1528 lines
36 KiB
C
1528 lines
36 KiB
C
/*
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* Copyright (C) ST-Ericsson SA 2010
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*
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* License Terms: GNU General Public License v2
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* Author: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
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* Author: Rabin Vincent <rabin.vincent@stericsson.com>
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* Author: Mattias Wallin <mattias.wallin@stericsson.com>
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/init.h>
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#include <linux/irq.h>
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#include <linux/irqdomain.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/mfd/core.h>
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#include <linux/mfd/abx500.h>
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#include <linux/mfd/abx500/ab8500.h>
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#include <linux/mfd/dbx500-prcmu.h>
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#include <linux/regulator/ab8500.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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/*
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* Interrupt register offsets
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* Bank : 0x0E
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*/
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#define AB8500_IT_SOURCE1_REG 0x00
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#define AB8500_IT_SOURCE2_REG 0x01
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#define AB8500_IT_SOURCE3_REG 0x02
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#define AB8500_IT_SOURCE4_REG 0x03
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#define AB8500_IT_SOURCE5_REG 0x04
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#define AB8500_IT_SOURCE6_REG 0x05
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#define AB8500_IT_SOURCE7_REG 0x06
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#define AB8500_IT_SOURCE8_REG 0x07
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#define AB9540_IT_SOURCE13_REG 0x0C
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#define AB8500_IT_SOURCE19_REG 0x12
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#define AB8500_IT_SOURCE20_REG 0x13
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#define AB8500_IT_SOURCE21_REG 0x14
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#define AB8500_IT_SOURCE22_REG 0x15
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#define AB8500_IT_SOURCE23_REG 0x16
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#define AB8500_IT_SOURCE24_REG 0x17
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/*
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* latch registers
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*/
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#define AB8500_IT_LATCH1_REG 0x20
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#define AB8500_IT_LATCH2_REG 0x21
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#define AB8500_IT_LATCH3_REG 0x22
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#define AB8500_IT_LATCH4_REG 0x23
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#define AB8500_IT_LATCH5_REG 0x24
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#define AB8500_IT_LATCH6_REG 0x25
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#define AB8500_IT_LATCH7_REG 0x26
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#define AB8500_IT_LATCH8_REG 0x27
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#define AB8500_IT_LATCH9_REG 0x28
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#define AB8500_IT_LATCH10_REG 0x29
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#define AB8500_IT_LATCH12_REG 0x2B
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#define AB9540_IT_LATCH13_REG 0x2C
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#define AB8500_IT_LATCH19_REG 0x32
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#define AB8500_IT_LATCH20_REG 0x33
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#define AB8500_IT_LATCH21_REG 0x34
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#define AB8500_IT_LATCH22_REG 0x35
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#define AB8500_IT_LATCH23_REG 0x36
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#define AB8500_IT_LATCH24_REG 0x37
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/*
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* mask registers
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*/
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#define AB8500_IT_MASK1_REG 0x40
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#define AB8500_IT_MASK2_REG 0x41
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#define AB8500_IT_MASK3_REG 0x42
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#define AB8500_IT_MASK4_REG 0x43
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#define AB8500_IT_MASK5_REG 0x44
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#define AB8500_IT_MASK6_REG 0x45
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#define AB8500_IT_MASK7_REG 0x46
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#define AB8500_IT_MASK8_REG 0x47
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#define AB8500_IT_MASK9_REG 0x48
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#define AB8500_IT_MASK10_REG 0x49
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#define AB8500_IT_MASK11_REG 0x4A
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#define AB8500_IT_MASK12_REG 0x4B
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#define AB8500_IT_MASK13_REG 0x4C
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#define AB8500_IT_MASK14_REG 0x4D
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#define AB8500_IT_MASK15_REG 0x4E
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#define AB8500_IT_MASK16_REG 0x4F
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#define AB8500_IT_MASK17_REG 0x50
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#define AB8500_IT_MASK18_REG 0x51
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#define AB8500_IT_MASK19_REG 0x52
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#define AB8500_IT_MASK20_REG 0x53
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#define AB8500_IT_MASK21_REG 0x54
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#define AB8500_IT_MASK22_REG 0x55
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#define AB8500_IT_MASK23_REG 0x56
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#define AB8500_IT_MASK24_REG 0x57
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/*
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* latch hierarchy registers
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*/
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#define AB8500_IT_LATCHHIER1_REG 0x60
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#define AB8500_IT_LATCHHIER2_REG 0x61
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#define AB8500_IT_LATCHHIER3_REG 0x62
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#define AB8500_IT_LATCHHIER_NUM 3
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#define AB8500_REV_REG 0x80
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#define AB8500_IC_NAME_REG 0x82
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#define AB8500_SWITCH_OFF_STATUS 0x00
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#define AB8500_TURN_ON_STATUS 0x00
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static bool no_bm; /* No battery management */
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module_param(no_bm, bool, S_IRUGO);
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#define AB9540_MODEM_CTRL2_REG 0x23
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#define AB9540_MODEM_CTRL2_SWDBBRSTN_BIT BIT(2)
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/*
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* Map interrupt numbers to the LATCH and MASK register offsets, Interrupt
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* numbers are indexed into this array with (num / 8). The interupts are
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* defined in linux/mfd/ab8500.h
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*
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* This is one off from the register names, i.e. AB8500_IT_MASK1_REG is at
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* offset 0.
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*/
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/* AB8500 support */
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static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = {
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0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21,
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};
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/* AB9540 support */
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static const int ab9540_irq_regoffset[AB9540_NUM_IRQ_REGS] = {
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0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24,
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};
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static const char ab8500_version_str[][7] = {
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[AB8500_VERSION_AB8500] = "AB8500",
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[AB8500_VERSION_AB8505] = "AB8505",
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[AB8500_VERSION_AB9540] = "AB9540",
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[AB8500_VERSION_AB8540] = "AB8540",
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};
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static int ab8500_prcmu_write(struct ab8500 *ab8500, u16 addr, u8 data)
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{
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int ret;
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ret = prcmu_abb_write((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
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if (ret < 0)
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dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
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return ret;
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}
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static int ab8500_prcmu_write_masked(struct ab8500 *ab8500, u16 addr, u8 mask,
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u8 data)
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{
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int ret;
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ret = prcmu_abb_write_masked((u8)(addr >> 8), (u8)(addr & 0xFF), &data,
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&mask, 1);
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if (ret < 0)
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dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
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return ret;
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}
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static int ab8500_prcmu_read(struct ab8500 *ab8500, u16 addr)
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{
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int ret;
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u8 data;
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ret = prcmu_abb_read((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
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if (ret < 0) {
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dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
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return ret;
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}
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return (int)data;
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}
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static int ab8500_get_chip_id(struct device *dev)
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{
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struct ab8500 *ab8500;
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if (!dev)
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return -EINVAL;
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ab8500 = dev_get_drvdata(dev->parent);
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return ab8500 ? (int)ab8500->chip_id : -EINVAL;
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}
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static int set_register_interruptible(struct ab8500 *ab8500, u8 bank,
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u8 reg, u8 data)
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{
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int ret;
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/*
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* Put the u8 bank and u8 register together into a an u16.
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* The bank on higher 8 bits and register in lower 8 bits.
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* */
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u16 addr = ((u16)bank) << 8 | reg;
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dev_vdbg(ab8500->dev, "wr: addr %#x <= %#x\n", addr, data);
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mutex_lock(&ab8500->lock);
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ret = ab8500->write(ab8500, addr, data);
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if (ret < 0)
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dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
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addr, ret);
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mutex_unlock(&ab8500->lock);
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return ret;
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}
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static int ab8500_set_register(struct device *dev, u8 bank,
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u8 reg, u8 value)
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{
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int ret;
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struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
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atomic_inc(&ab8500->transfer_ongoing);
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ret = set_register_interruptible(ab8500, bank, reg, value);
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atomic_dec(&ab8500->transfer_ongoing);
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return ret;
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}
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static int get_register_interruptible(struct ab8500 *ab8500, u8 bank,
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u8 reg, u8 *value)
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{
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int ret;
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/* put the u8 bank and u8 reg together into a an u16.
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* bank on higher 8 bits and reg in lower */
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u16 addr = ((u16)bank) << 8 | reg;
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mutex_lock(&ab8500->lock);
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ret = ab8500->read(ab8500, addr);
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if (ret < 0)
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dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
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addr, ret);
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else
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*value = ret;
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mutex_unlock(&ab8500->lock);
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dev_vdbg(ab8500->dev, "rd: addr %#x => data %#x\n", addr, ret);
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return ret;
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}
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static int ab8500_get_register(struct device *dev, u8 bank,
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u8 reg, u8 *value)
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{
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int ret;
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struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
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atomic_inc(&ab8500->transfer_ongoing);
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ret = get_register_interruptible(ab8500, bank, reg, value);
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atomic_dec(&ab8500->transfer_ongoing);
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return ret;
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}
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static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank,
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u8 reg, u8 bitmask, u8 bitvalues)
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{
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int ret;
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/* put the u8 bank and u8 reg together into a an u16.
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* bank on higher 8 bits and reg in lower */
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u16 addr = ((u16)bank) << 8 | reg;
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mutex_lock(&ab8500->lock);
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if (ab8500->write_masked == NULL) {
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u8 data;
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ret = ab8500->read(ab8500, addr);
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if (ret < 0) {
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dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
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addr, ret);
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goto out;
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}
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data = (u8)ret;
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data = (~bitmask & data) | (bitmask & bitvalues);
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ret = ab8500->write(ab8500, addr, data);
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if (ret < 0)
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dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
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addr, ret);
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dev_vdbg(ab8500->dev, "mask: addr %#x => data %#x\n", addr,
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data);
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goto out;
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}
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ret = ab8500->write_masked(ab8500, addr, bitmask, bitvalues);
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if (ret < 0)
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dev_err(ab8500->dev, "failed to modify reg %#x: %d\n", addr,
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ret);
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out:
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mutex_unlock(&ab8500->lock);
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return ret;
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}
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static int ab8500_mask_and_set_register(struct device *dev,
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u8 bank, u8 reg, u8 bitmask, u8 bitvalues)
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{
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int ret;
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struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
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atomic_inc(&ab8500->transfer_ongoing);
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ret= mask_and_set_register_interruptible(ab8500, bank, reg,
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bitmask, bitvalues);
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atomic_dec(&ab8500->transfer_ongoing);
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return ret;
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}
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static struct abx500_ops ab8500_ops = {
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.get_chip_id = ab8500_get_chip_id,
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.get_register = ab8500_get_register,
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.set_register = ab8500_set_register,
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.get_register_page = NULL,
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.set_register_page = NULL,
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.mask_and_set_register = ab8500_mask_and_set_register,
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.event_registers_startup_state_get = NULL,
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.startup_irq_enabled = NULL,
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};
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static void ab8500_irq_lock(struct irq_data *data)
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{
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struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
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mutex_lock(&ab8500->irq_lock);
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atomic_inc(&ab8500->transfer_ongoing);
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}
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static void ab8500_irq_sync_unlock(struct irq_data *data)
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{
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struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
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int i;
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for (i = 0; i < ab8500->mask_size; i++) {
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u8 old = ab8500->oldmask[i];
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u8 new = ab8500->mask[i];
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int reg;
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if (new == old)
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continue;
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/*
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* Interrupt register 12 doesn't exist prior to AB8500 version
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* 2.0
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*/
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if (ab8500->irq_reg_offset[i] == 11 &&
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is_ab8500_1p1_or_earlier(ab8500))
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continue;
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ab8500->oldmask[i] = new;
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reg = AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i];
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set_register_interruptible(ab8500, AB8500_INTERRUPT, reg, new);
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}
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atomic_dec(&ab8500->transfer_ongoing);
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mutex_unlock(&ab8500->irq_lock);
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}
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static void ab8500_irq_mask(struct irq_data *data)
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{
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struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
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int offset = data->hwirq;
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int index = offset / 8;
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int mask = 1 << (offset % 8);
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ab8500->mask[index] |= mask;
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}
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static void ab8500_irq_unmask(struct irq_data *data)
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{
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struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
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int offset = data->hwirq;
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int index = offset / 8;
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int mask = 1 << (offset % 8);
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ab8500->mask[index] &= ~mask;
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}
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static struct irq_chip ab8500_irq_chip = {
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.name = "ab8500",
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.irq_bus_lock = ab8500_irq_lock,
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.irq_bus_sync_unlock = ab8500_irq_sync_unlock,
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.irq_mask = ab8500_irq_mask,
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.irq_disable = ab8500_irq_mask,
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.irq_unmask = ab8500_irq_unmask,
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};
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static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
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int latch_offset, u8 latch_val)
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{
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int int_bit = __ffs(latch_val);
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int line, i;
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do {
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int_bit = __ffs(latch_val);
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for (i = 0; i < ab8500->mask_size; i++)
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if (ab8500->irq_reg_offset[i] == latch_offset)
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break;
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if (i >= ab8500->mask_size) {
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dev_err(ab8500->dev, "Register offset 0x%2x not declared\n",
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latch_offset);
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return -ENXIO;
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}
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line = (i << 3) + int_bit;
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latch_val &= ~(1 << int_bit);
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handle_nested_irq(ab8500->irq_base + line);
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} while (latch_val);
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return 0;
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}
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static int ab8500_handle_hierarchical_latch(struct ab8500 *ab8500,
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int hier_offset, u8 hier_val)
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{
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int latch_bit, status;
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u8 latch_offset, latch_val;
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do {
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latch_bit = __ffs(hier_val);
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latch_offset = (hier_offset << 3) + latch_bit;
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/* Fix inconsistent ITFromLatch25 bit mapping... */
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if (unlikely(latch_offset == 17))
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latch_offset = 24;
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status = get_register_interruptible(ab8500,
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AB8500_INTERRUPT,
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AB8500_IT_LATCH1_REG + latch_offset,
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&latch_val);
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if (status < 0 || latch_val == 0)
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goto discard;
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status = ab8500_handle_hierarchical_line(ab8500,
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latch_offset, latch_val);
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if (status < 0)
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return status;
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discard:
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hier_val &= ~(1 << latch_bit);
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} while (hier_val);
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return 0;
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}
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static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev)
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{
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struct ab8500 *ab8500 = dev;
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u8 i;
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dev_vdbg(ab8500->dev, "interrupt\n");
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/* Hierarchical interrupt version */
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for (i = 0; i < AB8500_IT_LATCHHIER_NUM; i++) {
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int status;
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u8 hier_val;
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status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
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AB8500_IT_LATCHHIER1_REG + i, &hier_val);
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if (status < 0 || hier_val == 0)
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continue;
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status = ab8500_handle_hierarchical_latch(ab8500, i, hier_val);
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if (status < 0)
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break;
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}
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return IRQ_HANDLED;
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}
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|
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/**
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* ab8500_irq_get_virq(): Map an interrupt on a chip to a virtual IRQ
|
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*
|
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* @ab8500: ab8500_irq controller to operate on.
|
|
* @irq: index of the interrupt requested in the chip IRQs
|
|
*
|
|
* Useful for drivers to request their own IRQs.
|
|
*/
|
|
static int ab8500_irq_get_virq(struct ab8500 *ab8500, int irq)
|
|
{
|
|
if (!ab8500)
|
|
return -EINVAL;
|
|
|
|
return irq_create_mapping(ab8500->domain, irq);
|
|
}
|
|
|
|
static irqreturn_t ab8500_irq(int irq, void *dev)
|
|
{
|
|
struct ab8500 *ab8500 = dev;
|
|
int i;
|
|
|
|
dev_vdbg(ab8500->dev, "interrupt\n");
|
|
|
|
atomic_inc(&ab8500->transfer_ongoing);
|
|
|
|
for (i = 0; i < ab8500->mask_size; i++) {
|
|
int regoffset = ab8500->irq_reg_offset[i];
|
|
int status;
|
|
u8 value;
|
|
|
|
/*
|
|
* Interrupt register 12 doesn't exist prior to AB8500 version
|
|
* 2.0
|
|
*/
|
|
if (regoffset == 11 && is_ab8500_1p1_or_earlier(ab8500))
|
|
continue;
|
|
|
|
status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
|
|
AB8500_IT_LATCH1_REG + regoffset, &value);
|
|
if (status < 0 || value == 0)
|
|
continue;
|
|
|
|
do {
|
|
int bit = __ffs(value);
|
|
int line = i * 8 + bit;
|
|
int virq = ab8500_irq_get_virq(ab8500, line);
|
|
|
|
handle_nested_irq(virq);
|
|
value &= ~(1 << bit);
|
|
|
|
} while (value);
|
|
}
|
|
atomic_dec(&ab8500->transfer_ongoing);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int ab8500_irq_map(struct irq_domain *d, unsigned int virq,
|
|
irq_hw_number_t hwirq)
|
|
{
|
|
struct ab8500 *ab8500 = d->host_data;
|
|
|
|
if (!ab8500)
|
|
return -EINVAL;
|
|
|
|
irq_set_chip_data(virq, ab8500);
|
|
irq_set_chip_and_handler(virq, &ab8500_irq_chip,
|
|
handle_simple_irq);
|
|
irq_set_nested_thread(virq, 1);
|
|
#ifdef CONFIG_ARM
|
|
set_irq_flags(virq, IRQF_VALID);
|
|
#else
|
|
irq_set_noprobe(virq);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct irq_domain_ops ab8500_irq_ops = {
|
|
.map = ab8500_irq_map,
|
|
.xlate = irq_domain_xlate_twocell,
|
|
};
|
|
|
|
static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np)
|
|
{
|
|
int num_irqs;
|
|
|
|
if (is_ab9540(ab8500))
|
|
num_irqs = AB9540_NR_IRQS;
|
|
else if (is_ab8505(ab8500))
|
|
num_irqs = AB8505_NR_IRQS;
|
|
else
|
|
num_irqs = AB8500_NR_IRQS;
|
|
|
|
if (ab8500->irq_base) {
|
|
ab8500->domain = irq_domain_add_legacy(
|
|
NULL, num_irqs, ab8500->irq_base,
|
|
0, &ab8500_irq_ops, ab8500);
|
|
}
|
|
else {
|
|
ab8500->domain = irq_domain_add_linear(
|
|
np, num_irqs, &ab8500_irq_ops, ab8500);
|
|
}
|
|
|
|
if (!ab8500->domain) {
|
|
dev_err(ab8500->dev, "Failed to create irqdomain\n");
|
|
return -ENOSYS;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ab8500_suspend(struct ab8500 *ab8500)
|
|
{
|
|
if (atomic_read(&ab8500->transfer_ongoing))
|
|
return -EINVAL;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/* AB8500 GPIO Resources */
|
|
static struct resource __devinitdata ab8500_gpio_resources[] = {
|
|
{
|
|
.name = "GPIO_INT6",
|
|
.start = AB8500_INT_GPIO6R,
|
|
.end = AB8500_INT_GPIO41F,
|
|
.flags = IORESOURCE_IRQ,
|
|
}
|
|
};
|
|
|
|
/* AB9540 GPIO Resources */
|
|
static struct resource __devinitdata ab9540_gpio_resources[] = {
|
|
{
|
|
.name = "GPIO_INT6",
|
|
.start = AB8500_INT_GPIO6R,
|
|
.end = AB8500_INT_GPIO41F,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "GPIO_INT14",
|
|
.start = AB9540_INT_GPIO50R,
|
|
.end = AB9540_INT_GPIO54R,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "GPIO_INT15",
|
|
.start = AB9540_INT_GPIO50F,
|
|
.end = AB9540_INT_GPIO54F,
|
|
.flags = IORESOURCE_IRQ,
|
|
}
|
|
};
|
|
|
|
static struct resource __devinitdata ab8500_gpadc_resources[] = {
|
|
{
|
|
.name = "HW_CONV_END",
|
|
.start = AB8500_INT_GP_HW_ADC_CONV_END,
|
|
.end = AB8500_INT_GP_HW_ADC_CONV_END,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "SW_CONV_END",
|
|
.start = AB8500_INT_GP_SW_ADC_CONV_END,
|
|
.end = AB8500_INT_GP_SW_ADC_CONV_END,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct resource __devinitdata ab8500_rtc_resources[] = {
|
|
{
|
|
.name = "60S",
|
|
.start = AB8500_INT_RTC_60S,
|
|
.end = AB8500_INT_RTC_60S,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "ALARM",
|
|
.start = AB8500_INT_RTC_ALARM,
|
|
.end = AB8500_INT_RTC_ALARM,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct resource __devinitdata ab8500_poweronkey_db_resources[] = {
|
|
{
|
|
.name = "ONKEY_DBF",
|
|
.start = AB8500_INT_PON_KEY1DB_F,
|
|
.end = AB8500_INT_PON_KEY1DB_F,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "ONKEY_DBR",
|
|
.start = AB8500_INT_PON_KEY1DB_R,
|
|
.end = AB8500_INT_PON_KEY1DB_R,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct resource __devinitdata ab8500_av_acc_detect_resources[] = {
|
|
{
|
|
.name = "ACC_DETECT_1DB_F",
|
|
.start = AB8500_INT_ACC_DETECT_1DB_F,
|
|
.end = AB8500_INT_ACC_DETECT_1DB_F,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "ACC_DETECT_1DB_R",
|
|
.start = AB8500_INT_ACC_DETECT_1DB_R,
|
|
.end = AB8500_INT_ACC_DETECT_1DB_R,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "ACC_DETECT_21DB_F",
|
|
.start = AB8500_INT_ACC_DETECT_21DB_F,
|
|
.end = AB8500_INT_ACC_DETECT_21DB_F,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "ACC_DETECT_21DB_R",
|
|
.start = AB8500_INT_ACC_DETECT_21DB_R,
|
|
.end = AB8500_INT_ACC_DETECT_21DB_R,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "ACC_DETECT_22DB_F",
|
|
.start = AB8500_INT_ACC_DETECT_22DB_F,
|
|
.end = AB8500_INT_ACC_DETECT_22DB_F,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "ACC_DETECT_22DB_R",
|
|
.start = AB8500_INT_ACC_DETECT_22DB_R,
|
|
.end = AB8500_INT_ACC_DETECT_22DB_R,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct resource __devinitdata ab8500_charger_resources[] = {
|
|
{
|
|
.name = "MAIN_CH_UNPLUG_DET",
|
|
.start = AB8500_INT_MAIN_CH_UNPLUG_DET,
|
|
.end = AB8500_INT_MAIN_CH_UNPLUG_DET,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "MAIN_CHARGE_PLUG_DET",
|
|
.start = AB8500_INT_MAIN_CH_PLUG_DET,
|
|
.end = AB8500_INT_MAIN_CH_PLUG_DET,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "VBUS_DET_R",
|
|
.start = AB8500_INT_VBUS_DET_R,
|
|
.end = AB8500_INT_VBUS_DET_R,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "VBUS_DET_F",
|
|
.start = AB8500_INT_VBUS_DET_F,
|
|
.end = AB8500_INT_VBUS_DET_F,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "USB_LINK_STATUS",
|
|
.start = AB8500_INT_USB_LINK_STATUS,
|
|
.end = AB8500_INT_USB_LINK_STATUS,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "VBUS_OVV",
|
|
.start = AB8500_INT_VBUS_OVV,
|
|
.end = AB8500_INT_VBUS_OVV,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "USB_CH_TH_PROT_R",
|
|
.start = AB8500_INT_USB_CH_TH_PROT_R,
|
|
.end = AB8500_INT_USB_CH_TH_PROT_R,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "USB_CH_TH_PROT_F",
|
|
.start = AB8500_INT_USB_CH_TH_PROT_F,
|
|
.end = AB8500_INT_USB_CH_TH_PROT_F,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "MAIN_EXT_CH_NOT_OK",
|
|
.start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
|
|
.end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "MAIN_CH_TH_PROT_R",
|
|
.start = AB8500_INT_MAIN_CH_TH_PROT_R,
|
|
.end = AB8500_INT_MAIN_CH_TH_PROT_R,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "MAIN_CH_TH_PROT_F",
|
|
.start = AB8500_INT_MAIN_CH_TH_PROT_F,
|
|
.end = AB8500_INT_MAIN_CH_TH_PROT_F,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "USB_CHARGER_NOT_OKR",
|
|
.start = AB8500_INT_USB_CHARGER_NOT_OKR,
|
|
.end = AB8500_INT_USB_CHARGER_NOT_OKR,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "CH_WD_EXP",
|
|
.start = AB8500_INT_CH_WD_EXP,
|
|
.end = AB8500_INT_CH_WD_EXP,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct resource __devinitdata ab8500_btemp_resources[] = {
|
|
{
|
|
.name = "BAT_CTRL_INDB",
|
|
.start = AB8500_INT_BAT_CTRL_INDB,
|
|
.end = AB8500_INT_BAT_CTRL_INDB,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "BTEMP_LOW",
|
|
.start = AB8500_INT_BTEMP_LOW,
|
|
.end = AB8500_INT_BTEMP_LOW,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "BTEMP_HIGH",
|
|
.start = AB8500_INT_BTEMP_HIGH,
|
|
.end = AB8500_INT_BTEMP_HIGH,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "BTEMP_LOW_MEDIUM",
|
|
.start = AB8500_INT_BTEMP_LOW_MEDIUM,
|
|
.end = AB8500_INT_BTEMP_LOW_MEDIUM,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "BTEMP_MEDIUM_HIGH",
|
|
.start = AB8500_INT_BTEMP_MEDIUM_HIGH,
|
|
.end = AB8500_INT_BTEMP_MEDIUM_HIGH,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct resource __devinitdata ab8500_fg_resources[] = {
|
|
{
|
|
.name = "NCONV_ACCU",
|
|
.start = AB8500_INT_CCN_CONV_ACC,
|
|
.end = AB8500_INT_CCN_CONV_ACC,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "BATT_OVV",
|
|
.start = AB8500_INT_BATT_OVV,
|
|
.end = AB8500_INT_BATT_OVV,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "LOW_BAT_F",
|
|
.start = AB8500_INT_LOW_BAT_F,
|
|
.end = AB8500_INT_LOW_BAT_F,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "LOW_BAT_R",
|
|
.start = AB8500_INT_LOW_BAT_R,
|
|
.end = AB8500_INT_LOW_BAT_R,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "CC_INT_CALIB",
|
|
.start = AB8500_INT_CC_INT_CALIB,
|
|
.end = AB8500_INT_CC_INT_CALIB,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "CCEOC",
|
|
.start = AB8500_INT_CCEOC,
|
|
.end = AB8500_INT_CCEOC,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct resource __devinitdata ab8500_chargalg_resources[] = {};
|
|
|
|
#ifdef CONFIG_DEBUG_FS
|
|
static struct resource __devinitdata ab8500_debug_resources[] = {
|
|
{
|
|
.name = "IRQ_FIRST",
|
|
.start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
|
|
.end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "IRQ_LAST",
|
|
.start = AB8500_INT_XTAL32K_KO,
|
|
.end = AB8500_INT_XTAL32K_KO,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
#endif
|
|
|
|
static struct resource __devinitdata ab8500_usb_resources[] = {
|
|
{
|
|
.name = "ID_WAKEUP_R",
|
|
.start = AB8500_INT_ID_WAKEUP_R,
|
|
.end = AB8500_INT_ID_WAKEUP_R,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "ID_WAKEUP_F",
|
|
.start = AB8500_INT_ID_WAKEUP_F,
|
|
.end = AB8500_INT_ID_WAKEUP_F,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "VBUS_DET_F",
|
|
.start = AB8500_INT_VBUS_DET_F,
|
|
.end = AB8500_INT_VBUS_DET_F,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "VBUS_DET_R",
|
|
.start = AB8500_INT_VBUS_DET_R,
|
|
.end = AB8500_INT_VBUS_DET_R,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "USB_LINK_STATUS",
|
|
.start = AB8500_INT_USB_LINK_STATUS,
|
|
.end = AB8500_INT_USB_LINK_STATUS,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "USB_ADP_PROBE_PLUG",
|
|
.start = AB8500_INT_ADP_PROBE_PLUG,
|
|
.end = AB8500_INT_ADP_PROBE_PLUG,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "USB_ADP_PROBE_UNPLUG",
|
|
.start = AB8500_INT_ADP_PROBE_UNPLUG,
|
|
.end = AB8500_INT_ADP_PROBE_UNPLUG,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct resource __devinitdata ab8505_iddet_resources[] = {
|
|
{
|
|
.name = "KeyDeglitch",
|
|
.start = AB8505_INT_KEYDEGLITCH,
|
|
.end = AB8505_INT_KEYDEGLITCH,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "KP",
|
|
.start = AB8505_INT_KP,
|
|
.end = AB8505_INT_KP,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "IKP",
|
|
.start = AB8505_INT_IKP,
|
|
.end = AB8505_INT_IKP,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "IKR",
|
|
.start = AB8505_INT_IKR,
|
|
.end = AB8505_INT_IKR,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "KeyStuck",
|
|
.start = AB8505_INT_KEYSTUCK,
|
|
.end = AB8505_INT_KEYSTUCK,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct resource __devinitdata ab8500_temp_resources[] = {
|
|
{
|
|
.name = "AB8500_TEMP_WARM",
|
|
.start = AB8500_INT_TEMP_WARM,
|
|
.end = AB8500_INT_TEMP_WARM,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct mfd_cell __devinitdata abx500_common_devs[] = {
|
|
#ifdef CONFIG_DEBUG_FS
|
|
{
|
|
.name = "ab8500-debug",
|
|
.of_compatible = "stericsson,ab8500-debug",
|
|
.num_resources = ARRAY_SIZE(ab8500_debug_resources),
|
|
.resources = ab8500_debug_resources,
|
|
},
|
|
#endif
|
|
{
|
|
.name = "ab8500-sysctrl",
|
|
.of_compatible = "stericsson,ab8500-sysctrl",
|
|
},
|
|
{
|
|
.name = "ab8500-regulator",
|
|
.of_compatible = "stericsson,ab8500-regulator",
|
|
},
|
|
{
|
|
.name = "ab8500-gpadc",
|
|
.of_compatible = "stericsson,ab8500-gpadc",
|
|
.num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
|
|
.resources = ab8500_gpadc_resources,
|
|
},
|
|
{
|
|
.name = "ab8500-rtc",
|
|
.of_compatible = "stericsson,ab8500-rtc",
|
|
.num_resources = ARRAY_SIZE(ab8500_rtc_resources),
|
|
.resources = ab8500_rtc_resources,
|
|
},
|
|
{
|
|
.name = "ab8500-acc-det",
|
|
.of_compatible = "stericsson,ab8500-acc-det",
|
|
.num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
|
|
.resources = ab8500_av_acc_detect_resources,
|
|
},
|
|
{
|
|
.name = "ab8500-poweron-key",
|
|
.of_compatible = "stericsson,ab8500-poweron-key",
|
|
.num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
|
|
.resources = ab8500_poweronkey_db_resources,
|
|
},
|
|
{
|
|
.name = "ab8500-pwm",
|
|
.of_compatible = "stericsson,ab8500-pwm",
|
|
.id = 1,
|
|
},
|
|
{
|
|
.name = "ab8500-pwm",
|
|
.of_compatible = "stericsson,ab8500-pwm",
|
|
.id = 2,
|
|
},
|
|
{
|
|
.name = "ab8500-pwm",
|
|
.of_compatible = "stericsson,ab8500-pwm",
|
|
.id = 3,
|
|
},
|
|
{
|
|
.name = "ab8500-leds",
|
|
.of_compatible = "stericsson,ab8500-leds",
|
|
},
|
|
{
|
|
.name = "ab8500-denc",
|
|
.of_compatible = "stericsson,ab8500-denc",
|
|
},
|
|
{
|
|
.name = "ab8500-temp",
|
|
.of_compatible = "stericsson,ab8500-temp",
|
|
.num_resources = ARRAY_SIZE(ab8500_temp_resources),
|
|
.resources = ab8500_temp_resources,
|
|
},
|
|
};
|
|
|
|
static struct mfd_cell __devinitdata ab8500_bm_devs[] = {
|
|
{
|
|
.name = "ab8500-charger",
|
|
.num_resources = ARRAY_SIZE(ab8500_charger_resources),
|
|
.resources = ab8500_charger_resources,
|
|
},
|
|
{
|
|
.name = "ab8500-btemp",
|
|
.num_resources = ARRAY_SIZE(ab8500_btemp_resources),
|
|
.resources = ab8500_btemp_resources,
|
|
},
|
|
{
|
|
.name = "ab8500-fg",
|
|
.num_resources = ARRAY_SIZE(ab8500_fg_resources),
|
|
.resources = ab8500_fg_resources,
|
|
},
|
|
{
|
|
.name = "ab8500-chargalg",
|
|
.num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
|
|
.resources = ab8500_chargalg_resources,
|
|
},
|
|
};
|
|
|
|
static struct mfd_cell __devinitdata ab8500_devs[] = {
|
|
{
|
|
.name = "ab8500-gpio",
|
|
.of_compatible = "stericsson,ab8500-gpio",
|
|
.num_resources = ARRAY_SIZE(ab8500_gpio_resources),
|
|
.resources = ab8500_gpio_resources,
|
|
},
|
|
{
|
|
.name = "ab8500-usb",
|
|
.of_compatible = "stericsson,ab8500-usb",
|
|
.num_resources = ARRAY_SIZE(ab8500_usb_resources),
|
|
.resources = ab8500_usb_resources,
|
|
},
|
|
{
|
|
.name = "ab8500-codec",
|
|
.of_compatible = "stericsson,ab8500-codec",
|
|
},
|
|
};
|
|
|
|
static struct mfd_cell __devinitdata ab9540_devs[] = {
|
|
{
|
|
.name = "ab8500-gpio",
|
|
.num_resources = ARRAY_SIZE(ab9540_gpio_resources),
|
|
.resources = ab9540_gpio_resources,
|
|
},
|
|
{
|
|
.name = "ab9540-usb",
|
|
.num_resources = ARRAY_SIZE(ab8500_usb_resources),
|
|
.resources = ab8500_usb_resources,
|
|
},
|
|
{
|
|
.name = "ab9540-codec",
|
|
},
|
|
};
|
|
|
|
/* Device list common to ab9540 and ab8505 */
|
|
static struct mfd_cell __devinitdata ab9540_ab8505_devs[] = {
|
|
{
|
|
.name = "ab-iddet",
|
|
.num_resources = ARRAY_SIZE(ab8505_iddet_resources),
|
|
.resources = ab8505_iddet_resources,
|
|
},
|
|
};
|
|
|
|
static ssize_t show_chip_id(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct ab8500 *ab8500;
|
|
|
|
ab8500 = dev_get_drvdata(dev);
|
|
return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
|
|
}
|
|
|
|
/*
|
|
* ab8500 has switched off due to (SWITCH_OFF_STATUS):
|
|
* 0x01 Swoff bit programming
|
|
* 0x02 Thermal protection activation
|
|
* 0x04 Vbat lower then BattOk falling threshold
|
|
* 0x08 Watchdog expired
|
|
* 0x10 Non presence of 32kHz clock
|
|
* 0x20 Battery level lower than power on reset threshold
|
|
* 0x40 Power on key 1 pressed longer than 10 seconds
|
|
* 0x80 DB8500 thermal shutdown
|
|
*/
|
|
static ssize_t show_switch_off_status(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
int ret;
|
|
u8 value;
|
|
struct ab8500 *ab8500;
|
|
|
|
ab8500 = dev_get_drvdata(dev);
|
|
ret = get_register_interruptible(ab8500, AB8500_RTC,
|
|
AB8500_SWITCH_OFF_STATUS, &value);
|
|
if (ret < 0)
|
|
return ret;
|
|
return sprintf(buf, "%#x\n", value);
|
|
}
|
|
|
|
/*
|
|
* ab8500 has turned on due to (TURN_ON_STATUS):
|
|
* 0x01 PORnVbat
|
|
* 0x02 PonKey1dbF
|
|
* 0x04 PonKey2dbF
|
|
* 0x08 RTCAlarm
|
|
* 0x10 MainChDet
|
|
* 0x20 VbusDet
|
|
* 0x40 UsbIDDetect
|
|
* 0x80 Reserved
|
|
*/
|
|
static ssize_t show_turn_on_status(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
int ret;
|
|
u8 value;
|
|
struct ab8500 *ab8500;
|
|
|
|
ab8500 = dev_get_drvdata(dev);
|
|
ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
|
|
AB8500_TURN_ON_STATUS, &value);
|
|
if (ret < 0)
|
|
return ret;
|
|
return sprintf(buf, "%#x\n", value);
|
|
}
|
|
|
|
static ssize_t show_ab9540_dbbrstn(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct ab8500 *ab8500;
|
|
int ret;
|
|
u8 value;
|
|
|
|
ab8500 = dev_get_drvdata(dev);
|
|
|
|
ret = get_register_interruptible(ab8500, AB8500_REGU_CTRL2,
|
|
AB9540_MODEM_CTRL2_REG, &value);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return sprintf(buf, "%d\n",
|
|
(value & AB9540_MODEM_CTRL2_SWDBBRSTN_BIT) ? 1 : 0);
|
|
}
|
|
|
|
static ssize_t store_ab9540_dbbrstn(struct device *dev,
|
|
struct device_attribute *attr, const char *buf, size_t count)
|
|
{
|
|
struct ab8500 *ab8500;
|
|
int ret = count;
|
|
int err;
|
|
u8 bitvalues;
|
|
|
|
ab8500 = dev_get_drvdata(dev);
|
|
|
|
if (count > 0) {
|
|
switch (buf[0]) {
|
|
case '0':
|
|
bitvalues = 0;
|
|
break;
|
|
case '1':
|
|
bitvalues = AB9540_MODEM_CTRL2_SWDBBRSTN_BIT;
|
|
break;
|
|
default:
|
|
goto exit;
|
|
}
|
|
|
|
err = mask_and_set_register_interruptible(ab8500,
|
|
AB8500_REGU_CTRL2, AB9540_MODEM_CTRL2_REG,
|
|
AB9540_MODEM_CTRL2_SWDBBRSTN_BIT, bitvalues);
|
|
if (err)
|
|
dev_info(ab8500->dev,
|
|
"Failed to set DBBRSTN %c, err %#x\n",
|
|
buf[0], err);
|
|
}
|
|
|
|
exit:
|
|
return ret;
|
|
}
|
|
|
|
static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL);
|
|
static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL);
|
|
static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL);
|
|
static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR,
|
|
show_ab9540_dbbrstn, store_ab9540_dbbrstn);
|
|
|
|
static struct attribute *ab8500_sysfs_entries[] = {
|
|
&dev_attr_chip_id.attr,
|
|
&dev_attr_switch_off_status.attr,
|
|
&dev_attr_turn_on_status.attr,
|
|
NULL,
|
|
};
|
|
|
|
static struct attribute *ab9540_sysfs_entries[] = {
|
|
&dev_attr_chip_id.attr,
|
|
&dev_attr_switch_off_status.attr,
|
|
&dev_attr_turn_on_status.attr,
|
|
&dev_attr_dbbrstn.attr,
|
|
NULL,
|
|
};
|
|
|
|
static struct attribute_group ab8500_attr_group = {
|
|
.attrs = ab8500_sysfs_entries,
|
|
};
|
|
|
|
static struct attribute_group ab9540_attr_group = {
|
|
.attrs = ab9540_sysfs_entries,
|
|
};
|
|
|
|
static int __devinit ab8500_probe(struct platform_device *pdev)
|
|
{
|
|
static char *switch_off_status[] = {
|
|
"Swoff bit programming",
|
|
"Thermal protection activation",
|
|
"Vbat lower then BattOk falling threshold",
|
|
"Watchdog expired",
|
|
"Non presence of 32kHz clock",
|
|
"Battery level lower than power on reset threshold",
|
|
"Power on key 1 pressed longer than 10 seconds",
|
|
"DB8500 thermal shutdown"};
|
|
struct ab8500_platform_data *plat = dev_get_platdata(&pdev->dev);
|
|
const struct platform_device_id *platid = platform_get_device_id(pdev);
|
|
enum ab8500_version version = AB8500_VERSION_UNDEFINED;
|
|
struct device_node *np = pdev->dev.of_node;
|
|
struct ab8500 *ab8500;
|
|
struct resource *resource;
|
|
int ret;
|
|
int i;
|
|
u8 value;
|
|
|
|
ab8500 = kzalloc(sizeof *ab8500, GFP_KERNEL);
|
|
if (!ab8500)
|
|
return -ENOMEM;
|
|
|
|
if (plat)
|
|
ab8500->irq_base = plat->irq_base;
|
|
|
|
ab8500->dev = &pdev->dev;
|
|
|
|
resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
|
|
if (!resource) {
|
|
ret = -ENODEV;
|
|
goto out_free_ab8500;
|
|
}
|
|
|
|
ab8500->irq = resource->start;
|
|
|
|
ab8500->read = ab8500_prcmu_read;
|
|
ab8500->write = ab8500_prcmu_write;
|
|
ab8500->write_masked = ab8500_prcmu_write_masked;
|
|
|
|
mutex_init(&ab8500->lock);
|
|
mutex_init(&ab8500->irq_lock);
|
|
atomic_set(&ab8500->transfer_ongoing, 0);
|
|
|
|
platform_set_drvdata(pdev, ab8500);
|
|
|
|
if (platid)
|
|
version = platid->driver_data;
|
|
|
|
if (version != AB8500_VERSION_UNDEFINED)
|
|
ab8500->version = version;
|
|
else {
|
|
ret = get_register_interruptible(ab8500, AB8500_MISC,
|
|
AB8500_IC_NAME_REG, &value);
|
|
if (ret < 0)
|
|
goto out_free_ab8500;
|
|
|
|
ab8500->version = value;
|
|
}
|
|
|
|
ret = get_register_interruptible(ab8500, AB8500_MISC,
|
|
AB8500_REV_REG, &value);
|
|
if (ret < 0)
|
|
goto out_free_ab8500;
|
|
|
|
ab8500->chip_id = value;
|
|
|
|
dev_info(ab8500->dev, "detected chip, %s rev. %1x.%1x\n",
|
|
ab8500_version_str[ab8500->version],
|
|
ab8500->chip_id >> 4,
|
|
ab8500->chip_id & 0x0F);
|
|
|
|
/* Configure AB8500 or AB9540 IRQ */
|
|
if (is_ab9540(ab8500) || is_ab8505(ab8500)) {
|
|
ab8500->mask_size = AB9540_NUM_IRQ_REGS;
|
|
ab8500->irq_reg_offset = ab9540_irq_regoffset;
|
|
} else {
|
|
ab8500->mask_size = AB8500_NUM_IRQ_REGS;
|
|
ab8500->irq_reg_offset = ab8500_irq_regoffset;
|
|
}
|
|
ab8500->mask = kzalloc(ab8500->mask_size, GFP_KERNEL);
|
|
if (!ab8500->mask)
|
|
return -ENOMEM;
|
|
ab8500->oldmask = kzalloc(ab8500->mask_size, GFP_KERNEL);
|
|
if (!ab8500->oldmask) {
|
|
ret = -ENOMEM;
|
|
goto out_freemask;
|
|
}
|
|
/*
|
|
* ab8500 has switched off due to (SWITCH_OFF_STATUS):
|
|
* 0x01 Swoff bit programming
|
|
* 0x02 Thermal protection activation
|
|
* 0x04 Vbat lower then BattOk falling threshold
|
|
* 0x08 Watchdog expired
|
|
* 0x10 Non presence of 32kHz clock
|
|
* 0x20 Battery level lower than power on reset threshold
|
|
* 0x40 Power on key 1 pressed longer than 10 seconds
|
|
* 0x80 DB8500 thermal shutdown
|
|
*/
|
|
|
|
ret = get_register_interruptible(ab8500, AB8500_RTC,
|
|
AB8500_SWITCH_OFF_STATUS, &value);
|
|
if (ret < 0)
|
|
return ret;
|
|
dev_info(ab8500->dev, "switch off cause(s) (%#x): ", value);
|
|
|
|
if (value) {
|
|
for (i = 0; i < ARRAY_SIZE(switch_off_status); i++) {
|
|
if (value & 1)
|
|
printk(KERN_CONT " \"%s\"",
|
|
switch_off_status[i]);
|
|
value = value >> 1;
|
|
|
|
}
|
|
printk(KERN_CONT "\n");
|
|
} else {
|
|
printk(KERN_CONT " None\n");
|
|
}
|
|
|
|
if (plat && plat->init)
|
|
plat->init(ab8500);
|
|
|
|
/* Clear and mask all interrupts */
|
|
for (i = 0; i < ab8500->mask_size; i++) {
|
|
/*
|
|
* Interrupt register 12 doesn't exist prior to AB8500 version
|
|
* 2.0
|
|
*/
|
|
if (ab8500->irq_reg_offset[i] == 11 &&
|
|
is_ab8500_1p1_or_earlier(ab8500))
|
|
continue;
|
|
|
|
get_register_interruptible(ab8500, AB8500_INTERRUPT,
|
|
AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i],
|
|
&value);
|
|
set_register_interruptible(ab8500, AB8500_INTERRUPT,
|
|
AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i], 0xff);
|
|
}
|
|
|
|
ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
|
|
if (ret)
|
|
goto out_freeoldmask;
|
|
|
|
for (i = 0; i < ab8500->mask_size; i++)
|
|
ab8500->mask[i] = ab8500->oldmask[i] = 0xff;
|
|
|
|
ret = ab8500_irq_init(ab8500, np);
|
|
if (ret)
|
|
goto out_freeoldmask;
|
|
|
|
/* Activate this feature only in ab9540 */
|
|
/* till tests are done on ab8500 1p2 or later*/
|
|
if (is_ab9540(ab8500)) {
|
|
ret = request_threaded_irq(ab8500->irq, NULL,
|
|
ab8500_hierarchical_irq,
|
|
IRQF_ONESHOT | IRQF_NO_SUSPEND,
|
|
"ab8500", ab8500);
|
|
}
|
|
else {
|
|
ret = request_threaded_irq(ab8500->irq, NULL,
|
|
ab8500_irq,
|
|
IRQF_ONESHOT | IRQF_NO_SUSPEND,
|
|
"ab8500", ab8500);
|
|
if (ret)
|
|
goto out_freeoldmask;
|
|
}
|
|
|
|
ret = mfd_add_devices(ab8500->dev, 0, abx500_common_devs,
|
|
ARRAY_SIZE(abx500_common_devs), NULL,
|
|
ab8500->irq_base, ab8500->domain);
|
|
if (ret)
|
|
goto out_freeirq;
|
|
|
|
if (is_ab9540(ab8500))
|
|
ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
|
|
ARRAY_SIZE(ab9540_devs), NULL,
|
|
ab8500->irq_base, ab8500->domain);
|
|
else
|
|
ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
|
|
ARRAY_SIZE(ab8500_devs), NULL,
|
|
ab8500->irq_base, ab8500->domain);
|
|
if (ret)
|
|
goto out_freeirq;
|
|
|
|
if (is_ab9540(ab8500) || is_ab8505(ab8500))
|
|
ret = mfd_add_devices(ab8500->dev, 0, ab9540_ab8505_devs,
|
|
ARRAY_SIZE(ab9540_ab8505_devs), NULL,
|
|
ab8500->irq_base, ab8500->domain);
|
|
if (ret)
|
|
goto out_freeirq;
|
|
|
|
if (!no_bm) {
|
|
/* Add battery management devices */
|
|
ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs,
|
|
ARRAY_SIZE(ab8500_bm_devs), NULL,
|
|
ab8500->irq_base, ab8500->domain);
|
|
if (ret)
|
|
dev_err(ab8500->dev, "error adding bm devices\n");
|
|
}
|
|
|
|
if (is_ab9540(ab8500))
|
|
ret = sysfs_create_group(&ab8500->dev->kobj,
|
|
&ab9540_attr_group);
|
|
else
|
|
ret = sysfs_create_group(&ab8500->dev->kobj,
|
|
&ab8500_attr_group);
|
|
if (ret)
|
|
dev_err(ab8500->dev, "error creating sysfs entries\n");
|
|
|
|
return ret;
|
|
|
|
out_freeirq:
|
|
free_irq(ab8500->irq, ab8500);
|
|
out_freeoldmask:
|
|
kfree(ab8500->oldmask);
|
|
out_freemask:
|
|
kfree(ab8500->mask);
|
|
out_free_ab8500:
|
|
kfree(ab8500);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int __devexit ab8500_remove(struct platform_device *pdev)
|
|
{
|
|
struct ab8500 *ab8500 = platform_get_drvdata(pdev);
|
|
|
|
if (is_ab9540(ab8500))
|
|
sysfs_remove_group(&ab8500->dev->kobj, &ab9540_attr_group);
|
|
else
|
|
sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group);
|
|
|
|
mfd_remove_devices(ab8500->dev);
|
|
free_irq(ab8500->irq, ab8500);
|
|
|
|
kfree(ab8500->oldmask);
|
|
kfree(ab8500->mask);
|
|
kfree(ab8500);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct platform_device_id ab8500_id[] = {
|
|
{ "ab8500-core", AB8500_VERSION_AB8500 },
|
|
{ "ab8505-i2c", AB8500_VERSION_AB8505 },
|
|
{ "ab9540-i2c", AB8500_VERSION_AB9540 },
|
|
{ "ab8540-i2c", AB8500_VERSION_AB8540 },
|
|
{ }
|
|
};
|
|
|
|
static struct platform_driver ab8500_core_driver = {
|
|
.driver = {
|
|
.name = "ab8500-core",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.probe = ab8500_probe,
|
|
.remove = __devexit_p(ab8500_remove),
|
|
.id_table = ab8500_id,
|
|
};
|
|
|
|
static int __init ab8500_core_init(void)
|
|
{
|
|
return platform_driver_register(&ab8500_core_driver);
|
|
}
|
|
|
|
static void __exit ab8500_core_exit(void)
|
|
{
|
|
platform_driver_unregister(&ab8500_core_driver);
|
|
}
|
|
core_initcall(ab8500_core_init);
|
|
module_exit(ab8500_core_exit);
|
|
|
|
MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent");
|
|
MODULE_DESCRIPTION("AB8500 MFD core");
|
|
MODULE_LICENSE("GPL v2");
|