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3f9be35bd9
I got below build warning while compiling this driver. It's obviously RC5T583_MAX_INTERRUPT_MASK_REGS is 9 but irq_en_add array only has 8 elements. CC drivers/mfd/rc5t583-irq.o drivers/mfd/rc5t583-irq.c: In function 'rc5t583_irq_sync_unlock': drivers/mfd/rc5t583-irq.c:227: warning: array subscript is above array bounds drivers/mfd/rc5t583-irq.c: In function 'rc5t583_irq_init': drivers/mfd/rc5t583-irq.c:349: warning: array subscript is above array bounds Since the number of interrupt enable registers is 8, this patch adds define for RC5T583_MAX_INTERRUPT_EN_REGS to fix this bug. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
381 lines
9.8 KiB
C
381 lines
9.8 KiB
C
/*
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* Core driver interface to access RICOH_RC5T583 power management chip.
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*
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* Copyright (c) 2011-2012, NVIDIA CORPORATION. All rights reserved.
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* Author: Laxman dewangan <ldewangan@nvidia.com>
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*
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* Based on code
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* Copyright (C) 2011 RICOH COMPANY,LTD
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef __LINUX_MFD_RC5T583_H
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#define __LINUX_MFD_RC5T583_H
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#include <linux/mutex.h>
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#include <linux/types.h>
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#include <linux/regmap.h>
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#define RC5T583_MAX_REGS 0xF8
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/* Maximum number of main interrupts */
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#define MAX_MAIN_INTERRUPT 5
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#define RC5T583_MAX_GPEDGE_REG 2
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#define RC5T583_MAX_INTERRUPT_EN_REGS 8
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#define RC5T583_MAX_INTERRUPT_MASK_REGS 9
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/* Interrupt enable register */
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#define RC5T583_INT_EN_SYS1 0x19
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#define RC5T583_INT_EN_SYS2 0x1D
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#define RC5T583_INT_EN_DCDC 0x41
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#define RC5T583_INT_EN_RTC 0xED
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#define RC5T583_INT_EN_ADC1 0x90
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#define RC5T583_INT_EN_ADC2 0x91
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#define RC5T583_INT_EN_ADC3 0x92
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/* Interrupt status registers (monitor regs in Ricoh)*/
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#define RC5T583_INTC_INTPOL 0xAD
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#define RC5T583_INTC_INTEN 0xAE
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#define RC5T583_INTC_INTMON 0xAF
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#define RC5T583_INT_MON_GRP 0xAF
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#define RC5T583_INT_MON_SYS1 0x1B
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#define RC5T583_INT_MON_SYS2 0x1F
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#define RC5T583_INT_MON_DCDC 0x43
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#define RC5T583_INT_MON_RTC 0xEE
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/* Interrupt clearing registers */
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#define RC5T583_INT_IR_SYS1 0x1A
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#define RC5T583_INT_IR_SYS2 0x1E
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#define RC5T583_INT_IR_DCDC 0x42
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#define RC5T583_INT_IR_RTC 0xEE
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#define RC5T583_INT_IR_ADCL 0x94
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#define RC5T583_INT_IR_ADCH 0x95
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#define RC5T583_INT_IR_ADCEND 0x96
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#define RC5T583_INT_IR_GPIOR 0xA9
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#define RC5T583_INT_IR_GPIOF 0xAA
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/* Sleep sequence registers */
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#define RC5T583_SLPSEQ1 0x21
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#define RC5T583_SLPSEQ2 0x22
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#define RC5T583_SLPSEQ3 0x23
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#define RC5T583_SLPSEQ4 0x24
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#define RC5T583_SLPSEQ5 0x25
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#define RC5T583_SLPSEQ6 0x26
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#define RC5T583_SLPSEQ7 0x27
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#define RC5T583_SLPSEQ8 0x28
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#define RC5T583_SLPSEQ9 0x29
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#define RC5T583_SLPSEQ10 0x2A
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#define RC5T583_SLPSEQ11 0x2B
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/* Regulator registers */
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#define RC5T583_REG_DC0CTL 0x30
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#define RC5T583_REG_DC0DAC 0x31
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#define RC5T583_REG_DC0LATCTL 0x32
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#define RC5T583_REG_SR0CTL 0x33
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#define RC5T583_REG_DC1CTL 0x34
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#define RC5T583_REG_DC1DAC 0x35
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#define RC5T583_REG_DC1LATCTL 0x36
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#define RC5T583_REG_SR1CTL 0x37
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#define RC5T583_REG_DC2CTL 0x38
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#define RC5T583_REG_DC2DAC 0x39
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#define RC5T583_REG_DC2LATCTL 0x3A
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#define RC5T583_REG_SR2CTL 0x3B
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#define RC5T583_REG_DC3CTL 0x3C
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#define RC5T583_REG_DC3DAC 0x3D
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#define RC5T583_REG_DC3LATCTL 0x3E
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#define RC5T583_REG_SR3CTL 0x3F
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#define RC5T583_REG_LDOEN1 0x50
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#define RC5T583_REG_LDOEN2 0x51
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#define RC5T583_REG_LDODIS1 0x52
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#define RC5T583_REG_LDODIS2 0x53
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#define RC5T583_REG_LDO0DAC 0x54
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#define RC5T583_REG_LDO1DAC 0x55
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#define RC5T583_REG_LDO2DAC 0x56
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#define RC5T583_REG_LDO3DAC 0x57
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#define RC5T583_REG_LDO4DAC 0x58
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#define RC5T583_REG_LDO5DAC 0x59
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#define RC5T583_REG_LDO6DAC 0x5A
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#define RC5T583_REG_LDO7DAC 0x5B
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#define RC5T583_REG_LDO8DAC 0x5C
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#define RC5T583_REG_LDO9DAC 0x5D
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#define RC5T583_REG_DC0DAC_DS 0x60
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#define RC5T583_REG_DC1DAC_DS 0x61
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#define RC5T583_REG_DC2DAC_DS 0x62
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#define RC5T583_REG_DC3DAC_DS 0x63
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#define RC5T583_REG_LDO0DAC_DS 0x64
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#define RC5T583_REG_LDO1DAC_DS 0x65
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#define RC5T583_REG_LDO2DAC_DS 0x66
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#define RC5T583_REG_LDO3DAC_DS 0x67
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#define RC5T583_REG_LDO4DAC_DS 0x68
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#define RC5T583_REG_LDO5DAC_DS 0x69
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#define RC5T583_REG_LDO6DAC_DS 0x6A
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#define RC5T583_REG_LDO7DAC_DS 0x6B
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#define RC5T583_REG_LDO8DAC_DS 0x6C
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#define RC5T583_REG_LDO9DAC_DS 0x6D
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/* GPIO register base address */
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#define RC5T583_GPIO_IOSEL 0xA0
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#define RC5T583_GPIO_PDEN 0xA1
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#define RC5T583_GPIO_IOOUT 0xA2
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#define RC5T583_GPIO_PGSEL 0xA3
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#define RC5T583_GPIO_GPINV 0xA4
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#define RC5T583_GPIO_GPDEB 0xA5
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#define RC5T583_GPIO_GPEDGE1 0xA6
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#define RC5T583_GPIO_GPEDGE2 0xA7
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#define RC5T583_GPIO_EN_INT 0xA8
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#define RC5T583_GPIO_MON_IOIN 0xAB
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#define RC5T583_GPIO_GPOFUNC 0xAC
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/* RTC registers */
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#define RC5T583_RTC_SEC 0xE0
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#define RC5T583_RTC_MIN 0xE1
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#define RC5T583_RTC_HOUR 0xE2
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#define RC5T583_RTC_WDAY 0xE3
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#define RC5T583_RTC_DAY 0xE4
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#define RC5T583_RTC_MONTH 0xE5
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#define RC5T583_RTC_YEAR 0xE6
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#define RC5T583_RTC_ADJ 0xE7
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#define RC5T583_RTC_AW_MIN 0xE8
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#define RC5T583_RTC_AW_HOUR 0xE9
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#define RC5T583_RTC_AW_WEEK 0xEA
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#define RC5T583_RTC_AD_MIN 0xEB
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#define RC5T583_RTC_AD_HOUR 0xEC
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#define RC5T583_RTC_CTL1 0xED
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#define RC5T583_RTC_CTL2 0xEE
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#define RC5T583_RTC_AY_MIN 0xF0
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#define RC5T583_RTC_AY_HOUR 0xF1
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#define RC5T583_RTC_AY_DAY 0xF2
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#define RC5T583_RTC_AY_MONTH 0xF3
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#define RC5T583_RTC_AY_YEAR 0xF4
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/* RICOH_RC5T583 IRQ definitions */
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enum {
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RC5T583_IRQ_ONKEY,
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RC5T583_IRQ_ACOK,
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RC5T583_IRQ_LIDOPEN,
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RC5T583_IRQ_PREOT,
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RC5T583_IRQ_CLKSTP,
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RC5T583_IRQ_ONKEY_OFF,
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RC5T583_IRQ_WD,
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RC5T583_IRQ_EN_PWRREQ1,
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RC5T583_IRQ_EN_PWRREQ2,
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RC5T583_IRQ_PRE_VINDET,
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RC5T583_IRQ_DC0LIM,
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RC5T583_IRQ_DC1LIM,
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RC5T583_IRQ_DC2LIM,
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RC5T583_IRQ_DC3LIM,
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RC5T583_IRQ_CTC,
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RC5T583_IRQ_YALE,
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RC5T583_IRQ_DALE,
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RC5T583_IRQ_WALE,
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RC5T583_IRQ_AIN1L,
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RC5T583_IRQ_AIN2L,
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RC5T583_IRQ_AIN3L,
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RC5T583_IRQ_VBATL,
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RC5T583_IRQ_VIN3L,
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RC5T583_IRQ_VIN8L,
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RC5T583_IRQ_AIN1H,
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RC5T583_IRQ_AIN2H,
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RC5T583_IRQ_AIN3H,
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RC5T583_IRQ_VBATH,
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RC5T583_IRQ_VIN3H,
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RC5T583_IRQ_VIN8H,
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RC5T583_IRQ_ADCEND,
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RC5T583_IRQ_GPIO0,
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RC5T583_IRQ_GPIO1,
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RC5T583_IRQ_GPIO2,
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RC5T583_IRQ_GPIO3,
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RC5T583_IRQ_GPIO4,
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RC5T583_IRQ_GPIO5,
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RC5T583_IRQ_GPIO6,
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RC5T583_IRQ_GPIO7,
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/* Should be last entry */
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RC5T583_MAX_IRQS,
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};
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/* Ricoh583 gpio definitions */
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enum {
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RC5T583_GPIO0,
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RC5T583_GPIO1,
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RC5T583_GPIO2,
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RC5T583_GPIO3,
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RC5T583_GPIO4,
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RC5T583_GPIO5,
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RC5T583_GPIO6,
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RC5T583_GPIO7,
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/* Should be last entry */
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RC5T583_MAX_GPIO,
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};
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enum {
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RC5T583_DS_NONE,
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RC5T583_DS_DC0,
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RC5T583_DS_DC1,
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RC5T583_DS_DC2,
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RC5T583_DS_DC3,
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RC5T583_DS_LDO0,
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RC5T583_DS_LDO1,
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RC5T583_DS_LDO2,
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RC5T583_DS_LDO3,
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RC5T583_DS_LDO4,
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RC5T583_DS_LDO5,
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RC5T583_DS_LDO6,
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RC5T583_DS_LDO7,
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RC5T583_DS_LDO8,
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RC5T583_DS_LDO9,
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RC5T583_DS_PSO0,
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RC5T583_DS_PSO1,
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RC5T583_DS_PSO2,
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RC5T583_DS_PSO3,
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RC5T583_DS_PSO4,
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RC5T583_DS_PSO5,
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RC5T583_DS_PSO6,
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RC5T583_DS_PSO7,
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/* Should be last entry */
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RC5T583_DS_MAX,
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};
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/*
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* Ricoh pmic RC5T583 supports sleep through two external controls.
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* The output of gpios and regulator can be enable/disable through
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* this external signals.
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*/
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enum {
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RC5T583_EXT_PWRREQ1_CONTROL = 0x1,
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RC5T583_EXT_PWRREQ2_CONTROL = 0x2,
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};
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enum {
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RC5T583_REGULATOR_DC0,
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RC5T583_REGULATOR_DC1,
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RC5T583_REGULATOR_DC2,
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RC5T583_REGULATOR_DC3,
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RC5T583_REGULATOR_LDO0,
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RC5T583_REGULATOR_LDO1,
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RC5T583_REGULATOR_LDO2,
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RC5T583_REGULATOR_LDO3,
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RC5T583_REGULATOR_LDO4,
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RC5T583_REGULATOR_LDO5,
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RC5T583_REGULATOR_LDO6,
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RC5T583_REGULATOR_LDO7,
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RC5T583_REGULATOR_LDO8,
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RC5T583_REGULATOR_LDO9,
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/* Should be last entry */
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RC5T583_REGULATOR_MAX,
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};
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struct rc5t583 {
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struct device *dev;
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struct regmap *regmap;
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int chip_irq;
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int irq_base;
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struct mutex irq_lock;
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unsigned long group_irq_en[MAX_MAIN_INTERRUPT];
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/* For main interrupt bits in INTC */
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uint8_t intc_inten_reg;
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/* For group interrupt bits and address */
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uint8_t irq_en_reg[RC5T583_MAX_INTERRUPT_EN_REGS];
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/* For gpio edge */
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uint8_t gpedge_reg[RC5T583_MAX_GPEDGE_REG];
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};
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/*
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* rc5t583_platform_data: Platform data for ricoh rc5t583 pmu.
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* The board specific data is provided through this structure.
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* @irq_base: Irq base number on which this device registers their interrupts.
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* @gpio_base: GPIO base from which gpio of this device will start.
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* @enable_shutdown: Enable shutdown through the input pin "shutdown".
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* @regulator_deepsleep_slot: The slot number on which device goes to sleep
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* in device sleep mode.
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* @regulator_ext_pwr_control: External power request regulator control. The
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* regulator output enable/disable is controlled by the external
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* power request input state.
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* @reg_init_data: Regulator init data.
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*/
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struct rc5t583_platform_data {
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int irq_base;
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int gpio_base;
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bool enable_shutdown;
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int regulator_deepsleep_slot[RC5T583_REGULATOR_MAX];
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unsigned long regulator_ext_pwr_control[RC5T583_REGULATOR_MAX];
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struct regulator_init_data *reg_init_data[RC5T583_REGULATOR_MAX];
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};
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static inline int rc5t583_write(struct device *dev, uint8_t reg, uint8_t val)
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{
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struct rc5t583 *rc5t583 = dev_get_drvdata(dev);
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return regmap_write(rc5t583->regmap, reg, val);
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}
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static inline int rc5t583_read(struct device *dev, uint8_t reg, uint8_t *val)
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{
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struct rc5t583 *rc5t583 = dev_get_drvdata(dev);
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unsigned int ival;
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int ret;
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ret = regmap_read(rc5t583->regmap, reg, &ival);
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if (!ret)
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*val = (uint8_t)ival;
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return ret;
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}
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static inline int rc5t583_set_bits(struct device *dev, unsigned int reg,
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unsigned int bit_mask)
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{
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struct rc5t583 *rc5t583 = dev_get_drvdata(dev);
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return regmap_update_bits(rc5t583->regmap, reg, bit_mask, bit_mask);
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}
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static inline int rc5t583_clear_bits(struct device *dev, unsigned int reg,
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unsigned int bit_mask)
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{
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struct rc5t583 *rc5t583 = dev_get_drvdata(dev);
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return regmap_update_bits(rc5t583->regmap, reg, bit_mask, 0);
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}
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static inline int rc5t583_update(struct device *dev, unsigned int reg,
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unsigned int val, unsigned int mask)
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{
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struct rc5t583 *rc5t583 = dev_get_drvdata(dev);
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return regmap_update_bits(rc5t583->regmap, reg, mask, val);
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}
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int rc5t583_ext_power_req_config(struct device *dev, int deepsleep_id,
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int ext_pwr_req, int deepsleep_slot_nr);
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int rc5t583_irq_init(struct rc5t583 *rc5t583, int irq, int irq_base);
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int rc5t583_irq_exit(struct rc5t583 *rc5t583);
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#endif
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