mfd: Add MAX8907 core driver
The MAX8907 is an I2C-based power-management IC containing voltage
regulators, a reset controller, a real-time clock, and a touch-screen
controller.
The original driver was written by:
* Gyungoh Yoo <jack.yoo@maxim-ic.com>
Various fixes and enhancements by:
* Jin Park <jinyoungp@nvidia.com>
* Tom Cherry <tcherry@nvidia.com>
* Prashant Gaikwad <pgaikwad@nvidia.com>
* Dan Willemsen <dwillemsen@nvidia.com>
* Laxman Dewangan <ldewangan@nvidia.com>
During upstreaming, I (swarren):
* Converted to regmap.
* Converted to regmap-irq.
* Allowed probing from device tree.
* Renamed from max8907c->max8907, since the driver covers at least the
C and B revisions.
* General cleanup.
Signed-off-by: Gyungoh Yoo <jack.yoo@maxim-ic.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> #v3
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/include/linux/mfd/max8907.h b/include/linux/mfd/max8907.h
new file mode 100644
index 0000000..283531f
--- /dev/null
+++ b/include/linux/mfd/max8907.h
@@ -0,0 +1,250 @@
+/*
+ * Functions to access MAX8907 power management chip.
+ *
+ * Copyright (C) 2010 Gyungoh Yoo <jack.yoo@maxim-ic.com>
+ * Copyright (C) 2012, NVIDIA CORPORATION. All rights reserved.
+ *
+ * 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.
+ */
+
+#ifndef __LINUX_MFD_MAX8907_H
+#define __LINUX_MFD_MAX8907_H
+
+#include <linux/mutex.h>
+#include <linux/pm.h>
+
+#define MAX8907_GEN_I2C_ADDR (0x78 >> 1)
+#define MAX8907_ADC_I2C_ADDR (0x8e >> 1)
+#define MAX8907_RTC_I2C_ADDR (0xd0 >> 1)
+
+/* MAX8907 register map */
+#define MAX8907_REG_SYSENSEL 0x00
+#define MAX8907_REG_ON_OFF_IRQ1 0x01
+#define MAX8907_REG_ON_OFF_IRQ1_MASK 0x02
+#define MAX8907_REG_ON_OFF_STAT 0x03
+#define MAX8907_REG_SDCTL1 0x04
+#define MAX8907_REG_SDSEQCNT1 0x05
+#define MAX8907_REG_SDV1 0x06
+#define MAX8907_REG_SDCTL2 0x07
+#define MAX8907_REG_SDSEQCNT2 0x08
+#define MAX8907_REG_SDV2 0x09
+#define MAX8907_REG_SDCTL3 0x0A
+#define MAX8907_REG_SDSEQCNT3 0x0B
+#define MAX8907_REG_SDV3 0x0C
+#define MAX8907_REG_ON_OFF_IRQ2 0x0D
+#define MAX8907_REG_ON_OFF_IRQ2_MASK 0x0E
+#define MAX8907_REG_RESET_CNFG 0x0F
+#define MAX8907_REG_LDOCTL16 0x10
+#define MAX8907_REG_LDOSEQCNT16 0x11
+#define MAX8907_REG_LDO16VOUT 0x12
+#define MAX8907_REG_SDBYSEQCNT 0x13
+#define MAX8907_REG_LDOCTL17 0x14
+#define MAX8907_REG_LDOSEQCNT17 0x15
+#define MAX8907_REG_LDO17VOUT 0x16
+#define MAX8907_REG_LDOCTL1 0x18
+#define MAX8907_REG_LDOSEQCNT1 0x19
+#define MAX8907_REG_LDO1VOUT 0x1A
+#define MAX8907_REG_LDOCTL2 0x1C
+#define MAX8907_REG_LDOSEQCNT2 0x1D
+#define MAX8907_REG_LDO2VOUT 0x1E
+#define MAX8907_REG_LDOCTL3 0x20
+#define MAX8907_REG_LDOSEQCNT3 0x21
+#define MAX8907_REG_LDO3VOUT 0x22
+#define MAX8907_REG_LDOCTL4 0x24
+#define MAX8907_REG_LDOSEQCNT4 0x25
+#define MAX8907_REG_LDO4VOUT 0x26
+#define MAX8907_REG_LDOCTL5 0x28
+#define MAX8907_REG_LDOSEQCNT5 0x29
+#define MAX8907_REG_LDO5VOUT 0x2A
+#define MAX8907_REG_LDOCTL6 0x2C
+#define MAX8907_REG_LDOSEQCNT6 0x2D
+#define MAX8907_REG_LDO6VOUT 0x2E
+#define MAX8907_REG_LDOCTL7 0x30
+#define MAX8907_REG_LDOSEQCNT7 0x31
+#define MAX8907_REG_LDO7VOUT 0x32
+#define MAX8907_REG_LDOCTL8 0x34
+#define MAX8907_REG_LDOSEQCNT8 0x35
+#define MAX8907_REG_LDO8VOUT 0x36
+#define MAX8907_REG_LDOCTL9 0x38
+#define MAX8907_REG_LDOSEQCNT9 0x39
+#define MAX8907_REG_LDO9VOUT 0x3A
+#define MAX8907_REG_LDOCTL10 0x3C
+#define MAX8907_REG_LDOSEQCNT10 0x3D
+#define MAX8907_REG_LDO10VOUT 0x3E
+#define MAX8907_REG_LDOCTL11 0x40
+#define MAX8907_REG_LDOSEQCNT11 0x41
+#define MAX8907_REG_LDO11VOUT 0x42
+#define MAX8907_REG_LDOCTL12 0x44
+#define MAX8907_REG_LDOSEQCNT12 0x45
+#define MAX8907_REG_LDO12VOUT 0x46
+#define MAX8907_REG_LDOCTL13 0x48
+#define MAX8907_REG_LDOSEQCNT13 0x49
+#define MAX8907_REG_LDO13VOUT 0x4A
+#define MAX8907_REG_LDOCTL14 0x4C
+#define MAX8907_REG_LDOSEQCNT14 0x4D
+#define MAX8907_REG_LDO14VOUT 0x4E
+#define MAX8907_REG_LDOCTL15 0x50
+#define MAX8907_REG_LDOSEQCNT15 0x51
+#define MAX8907_REG_LDO15VOUT 0x52
+#define MAX8907_REG_OUT5VEN 0x54
+#define MAX8907_REG_OUT5VSEQ 0x55
+#define MAX8907_REG_OUT33VEN 0x58
+#define MAX8907_REG_OUT33VSEQ 0x59
+#define MAX8907_REG_LDOCTL19 0x5C
+#define MAX8907_REG_LDOSEQCNT19 0x5D
+#define MAX8907_REG_LDO19VOUT 0x5E
+#define MAX8907_REG_LBCNFG 0x60
+#define MAX8907_REG_SEQ1CNFG 0x64
+#define MAX8907_REG_SEQ2CNFG 0x65
+#define MAX8907_REG_SEQ3CNFG 0x66
+#define MAX8907_REG_SEQ4CNFG 0x67
+#define MAX8907_REG_SEQ5CNFG 0x68
+#define MAX8907_REG_SEQ6CNFG 0x69
+#define MAX8907_REG_SEQ7CNFG 0x6A
+#define MAX8907_REG_LDOCTL18 0x72
+#define MAX8907_REG_LDOSEQCNT18 0x73
+#define MAX8907_REG_LDO18VOUT 0x74
+#define MAX8907_REG_BBAT_CNFG 0x78
+#define MAX8907_REG_CHG_CNTL1 0x7C
+#define MAX8907_REG_CHG_CNTL2 0x7D
+#define MAX8907_REG_CHG_IRQ1 0x7E
+#define MAX8907_REG_CHG_IRQ2 0x7F
+#define MAX8907_REG_CHG_IRQ1_MASK 0x80
+#define MAX8907_REG_CHG_IRQ2_MASK 0x81
+#define MAX8907_REG_CHG_STAT 0x82
+#define MAX8907_REG_WLED_MODE_CNTL 0x84
+#define MAX8907_REG_ILED_CNTL 0x84
+#define MAX8907_REG_II1RR 0x8E
+#define MAX8907_REG_II2RR 0x8F
+#define MAX8907_REG_LDOCTL20 0x9C
+#define MAX8907_REG_LDOSEQCNT20 0x9D
+#define MAX8907_REG_LDO20VOUT 0x9E
+
+/* RTC register map */
+#define MAX8907_REG_RTC_SEC 0x00
+#define MAX8907_REG_RTC_MIN 0x01
+#define MAX8907_REG_RTC_HOURS 0x02
+#define MAX8907_REG_RTC_WEEKDAY 0x03
+#define MAX8907_REG_RTC_DATE 0x04
+#define MAX8907_REG_RTC_MONTH 0x05
+#define MAX8907_REG_RTC_YEAR1 0x06
+#define MAX8907_REG_RTC_YEAR2 0x07
+#define MAX8907_REG_ALARM0_SEC 0x08
+#define MAX8907_REG_ALARM0_MIN 0x09
+#define MAX8907_REG_ALARM0_HOURS 0x0A
+#define MAX8907_REG_ALARM0_WEEKDAY 0x0B
+#define MAX8907_REG_ALARM0_DATE 0x0C
+#define MAX8907_REG_ALARM0_MONTH 0x0D
+#define MAX8907_REG_ALARM0_YEAR1 0x0E
+#define MAX8907_REG_ALARM0_YEAR2 0x0F
+#define MAX8907_REG_ALARM1_SEC 0x10
+#define MAX8907_REG_ALARM1_MIN 0x11
+#define MAX8907_REG_ALARM1_HOURS 0x12
+#define MAX8907_REG_ALARM1_WEEKDAY 0x13
+#define MAX8907_REG_ALARM1_DATE 0x14
+#define MAX8907_REG_ALARM1_MONTH 0x15
+#define MAX8907_REG_ALARM1_YEAR1 0x16
+#define MAX8907_REG_ALARM1_YEAR2 0x17
+#define MAX8907_REG_ALARM0_CNTL 0x18
+#define MAX8907_REG_ALARM1_CNTL 0x19
+#define MAX8907_REG_RTC_STATUS 0x1A
+#define MAX8907_REG_RTC_CNTL 0x1B
+#define MAX8907_REG_RTC_IRQ 0x1C
+#define MAX8907_REG_RTC_IRQ_MASK 0x1D
+#define MAX8907_REG_MPL_CNTL 0x1E
+
+/* ADC and Touch Screen Controller register map */
+#define MAX8907_CTL 0
+#define MAX8907_SEQCNT 1
+#define MAX8907_VOUT 2
+
+/* mask bit fields */
+#define MAX8907_MASK_LDO_SEQ 0x1C
+#define MAX8907_MASK_LDO_EN 0x01
+#define MAX8907_MASK_VBBATTCV 0x03
+#define MAX8907_MASK_OUT5V_VINEN 0x10
+#define MAX8907_MASK_OUT5V_ENSRC 0x0E
+#define MAX8907_MASK_OUT5V_EN 0x01
+
+/* Regulator IDs */
+#define MAX8907_MBATT 0
+#define MAX8907_SD1 1
+#define MAX8907_SD2 2
+#define MAX8907_SD3 3
+#define MAX8907_LDO1 4
+#define MAX8907_LDO2 5
+#define MAX8907_LDO3 6
+#define MAX8907_LDO4 7
+#define MAX8907_LDO5 8
+#define MAX8907_LDO6 9
+#define MAX8907_LDO7 10
+#define MAX8907_LDO8 11
+#define MAX8907_LDO9 12
+#define MAX8907_LDO10 13
+#define MAX8907_LDO11 14
+#define MAX8907_LDO12 15
+#define MAX8907_LDO13 16
+#define MAX8907_LDO14 17
+#define MAX8907_LDO15 18
+#define MAX8907_LDO16 19
+#define MAX8907_LDO17 20
+#define MAX8907_LDO18 21
+#define MAX8907_LDO19 22
+#define MAX8907_LDO20 23
+#define MAX8907_OUT5V 24
+#define MAX8907_OUT33V 25
+#define MAX8907_BBAT 26
+#define MAX8907_SDBY 27
+#define MAX8907_VRTC 28
+#define MAX8907_NUM_REGULATORS (MAX8907_VRTC + 1)
+
+/* IRQ definitions */
+enum {
+ MAX8907_IRQ_VCHG_DC_OVP = 0,
+ MAX8907_IRQ_VCHG_DC_F,
+ MAX8907_IRQ_VCHG_DC_R,
+ MAX8907_IRQ_VCHG_THM_OK_R,
+ MAX8907_IRQ_VCHG_THM_OK_F,
+ MAX8907_IRQ_VCHG_MBATTLOW_F,
+ MAX8907_IRQ_VCHG_MBATTLOW_R,
+ MAX8907_IRQ_VCHG_RST,
+ MAX8907_IRQ_VCHG_DONE,
+ MAX8907_IRQ_VCHG_TOPOFF,
+ MAX8907_IRQ_VCHG_TMR_FAULT,
+
+ MAX8907_IRQ_GPM_RSTIN = 0,
+ MAX8907_IRQ_GPM_MPL,
+ MAX8907_IRQ_GPM_SW_3SEC,
+ MAX8907_IRQ_GPM_EXTON_F,
+ MAX8907_IRQ_GPM_EXTON_R,
+ MAX8907_IRQ_GPM_SW_1SEC,
+ MAX8907_IRQ_GPM_SW_F,
+ MAX8907_IRQ_GPM_SW_R,
+ MAX8907_IRQ_GPM_SYSCKEN_F,
+ MAX8907_IRQ_GPM_SYSCKEN_R,
+
+ MAX8907_IRQ_RTC_ALARM1 = 0,
+ MAX8907_IRQ_RTC_ALARM0,
+};
+
+struct max8907_platform_data {
+ struct regulator_init_data *init_data[MAX8907_NUM_REGULATORS];
+};
+
+struct regmap_irq_chips_data;
+
+struct max8907 {
+ struct device *dev;
+ struct mutex irq_lock;
+ struct i2c_client *i2c_gen;
+ struct i2c_client *i2c_rtc;
+ struct regmap *regmap_gen;
+ struct regmap *regmap_rtc;
+ struct regmap_irq_chip_data *irqc_chg;
+ struct regmap_irq_chip_data *irqc_on_off;
+ struct regmap_irq_chip_data *irqc_rtc;
+};
+
+#endif