, u8 reg, u8 val, u8 mask);
|
||||
|
||||
#endif /* __LINUX_MFD_MAX77693_PRIV_H */
|
||||
37
include/linux/mfd/max77693.h
Normal file
37
include/linux/mfd/max77693.h
Normal file
@ -0,0 +1,37 @@
|
||||
/*
|
||||
* max77693.h - Driver for the Maxim 77693
|
||||
*
|
||||
* Copyright (C) 2012 Samsung Electrnoics
|
||||
* SangYoung Son <hello.son@samsung.com>
|
||||
*
|
||||
* This program is not provided / owned by Maxim Integrated Products.
|
||||
*
|
||||
* 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
|
||||
*
|
||||
* MAX77693 has PMIC, Charger, Flash LED, Haptic, MUIC devices.
|
||||
* The devices share the same I2C bus and included in
|
||||
* this mfd driver.
|
||||
*/
|
||||
|
||||
#ifndef __LINUX_MFD_MAX77693_H
|
||||
#define __LINUX_MFD_MAX77693_H
|
||||
|
||||
struct max77693_platform_data {
|
||||
/* IRQ */
|
||||
int wakeup;
|
||||
};
|
||||
#endif /* __LINUX_MFD_MAX77693_H */
|
||||
Loading…
Reference in New Issue
Block a user