Create 88pm8607-i2c driver to support all I2C operation of 88PM8607.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
+++ /dev/null
-/*
- * Base driver for Marvell 88PM8607
- *
- * Copyright (C) 2009 Marvell International Ltd.
- * Haojian Zhuang <haojian.zhuang@marvell.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-#include <linux/i2c.h>
-#include <linux/mfd/core.h>
-#include <linux/mfd/88pm8607.h>
-
-
-#define PM8607_REG_RESOURCE(_start, _end) \
-{ \
- .start = PM8607_##_start, \
- .end = PM8607_##_end, \
- .flags = IORESOURCE_IO, \
-}
-
-static struct resource pm8607_regulator_resources[] = {
- PM8607_REG_RESOURCE(BUCK1, BUCK1),
- PM8607_REG_RESOURCE(BUCK2, BUCK2),
- PM8607_REG_RESOURCE(BUCK3, BUCK3),
- PM8607_REG_RESOURCE(LDO1, LDO1),
- PM8607_REG_RESOURCE(LDO2, LDO2),
- PM8607_REG_RESOURCE(LDO3, LDO3),
- PM8607_REG_RESOURCE(LDO4, LDO4),
- PM8607_REG_RESOURCE(LDO5, LDO5),
- PM8607_REG_RESOURCE(LDO6, LDO6),
- PM8607_REG_RESOURCE(LDO7, LDO7),
- PM8607_REG_RESOURCE(LDO8, LDO8),
- PM8607_REG_RESOURCE(LDO9, LDO9),
- PM8607_REG_RESOURCE(LDO10, LDO10),
- PM8607_REG_RESOURCE(LDO12, LDO12),
- PM8607_REG_RESOURCE(LDO14, LDO14),
-};
-
-#define PM8607_REG_DEVS(_name, _id) \
-{ \
- .name = "88pm8607-" #_name, \
- .num_resources = 1, \
- .resources = &pm8607_regulator_resources[PM8607_ID_##_id], \
-}
-
-static struct mfd_cell pm8607_devs[] = {
- PM8607_REG_DEVS(buck1, BUCK1),
- PM8607_REG_DEVS(buck2, BUCK2),
- PM8607_REG_DEVS(buck3, BUCK3),
- PM8607_REG_DEVS(ldo1, LDO1),
- PM8607_REG_DEVS(ldo2, LDO2),
- PM8607_REG_DEVS(ldo3, LDO3),
- PM8607_REG_DEVS(ldo4, LDO4),
- PM8607_REG_DEVS(ldo5, LDO5),
- PM8607_REG_DEVS(ldo6, LDO6),
- PM8607_REG_DEVS(ldo7, LDO7),
- PM8607_REG_DEVS(ldo8, LDO8),
- PM8607_REG_DEVS(ldo9, LDO9),
- PM8607_REG_DEVS(ldo10, LDO10),
- PM8607_REG_DEVS(ldo12, LDO12),
- PM8607_REG_DEVS(ldo14, LDO14),
-};
-
-static inline int pm8607_read_device(struct pm8607_chip *chip,
- int reg, int bytes, void *dest)
-{
- struct i2c_client *i2c = chip->client;
- unsigned char data;
- int ret;
-
- data = (unsigned char)reg;
- ret = i2c_master_send(i2c, &data, 1);
- if (ret < 0)
- return ret;
-
- ret = i2c_master_recv(i2c, dest, bytes);
- if (ret < 0)
- return ret;
- return 0;
-}
-
-static inline int pm8607_write_device(struct pm8607_chip *chip,
- int reg, int bytes, void *src)
-{
- struct i2c_client *i2c = chip->client;
- unsigned char buf[bytes + 1];
- int ret;
-
- buf[0] = (unsigned char)reg;
- memcpy(&buf[1], src, bytes);
-
- ret = i2c_master_send(i2c, buf, bytes + 1);
- if (ret < 0)
- return ret;
- return 0;
-}
-
-int pm8607_reg_read(struct pm8607_chip *chip, int reg)
-{
- unsigned char data;
- int ret;
-
- mutex_lock(&chip->io_lock);
- ret = chip->read(chip, reg, 1, &data);
- mutex_unlock(&chip->io_lock);
-
- if (ret < 0)
- return ret;
- else
- return (int)data;
-}
-EXPORT_SYMBOL(pm8607_reg_read);
-
-int pm8607_reg_write(struct pm8607_chip *chip, int reg,
- unsigned char data)
-{
- int ret;
-
- mutex_lock(&chip->io_lock);
- ret = chip->write(chip, reg, 1, &data);
- mutex_unlock(&chip->io_lock);
-
- return ret;
-}
-EXPORT_SYMBOL(pm8607_reg_write);
-
-int pm8607_bulk_read(struct pm8607_chip *chip, int reg,
- int count, unsigned char *buf)
-{
- int ret;
-
- mutex_lock(&chip->io_lock);
- ret = chip->read(chip, reg, count, buf);
- mutex_unlock(&chip->io_lock);
-
- return ret;
-}
-EXPORT_SYMBOL(pm8607_bulk_read);
-
-int pm8607_bulk_write(struct pm8607_chip *chip, int reg,
- int count, unsigned char *buf)
-{
- int ret;
-
- mutex_lock(&chip->io_lock);
- ret = chip->write(chip, reg, count, buf);
- mutex_unlock(&chip->io_lock);
-
- return ret;
-}
-EXPORT_SYMBOL(pm8607_bulk_write);
-
-int pm8607_set_bits(struct pm8607_chip *chip, int reg,
- unsigned char mask, unsigned char data)
-{
- unsigned char value;
- int ret;
-
- mutex_lock(&chip->io_lock);
- ret = chip->read(chip, reg, 1, &value);
- if (ret < 0)
- goto out;
- value &= ~mask;
- value |= data;
- ret = chip->write(chip, reg, 1, &value);
-out:
- mutex_unlock(&chip->io_lock);
- return ret;
-}
-EXPORT_SYMBOL(pm8607_set_bits);
-
-
-static const struct i2c_device_id pm8607_id_table[] = {
- { "88PM8607", 0 },
- {}
-};
-MODULE_DEVICE_TABLE(i2c, pm8607_id_table);
-
-
-static int __devinit pm8607_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct pm8607_platform_data *pdata = client->dev.platform_data;
- struct pm8607_chip *chip;
- int i, count;
- int ret;
-
- chip = kzalloc(sizeof(struct pm8607_chip), GFP_KERNEL);
- if (chip == NULL)
- return -ENOMEM;
-
- chip->client = client;
- chip->dev = &client->dev;
- chip->read = pm8607_read_device;
- chip->write = pm8607_write_device;
- i2c_set_clientdata(client, chip);
-
- mutex_init(&chip->io_lock);
- dev_set_drvdata(chip->dev, chip);
-
- ret = pm8607_reg_read(chip, PM8607_CHIP_ID);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret);
- goto out;
- }
- if ((ret & CHIP_ID_MASK) == CHIP_ID)
- dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n",
- ret);
- else {
- dev_err(chip->dev, "Failed to detect Marvell 88PM8607. "
- "Chip ID: %02x\n", ret);
- goto out;
- }
- chip->chip_id = ret;
-
- ret = pm8607_reg_read(chip, PM8607_BUCK3);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret);
- goto out;
- }
- if (ret & PM8607_BUCK3_DOUBLE)
- chip->buck3_double = 1;
-
- ret = pm8607_reg_read(chip, PM8607_MISC1);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret);
- goto out;
- }
- if (pdata->i2c_port == PI2C_PORT)
- ret |= PM8607_MISC1_PI2C;
- else
- ret &= ~PM8607_MISC1_PI2C;
- ret = pm8607_reg_write(chip, PM8607_MISC1, ret);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to write MISC1 register: %d\n", ret);
- goto out;
- }
-
-
- count = ARRAY_SIZE(pm8607_devs);
- for (i = 0; i < count; i++) {
- ret = mfd_add_devices(chip->dev, i, &pm8607_devs[i],
- 1, NULL, 0);
- if (ret != 0) {
- dev_err(chip->dev, "Failed to add subdevs\n");
- goto out;
- }
- }
-
- return 0;
-
-out:
- i2c_set_clientdata(client, NULL);
- kfree(chip);
- return ret;
-}
-
-static int __devexit pm8607_remove(struct i2c_client *client)
-{
- struct pm8607_chip *chip = i2c_get_clientdata(client);
-
- mfd_remove_devices(chip->dev);
- kfree(chip);
- return 0;
-}
-
-static struct i2c_driver pm8607_driver = {
- .driver = {
- .name = "88PM8607",
- .owner = THIS_MODULE,
- },
- .probe = pm8607_probe,
- .remove = __devexit_p(pm8607_remove),
- .id_table = pm8607_id_table,
-};
-
-static int __init pm8607_init(void)
-{
- int ret;
- ret = i2c_add_driver(&pm8607_driver);
- if (ret != 0)
- pr_err("Failed to register 88PM8607 I2C driver: %d\n", ret);
- return ret;
-}
-subsys_initcall(pm8607_init);
-
-static void __exit pm8607_exit(void)
-{
- i2c_del_driver(&pm8607_driver);
-}
-module_exit(pm8607_exit);
-
-MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM8607");
-MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
-MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Base driver for Marvell 88PM8607
+ *
+ * Copyright (C) 2009 Marvell International Ltd.
+ * Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/88pm8607.h>
+
+
+#define PM8607_REG_RESOURCE(_start, _end) \
+{ \
+ .start = PM8607_##_start, \
+ .end = PM8607_##_end, \
+ .flags = IORESOURCE_IO, \
+}
+
+static struct resource pm8607_regulator_resources[] = {
+ PM8607_REG_RESOURCE(BUCK1, BUCK1),
+ PM8607_REG_RESOURCE(BUCK2, BUCK2),
+ PM8607_REG_RESOURCE(BUCK3, BUCK3),
+ PM8607_REG_RESOURCE(LDO1, LDO1),
+ PM8607_REG_RESOURCE(LDO2, LDO2),
+ PM8607_REG_RESOURCE(LDO3, LDO3),
+ PM8607_REG_RESOURCE(LDO4, LDO4),
+ PM8607_REG_RESOURCE(LDO5, LDO5),
+ PM8607_REG_RESOURCE(LDO6, LDO6),
+ PM8607_REG_RESOURCE(LDO7, LDO7),
+ PM8607_REG_RESOURCE(LDO8, LDO8),
+ PM8607_REG_RESOURCE(LDO9, LDO9),
+ PM8607_REG_RESOURCE(LDO10, LDO10),
+ PM8607_REG_RESOURCE(LDO12, LDO12),
+ PM8607_REG_RESOURCE(LDO14, LDO14),
+};
+
+#define PM8607_REG_DEVS(_name, _id) \
+{ \
+ .name = "88pm8607-" #_name, \
+ .num_resources = 1, \
+ .resources = &pm8607_regulator_resources[PM8607_ID_##_id], \
+}
+
+static struct mfd_cell pm8607_devs[] = {
+ PM8607_REG_DEVS(buck1, BUCK1),
+ PM8607_REG_DEVS(buck2, BUCK2),
+ PM8607_REG_DEVS(buck3, BUCK3),
+ PM8607_REG_DEVS(ldo1, LDO1),
+ PM8607_REG_DEVS(ldo2, LDO2),
+ PM8607_REG_DEVS(ldo3, LDO3),
+ PM8607_REG_DEVS(ldo4, LDO4),
+ PM8607_REG_DEVS(ldo5, LDO5),
+ PM8607_REG_DEVS(ldo6, LDO6),
+ PM8607_REG_DEVS(ldo7, LDO7),
+ PM8607_REG_DEVS(ldo8, LDO8),
+ PM8607_REG_DEVS(ldo9, LDO9),
+ PM8607_REG_DEVS(ldo10, LDO10),
+ PM8607_REG_DEVS(ldo12, LDO12),
+ PM8607_REG_DEVS(ldo14, LDO14),
+};
+
+int pm860x_device_init(struct pm8607_chip *chip,
+ struct pm8607_platform_data *pdata)
+{
+ int i, count;
+ int ret;
+
+ ret = pm8607_reg_read(chip, PM8607_CHIP_ID);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret);
+ goto out;
+ }
+ if ((ret & PM8607_ID_MASK) == PM8607_ID)
+ dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n",
+ ret);
+ else {
+ dev_err(chip->dev, "Failed to detect Marvell 88PM8607. "
+ "Chip ID: %02x\n", ret);
+ goto out;
+ }
+ chip->chip_id = ret;
+
+ ret = pm8607_reg_read(chip, PM8607_BUCK3);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret);
+ goto out;
+ }
+ if (ret & PM8607_BUCK3_DOUBLE)
+ chip->buck3_double = 1;
+
+ ret = pm8607_reg_read(chip, PM8607_MISC1);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret);
+ goto out;
+ }
+ if (pdata->i2c_port == PI2C_PORT)
+ ret |= PM8607_MISC1_PI2C;
+ else
+ ret &= ~PM8607_MISC1_PI2C;
+ ret = pm8607_reg_write(chip, PM8607_MISC1, ret);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to write MISC1 register: %d\n", ret);
+ goto out;
+ }
+
+ count = ARRAY_SIZE(pm8607_devs);
+ for (i = 0; i < count; i++) {
+ ret = mfd_add_devices(chip->dev, i, &pm8607_devs[i],
+ 1, NULL, 0);
+ if (ret != 0) {
+ dev_err(chip->dev, "Failed to add subdevs\n");
+ goto out;
+ }
+ }
+out:
+ return ret;
+}
+
+void pm8607_device_exit(struct pm8607_chip *chip)
+{
+ mfd_remove_devices(chip->dev);
+}
+
+MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM8607");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * I2C driver for Marvell 88PM8607
+ *
+ * Copyright (C) 2009 Marvell International Ltd.
+ * Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/mfd/88pm8607.h>
+
+static inline int pm8607_read_device(struct pm8607_chip *chip,
+ int reg, int bytes, void *dest)
+{
+ struct i2c_client *i2c = chip->client;
+ unsigned char data;
+ int ret;
+
+ data = (unsigned char)reg;
+ ret = i2c_master_send(i2c, &data, 1);
+ if (ret < 0)
+ return ret;
+
+ ret = i2c_master_recv(i2c, dest, bytes);
+ if (ret < 0)
+ return ret;
+ return 0;
+}
+
+static inline int pm8607_write_device(struct pm8607_chip *chip,
+ int reg, int bytes, void *src)
+{
+ struct i2c_client *i2c = chip->client;
+ unsigned char buf[bytes + 1];
+ int ret;
+
+ buf[0] = (unsigned char)reg;
+ memcpy(&buf[1], src, bytes);
+
+ ret = i2c_master_send(i2c, buf, bytes + 1);
+ if (ret < 0)
+ return ret;
+ return 0;
+}
+
+int pm8607_reg_read(struct pm8607_chip *chip, int reg)
+{
+ unsigned char data;
+ int ret;
+
+ mutex_lock(&chip->io_lock);
+ ret = chip->read(chip, reg, 1, &data);
+ mutex_unlock(&chip->io_lock);
+
+ if (ret < 0)
+ return ret;
+ else
+ return (int)data;
+}
+EXPORT_SYMBOL(pm8607_reg_read);
+
+int pm8607_reg_write(struct pm8607_chip *chip, int reg,
+ unsigned char data)
+{
+ int ret;
+
+ mutex_lock(&chip->io_lock);
+ ret = chip->write(chip, reg, 1, &data);
+ mutex_unlock(&chip->io_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL(pm8607_reg_write);
+
+int pm8607_bulk_read(struct pm8607_chip *chip, int reg,
+ int count, unsigned char *buf)
+{
+ int ret;
+
+ mutex_lock(&chip->io_lock);
+ ret = chip->read(chip, reg, count, buf);
+ mutex_unlock(&chip->io_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL(pm8607_bulk_read);
+
+int pm8607_bulk_write(struct pm8607_chip *chip, int reg,
+ int count, unsigned char *buf)
+{
+ int ret;
+
+ mutex_lock(&chip->io_lock);
+ ret = chip->write(chip, reg, count, buf);
+ mutex_unlock(&chip->io_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL(pm8607_bulk_write);
+
+int pm8607_set_bits(struct pm8607_chip *chip, int reg,
+ unsigned char mask, unsigned char data)
+{
+ unsigned char value;
+ int ret;
+
+ mutex_lock(&chip->io_lock);
+ ret = chip->read(chip, reg, 1, &value);
+ if (ret < 0)
+ goto out;
+ value &= ~mask;
+ value |= data;
+ ret = chip->write(chip, reg, 1, &value);
+out:
+ mutex_unlock(&chip->io_lock);
+ return ret;
+}
+EXPORT_SYMBOL(pm8607_set_bits);
+
+
+static const struct i2c_device_id pm860x_id_table[] = {
+ { "88PM8607", 0 },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, pm860x_id_table);
+
+static int __devinit pm860x_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct pm8607_platform_data *pdata = client->dev.platform_data;
+ struct pm8607_chip *chip;
+ int ret;
+
+ chip = kzalloc(sizeof(struct pm8607_chip), GFP_KERNEL);
+ if (chip == NULL)
+ return -ENOMEM;
+
+ chip->client = client;
+ chip->dev = &client->dev;
+ chip->read = pm8607_read_device;
+ chip->write = pm8607_write_device;
+ memcpy(&chip->id, id, sizeof(struct i2c_device_id));
+ i2c_set_clientdata(client, chip);
+
+ mutex_init(&chip->io_lock);
+ dev_set_drvdata(chip->dev, chip);
+
+ ret = pm860x_device_init(chip, pdata);
+ if (ret < 0)
+ goto out;
+
+
+ return 0;
+
+out:
+ i2c_set_clientdata(client, NULL);
+ kfree(chip);
+ return ret;
+}
+
+static int __devexit pm860x_remove(struct i2c_client *client)
+{
+ struct pm8607_chip *chip = i2c_get_clientdata(client);
+
+ kfree(chip);
+ return 0;
+}
+
+static struct i2c_driver pm860x_driver = {
+ .driver = {
+ .name = "88PM860x",
+ .owner = THIS_MODULE,
+ },
+ .probe = pm860x_probe,
+ .remove = __devexit_p(pm860x_remove),
+ .id_table = pm860x_id_table,
+};
+
+static int __init pm860x_i2c_init(void)
+{
+ int ret;
+ ret = i2c_add_driver(&pm860x_driver);
+ if (ret != 0)
+ pr_err("Failed to register 88PM860x I2C driver: %d\n", ret);
+ return ret;
+}
+subsys_initcall(pm860x_i2c_init);
+
+static void __exit pm860x_i2c_exit(void)
+{
+ i2c_del_driver(&pm860x_driver);
+}
+module_exit(pm860x_i2c_exit);
+
+MODULE_DESCRIPTION("I2C Driver for Marvell 88PM860x");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");
# Makefile for multifunction miscellaneous devices
#
+obj-$(CONFIG_MFD_88PM8607) += 88pm860x-core.o 88pm860x-i2c.o
obj-$(CONFIG_MFD_SM501) += sm501.o
obj-$(CONFIG_MFD_ASIC3) += asic3.o tmio_core.o
obj-$(CONFIG_MFD_SH_MOBILE_SDHI) += sh_mobile_sdhi.o
obj-$(CONFIG_AB3100_OTP) += ab3100-otp.o
obj-$(CONFIG_AB4500_CORE) += ab4500-core.o
obj-$(CONFIG_MFD_TIMBERDALE) += timberdale.o
-obj-$(CONFIG_MFD_88PM8607) += 88pm8607.o
obj-$(CONFIG_PMIC_ADP5520) += adp5520.o
PM8607_ID_RG_MAX,
};
-#define CHIP_ID (0x40)
-#define CHIP_ID_MASK (0xF8)
+#define PM8607_ID (0x40) /* 8607 chip ID */
+#define PM8607_ID_MASK (0xF8) /* 8607 chip ID mask */
/* Interrupt Registers */
#define PM8607_STATUS_1 (0x01)
struct device *dev;
struct mutex io_lock;
struct i2c_client *client;
+ struct i2c_device_id id;
int (*read)(struct pm8607_chip *chip, int reg, int bytes, void *dest);
int (*write)(struct pm8607_chip *chip, int reg, int bytes, void *src);
unsigned char *);
extern int pm8607_set_bits(struct pm8607_chip *, int, unsigned char,
unsigned char);
-#endif /* __LINUX_MFD_88PM8607_H */
+
+extern int pm860x_device_init(struct pm8607_chip *chip,
+ struct pm8607_platform_data *pdata);
+extern void pm860x_device_exit(struct pm8607_chip *chip);
+
+#endif /* __LINUX_MFD_88PM860X_H */
projects / openwrt / staging / blogic.git / commitdiff