mfd: rk808: Add RK818 support

The RK818 chip is a Power Management IC (PMIC) for multimedia and handheld
devices. It contains the following components:

- Regulators
- RTC
- Clocking
- Battery support

Both RK808 and RK818 chips are using a similar register map,
so we can reuse the RTC and Clocking functionality.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Tested-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 145 insertions, 9 deletions

diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h
index 441b6ee72691..fc5db6fcb57d 100644
--- a/include/linux/mfd/rk808.h
+++ b/include/linux/mfd/rk808.h
@@ -1,11 +1,15 @@
 /*
- * rk808.h for Rockchip RK808
+ * Register definitions for Rockchip's RK808/RK818 PMIC
  *
  * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
  *
  * Author: Chris Zhong <zyw@rock-chips.com>
  * Author: Zhang Qing <zhangqing@rock-chips.com>
  *
+ * Copyright (C) 2016 PHYTEC Messtechnik GmbH
+ *
+ * Author: Wadim Egorov <w.egorov@phytec.de>
+ *
  * 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.
@@ -16,8 +20,8 @@
  * more details.
  */
 
-#ifndef __LINUX_REGULATOR_rk808_H
-#define __LINUX_REGULATOR_rk808_H
+#ifndef __LINUX_REGULATOR_RK808_H
+#define __LINUX_REGULATOR_RK808_H
 
 #include <linux/regulator/machine.h>
 #include <linux/regmap.h>
@@ -28,7 +32,7 @@
 
 #define RK808_DCDC1     0 /* (0+RK808_START) */
 #define RK808_LDO1      4 /* (4+RK808_START) */
-#define RK808_NUM_REGULATORS   14
+#define RK808_NUM_REGULATORS    14
 
 enum rk808_reg {
         RK808_ID_DCDC1,
@@ -65,6 +69,8 @@ enum rk808_reg {
 #define RK808_RTC_INT_REG       0x12
 #define RK808_RTC_COMP_LSB_REG  0x13
 #define RK808_RTC_COMP_MSB_REG  0x14
+#define RK808_ID_MSB            0x17
+#define RK808_ID_LSB            0x18
 #define RK808_CLK32OUT_REG      0x20
 #define RK808_VB_MON_REG        0x21
 #define RK808_THERMAL_REG       0x22
@@ -115,7 +121,92 @@ enum rk808_reg {
 #define RK808_INT_STS_MSK_REG2  0x4f
 #define RK808_IO_POL_REG        0x50
 
-/* IRQ Definitions */
+/* RK818 */
+#define RK818_DCDC1                     0
+#define RK818_LDO1                      4
+#define RK818_NUM_REGULATORS            17
+
+enum rk818_reg {
+        RK818_ID_DCDC1,
+        RK818_ID_DCDC2,
+        RK818_ID_DCDC3,
+        RK818_ID_DCDC4,
+        RK818_ID_BOOST,
+        RK818_ID_LDO1,
+        RK818_ID_LDO2,
+        RK818_ID_LDO3,
+        RK818_ID_LDO4,
+        RK818_ID_LDO5,
+        RK818_ID_LDO6,
+        RK818_ID_LDO7,
+        RK818_ID_LDO8,
+        RK818_ID_LDO9,
+        RK818_ID_SWITCH,
+        RK818_ID_HDMI_SWITCH,
+        RK818_ID_OTG_SWITCH,
+};
+
+#define RK818_DCDC_EN_REG               0x23
+#define RK818_LDO_EN_REG                0x24
+#define RK818_SLEEP_SET_OFF_REG1        0x25
+#define RK818_SLEEP_SET_OFF_REG2        0x26
+#define RK818_DCDC_UV_STS_REG           0x27
+#define RK818_DCDC_UV_ACT_REG           0x28
+#define RK818_LDO_UV_STS_REG            0x29
+#define RK818_LDO_UV_ACT_REG            0x2a
+#define RK818_DCDC_PG_REG               0x2b
+#define RK818_LDO_PG_REG                0x2c
+#define RK818_VOUT_MON_TDB_REG          0x2d
+#define RK818_BUCK1_CONFIG_REG          0x2e
+#define RK818_BUCK1_ON_VSEL_REG         0x2f
+#define RK818_BUCK1_SLP_VSEL_REG        0x30
+#define RK818_BUCK2_CONFIG_REG          0x32
+#define RK818_BUCK2_ON_VSEL_REG         0x33
+#define RK818_BUCK2_SLP_VSEL_REG        0x34
+#define RK818_BUCK3_CONFIG_REG          0x36
+#define RK818_BUCK4_CONFIG_REG          0x37
+#define RK818_BUCK4_ON_VSEL_REG         0x38
+#define RK818_BUCK4_SLP_VSEL_REG        0x39
+#define RK818_BOOST_CONFIG_REG          0x3a
+#define RK818_LDO1_ON_VSEL_REG          0x3b
+#define RK818_LDO1_SLP_VSEL_REG         0x3c
+#define RK818_LDO2_ON_VSEL_REG          0x3d
+#define RK818_LDO2_SLP_VSEL_REG         0x3e
+#define RK818_LDO3_ON_VSEL_REG          0x3f
+#define RK818_LDO3_SLP_VSEL_REG         0x40
+#define RK818_LDO4_ON_VSEL_REG          0x41
+#define RK818_LDO4_SLP_VSEL_REG         0x42
+#define RK818_LDO5_ON_VSEL_REG          0x43
+#define RK818_LDO5_SLP_VSEL_REG         0x44
+#define RK818_LDO6_ON_VSEL_REG          0x45
+#define RK818_LDO6_SLP_VSEL_REG         0x46
+#define RK818_LDO7_ON_VSEL_REG          0x47
+#define RK818_LDO7_SLP_VSEL_REG         0x48
+#define RK818_LDO8_ON_VSEL_REG          0x49
+#define RK818_LDO8_SLP_VSEL_REG         0x4a
+#define RK818_BOOST_LDO9_ON_VSEL_REG    0x54
+#define RK818_BOOST_LDO9_SLP_VSEL_REG   0x55
+#define RK818_DEVCTRL_REG               0x4b
+#define RK818_INT_STS_REG1              0X4c
+#define RK818_INT_STS_MSK_REG1          0x4d
+#define RK818_INT_STS_REG2              0x4e
+#define RK818_INT_STS_MSK_REG2          0x4f
+#define RK818_IO_POL_REG                0x50
+#define RK818_H5V_EN_REG                0x52
+#define RK818_SLEEP_SET_OFF_REG3        0x53
+#define RK818_BOOST_LDO9_ON_VSEL_REG    0x54
+#define RK818_BOOST_LDO9_SLP_VSEL_REG   0x55
+#define RK818_BOOST_CTRL_REG            0x56
+#define RK818_DCDC_ILMAX                0x90
+#define RK818_USB_CTRL_REG              0xa1
+
+#define RK818_H5V_EN                    BIT(0)
+#define RK818_REF_RDY_CTRL              BIT(1)
+#define RK818_USB_ILIM_SEL_MASK         0xf
+#define RK818_USB_ILMIN_2000MA          0x7
+#define RK818_USB_CHG_SD_VSEL_MASK      0x70
+
+/* RK808 IRQ Definitions */
 #define RK808_IRQ_VOUT_LO       0
 #define RK808_IRQ_VB_LO         1
 #define RK808_IRQ_PWRON         2
@@ -137,6 +228,43 @@ enum rk808_reg {
 #define RK808_IRQ_PLUG_IN_INT_MSK       BIT(0)
 #define RK808_IRQ_PLUG_OUT_INT_MSK      BIT(1)
 
+/* RK818 IRQ Definitions */
+#define RK818_IRQ_VOUT_LO       0
+#define RK818_IRQ_VB_LO         1
+#define RK818_IRQ_PWRON         2
+#define RK818_IRQ_PWRON_LP      3
+#define RK818_IRQ_HOTDIE        4
+#define RK818_IRQ_RTC_ALARM     5
+#define RK818_IRQ_RTC_PERIOD    6
+#define RK818_IRQ_USB_OV        7
+#define RK818_IRQ_PLUG_IN       8
+#define RK818_IRQ_PLUG_OUT      9
+#define RK818_IRQ_CHG_OK        10
+#define RK818_IRQ_CHG_TE        11
+#define RK818_IRQ_CHG_TS1       12
+#define RK818_IRQ_TS2           13
+#define RK818_IRQ_CHG_CVTLIM    14
+#define RK818_IRQ_DISCHG_ILIM   7
+
+#define RK818_IRQ_VOUT_LO_MSK           BIT(0)
+#define RK818_IRQ_VB_LO_MSK             BIT(1)
+#define RK818_IRQ_PWRON_MSK             BIT(2)
+#define RK818_IRQ_PWRON_LP_MSK          BIT(3)
+#define RK818_IRQ_HOTDIE_MSK            BIT(4)
+#define RK818_IRQ_RTC_ALARM_MSK         BIT(5)
+#define RK818_IRQ_RTC_PERIOD_MSK        BIT(6)
+#define RK818_IRQ_USB_OV_MSK            BIT(7)
+#define RK818_IRQ_PLUG_IN_MSK           BIT(0)
+#define RK818_IRQ_PLUG_OUT_MSK          BIT(1)
+#define RK818_IRQ_CHG_OK_MSK            BIT(2)
+#define RK818_IRQ_CHG_TE_MSK            BIT(3)
+#define RK818_IRQ_CHG_TS1_MSK           BIT(4)
+#define RK818_IRQ_TS2_MSK               BIT(5)
+#define RK818_IRQ_CHG_CVTLIM_MSK        BIT(6)
+#define RK818_IRQ_DISCHG_ILIM_MSK       BIT(7)
+
+#define RK818_NUM_IRQ           16
+
 #define RK808_VBAT_LOW_2V8      0x00
 #define RK808_VBAT_LOW_2V9      0x01
 #define RK808_VBAT_LOW_3V0      0x02
@@ -191,9 +319,17 @@ enum {
         BOOST_ILMIN_250MA,
 };
 
+enum {
+        RK808_ID = 0x0000,
+        RK818_ID = 0x8181,
+};
+
 struct rk808 {
-        struct i2c_client *i2c;
-        struct regmap_irq_chip_data *irq_data;
-        struct regmap *regmap;
+        struct i2c_client               *i2c;
+        struct regmap_irq_chip_data     *irq_data;
+        struct regmap                   *regmap;
+        long                            variant;
+        const struct regmap_config      *regmap_cfg;
+        const struct regmap_irq_chip    *regmap_irq_chip;
 };
-#endif /* __LINUX_REGULATOR_rk808_H */
+#endif /* __LINUX_REGULATOR_RK808_H */