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
- Clkout
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@rock-chips.com>
Signed-off-by: Zhang Qing <zhangqing@rock-chips.com>
Tested-by: Heiko <heiko@sntech.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h
new file mode 100644
index 0000000..fb09312
--- /dev/null
+++ b/include/linux/mfd/rk808.h
@@ -0,0 +1,196 @@
+/*
+ * rk808.h for Rockchip RK808
+ *
+ * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * Author: Chris Zhong <zyw@rock-chips.com>
+ * Author: Zhang Qing <zhangqing@rock-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
+
+enum rk808_reg {
+ RK808_ID_DCDC1,
+ RK808_ID_DCDC2,
+ RK808_ID_DCDC3,
+ RK808_ID_DCDC4,
+ RK808_ID_LDO1,
+ RK808_ID_LDO2,
+ RK808_ID_LDO3,
+ RK808_ID_LDO4,
+ RK808_ID_LDO5,
+ RK808_ID_LDO6,
+ RK808_ID_LDO7,
+ RK808_ID_LDO8,
+ RK808_ID_SWITCH1,
+ RK808_ID_SWITCH2,
+};
+
+#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 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 {
+ struct i2c_client *i2c;
+ struct regmap_irq_chip_data *irq_data;
+ struct regmap *regmap;
+};
+#endif /* __LINUX_REGULATOR_rk808_H */