| /* |
| * Copyright (C) ST-Ericsson SA 2010 |
| * |
| * License Terms: GNU General Public License v2 |
| * Author: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> |
| * Author: Rabin Vincent <rabin.vincent@stericsson.com> |
| * Author: Mattias Wallin <mattias.wallin@stericsson.com> |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/slab.h> |
| #include <linux/init.h> |
| #include <linux/irq.h> |
| #include <linux/irqdomain.h> |
| #include <linux/delay.h> |
| #include <linux/interrupt.h> |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| #include <linux/mfd/core.h> |
| #include <linux/mfd/abx500.h> |
| #include <linux/mfd/abx500/ab8500.h> |
| #include <linux/mfd/dbx500-prcmu.h> |
| #include <linux/regulator/ab8500.h> |
| #include <linux/of.h> |
| #include <linux/of_device.h> |
| |
| /* |
| * Interrupt register offsets |
| * Bank : 0x0E |
| */ |
| #define AB8500_IT_SOURCE1_REG 0x00 |
| #define AB8500_IT_SOURCE2_REG 0x01 |
| #define AB8500_IT_SOURCE3_REG 0x02 |
| #define AB8500_IT_SOURCE4_REG 0x03 |
| #define AB8500_IT_SOURCE5_REG 0x04 |
| #define AB8500_IT_SOURCE6_REG 0x05 |
| #define AB8500_IT_SOURCE7_REG 0x06 |
| #define AB8500_IT_SOURCE8_REG 0x07 |
| #define AB9540_IT_SOURCE13_REG 0x0C |
| #define AB8500_IT_SOURCE19_REG 0x12 |
| #define AB8500_IT_SOURCE20_REG 0x13 |
| #define AB8500_IT_SOURCE21_REG 0x14 |
| #define AB8500_IT_SOURCE22_REG 0x15 |
| #define AB8500_IT_SOURCE23_REG 0x16 |
| #define AB8500_IT_SOURCE24_REG 0x17 |
| |
| /* |
| * latch registers |
| */ |
| #define AB8500_IT_LATCH1_REG 0x20 |
| #define AB8500_IT_LATCH2_REG 0x21 |
| #define AB8500_IT_LATCH3_REG 0x22 |
| #define AB8500_IT_LATCH4_REG 0x23 |
| #define AB8500_IT_LATCH5_REG 0x24 |
| #define AB8500_IT_LATCH6_REG 0x25 |
| #define AB8500_IT_LATCH7_REG 0x26 |
| #define AB8500_IT_LATCH8_REG 0x27 |
| #define AB8500_IT_LATCH9_REG 0x28 |
| #define AB8500_IT_LATCH10_REG 0x29 |
| #define AB8500_IT_LATCH12_REG 0x2B |
| #define AB9540_IT_LATCH13_REG 0x2C |
| #define AB8500_IT_LATCH19_REG 0x32 |
| #define AB8500_IT_LATCH20_REG 0x33 |
| #define AB8500_IT_LATCH21_REG 0x34 |
| #define AB8500_IT_LATCH22_REG 0x35 |
| #define AB8500_IT_LATCH23_REG 0x36 |
| #define AB8500_IT_LATCH24_REG 0x37 |
| |
| /* |
| * mask registers |
| */ |
| |
| #define AB8500_IT_MASK1_REG 0x40 |
| #define AB8500_IT_MASK2_REG 0x41 |
| #define AB8500_IT_MASK3_REG 0x42 |
| #define AB8500_IT_MASK4_REG 0x43 |
| #define AB8500_IT_MASK5_REG 0x44 |
| #define AB8500_IT_MASK6_REG 0x45 |
| #define AB8500_IT_MASK7_REG 0x46 |
| #define AB8500_IT_MASK8_REG 0x47 |
| #define AB8500_IT_MASK9_REG 0x48 |
| #define AB8500_IT_MASK10_REG 0x49 |
| #define AB8500_IT_MASK11_REG 0x4A |
| #define AB8500_IT_MASK12_REG 0x4B |
| #define AB8500_IT_MASK13_REG 0x4C |
| #define AB8500_IT_MASK14_REG 0x4D |
| #define AB8500_IT_MASK15_REG 0x4E |
| #define AB8500_IT_MASK16_REG 0x4F |
| #define AB8500_IT_MASK17_REG 0x50 |
| #define AB8500_IT_MASK18_REG 0x51 |
| #define AB8500_IT_MASK19_REG 0x52 |
| #define AB8500_IT_MASK20_REG 0x53 |
| #define AB8500_IT_MASK21_REG 0x54 |
| #define AB8500_IT_MASK22_REG 0x55 |
| #define AB8500_IT_MASK23_REG 0x56 |
| #define AB8500_IT_MASK24_REG 0x57 |
| |
| /* |
| * latch hierarchy registers |
| */ |
| #define AB8500_IT_LATCHHIER1_REG 0x60 |
| #define AB8500_IT_LATCHHIER2_REG 0x61 |
| #define AB8500_IT_LATCHHIER3_REG 0x62 |
| |
| #define AB8500_IT_LATCHHIER_NUM 3 |
| |
| #define AB8500_REV_REG 0x80 |
| #define AB8500_IC_NAME_REG 0x82 |
| #define AB8500_SWITCH_OFF_STATUS 0x00 |
| |
| #define AB8500_TURN_ON_STATUS 0x00 |
| |
| static bool no_bm; /* No battery management */ |
| module_param(no_bm, bool, S_IRUGO); |
| |
| #define AB9540_MODEM_CTRL2_REG 0x23 |
| #define AB9540_MODEM_CTRL2_SWDBBRSTN_BIT BIT(2) |
| |
| /* |
| * Map interrupt numbers to the LATCH and MASK register offsets, Interrupt |
| * numbers are indexed into this array with (num / 8). The interupts are |
| * defined in linux/mfd/ab8500.h |
| * |
| * This is one off from the register names, i.e. AB8500_IT_MASK1_REG is at |
| * offset 0. |
| */ |
| /* AB8500 support */ |
| static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = { |
| 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, |
| }; |
| |
| /* AB9540 support */ |
| static const int ab9540_irq_regoffset[AB9540_NUM_IRQ_REGS] = { |
| 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24, |
| }; |
| |
| static const char ab8500_version_str[][7] = { |
| [AB8500_VERSION_AB8500] = "AB8500", |
| [AB8500_VERSION_AB8505] = "AB8505", |
| [AB8500_VERSION_AB9540] = "AB9540", |
| [AB8500_VERSION_AB8540] = "AB8540", |
| }; |
| |
| static int ab8500_prcmu_write(struct ab8500 *ab8500, u16 addr, u8 data) |
| { |
| int ret; |
| |
| ret = prcmu_abb_write((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1); |
| if (ret < 0) |
| dev_err(ab8500->dev, "prcmu i2c error %d\n", ret); |
| return ret; |
| } |
| |
| static int ab8500_prcmu_write_masked(struct ab8500 *ab8500, u16 addr, u8 mask, |
| u8 data) |
| { |
| int ret; |
| |
| ret = prcmu_abb_write_masked((u8)(addr >> 8), (u8)(addr & 0xFF), &data, |
| &mask, 1); |
| if (ret < 0) |
| dev_err(ab8500->dev, "prcmu i2c error %d\n", ret); |
| return ret; |
| } |
| |
| static int ab8500_prcmu_read(struct ab8500 *ab8500, u16 addr) |
| { |
| int ret; |
| u8 data; |
| |
| ret = prcmu_abb_read((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1); |
| if (ret < 0) { |
| dev_err(ab8500->dev, "prcmu i2c error %d\n", ret); |
| return ret; |
| } |
| return (int)data; |
| } |
| |
| static int ab8500_get_chip_id(struct device *dev) |
| { |
| struct ab8500 *ab8500; |
| |
| if (!dev) |
| return -EINVAL; |
| ab8500 = dev_get_drvdata(dev->parent); |
| return ab8500 ? (int)ab8500->chip_id : -EINVAL; |
| } |
| |
| static int set_register_interruptible(struct ab8500 *ab8500, u8 bank, |
| u8 reg, u8 data) |
| { |
| int ret; |
| /* |
| * Put the u8 bank and u8 register together into a an u16. |
| * The bank on higher 8 bits and register in lower 8 bits. |
| * */ |
| u16 addr = ((u16)bank) << 8 | reg; |
| |
| dev_vdbg(ab8500->dev, "wr: addr %#x <= %#x\n", addr, data); |
| |
| mutex_lock(&ab8500->lock); |
| |
| ret = ab8500->write(ab8500, addr, data); |
| if (ret < 0) |
| dev_err(ab8500->dev, "failed to write reg %#x: %d\n", |
| addr, ret); |
| mutex_unlock(&ab8500->lock); |
| |
| return ret; |
| } |
| |
| static int ab8500_set_register(struct device *dev, u8 bank, |
| u8 reg, u8 value) |
| { |
| int ret; |
| struct ab8500 *ab8500 = dev_get_drvdata(dev->parent); |
| |
| atomic_inc(&ab8500->transfer_ongoing); |
| ret = set_register_interruptible(ab8500, bank, reg, value); |
| atomic_dec(&ab8500->transfer_ongoing); |
| return ret; |
| } |
| |
| static int get_register_interruptible(struct ab8500 *ab8500, u8 bank, |
| u8 reg, u8 *value) |
| { |
| int ret; |
| /* put the u8 bank and u8 reg together into a an u16. |
| * bank on higher 8 bits and reg in lower */ |
| u16 addr = ((u16)bank) << 8 | reg; |
| |
| mutex_lock(&ab8500->lock); |
| |
| ret = ab8500->read(ab8500, addr); |
| if (ret < 0) |
| dev_err(ab8500->dev, "failed to read reg %#x: %d\n", |
| addr, ret); |
| else |
| *value = ret; |
| |
| mutex_unlock(&ab8500->lock); |
| dev_vdbg(ab8500->dev, "rd: addr %#x => data %#x\n", addr, ret); |
| |
| return ret; |
| } |
| |
| static int ab8500_get_register(struct device *dev, u8 bank, |
| u8 reg, u8 *value) |
| { |
| int ret; |
| struct ab8500 *ab8500 = dev_get_drvdata(dev->parent); |
| |
| atomic_inc(&ab8500->transfer_ongoing); |
| ret = get_register_interruptible(ab8500, bank, reg, value); |
| atomic_dec(&ab8500->transfer_ongoing); |
| return ret; |
| } |
| |
| static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank, |
| u8 reg, u8 bitmask, u8 bitvalues) |
| { |
| int ret; |
| /* put the u8 bank and u8 reg together into a an u16. |
| * bank on higher 8 bits and reg in lower */ |
| u16 addr = ((u16)bank) << 8 | reg; |
| |
| mutex_lock(&ab8500->lock); |
| |
| if (ab8500->write_masked == NULL) { |
| u8 data; |
| |
| ret = ab8500->read(ab8500, addr); |
| if (ret < 0) { |
| dev_err(ab8500->dev, "failed to read reg %#x: %d\n", |
| addr, ret); |
| goto out; |
| } |
| |
| data = (u8)ret; |
| data = (~bitmask & data) | (bitmask & bitvalues); |
| |
| ret = ab8500->write(ab8500, addr, data); |
| if (ret < 0) |
| dev_err(ab8500->dev, "failed to write reg %#x: %d\n", |
| addr, ret); |
| |
| dev_vdbg(ab8500->dev, "mask: addr %#x => data %#x\n", addr, |
| data); |
| goto out; |
| } |
| ret = ab8500->write_masked(ab8500, addr, bitmask, bitvalues); |
| if (ret < 0) |
| dev_err(ab8500->dev, "failed to modify reg %#x: %d\n", addr, |
| ret); |
| out: |
| mutex_unlock(&ab8500->lock); |
| return ret; |
| } |
| |
| static int ab8500_mask_and_set_register(struct device *dev, |
| u8 bank, u8 reg, u8 bitmask, u8 bitvalues) |
| { |
| int ret; |
| struct ab8500 *ab8500 = dev_get_drvdata(dev->parent); |
| |
| atomic_inc(&ab8500->transfer_ongoing); |
| ret= mask_and_set_register_interruptible(ab8500, bank, reg, |
| bitmask, bitvalues); |
| atomic_dec(&ab8500->transfer_ongoing); |
| return ret; |
| } |
| |
| static struct abx500_ops ab8500_ops = { |
| .get_chip_id = ab8500_get_chip_id, |
| .get_register = ab8500_get_register, |
| .set_register = ab8500_set_register, |
| .get_register_page = NULL, |
| .set_register_page = NULL, |
| .mask_and_set_register = ab8500_mask_and_set_register, |
| .event_registers_startup_state_get = NULL, |
| .startup_irq_enabled = NULL, |
| }; |
| |
| static void ab8500_irq_lock(struct irq_data *data) |
| { |
| struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data); |
| |
| mutex_lock(&ab8500->irq_lock); |
| atomic_inc(&ab8500->transfer_ongoing); |
| } |
| |
| static void ab8500_irq_sync_unlock(struct irq_data *data) |
| { |
| struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data); |
| int i; |
| |
| for (i = 0; i < ab8500->mask_size; i++) { |
| u8 old = ab8500->oldmask[i]; |
| u8 new = ab8500->mask[i]; |
| int reg; |
| |
| if (new == old) |
| continue; |
| |
| /* |
| * 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; |
| |
| ab8500->oldmask[i] = new; |
| |
| reg = AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i]; |
| set_register_interruptible(ab8500, AB8500_INTERRUPT, reg, new); |
| } |
| atomic_dec(&ab8500->transfer_ongoing); |
| mutex_unlock(&ab8500->irq_lock); |
| } |
| |
| static void ab8500_irq_mask(struct irq_data *data) |
| { |
| struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data); |
| int offset = data->hwirq; |
| int index = offset / 8; |
| int mask = 1 << (offset % 8); |
| |
| ab8500->mask[index] |= mask; |
| } |
| |
| static void ab8500_irq_unmask(struct irq_data *data) |
| { |
| struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data); |
| int offset = data->hwirq; |
| int index = offset / 8; |
| int mask = 1 << (offset % 8); |
| |
| ab8500->mask[index] &= ~mask; |
| } |
| |
| static struct irq_chip ab8500_irq_chip = { |
| .name = "ab8500", |
| .irq_bus_lock = ab8500_irq_lock, |
| .irq_bus_sync_unlock = ab8500_irq_sync_unlock, |
| .irq_mask = ab8500_irq_mask, |
| .irq_disable = ab8500_irq_mask, |
| .irq_unmask = ab8500_irq_unmask, |
| }; |
| |
| static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500, |
| int latch_offset, u8 latch_val) |
| { |
| int int_bit = __ffs(latch_val); |
| int line, i; |
| |
| do { |
| int_bit = __ffs(latch_val); |
| |
| for (i = 0; i < ab8500->mask_size; i++) |
| if (ab8500->irq_reg_offset[i] == latch_offset) |
| break; |
| |
| if (i >= ab8500->mask_size) { |
| dev_err(ab8500->dev, "Register offset 0x%2x not declared\n", |
| latch_offset); |
| return -ENXIO; |
| } |
| |
| line = (i << 3) + int_bit; |
| latch_val &= ~(1 << int_bit); |
| |
| handle_nested_irq(ab8500->irq_base + line); |
| } while (latch_val); |
| |
| return 0; |
| } |
| |
| static int ab8500_handle_hierarchical_latch(struct ab8500 *ab8500, |
| int hier_offset, u8 hier_val) |
| { |
| int latch_bit, status; |
| u8 latch_offset, latch_val; |
| |
| do { |
| latch_bit = __ffs(hier_val); |
| latch_offset = (hier_offset << 3) + latch_bit; |
| |
| /* Fix inconsistent ITFromLatch25 bit mapping... */ |
| if (unlikely(latch_offset == 17)) |
| latch_offset = 24; |
| |
| 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; |
| } |
| |
| /** |
| * ab8500_irq_get_virq(): Map an interrupt on a chip to a virtual IRQ |
| * |
| * @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 ->irq_base is zero this will give a linear mapping */ |
| ab8500->domain = irq_domain_add_simple(NULL, |
| num_irqs, ab8500->irq_base, |
| &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 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 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 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 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 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 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 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 ab8500_chargalg_resources[] = {}; |
| |
| #ifdef CONFIG_DEBUG_FS |
| static struct resource 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 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 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 ab8500_temp_resources[] = { |
| { |
| .name = "AB8500_TEMP_WARM", |
| .start = AB8500_INT_TEMP_WARM, |
| .end = AB8500_INT_TEMP_WARM, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct mfd_cell 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 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 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 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 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 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 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 = 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"); |