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1307 lines
32 KiB
1307 lines
32 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Copyright (C) ST-Ericsson SA 2010 |
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* |
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* Author: Srinidhi Kasagar <[email protected]> |
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* Author: Rabin Vincent <[email protected]> |
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* Author: Mattias Wallin <[email protected]> |
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*/ |
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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/moduleparam.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/abx500/ab8500-bm.h> |
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#include <linux/mfd/dbx500-prcmu.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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/* |
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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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/* |
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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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/* |
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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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#define AB8500_IT_MASK25_REG 0x58 |
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|
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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 AB8540_IT_LATCHHIER4_REG 0x63 |
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#define AB8500_IT_LATCHHIER_NUM 3 |
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#define AB8540_IT_LATCHHIER_NUM 4 |
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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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#define AB8505_TURN_ON_STATUS_2 0x04 |
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#define AB8500_CH_USBCH_STAT1_REG 0x02 |
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#define VBUS_DET_DBNC100 0x02 |
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#define VBUS_DET_DBNC1 0x01 |
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static DEFINE_SPINLOCK(on_stat_lock); |
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static u8 turn_on_stat_mask = 0xFF; |
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static u8 turn_on_stat_set; |
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static bool no_bm; /* No battery management */ |
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/* |
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* not really modular, but the easiest way to keep compat with existing |
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* bootargs behaviour is to continue using module_param here. |
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*/ |
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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 / AB8505 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, 5, 22, 23 |
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}; |
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/* AB8540 support */ |
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static const int ab8540_irq_regoffset[AB8540_NUM_IRQ_REGS] = { |
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0, 1, 2, 3, 4, -1, -1, -1, -1, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22, |
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23, 25, 26, 27, 28, 29, 30, 31, |
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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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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 < 0) ? ret : 0; |
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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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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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.dump_all_banks = ab8500_dump_all_banks, |
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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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if (ab8500->irq_reg_offset[i] < 0) |
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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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/* The AB8500 GPIOs have two interrupts each (rising & falling). */ |
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if (offset >= AB8500_INT_GPIO6R && offset <= AB8500_INT_GPIO41R) |
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ab8500->mask[index + 2] |= mask; |
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if (offset >= AB9540_INT_GPIO50R && offset <= AB9540_INT_GPIO54R) |
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ab8500->mask[index + 1] |= mask; |
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if (offset == AB8540_INT_GPIO43R || offset == AB8540_INT_GPIO44R) |
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/* Here the falling IRQ is one bit lower */ |
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ab8500->mask[index] |= (mask << 1); |
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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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unsigned int type = irqd_get_trigger_type(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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|
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if (type & IRQ_TYPE_EDGE_RISING) |
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ab8500->mask[index] &= ~mask; |
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|
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/* The AB8500 GPIOs have two interrupts each (rising & falling). */ |
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if (type & IRQ_TYPE_EDGE_FALLING) { |
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if (offset >= AB8500_INT_GPIO6R && offset <= AB8500_INT_GPIO41R) |
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ab8500->mask[index + 2] &= ~mask; |
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else if (offset >= AB9540_INT_GPIO50R && |
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offset <= AB9540_INT_GPIO54R) |
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ab8500->mask[index + 1] &= ~mask; |
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else if (offset == AB8540_INT_GPIO43R || |
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offset == AB8540_INT_GPIO44R) |
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/* Here the falling IRQ is one bit lower */ |
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ab8500->mask[index] &= ~(mask << 1); |
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else |
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ab8500->mask[index] &= ~mask; |
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} else { |
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/* Satisfies the case where type is not set. */ |
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ab8500->mask[index] &= ~mask; |
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} |
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} |
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|
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static int ab8500_irq_set_type(struct irq_data *data, unsigned int type) |
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{ |
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return 0; |
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} |
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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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.irq_set_type = ab8500_irq_set_type, |
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}; |
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|
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static void update_latch_offset(u8 *offset, int i) |
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{ |
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/* Fix inconsistent ITFromLatch25 bit mapping... */ |
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if (unlikely(*offset == 17)) |
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*offset = 24; |
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/* Fix inconsistent ab8540 bit mapping... */ |
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if (unlikely(*offset == 16)) |
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*offset = 25; |
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if ((i == 3) && (*offset >= 24)) |
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*offset += 2; |
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} |
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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, line, i; |
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|
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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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|
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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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/* ignore masked out interrupts */ |
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latch_val &= ~ab8500->mask[i]; |
|
|
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while (latch_val) { |
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int_bit = __ffs(latch_val); |
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line = (i << 3) + int_bit; |
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latch_val &= ~(1 << int_bit); |
|
|
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/* |
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* This handles the falling edge hwirqs from the GPIO |
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* lines. Route them back to the line registered for the |
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* rising IRQ, as this is merely a flag for the same IRQ |
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* in linux terms. |
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*/ |
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if (line >= AB8500_INT_GPIO6F && line <= AB8500_INT_GPIO41F) |
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line -= 16; |
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if (line >= AB9540_INT_GPIO50F && line <= AB9540_INT_GPIO54F) |
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line -= 8; |
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if (line == AB8540_INT_GPIO43F || line == AB8540_INT_GPIO44F) |
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line += 1; |
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|
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handle_nested_irq(irq_create_mapping(ab8500->domain, line)); |
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} |
|
|
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return 0; |
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} |
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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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|
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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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|
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update_latch_offset(&latch_offset, hier_offset); |
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|
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status = get_register_interruptible(ab8500, |
|
AB8500_INTERRUPT, |
|
AB8500_IT_LATCH1_REG + latch_offset, |
|
&latch_val); |
|
if (status < 0 || latch_val == 0) |
|
goto discard; |
|
|
|
status = ab8500_handle_hierarchical_line(ab8500, |
|
latch_offset, latch_val); |
|
if (status < 0) |
|
return status; |
|
discard: |
|
hier_val &= ~(1 << latch_bit); |
|
} while (hier_val); |
|
|
|
return 0; |
|
} |
|
|
|
static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev) |
|
{ |
|
struct ab8500 *ab8500 = dev; |
|
u8 i; |
|
|
|
dev_vdbg(ab8500->dev, "interrupt\n"); |
|
|
|
/* Hierarchical interrupt version */ |
|
for (i = 0; i < (ab8500->it_latchhier_num); i++) { |
|
int status; |
|
u8 hier_val; |
|
|
|
status = get_register_interruptible(ab8500, AB8500_INTERRUPT, |
|
AB8500_IT_LATCHHIER1_REG + i, &hier_val); |
|
if (status < 0 || hier_val == 0) |
|
continue; |
|
|
|
status = ab8500_handle_hierarchical_latch(ab8500, i, hier_val); |
|
if (status < 0) |
|
break; |
|
} |
|
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); |
|
irq_set_noprobe(virq); |
|
|
|
return 0; |
|
} |
|
|
|
static const 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_ab8540(ab8500)) |
|
num_irqs = AB8540_NR_IRQS; |
|
else 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 ->irq_base is zero this will give a linear mapping */ |
|
ab8500->domain = irq_domain_add_simple(ab8500->dev->of_node, |
|
num_irqs, 0, |
|
&ab8500_irq_ops, ab8500); |
|
|
|
if (!ab8500->domain) { |
|
dev_err(ab8500->dev, "Failed to create irqdomain\n"); |
|
return -ENODEV; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
int ab8500_suspend(struct ab8500 *ab8500) |
|
{ |
|
if (atomic_read(&ab8500->transfer_ongoing)) |
|
return -EINVAL; |
|
|
|
return 0; |
|
} |
|
|
|
static const struct mfd_cell ab8500_bm_devs[] = { |
|
MFD_CELL_OF("ab8500-charger", NULL, &ab8500_bm_data, |
|
sizeof(ab8500_bm_data), 0, "stericsson,ab8500-charger"), |
|
MFD_CELL_OF("ab8500-btemp", NULL, &ab8500_bm_data, |
|
sizeof(ab8500_bm_data), 0, "stericsson,ab8500-btemp"), |
|
MFD_CELL_OF("ab8500-fg", NULL, &ab8500_bm_data, |
|
sizeof(ab8500_bm_data), 0, "stericsson,ab8500-fg"), |
|
MFD_CELL_OF("ab8500-chargalg", NULL, &ab8500_bm_data, |
|
sizeof(ab8500_bm_data), 0, "stericsson,ab8500-chargalg"), |
|
}; |
|
|
|
static const struct mfd_cell ab8500_devs[] = { |
|
#ifdef CONFIG_DEBUG_FS |
|
MFD_CELL_OF("ab8500-debug", |
|
NULL, NULL, 0, 0, "stericsson,ab8500-debug"), |
|
#endif |
|
MFD_CELL_OF("ab8500-sysctrl", |
|
NULL, NULL, 0, 0, "stericsson,ab8500-sysctrl"), |
|
MFD_CELL_OF("ab8500-ext-regulator", |
|
NULL, NULL, 0, 0, "stericsson,ab8500-ext-regulator"), |
|
MFD_CELL_OF("ab8500-regulator", |
|
NULL, NULL, 0, 0, "stericsson,ab8500-regulator"), |
|
MFD_CELL_OF("ab8500-clk", |
|
NULL, NULL, 0, 0, "stericsson,ab8500-clk"), |
|
MFD_CELL_OF("ab8500-gpadc", |
|
NULL, NULL, 0, 0, "stericsson,ab8500-gpadc"), |
|
MFD_CELL_OF("ab8500-rtc", |
|
NULL, NULL, 0, 0, "stericsson,ab8500-rtc"), |
|
MFD_CELL_OF("ab8500-acc-det", |
|
NULL, NULL, 0, 0, "stericsson,ab8500-acc-det"), |
|
MFD_CELL_OF("ab8500-poweron-key", |
|
NULL, NULL, 0, 0, "stericsson,ab8500-poweron-key"), |
|
MFD_CELL_OF("ab8500-pwm", |
|
NULL, NULL, 0, 1, "stericsson,ab8500-pwm"), |
|
MFD_CELL_OF("ab8500-pwm", |
|
NULL, NULL, 0, 2, "stericsson,ab8500-pwm"), |
|
MFD_CELL_OF("ab8500-pwm", |
|
NULL, NULL, 0, 3, "stericsson,ab8500-pwm"), |
|
MFD_CELL_OF("ab8500-denc", |
|
NULL, NULL, 0, 0, "stericsson,ab8500-denc"), |
|
MFD_CELL_OF("pinctrl-ab8500", |
|
NULL, NULL, 0, 0, "stericsson,ab8500-gpio"), |
|
MFD_CELL_OF("abx500-temp", |
|
NULL, NULL, 0, 0, "stericsson,abx500-temp"), |
|
MFD_CELL_OF("ab8500-usb", |
|
NULL, NULL, 0, 0, "stericsson,ab8500-usb"), |
|
MFD_CELL_OF("ab8500-codec", |
|
NULL, NULL, 0, 0, "stericsson,ab8500-codec"), |
|
}; |
|
|
|
static const struct mfd_cell ab9540_devs[] = { |
|
#ifdef CONFIG_DEBUG_FS |
|
{ |
|
.name = "ab8500-debug", |
|
}, |
|
#endif |
|
{ |
|
.name = "ab8500-sysctrl", |
|
}, |
|
{ |
|
.name = "ab8500-ext-regulator", |
|
}, |
|
{ |
|
.name = "ab8500-regulator", |
|
}, |
|
{ |
|
.name = "abx500-clk", |
|
.of_compatible = "stericsson,abx500-clk", |
|
}, |
|
{ |
|
.name = "ab8500-gpadc", |
|
.of_compatible = "stericsson,ab8500-gpadc", |
|
}, |
|
{ |
|
.name = "ab8500-rtc", |
|
}, |
|
{ |
|
.name = "ab8500-acc-det", |
|
}, |
|
{ |
|
.name = "ab8500-poweron-key", |
|
}, |
|
{ |
|
.name = "ab8500-pwm", |
|
.id = 1, |
|
}, |
|
{ |
|
.name = "abx500-temp", |
|
}, |
|
{ |
|
.name = "pinctrl-ab9540", |
|
.of_compatible = "stericsson,ab9540-gpio", |
|
}, |
|
{ |
|
.name = "ab9540-usb", |
|
}, |
|
{ |
|
.name = "ab9540-codec", |
|
}, |
|
{ |
|
.name = "ab-iddet", |
|
}, |
|
}; |
|
|
|
/* Device list for ab8505 */ |
|
static const struct mfd_cell ab8505_devs[] = { |
|
#ifdef CONFIG_DEBUG_FS |
|
{ |
|
.name = "ab8500-debug", |
|
.of_compatible = "stericsson,ab8500-debug", |
|
}, |
|
#endif |
|
{ |
|
.name = "ab8500-sysctrl", |
|
.of_compatible = "stericsson,ab8500-sysctrl", |
|
}, |
|
{ |
|
.name = "ab8500-regulator", |
|
.of_compatible = "stericsson,ab8505-regulator", |
|
}, |
|
{ |
|
.name = "abx500-clk", |
|
.of_compatible = "stericsson,ab8500-clk", |
|
}, |
|
{ |
|
.name = "ab8500-gpadc", |
|
.of_compatible = "stericsson,ab8500-gpadc", |
|
}, |
|
{ |
|
.name = "ab8500-rtc", |
|
.of_compatible = "stericsson,ab8500-rtc", |
|
}, |
|
{ |
|
.name = "ab8500-acc-det", |
|
.of_compatible = "stericsson,ab8500-acc-det", |
|
}, |
|
{ |
|
.name = "ab8500-poweron-key", |
|
.of_compatible = "stericsson,ab8500-poweron-key", |
|
}, |
|
{ |
|
.name = "ab8500-pwm", |
|
.of_compatible = "stericsson,ab8500-pwm", |
|
.id = 1, |
|
}, |
|
{ |
|
.name = "pinctrl-ab8505", |
|
.of_compatible = "stericsson,ab8505-gpio", |
|
}, |
|
{ |
|
.name = "ab8500-usb", |
|
.of_compatible = "stericsson,ab8500-usb", |
|
}, |
|
{ |
|
.name = "ab8500-codec", |
|
.of_compatible = "stericsson,ab8500-codec", |
|
}, |
|
{ |
|
.name = "ab-iddet", |
|
}, |
|
}; |
|
|
|
static const struct mfd_cell ab8540_devs[] = { |
|
#ifdef CONFIG_DEBUG_FS |
|
{ |
|
.name = "ab8500-debug", |
|
}, |
|
#endif |
|
{ |
|
.name = "ab8500-sysctrl", |
|
}, |
|
{ |
|
.name = "ab8500-ext-regulator", |
|
}, |
|
{ |
|
.name = "ab8500-regulator", |
|
}, |
|
{ |
|
.name = "abx500-clk", |
|
.of_compatible = "stericsson,abx500-clk", |
|
}, |
|
{ |
|
.name = "ab8500-gpadc", |
|
.of_compatible = "stericsson,ab8500-gpadc", |
|
}, |
|
{ |
|
.name = "ab8500-acc-det", |
|
}, |
|
{ |
|
.name = "ab8500-poweron-key", |
|
}, |
|
{ |
|
.name = "ab8500-pwm", |
|
.id = 1, |
|
}, |
|
{ |
|
.name = "abx500-temp", |
|
}, |
|
{ |
|
.name = "pinctrl-ab8540", |
|
}, |
|
{ |
|
.name = "ab8540-usb", |
|
}, |
|
{ |
|
.name = "ab8540-codec", |
|
}, |
|
{ |
|
.name = "ab-iddet", |
|
}, |
|
}; |
|
|
|
static const struct mfd_cell ab8540_cut1_devs[] = { |
|
{ |
|
.name = "ab8500-rtc", |
|
.of_compatible = "stericsson,ab8500-rtc", |
|
}, |
|
}; |
|
|
|
static const struct mfd_cell ab8540_cut2_devs[] = { |
|
{ |
|
.name = "ab8540-rtc", |
|
.of_compatible = "stericsson,ab8540-rtc", |
|
}, |
|
}; |
|
|
|
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); |
|
} |
|
|
|
/* use mask and set to override the register turn_on_stat value */ |
|
void ab8500_override_turn_on_stat(u8 mask, u8 set) |
|
{ |
|
spin_lock(&on_stat_lock); |
|
turn_on_stat_mask = mask; |
|
turn_on_stat_set = set; |
|
spin_unlock(&on_stat_lock); |
|
} |
|
|
|
/* |
|
* 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; |
|
|
|
/* |
|
* In L9540, turn_on_status register is not updated correctly if |
|
* the device is rebooted with AC/USB charger connected. Due to |
|
* this, the device boots android instead of entering into charge |
|
* only mode. Read the AC/USB status register to detect the charger |
|
* presence and update the turn on status manually. |
|
*/ |
|
if (is_ab9540(ab8500)) { |
|
spin_lock(&on_stat_lock); |
|
value = (value & turn_on_stat_mask) | turn_on_stat_set; |
|
spin_unlock(&on_stat_lock); |
|
} |
|
|
|
return sprintf(buf, "%#x\n", value); |
|
} |
|
|
|
static ssize_t show_turn_on_status_2(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, |
|
AB8505_TURN_ON_STATUS_2, &value); |
|
if (ret < 0) |
|
return ret; |
|
return sprintf(buf, "%#x\n", (value & 0x1)); |
|
} |
|
|
|
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(turn_on_status_2, S_IRUGO, show_turn_on_status_2, 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 *ab8505_sysfs_entries[] = { |
|
&dev_attr_turn_on_status_2.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 const struct attribute_group ab8500_attr_group = { |
|
.attrs = ab8500_sysfs_entries, |
|
}; |
|
|
|
static const struct attribute_group ab8505_attr_group = { |
|
.attrs = ab8505_sysfs_entries, |
|
}; |
|
|
|
static const struct attribute_group ab9540_attr_group = { |
|
.attrs = ab9540_sysfs_entries, |
|
}; |
|
|
|
static int ab8500_probe(struct platform_device *pdev) |
|
{ |
|
static const char * const 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"}; |
|
static const char * const turn_on_status[] = { |
|
"Battery rising (Vbat)", |
|
"Power On Key 1 dbF", |
|
"Power On Key 2 dbF", |
|
"RTC Alarm", |
|
"Main Charger Detect", |
|
"Vbus Detect (USB)", |
|
"USB ID Detect", |
|
"UART Factory Mode Detect"}; |
|
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 = devm_kzalloc(&pdev->dev, sizeof(*ab8500), GFP_KERNEL); |
|
if (!ab8500) |
|
return -ENOMEM; |
|
|
|
ab8500->dev = &pdev->dev; |
|
|
|
resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
|
if (!resource) { |
|
dev_err(&pdev->dev, "no IRQ resource\n"); |
|
return -ENODEV; |
|
} |
|
|
|
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) { |
|
dev_err(&pdev->dev, "could not probe HW\n"); |
|
return ret; |
|
} |
|
|
|
ab8500->version = value; |
|
} |
|
|
|
ret = get_register_interruptible(ab8500, AB8500_MISC, |
|
AB8500_REV_REG, &value); |
|
if (ret < 0) |
|
return ret; |
|
|
|
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 AB8540 */ |
|
if (is_ab8540(ab8500)) { |
|
ab8500->mask_size = AB8540_NUM_IRQ_REGS; |
|
ab8500->irq_reg_offset = ab8540_irq_regoffset; |
|
ab8500->it_latchhier_num = AB8540_IT_LATCHHIER_NUM; |
|
} /* Configure AB8500 or AB9540 IRQ */ |
|
else if (is_ab9540(ab8500) || is_ab8505(ab8500)) { |
|
ab8500->mask_size = AB9540_NUM_IRQ_REGS; |
|
ab8500->irq_reg_offset = ab9540_irq_regoffset; |
|
ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM; |
|
} else { |
|
ab8500->mask_size = AB8500_NUM_IRQ_REGS; |
|
ab8500->irq_reg_offset = ab8500_irq_regoffset; |
|
ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM; |
|
} |
|
ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size, |
|
GFP_KERNEL); |
|
if (!ab8500->mask) |
|
return -ENOMEM; |
|
ab8500->oldmask = devm_kzalloc(&pdev->dev, ab8500->mask_size, |
|
GFP_KERNEL); |
|
if (!ab8500->oldmask) |
|
return -ENOMEM; |
|
|
|
/* |
|
* 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) |
|
pr_cont(" \"%s\"", switch_off_status[i]); |
|
value = value >> 1; |
|
|
|
} |
|
pr_cont("\n"); |
|
} else { |
|
pr_cont(" None\n"); |
|
} |
|
ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK, |
|
AB8500_TURN_ON_STATUS, &value); |
|
if (ret < 0) |
|
return ret; |
|
dev_info(ab8500->dev, "turn on reason(s) (%#x): ", value); |
|
|
|
if (value) { |
|
for (i = 0; i < ARRAY_SIZE(turn_on_status); i++) { |
|
if (value & 1) |
|
pr_cont("\"%s\" ", turn_on_status[i]); |
|
value = value >> 1; |
|
} |
|
pr_cont("\n"); |
|
} else { |
|
pr_cont("None\n"); |
|
} |
|
|
|
if (is_ab9540(ab8500)) { |
|
ret = get_register_interruptible(ab8500, AB8500_CHARGER, |
|
AB8500_CH_USBCH_STAT1_REG, &value); |
|
if (ret < 0) |
|
return ret; |
|
if ((value & VBUS_DET_DBNC1) && (value & VBUS_DET_DBNC100)) |
|
ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON, |
|
AB8500_VBUS_DET); |
|
} |
|
|
|
/* 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; |
|
|
|
if (ab8500->irq_reg_offset[i] < 0) |
|
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) |
|
return ret; |
|
|
|
for (i = 0; i < ab8500->mask_size; i++) |
|
ab8500->mask[i] = ab8500->oldmask[i] = 0xff; |
|
|
|
ret = ab8500_irq_init(ab8500, np); |
|
if (ret) |
|
return ret; |
|
|
|
ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL, |
|
ab8500_hierarchical_irq, |
|
IRQF_ONESHOT | IRQF_NO_SUSPEND, |
|
"ab8500", ab8500); |
|
if (ret) |
|
return ret; |
|
|
|
if (is_ab9540(ab8500)) |
|
ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs, |
|
ARRAY_SIZE(ab9540_devs), NULL, |
|
0, ab8500->domain); |
|
else if (is_ab8540(ab8500)) { |
|
ret = mfd_add_devices(ab8500->dev, 0, ab8540_devs, |
|
ARRAY_SIZE(ab8540_devs), NULL, |
|
0, ab8500->domain); |
|
if (ret) |
|
return ret; |
|
|
|
if (is_ab8540_1p2_or_earlier(ab8500)) |
|
ret = mfd_add_devices(ab8500->dev, 0, ab8540_cut1_devs, |
|
ARRAY_SIZE(ab8540_cut1_devs), NULL, |
|
0, ab8500->domain); |
|
else /* ab8540 >= cut2 */ |
|
ret = mfd_add_devices(ab8500->dev, 0, ab8540_cut2_devs, |
|
ARRAY_SIZE(ab8540_cut2_devs), NULL, |
|
0, ab8500->domain); |
|
} else if (is_ab8505(ab8500)) |
|
ret = mfd_add_devices(ab8500->dev, 0, ab8505_devs, |
|
ARRAY_SIZE(ab8505_devs), NULL, |
|
0, ab8500->domain); |
|
else |
|
ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs, |
|
ARRAY_SIZE(ab8500_devs), NULL, |
|
0, ab8500->domain); |
|
if (ret) |
|
return ret; |
|
|
|
if (!no_bm) { |
|
/* Add battery management devices */ |
|
ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs, |
|
ARRAY_SIZE(ab8500_bm_devs), NULL, |
|
0, ab8500->domain); |
|
if (ret) |
|
dev_err(ab8500->dev, "error adding bm devices\n"); |
|
} |
|
|
|
if (((is_ab8505(ab8500) || is_ab9540(ab8500)) && |
|
ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500)) |
|
ret = sysfs_create_group(&ab8500->dev->kobj, |
|
&ab9540_attr_group); |
|
else |
|
ret = sysfs_create_group(&ab8500->dev->kobj, |
|
&ab8500_attr_group); |
|
|
|
if ((is_ab8505(ab8500) || is_ab9540(ab8500)) && |
|
ab8500->chip_id >= AB8500_CUT2P0) |
|
ret = sysfs_create_group(&ab8500->dev->kobj, |
|
&ab8505_attr_group); |
|
|
|
if (ret) |
|
dev_err(ab8500->dev, "error creating sysfs entries\n"); |
|
|
|
return ret; |
|
} |
|
|
|
static const struct platform_device_id ab8500_id[] = { |
|
{ "ab8500-core", AB8500_VERSION_AB8500 }, |
|
{ "ab8505-core", AB8500_VERSION_AB8505 }, |
|
{ "ab9540-i2c", AB8500_VERSION_AB9540 }, |
|
{ "ab8540-i2c", AB8500_VERSION_AB8540 }, |
|
{ } |
|
}; |
|
|
|
static struct platform_driver ab8500_core_driver = { |
|
.driver = { |
|
.name = "ab8500-core", |
|
.suppress_bind_attrs = true, |
|
}, |
|
.probe = ab8500_probe, |
|
.id_table = ab8500_id, |
|
}; |
|
|
|
static int __init ab8500_core_init(void) |
|
{ |
|
return platform_driver_register(&ab8500_core_driver); |
|
} |
|
core_initcall(ab8500_core_init);
|
|
|