Message-Id: <1408627817-16171-1-git-send-email-zyw@rock-chips.com>
Date:	Thu, 21 Aug 2014 21:30:17 +0800
From:	Chris Zhong <zyw@...k-chips.com>
To:	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	sameo@...ux.intel.com, lee.jones@...aro.org, lgirdwood@...il.com,
	broonie@...nel.org, a.zummo@...ertech.it, mturquette@...aro.org
Cc:	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	rtc-linux@...glegroups.com, grant.likely@...aro.org,
	hl@...k-chips.com, huangtao@...k-chips.com, cf@...k-chips.com,
	zhangqing@...k-chips.com, xxx@...k-chips.com,
	dianders@...omium.org, heiko@...ech.de, olof@...om.net,
	sonnyrao@...omium.org, dtor@...omium.org,
	javier.martinez@...labora.co.uk, kever.yang@...k-chips.com,
	Chris Zhong <zyw@...k-chips.com>
Subject: [PATCH v3 2/5] MFD: RK808: Add new mfd driver for RK808

The RK808 chip is a power management IC for multimedia and handheld
devices. It contains the following components:

- Regulators
- RTC

The rk808 core driver is registered as a platform driver and provides
communication through I2C with the host device for the different
components.

Signed-off-by: Chris Zhong <zyw@...k-chips.com>

---

Changes in v3: None
Changes in v2:
Adviced by Mark Browm:
- change of_find_node_by_name to find_child_by_name
- use RK808_NUM_REGULATORS as the name of the constant
- create a pdata when missing platform data
- use the rk808_reg name to supply_regulator name
- replace regulator_register with devm_regulator_register
- some other problem with coding style

 drivers/mfd/Kconfig       |   13 ++
 drivers/mfd/Makefile      |    1 +
 drivers/mfd/rk808.c       |  296 +++++++++++++++++++++++++++++++++++++++++++++
 include/linux/mfd/rk808.h |  220 +++++++++++++++++++++++++++++++++
 4 files changed, 530 insertions(+)
 create mode 100644 drivers/mfd/rk808.c
 create mode 100644 include/linux/mfd/rk808.h

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index de5abf2..1df133e 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -582,6 +582,19 @@ config MFD_RC5T583
 	  Additional drivers must be enabled in order to use the
 	  different functionality of the device.
 
+config MFD_RK808
+	tristate "Rockchip RK808 Power Management chip"
+	depends on I2C
+	select MFD_CORE
+	select REGMAP_I2C
+	select REGMAP_IRQ
+	help
+	  Select this option to get support for the RK808 Power
+	  Management system device.
+	  This driver provides common support for accessing the device
+	  through i2c interface. The device supports multiple sub-devices
+	  like interrupts, RTC, LDO and DCDC regulators, onkey.
+
 config MFD_SEC_CORE
 	bool "SAMSUNG Electronics PMIC Series Support"
 	depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index f001487..dbc28e7 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -160,6 +160,7 @@ obj-$(CONFIG_MFD_INTEL_MSIC)	+= intel_msic.o
 obj-$(CONFIG_MFD_PALMAS)	+= palmas.o
 obj-$(CONFIG_MFD_VIPERBOARD)    += viperboard.o
 obj-$(CONFIG_MFD_RC5T583)	+= rc5t583.o rc5t583-irq.o
+obj-$(CONFIG_MFD_RK808)		+= rk808.o
 obj-$(CONFIG_MFD_SEC_CORE)	+= sec-core.o sec-irq.o
 obj-$(CONFIG_MFD_SYSCON)	+= syscon.o
 obj-$(CONFIG_MFD_LM3533)	+= lm3533-core.o lm3533-ctrlbank.o
diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
new file mode 100644
index 0000000..372e5ed
--- /dev/null
+++ b/drivers/mfd/rk808.c
@@ -0,0 +1,296 @@
+/*
+ * Mfd core driver for Rockchip RK808
+ *
+ * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * Author: Chris Zhong <zyw@...k-chips.com>
+ * Author: Zhang Qing <zhangqing@...k-chips.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ */
+
+#include <linux/bug.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/rk808.h>
+#include <linux/mfd/core.h>
+#include <linux/mutex.h>
+#include <linux/module.h>
+#include <linux/of_irq.h>
+#include <linux/of_gpio.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+struct rk808_reg_data {
+	int addr;
+	int mask;
+	int value;
+};
+
+static struct rk808 *g_rk808;
+
+static struct resource rtc_resources[] = {
+	{
+		.start  = RK808_IRQ_RTC_ALARM,
+		.end    = RK808_IRQ_RTC_ALARM,
+		.flags  = IORESOURCE_IRQ,
+	}
+};
+
+static const struct mfd_cell rk808s[] = {
+	{
+		.name = "rk808-regulator",
+	},
+	{
+		.name = "rk808-rtc",
+		.num_resources = ARRAY_SIZE(rtc_resources),
+		.resources = &rtc_resources[0],
+	},
+	{
+		.name = "rk808-clkout",
+	},
+};
+
+static const struct rk808_reg_data pre_init_reg[] = {
+	{RK808_BUCK3_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_150MA},
+	{RK808_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_200MA},
+	{RK808_BOOST_CONFIG_REG, BOOST_ILMIN_MASK, BOOST_ILMIN_100MA},
+	{RK808_BUCK1_CONFIG_REG, BUCK1_RATE_MASK,  BUCK_ILMIN_200MA},
+	{RK808_BUCK2_CONFIG_REG, BUCK2_RATE_MASK,  BUCK_ILMIN_200MA},
+	{RK808_VB_MON_REG,       MASK_ALL,  VB_LO_ACT | VB_LO_SEL_3500MV},
+	{RK808_INT_STS_REG1,     MASK_NONE, 0},
+	{RK808_INT_STS_REG2,     MASK_NONE, 0},
+};
+
+static const struct regmap_irq rk808_irqs[] = {
+	/* INT_STS */
+	[RK808_IRQ_VOUT_LO] = {
+		.mask = RK808_IRQ_VOUT_LO_MSK,
+		.reg_offset = 0,
+	},
+	[RK808_IRQ_VB_LO] = {
+		.mask = RK808_IRQ_VB_LO_MSK,
+		.reg_offset = 0,
+	},
+	[RK808_IRQ_PWRON] = {
+		.mask = RK808_IRQ_PWRON_MSK,
+		.reg_offset = 0,
+	},
+	[RK808_IRQ_PWRON_LP] = {
+		.mask = RK808_IRQ_PWRON_LP_MSK,
+		.reg_offset = 0,
+	},
+	[RK808_IRQ_HOTDIE] = {
+		.mask = RK808_IRQ_HOTDIE_MSK,
+		.reg_offset = 0,
+	},
+	[RK808_IRQ_RTC_ALARM] = {
+		.mask = RK808_IRQ_RTC_ALARM_MSK,
+		.reg_offset = 0,
+	},
+	[RK808_IRQ_RTC_PERIOD] = {
+		.mask = RK808_IRQ_RTC_PERIOD_MSK,
+		.reg_offset = 0,
+	},
+
+	/* INT_STS2 */
+	[RK808_IRQ_PLUG_IN_INT] = {
+		.mask = RK808_IRQ_PLUG_IN_INT_MSK,
+		.reg_offset = 1,
+	},
+	[RK808_IRQ_PLUG_OUT_INT] = {
+		.mask = RK808_IRQ_PLUG_OUT_INT_MSK,
+		.reg_offset = 1,
+	},
+};
+
+static struct regmap_irq_chip rk808_irq_chip = {
+	.name = "rk808",
+	.irqs = rk808_irqs,
+	.num_irqs = ARRAY_SIZE(rk808_irqs),
+	.num_regs = 2,
+	.irq_reg_stride = 2,
+	.status_base = RK808_INT_STS_REG1,
+	.mask_base = RK808_INT_STS_MSK_REG1,
+	.ack_base = RK808_INT_STS_REG1,
+};
+
+static struct rk808_board *rk808_parse_dt(struct device *dev)
+{
+	struct rk808_board *pdata;
+	struct device_node *np = dev->of_node;
+
+	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return NULL;
+
+	pdata->pm_off = of_property_read_bool(np,
+					"rockchip,system-power-controller");
+
+	return pdata;
+}
+
+static void rk808_device_shutdown(void)
+{
+	int ret;
+	struct rk808 *rk808 = g_rk808;
+
+	if (!rk808) {
+		dev_err(rk808->dev, "%s have no g_rk808\n", __func__);
+		return;
+	}
+
+	ret = regmap_update_bits(rk808->regmap,
+				 RK808_DEVCTRL_REG,
+				 DEV_OFF_RST, DEV_OFF_RST);
+	if (ret < 0)
+		dev_err(rk808->dev, "rk808 power off error!\n");
+}
+
+static int rk808_pre_init(struct rk808 *rk808)
+{
+	int i;
+	int ret = 0;
+	int table_size = sizeof(pre_init_reg) / sizeof(struct rk808_reg_data);
+
+	for (i = 0; i < table_size; i++) {
+		ret = regmap_update_bits(rk808->regmap, pre_init_reg[i].addr,
+					 pre_init_reg[i].mask,
+					 pre_init_reg[i].value);
+		if (ret < 0) {
+			dev_err(rk808->dev,
+				"0x%x write err\n", pre_init_reg[i].addr);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int rk808_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id)
+{
+	int ret;
+	struct rk808_board *pdata = dev_get_platdata(&client->dev);
+	struct rk808 *rk808;
+
+	if (!pdata) {
+		pdata = rk808_parse_dt(&client->dev);
+		if (IS_ERR(pdata))
+			return PTR_ERR(pdata);
+	}
+
+	rk808 = devm_kzalloc(&client->dev, sizeof(struct rk808), GFP_KERNEL);
+	if (!rk808)
+		return -ENOMEM;
+
+	rk808->pdata = pdata;
+	rk808->i2c = client;
+	rk808->dev = &client->dev;
+	i2c_set_clientdata(client, rk808);
+
+	rk808->regmap = devm_regmap_init_i2c(client, &rk808_regmap_config);
+	if (IS_ERR(rk808->regmap)) {
+		ret = PTR_ERR(rk808->regmap);
+		dev_err(rk808->dev, "regmap initialization failed\n");
+		return ret;
+	}
+
+	ret = rk808_pre_init(rk808);
+	if (ret < 0) {
+		dev_err(rk808->dev, "The rk808_pre_init failed %d\n", ret);
+		return ret;
+	}
+
+	pdata->irq = client->irq;
+	pdata->irq_base = -1;
+
+	if (!pdata->irq) {
+		dev_err(rk808->dev, "No interrupt support, no core IRQ\n");
+		return -EINVAL;
+	}
+
+	ret = regmap_add_irq_chip(rk808->regmap, pdata->irq,
+				  IRQF_ONESHOT, pdata->irq_base,
+				  &rk808_irq_chip, &rk808->irq_data);
+	if (ret < 0) {
+		dev_err(rk808->dev, "Failed to add irq_chip %d\n", ret);
+		return ret;
+	}
+
+	ret = mfd_add_devices(rk808->dev, -1,
+			      rk808s, ARRAY_SIZE(rk808s),
+			      NULL, 0, regmap_irq_get_domain(rk808->irq_data));
+	if (ret < 0) {
+		dev_err(rk808->dev, "failed to add MFD devices %d\n", ret);
+		goto err_irq_init_done;
+	}
+
+	g_rk808 = rk808;
+	if (pdata->pm_off && !pm_power_off)
+		pm_power_off = rk808_device_shutdown;
+
+	return 0;
+
+err_irq_init_done:
+	regmap_del_irq_chip(pdata->irq, rk808->irq_data);
+	return ret;
+}
+
+static int rk808_remove(struct i2c_client *i2c)
+{
+	struct rk808 *rk808 = i2c_get_clientdata(i2c);
+	struct rk808_board *pdata = rk808->pdata;
+
+	regmap_del_irq_chip(pdata->irq, rk808->irq_data);
+	mfd_remove_devices(rk808->dev);
+	return 0;
+}
+
+static struct of_device_id rk808_of_match[] = {
+	{ .compatible = "rockchip,rk808"},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, rk808_of_match);
+
+static const struct i2c_device_id rk808_ids[] = {
+	 { "rk808", 0},
+	 { }
+};
+
+MODULE_DEVICE_TABLE(i2c, rk808_ids);
+
+static struct i2c_driver rk808_i2c_driver = {
+	.driver = {
+		.name = "rk808",
+		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(rk808_of_match),
+	},
+	.probe    = rk808_probe,
+	.remove   = rk808_remove,
+	.id_table = rk808_ids,
+};
+
+module_i2c_driver(rk808_i2c_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Chris Zhong <zyw@...k-chips.com>");
+MODULE_AUTHOR("Zhang Qing<zhangqing@...k-chips.com>");
+MODULE_DESCRIPTION("rk808 PMIC driver");
diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h
new file mode 100644
index 0000000..cf4f497
--- /dev/null
+++ b/include/linux/mfd/rk808.h
@@ -0,0 +1,220 @@
+/*
+ * rk808.h for Rockchip RK808
+ *
+ * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * Author: Chris Zhong <zyw@...k-chips.com>
+ * Author: Zhang Qing <zhangqing@...k-chips.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ */
+
+#ifndef __LINUX_REGULATOR_rk808_H
+#define __LINUX_REGULATOR_rk808_H
+
+#include <linux/regulator/machine.h>
+#include <linux/regmap.h>
+
+/*
+ * rk808 Global Register Map.
+ */
+
+#define RK808_DCDC1	0 /* (0+RK808_START) */
+#define RK808_LDO1	4 /* (4+RK808_START) */
+#define RK808_NUM_REGULATORS   14
+
+#define RK808_ID_DCDC1	0
+#define RK808_ID_DCDC2	1
+#define RK808_ID_DCDC3	2
+#define RK808_ID_DCDC4	3
+#define RK808_ID_LDO1	4
+#define RK808_ID_LDO2	5
+#define RK808_ID_LDO3	6
+#define RK808_ID_LDO4	7
+#define RK808_ID_LDO5	8
+#define RK808_ID_LDO6	9
+#define RK808_ID_LDO7	10
+#define RK808_ID_LDO8	11
+#define RK808_ID_SWITCH1	12
+#define RK808_ID_SWITCH2	13
+
+#define RK808_SECONDS_REG	0x00
+#define RK808_MINUTES_REG	0x01
+#define RK808_HOURS_REG		0x02
+#define RK808_DAYS_REG		0x03
+#define RK808_MONTHS_REG	0x04
+#define RK808_YEARS_REG		0x05
+#define RK808_WEEKS_REG		0x06
+#define RK808_ALARM_SECONDS_REG	0x08
+#define RK808_ALARM_MINUTES_REG	0x09
+#define RK808_ALARM_HOURS_REG	0x0a
+#define RK808_ALARM_DAYS_REG	0x0b
+#define RK808_ALARM_MONTHS_REG	0x0c
+#define RK808_ALARM_YEARS_REG	0x0d
+#define RK808_RTC_CTRL_REG	0x10
+#define RK808_RTC_STATUS_REG	0x11
+#define RK808_RTC_INT_REG	0x12
+#define RK808_RTC_COMP_LSB_REG	0x13
+#define RK808_RTC_COMP_MSB_REG	0x14
+#define RK808_CLK32OUT_REG	0x20
+#define RK808_VB_MON_REG	0x21
+#define RK808_THERMAL_REG	0x22
+#define RK808_DCDC_EN_REG	0x23
+#define RK808_LDO_EN_REG	0x24
+#define RK808_SLEEP_SET_OFF_REG1	0x25
+#define RK808_SLEEP_SET_OFF_REG2	0x26
+#define RK808_DCDC_UV_STS_REG	0x27
+#define RK808_DCDC_UV_ACT_REG	0x28
+#define RK808_LDO_UV_STS_REG	0x29
+#define RK808_LDO_UV_ACT_REG	0x2a
+#define RK808_DCDC_PG_REG	0x2b
+#define RK808_LDO_PG_REG	0x2c
+#define RK808_VOUT_MON_TDB_REG	0x2d
+#define RK808_BUCK1_CONFIG_REG		0x2e
+#define RK808_BUCK1_ON_VSEL_REG		0x2f
+#define RK808_BUCK1_SLP_VSEL_REG	0x30
+#define RK808_BUCK1_DVS_VSEL_REG	0x31
+#define RK808_BUCK2_CONFIG_REG		0x32
+#define RK808_BUCK2_ON_VSEL_REG		0x33
+#define RK808_BUCK2_SLP_VSEL_REG	0x34
+#define RK808_BUCK2_DVS_VSEL_REG	0x35
+#define RK808_BUCK3_CONFIG_REG		0x36
+#define RK808_BUCK4_CONFIG_REG		0x37
+#define RK808_BUCK4_ON_VSEL_REG		0x38
+#define RK808_BUCK4_SLP_VSEL_REG	0x39
+#define RK808_BOOST_CONFIG_REG		0x3a
+#define RK808_LDO1_ON_VSEL_REG		0x3b
+#define RK808_LDO1_SLP_VSEL_REG		0x3c
+#define RK808_LDO2_ON_VSEL_REG		0x3d
+#define RK808_LDO2_SLP_VSEL_REG		0x3e
+#define RK808_LDO3_ON_VSEL_REG		0x3f
+#define RK808_LDO3_SLP_VSEL_REG		0x40
+#define RK808_LDO4_ON_VSEL_REG		0x41
+#define RK808_LDO4_SLP_VSEL_REG		0x42
+#define RK808_LDO5_ON_VSEL_REG		0x43
+#define RK808_LDO5_SLP_VSEL_REG		0x44
+#define RK808_LDO6_ON_VSEL_REG		0x45
+#define RK808_LDO6_SLP_VSEL_REG		0x46
+#define RK808_LDO7_ON_VSEL_REG		0x47
+#define RK808_LDO7_SLP_VSEL_REG		0x48
+#define RK808_LDO8_ON_VSEL_REG		0x49
+#define RK808_LDO8_SLP_VSEL_REG		0x4a
+#define RK808_DEVCTRL_REG	0x4b
+#define RK808_INT_STS_REG1	0x4c
+#define RK808_INT_STS_MSK_REG1	0x4d
+#define RK808_INT_STS_REG2	0x4e
+#define RK808_INT_STS_MSK_REG2	0x4f
+#define RK808_IO_POL_REG	0x50
+
+/* IRQ Definitions */
+#define RK808_IRQ_VOUT_LO	0
+#define RK808_IRQ_VB_LO		1
+#define RK808_IRQ_PWRON		2
+#define RK808_IRQ_PWRON_LP	3
+#define RK808_IRQ_HOTDIE	4
+#define RK808_IRQ_RTC_ALARM	5
+#define RK808_IRQ_RTC_PERIOD	6
+#define RK808_IRQ_PLUG_IN_INT	7
+#define RK808_IRQ_PLUG_OUT_INT	8
+#define RK808_NUM_IRQ		9
+
+#define RK808_IRQ_VOUT_LO_MSK		BIT(0)
+#define RK808_IRQ_VB_LO_MSK		BIT(1)
+#define RK808_IRQ_PWRON_MSK		BIT(2)
+#define RK808_IRQ_PWRON_LP_MSK		BIT(3)
+#define RK808_IRQ_HOTDIE_MSK		BIT(4)
+#define RK808_IRQ_RTC_ALARM_MSK		BIT(5)
+#define RK808_IRQ_RTC_PERIOD_MSK	BIT(6)
+#define RK808_IRQ_PLUG_IN_INT_MSK	BIT(0)
+#define RK808_IRQ_PLUG_OUT_INT_MSK	BIT(1)
+
+#define RK808_VBAT_LOW_2V8	0x00
+#define RK808_VBAT_LOW_2V9	0x01
+#define RK808_VBAT_LOW_3V0	0x02
+#define RK808_VBAT_LOW_3V1	0x03
+#define RK808_VBAT_LOW_3V2	0x04
+#define RK808_VBAT_LOW_3V3	0x05
+#define RK808_VBAT_LOW_3V4	0x06
+#define RK808_VBAT_LOW_3V5	0x07
+#define VBAT_LOW_VOL_MASK	(0x07 << 0)
+#define EN_VABT_LOW_SHUT_DOWN	(0x00 << 4)
+#define EN_VBAT_LOW_IRQ		(0x1 << 4)
+#define VBAT_LOW_ACT_MASK	(0x1 << 4)
+
+#define BUCK_ILMIN_MASK		(7 << 0)
+#define BOOST_ILMIN_MASK	(7 << 0)
+#define BUCK1_RATE_MASK		(3<<3)
+#define BUCK2_RATE_MASK		(3<<3)
+#define MASK_ALL	0xff
+#define MASK_NONE	0
+
+#define SWITCH2_EN	BIT(6)
+#define SWITCH1_EN	BIT(5)
+#define DEV_OFF_RST	BIT(3)
+
+#define VB_LO_ACT		BIT(4)
+#define VB_LO_SEL_3500MV	(7<<0)
+
+#define VOUT_LO_INT	BIT(0)
+#define CLK32KOUT2_EN	BIT(0)
+
+enum {
+	BUCK_ILMIN_50MA,
+	BUCK_ILMIN_100MA,
+	BUCK_ILMIN_150MA,
+	BUCK_ILMIN_200MA,
+	BUCK_ILMIN_250MA,
+	BUCK_ILMIN_300MA,
+	BUCK_ILMIN_350MA,
+	BUCK_ILMIN_400MA,
+};
+
+enum {
+	BOOST_ILMIN_75MA,
+	BOOST_ILMIN_100MA,
+	BOOST_ILMIN_125MA,
+	BOOST_ILMIN_150MA,
+	BOOST_ILMIN_175MA,
+	BOOST_ILMIN_200MA,
+	BOOST_ILMIN_225MA,
+	BOOST_ILMIN_250MA,
+};
+
+struct rk808_board {
+	int irq;
+	int irq_base;
+	int wakeup;
+	bool pm_off;
+	struct regulator_init_data *rk808_init_data[RK808_NUM_REGULATORS];
+	struct device_node *of_node[RK808_NUM_REGULATORS];
+	int pmic_sleep_gpio;
+	unsigned int dcdc_slp_voltage[3]; /* buckx_voltage in uV */
+	unsigned int ldo_slp_voltage[7];
+};
+
+struct rk808 {
+	struct rk808_board *pdata;
+	struct device *dev;
+	struct i2c_client *i2c;
+	int num_regulators;
+	struct regulator_dev **rdev;
+	struct regmap_irq_chip_data *irq_data;
+	struct regmap *regmap;
+	unsigned int dcdc_slp_voltage[3]; /* buckx_voltage in uV */
+	unsigned int ldo_slp_voltage[7];
+};
+
+static const struct regmap_config rk808_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = RK808_IO_POL_REG,
+};
+#endif
-- 
1.7.9.5


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