254 lines
6.3 KiB
C
254 lines
6.3 KiB
C
/*
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* Maxim8925 Interface
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*
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* Copyright (C) 2009 Marvell International Ltd.
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* Haojian Zhuang <haojian.zhuang@marvell.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __LINUX_MFD_MAX8925_H
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#define __LINUX_MFD_MAX8925_H
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#include <linux/mutex.h>
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#include <linux/interrupt.h>
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/* Unified sub device IDs for MAX8925 */
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enum {
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MAX8925_ID_SD1,
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MAX8925_ID_SD2,
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MAX8925_ID_SD3,
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MAX8925_ID_LDO1,
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MAX8925_ID_LDO2,
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MAX8925_ID_LDO3,
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MAX8925_ID_LDO4,
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MAX8925_ID_LDO5,
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MAX8925_ID_LDO6,
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MAX8925_ID_LDO7,
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MAX8925_ID_LDO8,
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MAX8925_ID_LDO9,
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MAX8925_ID_LDO10,
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MAX8925_ID_LDO11,
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MAX8925_ID_LDO12,
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MAX8925_ID_LDO13,
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MAX8925_ID_LDO14,
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MAX8925_ID_LDO15,
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MAX8925_ID_LDO16,
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MAX8925_ID_LDO17,
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MAX8925_ID_LDO18,
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MAX8925_ID_LDO19,
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MAX8925_ID_LDO20,
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MAX8925_ID_MAX,
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};
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enum {
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/*
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* Charging current threshold trigger going from fast charge
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* to TOPOFF charge. From 5% to 20% of fasting charging current.
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*/
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MAX8925_TOPOFF_THR_5PER,
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MAX8925_TOPOFF_THR_10PER,
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MAX8925_TOPOFF_THR_15PER,
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MAX8925_TOPOFF_THR_20PER,
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};
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enum {
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/* Fast charging current */
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MAX8925_FCHG_85MA,
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MAX8925_FCHG_300MA,
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MAX8925_FCHG_460MA,
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MAX8925_FCHG_600MA,
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MAX8925_FCHG_700MA,
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MAX8925_FCHG_800MA,
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MAX8925_FCHG_900MA,
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MAX8925_FCHG_1000MA,
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};
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/* Charger registers */
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#define MAX8925_CHG_IRQ1 (0x7e)
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#define MAX8925_CHG_IRQ2 (0x7f)
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#define MAX8925_CHG_IRQ1_MASK (0x80)
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#define MAX8925_CHG_IRQ2_MASK (0x81)
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#define MAX8925_CHG_STATUS (0x82)
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/* GPM registers */
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#define MAX8925_SYSENSEL (0x00)
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#define MAX8925_ON_OFF_IRQ1 (0x01)
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#define MAX8925_ON_OFF_IRQ1_MASK (0x02)
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#define MAX8925_ON_OFF_STATUS (0x03)
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#define MAX8925_ON_OFF_IRQ2 (0x0d)
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#define MAX8925_ON_OFF_IRQ2_MASK (0x0e)
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#define MAX8925_RESET_CNFG (0x0f)
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/* Touch registers */
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#define MAX8925_TSC_IRQ (0x00)
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#define MAX8925_TSC_IRQ_MASK (0x01)
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#define MAX8925_TSC_CNFG1 (0x02)
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#define MAX8925_ADC_SCHED (0x10)
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#define MAX8925_ADC_RES_END (0x6f)
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#define MAX8925_NREF_OK (1 << 4)
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/* RTC registers */
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#define MAX8925_ALARM0_CNTL (0x18)
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#define MAX8925_ALARM1_CNTL (0x19)
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#define MAX8925_RTC_IRQ (0x1c)
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#define MAX8925_RTC_IRQ_MASK (0x1d)
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#define MAX8925_MPL_CNTL (0x1e)
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/* WLED registers */
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#define MAX8925_WLED_MODE_CNTL (0x84)
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#define MAX8925_WLED_CNTL (0x85)
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/* MAX8925 Registers */
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#define MAX8925_SDCTL1 (0x04)
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#define MAX8925_SDCTL2 (0x07)
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#define MAX8925_SDCTL3 (0x0A)
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#define MAX8925_SDV1 (0x06)
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#define MAX8925_SDV2 (0x09)
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#define MAX8925_SDV3 (0x0C)
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#define MAX8925_LDOCTL1 (0x18)
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#define MAX8925_LDOCTL2 (0x1C)
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#define MAX8925_LDOCTL3 (0x20)
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#define MAX8925_LDOCTL4 (0x24)
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#define MAX8925_LDOCTL5 (0x28)
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#define MAX8925_LDOCTL6 (0x2C)
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#define MAX8925_LDOCTL7 (0x30)
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#define MAX8925_LDOCTL8 (0x34)
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#define MAX8925_LDOCTL9 (0x38)
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#define MAX8925_LDOCTL10 (0x3C)
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#define MAX8925_LDOCTL11 (0x40)
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#define MAX8925_LDOCTL12 (0x44)
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#define MAX8925_LDOCTL13 (0x48)
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#define MAX8925_LDOCTL14 (0x4C)
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#define MAX8925_LDOCTL15 (0x50)
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#define MAX8925_LDOCTL16 (0x10)
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#define MAX8925_LDOCTL17 (0x14)
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#define MAX8925_LDOCTL18 (0x72)
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#define MAX8925_LDOCTL19 (0x5C)
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#define MAX8925_LDOCTL20 (0x9C)
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#define MAX8925_LDOVOUT1 (0x1A)
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#define MAX8925_LDOVOUT2 (0x1E)
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#define MAX8925_LDOVOUT3 (0x22)
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#define MAX8925_LDOVOUT4 (0x26)
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#define MAX8925_LDOVOUT5 (0x2A)
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#define MAX8925_LDOVOUT6 (0x2E)
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#define MAX8925_LDOVOUT7 (0x32)
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#define MAX8925_LDOVOUT8 (0x36)
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#define MAX8925_LDOVOUT9 (0x3A)
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#define MAX8925_LDOVOUT10 (0x3E)
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#define MAX8925_LDOVOUT11 (0x42)
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#define MAX8925_LDOVOUT12 (0x46)
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#define MAX8925_LDOVOUT13 (0x4A)
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#define MAX8925_LDOVOUT14 (0x4E)
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#define MAX8925_LDOVOUT15 (0x52)
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#define MAX8925_LDOVOUT16 (0x12)
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#define MAX8925_LDOVOUT17 (0x16)
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#define MAX8925_LDOVOUT18 (0x74)
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#define MAX8925_LDOVOUT19 (0x5E)
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#define MAX8925_LDOVOUT20 (0x9E)
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/* bit definitions */
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#define CHG_IRQ1_MASK (0x07)
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#define CHG_IRQ2_MASK (0xff)
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#define ON_OFF_IRQ1_MASK (0xff)
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#define ON_OFF_IRQ2_MASK (0x03)
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#define TSC_IRQ_MASK (0x03)
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#define RTC_IRQ_MASK (0x0c)
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#define MAX8925_MAX_REGULATOR (23)
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#define MAX8925_NAME_SIZE (32)
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/* IRQ definitions */
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enum {
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MAX8925_IRQ_VCHG_DC_OVP,
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MAX8925_IRQ_VCHG_DC_F,
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MAX8925_IRQ_VCHG_DC_R,
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MAX8925_IRQ_VCHG_USB_OVP,
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MAX8925_IRQ_VCHG_USB_F,
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MAX8925_IRQ_VCHG_USB_R,
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MAX8925_IRQ_VCHG_THM_OK_R,
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MAX8925_IRQ_VCHG_THM_OK_F,
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MAX8925_IRQ_VCHG_SYSLOW_F,
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MAX8925_IRQ_VCHG_SYSLOW_R,
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MAX8925_IRQ_VCHG_RST,
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MAX8925_IRQ_VCHG_DONE,
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MAX8925_IRQ_VCHG_TOPOFF,
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MAX8925_IRQ_VCHG_TMR_FAULT,
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MAX8925_IRQ_GPM_RSTIN,
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MAX8925_IRQ_GPM_MPL,
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MAX8925_IRQ_GPM_SW_3SEC,
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MAX8925_IRQ_GPM_EXTON_F,
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MAX8925_IRQ_GPM_EXTON_R,
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MAX8925_IRQ_GPM_SW_1SEC,
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MAX8925_IRQ_GPM_SW_F,
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MAX8925_IRQ_GPM_SW_R,
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MAX8925_IRQ_GPM_SYSCKEN_F,
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MAX8925_IRQ_GPM_SYSCKEN_R,
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MAX8925_IRQ_RTC_ALARM1,
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MAX8925_IRQ_RTC_ALARM0,
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MAX8925_IRQ_TSC_STICK,
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MAX8925_IRQ_TSC_NSTICK,
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MAX8925_NR_IRQS,
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};
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struct max8925_chip {
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struct device *dev;
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struct i2c_client *i2c;
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struct i2c_client *adc;
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struct i2c_client *rtc;
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struct mutex io_lock;
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struct mutex irq_lock;
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int irq_base;
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int core_irq;
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int tsc_irq;
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};
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struct max8925_backlight_pdata {
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int lxw_scl; /* 0/1 -- 0.8Ohm/0.4Ohm */
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int lxw_freq; /* 700KHz ~ 1400KHz */
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int dual_string; /* 0/1 -- single/dual string */
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};
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struct max8925_touch_pdata {
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unsigned int flags;
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};
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struct max8925_power_pdata {
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int (*set_charger)(int);
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unsigned batt_detect:1;
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unsigned topoff_threshold:2;
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unsigned fast_charge:3; /* charge current */
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};
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/*
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* irq_base: stores IRQ base number of MAX8925 in platform
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* tsc_irq: stores IRQ number of MAX8925 TSC
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*/
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struct max8925_platform_data {
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struct max8925_backlight_pdata *backlight;
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struct max8925_touch_pdata *touch;
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struct max8925_power_pdata *power;
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struct regulator_init_data *regulator[MAX8925_MAX_REGULATOR];
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int irq_base;
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int tsc_irq;
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};
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extern int max8925_reg_read(struct i2c_client *, int);
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extern int max8925_reg_write(struct i2c_client *, int, unsigned char);
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extern int max8925_bulk_read(struct i2c_client *, int, int, unsigned char *);
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extern int max8925_bulk_write(struct i2c_client *, int, int, unsigned char *);
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extern int max8925_set_bits(struct i2c_client *, int, unsigned char,
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unsigned char);
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extern int max8925_device_init(struct max8925_chip *,
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struct max8925_platform_data *);
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extern void max8925_device_exit(struct max8925_chip *);
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#endif /* __LINUX_MFD_MAX8925_H */
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