mfd: tps65912: Add new mfd device
authorMargarita Olaya <magi@slimlogic.co.uk>
Thu, 9 Jun 2011 19:50:00 +0000 (14:50 -0500)
committerSamuel Ortiz <sameo@linux.intel.com>
Sun, 31 Jul 2011 21:28:22 +0000 (23:28 +0200)
The tps65912 chip is a power management IC. It contains the following
components:

- Regulators
- GPIO controller

The core driver is registered as a platform driver, it provides communication
through I2C and SPI interfaces.

Signed-off-by: Margarita Olaya Cabrera <magi@slimlogic.co.uk>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
drivers/mfd/Kconfig
drivers/mfd/Makefile
drivers/mfd/tps65912-core.c [new file with mode: 0644]
drivers/mfd/tps65912-i2c.c [new file with mode: 0644]
drivers/mfd/tps65912-spi.c [new file with mode: 0644]
include/linux/mfd/tps65912.h [new file with mode: 0644]

index 1e2c9f0..f94036a 100644 (file)
@@ -171,6 +171,28 @@ config MFD_TPS6586X
          This driver can also be built as a module.  If so, the module
          will be called tps6586x.
 
+config MFD_TPS65912
+       bool "TPS65912 PMIC"
+       depends on GPIOLIB
+
+config MFD_TPS65912_I2C
+       bool "TPS95612 Power Management chip with I2C"
+       select MFD_CORE
+       select MFD_TPS65912
+       depends on I2C=y && GPIOLIB
+       help
+         If you say yes here you get support for the TPS65912 series of
+         PM chips with I2C interface.
+
+config MFD_TPS65912_SPI
+       bool "TPS65912 Power Management chip with SPI"
+       select MFD_CORE
+       select MFD_TPS65912
+       depends on SPI_MASTER && GPIOLIB
+       help
+         If you say yes here you get support for the TPS65912 series of
+         PM chips with SPI interface.
+
 config MENELAUS
        bool "Texas Instruments TWL92330/Menelaus PM chip"
        depends on I2C=y && ARCH_OMAP2
index 0889f53..c9925e5 100644 (file)
@@ -36,6 +36,10 @@ obj-$(CONFIG_MFD_WM8994)     += wm8994-core.o wm8994-irq.o
 obj-$(CONFIG_TPS6105X)         += tps6105x.o
 obj-$(CONFIG_TPS65010)         += tps65010.o
 obj-$(CONFIG_TPS6507X)         += tps6507x.o
+tps65912-objs                   := tps65912-core.o
+obj-$(CONFIG_MFD_TPS65912)     += tps65912.o
+obj-$(CONFIG_MFD_TPS65912_I2C) += tps65912-i2c.o
+obj-$(CONFIG_MFD_TPS65912_SPI)  += tps65912-spi.o
 obj-$(CONFIG_MENELAUS)         += menelaus.o
 
 obj-$(CONFIG_TWL4030_CORE)     += twl-core.o twl4030-irq.o twl6030-irq.o
diff --git a/drivers/mfd/tps65912-core.c b/drivers/mfd/tps65912-core.c
new file mode 100644 (file)
index 0000000..10baf76
--- /dev/null
@@ -0,0 +1,164 @@
+/*
+ * tps65912-core.c  --  TI TPS65912x
+ *
+ * Copyright 2011 Texas Instruments Inc.
+ *
+ * Author: Margarita Olaya Cabrera <magi@slimlogic.co.uk>
+ *
+ *  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 driver is based on wm8350 implementation.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/tps65912.h>
+
+static struct mfd_cell tps65912s[] = {
+       {
+               .name = "tps65912-pmic",
+       },
+};
+
+int tps65912_set_bits(struct tps65912 *tps65912, u8 reg, u8 mask)
+{
+       u8 data;
+       int err;
+
+       mutex_lock(&tps65912->io_mutex);
+
+       err = tps65912->read(tps65912, reg, 1, &data);
+       if (err) {
+               dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg);
+               goto out;
+       }
+
+       data |= mask;
+       err = tps65912->write(tps65912, reg, 1, &data);
+       if (err)
+               dev_err(tps65912->dev, "Write to reg 0x%x failed\n", reg);
+
+out:
+       mutex_unlock(&tps65912->io_mutex);
+       return err;
+}
+EXPORT_SYMBOL_GPL(tps65912_set_bits);
+
+int tps65912_clear_bits(struct tps65912 *tps65912, u8 reg, u8 mask)
+{
+       u8 data;
+       int err;
+
+       mutex_lock(&tps65912->io_mutex);
+       err = tps65912->read(tps65912, reg, 1, &data);
+       if (err) {
+               dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg);
+               goto out;
+       }
+
+       data &= ~mask;
+       err = tps65912->write(tps65912, reg, 1, &data);
+       if (err)
+               dev_err(tps65912->dev, "Write to reg 0x%x failed\n", reg);
+
+out:
+       mutex_unlock(&tps65912->io_mutex);
+       return err;
+}
+EXPORT_SYMBOL_GPL(tps65912_clear_bits);
+
+static inline int tps65912_read(struct tps65912 *tps65912, u8 reg)
+{
+       u8 val;
+       int err;
+
+       err = tps65912->read(tps65912, reg, 1, &val);
+       if (err < 0)
+               return err;
+
+       return val;
+}
+
+static inline int tps65912_write(struct tps65912 *tps65912, u8 reg, u8 val)
+{
+       return tps65912->write(tps65912, reg, 1, &val);
+}
+
+int tps65912_reg_read(struct tps65912 *tps65912, u8 reg)
+{
+       int data;
+
+       mutex_lock(&tps65912->io_mutex);
+
+       data = tps65912_read(tps65912, reg);
+       if (data < 0)
+               dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg);
+
+       mutex_unlock(&tps65912->io_mutex);
+       return data;
+}
+EXPORT_SYMBOL_GPL(tps65912_reg_read);
+
+int tps65912_reg_write(struct tps65912 *tps65912, u8 reg, u8 val)
+{
+       int err;
+
+       mutex_lock(&tps65912->io_mutex);
+
+       err = tps65912_write(tps65912, reg, val);
+       if (err < 0)
+               dev_err(tps65912->dev, "Write for reg 0x%x failed\n", reg);
+
+       mutex_unlock(&tps65912->io_mutex);
+       return err;
+}
+EXPORT_SYMBOL_GPL(tps65912_reg_write);
+
+int tps65912_device_init(struct tps65912 *tps65912)
+{
+       struct tps65912_board *pmic_plat_data = tps65912->dev->platform_data;
+       int ret, dcdc_avs, value;
+
+       mutex_init(&tps65912->io_mutex);
+       dev_set_drvdata(tps65912->dev, tps65912);
+
+       dcdc_avs = (pmic_plat_data->is_dcdc1_avs << 0 |
+                       pmic_plat_data->is_dcdc2_avs  << 1 |
+                               pmic_plat_data->is_dcdc3_avs << 2 |
+                                       pmic_plat_data->is_dcdc4_avs << 3);
+       if (dcdc_avs) {
+               tps65912->read(tps65912, TPS65912_I2C_SPI_CFG, 1, &value);
+               dcdc_avs |= value;
+               tps65912->write(tps65912, TPS65912_I2C_SPI_CFG, 1, &dcdc_avs);
+       }
+
+       ret = mfd_add_devices(tps65912->dev, -1,
+                             tps65912s, ARRAY_SIZE(tps65912s),
+                             NULL, 0);
+       if (ret < 0)
+               goto err;
+
+       return ret;
+
+err:
+       mfd_remove_devices(tps65912->dev);
+       kfree(tps65912);
+       return ret;
+}
+
+void tps65912_device_exit(struct tps65912 *tps65912)
+{
+       mfd_remove_devices(tps65912->dev);
+       kfree(tps65912);
+}
+
+MODULE_AUTHOR("Margarita Olaya <magi@slimlogic.co.uk>");
+MODULE_DESCRIPTION("TPS65912x chip family multi-function driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/mfd/tps65912-i2c.c b/drivers/mfd/tps65912-i2c.c
new file mode 100644 (file)
index 0000000..9ed123a
--- /dev/null
@@ -0,0 +1,139 @@
+/*
+ * tps65912-i2c.c  --  I2C access for TI TPS65912x PMIC
+ *
+ * Copyright 2011 Texas Instruments Inc.
+ *
+ * Author: Margarita Olaya Cabrera <magi@slimlogic.co.uk>
+ *
+ *  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 driver is based on wm8350 implementation.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/tps65912.h>
+
+static int tps65912_i2c_read(struct tps65912 *tps65912, u8 reg,
+                                 int bytes, void *dest)
+{
+       struct i2c_client *i2c = tps65912->control_data;
+       struct i2c_msg xfer[2];
+       int ret;
+
+       /* Write register */
+       xfer[0].addr = i2c->addr;
+       xfer[0].flags = 0;
+       xfer[0].len = 1;
+       xfer[0].buf = &reg;
+
+       /* Read data */
+       xfer[1].addr = i2c->addr;
+       xfer[1].flags = I2C_M_RD;
+       xfer[1].len = bytes;
+       xfer[1].buf = dest;
+
+       ret = i2c_transfer(i2c->adapter, xfer, 2);
+       if (ret == 2)
+               ret = 0;
+       else if (ret >= 0)
+               ret = -EIO;
+       return ret;
+}
+
+static int tps65912_i2c_write(struct tps65912 *tps65912, u8 reg,
+                                  int bytes, void *src)
+{
+       struct i2c_client *i2c = tps65912->control_data;
+       /* we add 1 byte for device register */
+       u8 msg[TPS6591X_MAX_REGISTER + 1];
+       int ret;
+
+       if (bytes > (TPS6591X_MAX_REGISTER + 1))
+               return -EINVAL;
+
+       msg[0] = reg;
+       memcpy(&msg[1], src, bytes);
+
+       ret = i2c_master_send(i2c, msg, bytes + 1);
+       if (ret < 0)
+               return ret;
+       if (ret != bytes + 1)
+               return -EIO;
+
+       return 0;
+}
+
+static int tps65912_i2c_probe(struct i2c_client *i2c,
+                           const struct i2c_device_id *id)
+{
+       struct tps65912 *tps65912;
+
+       tps65912 = kzalloc(sizeof(struct tps65912), GFP_KERNEL);
+       if (tps65912 == NULL)
+               return -ENOMEM;
+
+       i2c_set_clientdata(i2c, tps65912);
+       tps65912->dev = &i2c->dev;
+       tps65912->control_data = i2c;
+       tps65912->read = tps65912_i2c_read;
+       tps65912->write = tps65912_i2c_write;
+
+       return tps65912_device_init(tps65912);
+}
+
+static int tps65912_i2c_remove(struct i2c_client *i2c)
+{
+       struct tps65912 *tps65912 = i2c_get_clientdata(i2c);
+
+       tps65912_device_exit(tps65912);
+
+       return 0;
+}
+
+static const struct i2c_device_id tps65912_i2c_id[] = {
+       {"tps65912", 0 },
+       { }
+};
+MODULE_DEVICE_TABLE(i2c, tps65912_i2c_id);
+
+static struct i2c_driver tps65912_i2c_driver = {
+       .driver = {
+                  .name = "tps65912",
+                  .owner = THIS_MODULE,
+       },
+       .probe = tps65912_i2c_probe,
+       .remove = tps65912_i2c_remove,
+       .id_table = tps65912_i2c_id,
+};
+
+static int __init tps65912_i2c_init(void)
+{
+       int ret;
+
+       ret = i2c_add_driver(&tps65912_i2c_driver);
+       if (ret != 0)
+               pr_err("Failed to register TPS65912 I2C driver: %d\n", ret);
+
+       return ret;
+}
+/* init early so consumer devices can complete system boot */
+subsys_initcall(tps65912_i2c_init);
+
+static void __exit tps65912_i2c_exit(void)
+{
+       i2c_del_driver(&tps65912_i2c_driver);
+}
+module_exit(tps65912_i2c_exit);
+
+MODULE_AUTHOR("Margarita Olaya <magi@slimlogic.co.uk>");
+MODULE_DESCRIPTION("TPS6591x chip family multi-function driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/mfd/tps65912-spi.c b/drivers/mfd/tps65912-spi.c
new file mode 100644 (file)
index 0000000..6d71e0d
--- /dev/null
@@ -0,0 +1,142 @@
+/*
+ * tps65912-spi.c  --  SPI access for TI TPS65912x PMIC
+ *
+ * Copyright 2011 Texas Instruments Inc.
+ *
+ * Author: Margarita Olaya Cabrera <magi@slimlogic.co.uk>
+ *
+ *  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 driver is based on wm8350 implementation.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/spi/spi.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/tps65912.h>
+
+static int tps65912_spi_write(struct tps65912 *tps65912, u8 addr,
+                                                       int bytes, void *src)
+{
+       struct spi_device *spi = tps65912->control_data;
+       u8 *data = (u8 *) src;
+       int ret;
+       /* bit 23 is the read/write bit */
+       unsigned long spi_data = 1 << 23 | addr << 15 | *data;
+       struct spi_transfer xfer;
+       struct spi_message msg;
+       u32 tx_buf, rx_buf;
+
+       tx_buf = spi_data;
+       rx_buf = 0;
+
+       xfer.tx_buf     = &tx_buf;
+       xfer.rx_buf     = NULL;
+       xfer.len        = sizeof(unsigned long);
+       xfer.bits_per_word = 24;
+
+       spi_message_init(&msg);
+       spi_message_add_tail(&xfer, &msg);
+
+       ret = spi_sync(spi, &msg);
+       return ret;
+}
+
+static int tps65912_spi_read(struct tps65912 *tps65912, u8 addr,
+                                                       int bytes, void *dest)
+{
+       struct spi_device *spi = tps65912->control_data;
+       /* bit 23 is the read/write bit */
+       unsigned long spi_data = 0 << 23 | addr << 15;
+       struct spi_transfer xfer;
+       struct spi_message msg;
+       int ret;
+       u8 *data = (u8 *) dest;
+       u32 tx_buf, rx_buf;
+
+       tx_buf = spi_data;
+       rx_buf = 0;
+
+       xfer.tx_buf     = &tx_buf;
+       xfer.rx_buf     = &rx_buf;
+       xfer.len        = sizeof(unsigned long);
+       xfer.bits_per_word = 24;
+
+       spi_message_init(&msg);
+       spi_message_add_tail(&xfer, &msg);
+
+       if (spi == NULL)
+               return 0;
+
+       ret = spi_sync(spi, &msg);
+       if (ret == 0)
+               *data = (u8) (rx_buf & 0xFF);
+       return ret;
+}
+
+static int __devinit tps65912_spi_probe(struct spi_device *spi)
+{
+       struct tps65912 *tps65912;
+
+       tps65912 = kzalloc(sizeof(struct tps65912), GFP_KERNEL);
+       if (tps65912 == NULL)
+               return -ENOMEM;
+
+       tps65912->dev = &spi->dev;
+       tps65912->control_data = spi;
+       tps65912->read = tps65912_spi_read;
+       tps65912->write = tps65912_spi_write;
+
+       spi_set_drvdata(spi, tps65912);
+
+       return tps65912_device_init(tps65912);
+}
+
+static int __devexit tps65912_spi_remove(struct spi_device *spi)
+{
+       struct tps65912 *tps65912 = spi_get_drvdata(spi);
+
+       tps65912_device_exit(tps65912);
+
+       return 0;
+}
+
+static struct spi_driver tps65912_spi_driver = {
+       .driver = {
+               .name = "tps65912",
+               .bus = &spi_bus_type,
+               .owner = THIS_MODULE,
+       },
+       .probe  = tps65912_spi_probe,
+       .remove = __devexit_p(tps65912_spi_remove),
+};
+
+static int __init tps65912_spi_init(void)
+{
+       int ret;
+
+       ret = spi_register_driver(&tps65912_spi_driver);
+       if (ret != 0)
+               pr_err("Failed to register TPS65912 SPI driver: %d\n", ret);
+
+       return 0;
+}
+/* init early so consumer devices can complete system boot */
+subsys_initcall(tps65912_spi_init);
+
+static void __exit tps65912_spi_exit(void)
+{
+       spi_unregister_driver(&tps65912_spi_driver);
+}
+module_exit(tps65912_spi_exit);
+
+MODULE_AUTHOR("Margarita Olaya <magi@slimlogic.co.uk>");
+MODULE_DESCRIPTION("SPI support for TPS65912 chip family mfd");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/mfd/tps65912.h b/include/linux/mfd/tps65912.h
new file mode 100644 (file)
index 0000000..48d3b53
--- /dev/null
@@ -0,0 +1,321 @@
+/*
+ * tps65912.h  --  TI TPS6591x
+ *
+ * Copyright 2011 Texas Instruments Inc.
+ *
+ * Author: Margarita Olaya <magi@slimlogic.co.uk>
+ *
+ *  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.
+ *
+ */
+
+#ifndef __LINUX_MFD_TPS65912_H
+#define __LINUX_MFD_TPS65912_H
+
+/* TPS regulator type list */
+#define REGULATOR_LDO          0
+#define REGULATOR_DCDC         1
+
+/*
+ * List of registers for TPS65912
+ */
+
+#define TPS65912_DCDC1_CTRL            0x00
+#define TPS65912_DCDC2_CTRL            0x01
+#define TPS65912_DCDC3_CTRL            0x02
+#define TPS65912_DCDC4_CTRL            0x03
+#define TPS65912_DCDC1_OP              0x04
+#define TPS65912_DCDC1_AVS             0x05
+#define TPS65912_DCDC1_LIMIT           0x06
+#define TPS65912_DCDC2_OP              0x07
+#define TPS65912_DCDC2_AVS             0x08
+#define TPS65912_DCDC2_LIMIT           0x09
+#define TPS65912_DCDC3_OP              0x0A
+#define TPS65912_DCDC3_AVS             0x0B
+#define TPS65912_DCDC3_LIMIT           0x0C
+#define TPS65912_DCDC4_OP              0x0D
+#define TPS65912_DCDC4_AVS             0x0E
+#define TPS65912_DCDC4_LIMIT           0x0F
+#define TPS65912_LDO1_OP               0x10
+#define TPS65912_LDO1_AVS              0x11
+#define TPS65912_LDO1_LIMIT            0x12
+#define TPS65912_LDO2_OP               0x13
+#define TPS65912_LDO2_AVS              0x14
+#define TPS65912_LDO2_LIMIT            0x15
+#define TPS65912_LDO3_OP               0x16
+#define TPS65912_LDO3_AVS              0x17
+#define TPS65912_LDO3_LIMIT            0x18
+#define TPS65912_LDO4_OP               0x19
+#define TPS65912_LDO4_AVS              0x1A
+#define TPS65912_LDO4_LIMIT            0x1B
+#define TPS65912_LDO5                  0x1C
+#define TPS65912_LDO6                  0x1D
+#define TPS65912_LDO7                  0x1E
+#define TPS65912_LDO8                  0x1F
+#define TPS65912_LDO9                  0x20
+#define TPS65912_LDO10                 0x21
+#define TPS65912_THRM                  0x22
+#define TPS65912_CLK32OUT              0x23
+#define TPS65912_DEVCTRL               0x24
+#define TPS65912_DEVCTRL2              0x25
+#define TPS65912_I2C_SPI_CFG           0x26
+#define TPS65912_KEEP_ON               0x27
+#define TPS65912_KEEP_ON2              0x28
+#define TPS65912_SET_OFF1              0x29
+#define TPS65912_SET_OFF2              0x2A
+#define TPS65912_DEF_VOLT              0x2B
+#define TPS65912_DEF_VOLT_MAPPING      0x2C
+#define TPS65912_DISCHARGE             0x2D
+#define TPS65912_DISCHARGE2            0x2E
+#define TPS65912_EN1_SET1              0x2F
+#define TPS65912_EN1_SET2              0x30
+#define TPS65912_EN2_SET1              0x31
+#define TPS65912_EN2_SET2              0x32
+#define TPS65912_EN3_SET1              0x33
+#define TPS65912_EN3_SET2              0x34
+#define TPS65912_EN4_SET1              0x35
+#define TPS65912_EN4_SET2              0x36
+#define TPS65912_PGOOD                 0x37
+#define TPS65912_PGOOD2                        0x38
+#define TPS65912_INT_STS               0x39
+#define TPS65912_INT_MSK               0x3A
+#define TPS65912_INT_STS2              0x3B
+#define TPS65912_INT_MSK2              0x3C
+#define TPS65912_INT_STS3              0x3D
+#define TPS65912_INT_MSK3              0x3E
+#define TPS65912_INT_STS4              0x3F
+#define TPS65912_INT_MSK4              0x40
+#define TPS65912_GPIO1                 0x41
+#define TPS65912_GPIO2                 0x42
+#define TPS65912_GPIO3                 0x43
+#define TPS65912_GPIO4                 0x44
+#define TPS65912_GPIO5                 0x45
+#define TPS65912_VMON                  0x46
+#define TPS65912_LEDA_CTRL1            0x47
+#define TPS65912_LEDA_CTRL2            0x48
+#define TPS65912_LEDA_CTRL3            0x49
+#define TPS65912_LEDA_CTRL4            0x4A
+#define TPS65912_LEDA_CTRL5            0x4B
+#define TPS65912_LEDA_CTRL6            0x4C
+#define TPS65912_LEDA_CTRL7            0x4D
+#define TPS65912_LEDA_CTRL8            0x4E
+#define TPS65912_LEDB_CTRL1            0x4F
+#define TPS65912_LEDB_CTRL2            0x50
+#define TPS65912_LEDB_CTRL3            0x51
+#define TPS65912_LEDB_CTRL4            0x52
+#define TPS65912_LEDB_CTRL5            0x53
+#define TPS65912_LEDB_CTRL6            0x54
+#define TPS65912_LEDB_CTRL7            0x55
+#define TPS65912_LEDB_CTRL8            0x56
+#define TPS65912_LEDC_CTRL1            0x57
+#define TPS65912_LEDC_CTRL2            0x58
+#define TPS65912_LEDC_CTRL3            0x59
+#define TPS65912_LEDC_CTRL4            0x5A
+#define TPS65912_LEDC_CTRL5            0x5B
+#define TPS65912_LEDC_CTRL6            0x5C
+#define TPS65912_LEDC_CTRL7            0x5D
+#define TPS65912_LEDC_CTRL8            0x5E
+#define TPS65912_LED_RAMP_UP_TIME      0x5F
+#define TPS65912_LED_RAMP_DOWN_TIME    0x60
+#define TPS65912_LED_SEQ_EN            0x61
+#define TPS65912_LOADSWITCH            0x62
+#define TPS65912_SPARE                 0x63
+#define TPS65912_VERNUM                        0x64
+#define TPS6591X_MAX_REGISTER          0x64
+
+/* IRQ Definitions */
+#define TPS65912_IRQ_PWRHOLD_F         0
+#define TPS65912_IRQ_VMON              1
+#define TPS65912_IRQ_PWRON             2
+#define TPS65912_IRQ_PWRON_LP          3
+#define TPS65912_IRQ_PWRHOLD_R         4
+#define TPS65912_IRQ_HOTDIE            5
+#define TPS65912_IRQ_GPIO1_R           6
+#define TPS65912_IRQ_GPIO1_F           7
+#define TPS65912_IRQ_GPIO2_R           8
+#define TPS65912_IRQ_GPIO2_F           9
+#define TPS65912_IRQ_GPIO3_R           10
+#define TPS65912_IRQ_GPIO3_F           11
+#define TPS65912_IRQ_GPIO4_R           12
+#define TPS65912_IRQ_GPIO4_F           13
+#define TPS65912_IRQ_GPIO5_R           14
+#define TPS65912_IRQ_GPIO5_F           15
+#define TPS65912_IRQ_PGOOD_DCDC1       16
+#define TPS65912_IRQ_PGOOD_DCDC2       17
+#define TPS65912_IRQ_PGOOD_DCDC3       18
+#define TPS65912_IRQ_PGOOD_DCDC4       19
+#define TPS65912_IRQ_PGOOD_LDO1                20
+#define TPS65912_IRQ_PGOOD_LDO2                21
+#define TPS65912_IRQ_PGOOD_LDO3                22
+#define TPS65912_IRQ_PGOOD_LDO4                23
+#define TPS65912_IRQ_PGOOD_LDO5                24
+#define TPS65912_IRQ_PGOOD_LDO6                25
+#define TPS65912_IRQ_PGOOD_LDO7                26
+#define TPS65912_IRQ_PGOOD_LD08                27
+#define TPS65912_IRQ_PGOOD_LDO9                28
+#define TPS65912_IRQ_PGOOD_LDO10       29
+
+#define TPS65912_NUM_IRQ               30
+
+/* GPIO 1 and 2 Register Definitions */
+#define GPIO_SLEEP_MASK                        0x80
+#define GPIO_SLEEP_SHIFT               7
+#define GPIO_DEB_MASK                  0x10
+#define GPIO_DEB_SHIFT                 4
+#define GPIO_CFG_MASK                  0x04
+#define GPIO_CFG_SHIFT                 2
+#define GPIO_STS_MASK                  0x02
+#define GPIO_STS_SHIFT                 1
+#define GPIO_SET_MASK                  0x01
+#define GPIO_SET_SHIFT                 0
+
+/* GPIO 3 Register Definitions */
+#define GPIO3_SLEEP_MASK               0x80
+#define GPIO3_SLEEP_SHIFT              7
+#define GPIO3_SEL_MASK                 0x40
+#define GPIO3_SEL_SHIFT                        6
+#define GPIO3_ODEN_MASK                        0x20
+#define GPIO3_ODEN_SHIFT               5
+#define GPIO3_DEB_MASK                 0x10
+#define GPIO3_DEB_SHIFT                        4
+#define GPIO3_PDEN_MASK                        0x08
+#define GPIO3_PDEN_SHIFT               3
+#define GPIO3_CFG_MASK                 0x04
+#define GPIO3_CFG_SHIFT                        2
+#define GPIO3_STS_MASK                 0x02
+#define GPIO3_STS_SHIFT                        1
+#define GPIO3_SET_MASK                 0x01
+#define GPIO3_SET_SHIFT                        0
+
+/* GPIO 4 Register Definitions */
+#define GPIO4_SLEEP_MASK               0x80
+#define GPIO4_SLEEP_SHIFT              7
+#define GPIO4_SEL_MASK                 0x40
+#define GPIO4_SEL_SHIFT                        6
+#define GPIO4_ODEN_MASK                        0x20
+#define GPIO4_ODEN_SHIFT               5
+#define GPIO4_DEB_MASK                 0x10
+#define GPIO4_DEB_SHIFT                        4
+#define GPIO4_PDEN_MASK                        0x08
+#define GPIO4_PDEN_SHIFT               3
+#define GPIO4_CFG_MASK                 0x04
+#define GPIO4_CFG_SHIFT                        2
+#define GPIO4_STS_MASK                 0x02
+#define GPIO4_STS_SHIFT                        1
+#define GPIO4_SET_MASK                 0x01
+#define GPIO4_SET_SHIFT                        0
+
+/* Register THERM  (0x80) register.RegisterDescription */
+#define THERM_THERM_HD_MASK            0x20
+#define THERM_THERM_HD_SHIFT           5
+#define THERM_THERM_TS_MASK            0x10
+#define THERM_THERM_TS_SHIFT           4
+#define THERM_THERM_HDSEL_MASK         0x0C
+#define THERM_THERM_HDSEL_SHIFT                2
+#define THERM_RSVD1_MASK               0x02
+#define THERM_RSVD1_SHIFT              1
+#define THERM_THERM_STATE_MASK         0x01
+#define THERM_THERM_STATE_SHIFT                0
+
+/* Register DCDCCTRL1 register.RegisterDescription */
+#define DCDCCTRL_VCON_ENABLE_MASK      0x80
+#define DCDCCTRL_VCON_ENABLE_SHIFT     7
+#define DCDCCTRL_VCON_RANGE1_MASK      0x40
+#define DCDCCTRL_VCON_RANGE1_SHIFT     6
+#define DCDCCTRL_VCON_RANGE0_MASK      0x20
+#define DCDCCTRL_VCON_RANGE0_SHIFT     5
+#define DCDCCTRL_TSTEP2_MASK           0x10
+#define DCDCCTRL_TSTEP2_SHIFT          4
+#define DCDCCTRL_TSTEP1_MASK           0x08
+#define DCDCCTRL_TSTEP1_SHIFT          3
+#define DCDCCTRL_TSTEP0_MASK           0x04
+#define DCDCCTRL_TSTEP0_SHIFT          2
+#define DCDCCTRL_DCDC1_MODE_MASK       0x02
+#define DCDCCTRL_DCDC1_MODE_SHIFT      1
+
+/* Register DCDCCTRL2 and DCDCCTRL3 register.RegisterDescription */
+#define DCDCCTRL_TSTEP2_MASK           0x10
+#define DCDCCTRL_TSTEP2_SHIFT          4
+#define DCDCCTRL_TSTEP1_MASK           0x08
+#define DCDCCTRL_TSTEP1_SHIFT          3
+#define DCDCCTRL_TSTEP0_MASK           0x04
+#define DCDCCTRL_TSTEP0_SHIFT          2
+#define DCDCCTRL_DCDC_MODE_MASK                0x02
+#define DCDCCTRL_DCDC_MODE_SHIFT       1
+#define DCDCCTRL_RSVD0_MASK            0x01
+#define DCDCCTRL_RSVD0_SHIFT           0
+
+/* Register DCDCCTRL4 register.RegisterDescription */
+#define DCDCCTRL_RAMP_TIME_MASK                0x01
+#define DCDCCTRL_RAMP_TIME_SHIFT       0
+
+/* Register DCDCx_AVS */
+#define DCDC_AVS_ENABLE_MASK           0x80
+#define DCDC_AVS_ENABLE_SHIFT          7
+#define DCDC_AVS_ECO_MASK              0x40
+#define DCDC_AVS_ECO_SHIFT             6
+
+/* Register DCDCx_LIMIT */
+#define DCDC_LIMIT_RANGE_MASK          0xC0
+#define DCDC_LIMIT_RANGE_SHIFT         6
+#define DCDC_LIMIT_MAX_SEL_MASK                0x3F
+#define DCDC_LIMIT_MAX_SEL_SHIFT       0
+
+/**
+ * struct tps65912_board
+ * Board platform dat may be used to initialize regulators.
+ */
+struct tps65912_board {
+       int is_dcdc1_avs;
+       int is_dcdc2_avs;
+       int is_dcdc3_avs;
+       int is_dcdc4_avs;
+       struct regulator_init_data *tps65912_pmic_init_data;
+};
+
+/**
+ * struct tps65912 - tps65912 sub-driver chip access routines
+ */
+
+struct tps65912 {
+       struct device *dev;
+       /* for read/write acces */
+       struct mutex io_mutex;
+
+       /* For device IO interfaces: I2C or SPI */
+       void *control_data;
+
+       int (*read)(struct tps65912 *tps65912, u8 reg, int size, void *dest);
+       int (*write)(struct tps65912 *tps65912, u8 reg, int size, void *src);
+
+       /* Client devices */
+       struct tps65912_pmic *pmic;
+
+       /* GPIO Handling */
+       struct gpio_chip gpio;
+
+       /* IRQ Handling */
+       struct mutex irq_lock;
+       int chip_irq;
+       int irq_base;
+       int irq_num;
+       u32 irq_mask;
+};
+
+struct tps65912_platform_data {
+       int irq_base;
+};
+
+unsigned int tps_chip(void);
+
+int tps65912_set_bits(struct tps65912 *tps65912, u8 reg, u8 mask);
+int tps65912_clear_bits(struct tps65912 *tps65912, u8 reg, u8 mask);
+int tps65912_reg_read(struct tps65912 *tps65912, u8 reg);
+int tps65912_reg_write(struct tps65912 *tps65912, u8 reg, u8 val);
+int tps65912_device_init(struct tps65912 *tps65912);
+void tps65912_device_exit(struct tps65912 *tps65912);
+
+#endif /*  __LINUX_MFD_TPS65912_H */