mfd: Split 88pm8607 driver
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>
diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c
new file mode 100644
index 0000000..d1464e5
--- /dev/null
+++ b/drivers/mfd/88pm860x-core.c
@@ -0,0 +1,134 @@
+/*
+ * 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");