| /* NXP PCF50633 Power Management Unit (PMU) driver |
| * |
| * (C) 2006-2008 by Openmoko, Inc. |
| * Author: Harald Welte <laforge@openmoko.org> |
| * Balaji Rao <balajirrao@openmoko.org> |
| * All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2 of the License, or (at your |
| * option) any later version. |
| * |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/device.h> |
| #include <linux/sysfs.h> |
| #include <linux/device.h> |
| #include <linux/module.h> |
| #include <linux/types.h> |
| #include <linux/interrupt.h> |
| #include <linux/workqueue.h> |
| #include <linux/platform_device.h> |
| #include <linux/i2c.h> |
| #include <linux/irq.h> |
| |
| #include <linux/mfd/pcf50633/core.h> |
| |
| /* Two MBCS registers used during cold start */ |
| #define PCF50633_REG_MBCS1 0x4b |
| #define PCF50633_REG_MBCS2 0x4c |
| #define PCF50633_MBCS1_USBPRES 0x01 |
| #define PCF50633_MBCS1_ADAPTPRES 0x01 |
| |
| static int __pcf50633_read(struct pcf50633 *pcf, u8 reg, int num, u8 *data) |
| { |
| int ret; |
| |
| ret = i2c_smbus_read_i2c_block_data(pcf->i2c_client, reg, |
| num, data); |
| if (ret < 0) |
| dev_err(pcf->dev, "Error reading %d regs at %d\n", num, reg); |
| |
| return ret; |
| } |
| |
| static int __pcf50633_write(struct pcf50633 *pcf, u8 reg, int num, u8 *data) |
| { |
| int ret; |
| |
| ret = i2c_smbus_write_i2c_block_data(pcf->i2c_client, reg, |
| num, data); |
| if (ret < 0) |
| dev_err(pcf->dev, "Error writing %d regs at %d\n", num, reg); |
| |
| return ret; |
| |
| } |
| |
| /* Read a block of upto 32 regs */ |
| int pcf50633_read_block(struct pcf50633 *pcf, u8 reg, |
| int nr_regs, u8 *data) |
| { |
| int ret; |
| |
| mutex_lock(&pcf->lock); |
| ret = __pcf50633_read(pcf, reg, nr_regs, data); |
| mutex_unlock(&pcf->lock); |
| |
| return ret; |
| } |
| EXPORT_SYMBOL_GPL(pcf50633_read_block); |
| |
| /* Write a block of upto 32 regs */ |
| int pcf50633_write_block(struct pcf50633 *pcf , u8 reg, |
| int nr_regs, u8 *data) |
| { |
| int ret; |
| |
| mutex_lock(&pcf->lock); |
| ret = __pcf50633_write(pcf, reg, nr_regs, data); |
| mutex_unlock(&pcf->lock); |
| |
| return ret; |
| } |
| EXPORT_SYMBOL_GPL(pcf50633_write_block); |
| |
| u8 pcf50633_reg_read(struct pcf50633 *pcf, u8 reg) |
| { |
| u8 val; |
| |
| mutex_lock(&pcf->lock); |
| __pcf50633_read(pcf, reg, 1, &val); |
| mutex_unlock(&pcf->lock); |
| |
| return val; |
| } |
| EXPORT_SYMBOL_GPL(pcf50633_reg_read); |
| |
| int pcf50633_reg_write(struct pcf50633 *pcf, u8 reg, u8 val) |
| { |
| int ret; |
| |
| mutex_lock(&pcf->lock); |
| ret = __pcf50633_write(pcf, reg, 1, &val); |
| mutex_unlock(&pcf->lock); |
| |
| return ret; |
| } |
| EXPORT_SYMBOL_GPL(pcf50633_reg_write); |
| |
| int pcf50633_reg_set_bit_mask(struct pcf50633 *pcf, u8 reg, u8 mask, u8 val) |
| { |
| int ret; |
| u8 tmp; |
| |
| val &= mask; |
| |
| mutex_lock(&pcf->lock); |
| ret = __pcf50633_read(pcf, reg, 1, &tmp); |
| if (ret < 0) |
| goto out; |
| |
| tmp &= ~mask; |
| tmp |= val; |
| ret = __pcf50633_write(pcf, reg, 1, &tmp); |
| |
| out: |
| mutex_unlock(&pcf->lock); |
| |
| return ret; |
| } |
| EXPORT_SYMBOL_GPL(pcf50633_reg_set_bit_mask); |
| |
| int pcf50633_reg_clear_bits(struct pcf50633 *pcf, u8 reg, u8 val) |
| { |
| int ret; |
| u8 tmp; |
| |
| mutex_lock(&pcf->lock); |
| ret = __pcf50633_read(pcf, reg, 1, &tmp); |
| if (ret < 0) |
| goto out; |
| |
| tmp &= ~val; |
| ret = __pcf50633_write(pcf, reg, 1, &tmp); |
| |
| out: |
| mutex_unlock(&pcf->lock); |
| |
| return ret; |
| } |
| EXPORT_SYMBOL_GPL(pcf50633_reg_clear_bits); |
| |
| /* sysfs attributes */ |
| static ssize_t show_dump_regs(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct pcf50633 *pcf = dev_get_drvdata(dev); |
| u8 dump[16]; |
| int n, n1, idx = 0; |
| char *buf1 = buf; |
| static u8 address_no_read[] = { /* must be ascending */ |
| PCF50633_REG_INT1, |
| PCF50633_REG_INT2, |
| PCF50633_REG_INT3, |
| PCF50633_REG_INT4, |
| PCF50633_REG_INT5, |
| 0 /* terminator */ |
| }; |
| |
| for (n = 0; n < 256; n += sizeof(dump)) { |
| for (n1 = 0; n1 < sizeof(dump); n1++) |
| if (n == address_no_read[idx]) { |
| idx++; |
| dump[n1] = 0x00; |
| } else |
| dump[n1] = pcf50633_reg_read(pcf, n + n1); |
| |
| hex_dump_to_buffer(dump, sizeof(dump), 16, 1, buf1, 128, 0); |
| buf1 += strlen(buf1); |
| *buf1++ = '\n'; |
| *buf1 = '\0'; |
| } |
| |
| return buf1 - buf; |
| } |
| static DEVICE_ATTR(dump_regs, 0400, show_dump_regs, NULL); |
| |
| static ssize_t show_resume_reason(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct pcf50633 *pcf = dev_get_drvdata(dev); |
| int n; |
| |
| n = sprintf(buf, "%02x%02x%02x%02x%02x\n", |
| pcf->resume_reason[0], |
| pcf->resume_reason[1], |
| pcf->resume_reason[2], |
| pcf->resume_reason[3], |
| pcf->resume_reason[4]); |
| |
| return n; |
| } |
| static DEVICE_ATTR(resume_reason, 0400, show_resume_reason, NULL); |
| |
| static struct attribute *pcf_sysfs_entries[] = { |
| &dev_attr_dump_regs.attr, |
| &dev_attr_resume_reason.attr, |
| NULL, |
| }; |
| |
| static struct attribute_group pcf_attr_group = { |
| .name = NULL, /* put in device directory */ |
| .attrs = pcf_sysfs_entries, |
| }; |
| |
| int pcf50633_register_irq(struct pcf50633 *pcf, int irq, |
| void (*handler) (int, void *), void *data) |
| { |
| if (irq < 0 || irq > PCF50633_NUM_IRQ || !handler) |
| return -EINVAL; |
| |
| if (WARN_ON(pcf->irq_handler[irq].handler)) |
| return -EBUSY; |
| |
| mutex_lock(&pcf->lock); |
| pcf->irq_handler[irq].handler = handler; |
| pcf->irq_handler[irq].data = data; |
| mutex_unlock(&pcf->lock); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL_GPL(pcf50633_register_irq); |
| |
| int pcf50633_free_irq(struct pcf50633 *pcf, int irq) |
| { |
| if (irq < 0 || irq > PCF50633_NUM_IRQ) |
| return -EINVAL; |
| |
| mutex_lock(&pcf->lock); |
| pcf->irq_handler[irq].handler = NULL; |
| mutex_unlock(&pcf->lock); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL_GPL(pcf50633_free_irq); |
| |
| static int __pcf50633_irq_mask_set(struct pcf50633 *pcf, int irq, u8 mask) |
| { |
| u8 reg, bits, tmp; |
| int ret = 0, idx; |
| |
| idx = irq >> 3; |
| reg = PCF50633_REG_INT1M + idx; |
| bits = 1 << (irq & 0x07); |
| |
| mutex_lock(&pcf->lock); |
| |
| if (mask) { |
| ret = __pcf50633_read(pcf, reg, 1, &tmp); |
| if (ret < 0) |
| goto out; |
| |
| tmp |= bits; |
| |
| ret = __pcf50633_write(pcf, reg, 1, &tmp); |
| if (ret < 0) |
| goto out; |
| |
| pcf->mask_regs[idx] &= ~bits; |
| pcf->mask_regs[idx] |= bits; |
| } else { |
| ret = __pcf50633_read(pcf, reg, 1, &tmp); |
| if (ret < 0) |
| goto out; |
| |
| tmp &= ~bits; |
| |
| ret = __pcf50633_write(pcf, reg, 1, &tmp); |
| if (ret < 0) |
| goto out; |
| |
| pcf->mask_regs[idx] &= ~bits; |
| } |
| out: |
| mutex_unlock(&pcf->lock); |
| |
| return ret; |
| } |
| |
| int pcf50633_irq_mask(struct pcf50633 *pcf, int irq) |
| { |
| dev_info(pcf->dev, "Masking IRQ %d\n", irq); |
| |
| return __pcf50633_irq_mask_set(pcf, irq, 1); |
| } |
| EXPORT_SYMBOL_GPL(pcf50633_irq_mask); |
| |
| int pcf50633_irq_unmask(struct pcf50633 *pcf, int irq) |
| { |
| dev_info(pcf->dev, "Unmasking IRQ %d\n", irq); |
| |
| return __pcf50633_irq_mask_set(pcf, irq, 0); |
| } |
| EXPORT_SYMBOL_GPL(pcf50633_irq_unmask); |
| |
| int pcf50633_irq_mask_get(struct pcf50633 *pcf, int irq) |
| { |
| u8 reg, bits; |
| |
| reg = irq >> 3; |
| bits = 1 << (irq & 0x07); |
| |
| return pcf->mask_regs[reg] & bits; |
| } |
| EXPORT_SYMBOL_GPL(pcf50633_irq_mask_get); |
| |
| static void pcf50633_irq_call_handler(struct pcf50633 *pcf, int irq) |
| { |
| if (pcf->irq_handler[irq].handler) |
| pcf->irq_handler[irq].handler(irq, pcf->irq_handler[irq].data); |
| } |
| |
| /* Maximum amount of time ONKEY is held before emergency action is taken */ |
| #define PCF50633_ONKEY1S_TIMEOUT 8 |
| |
| static void pcf50633_irq_worker(struct work_struct *work) |
| { |
| struct pcf50633 *pcf; |
| int ret, i, j; |
| u8 pcf_int[5], chgstat; |
| |
| pcf = container_of(work, struct pcf50633, irq_work); |
| |
| /* Read the 5 INT regs in one transaction */ |
| ret = pcf50633_read_block(pcf, PCF50633_REG_INT1, |
| ARRAY_SIZE(pcf_int), pcf_int); |
| if (ret != ARRAY_SIZE(pcf_int)) { |
| dev_err(pcf->dev, "Error reading INT registers\n"); |
| |
| /* |
| * If this doesn't ACK the interrupt to the chip, we'll be |
| * called once again as we're level triggered. |
| */ |
| goto out; |
| } |
| |
| /* We immediately read the usb and adapter status. We thus make sure |
| * only of USBINS/USBREM IRQ handlers are called */ |
| if (pcf_int[0] & (PCF50633_INT1_USBINS | PCF50633_INT1_USBREM)) { |
| chgstat = pcf50633_reg_read(pcf, PCF50633_REG_MBCS2); |
| if (chgstat & (0x3 << 4)) |
| pcf_int[0] &= ~(1 << PCF50633_INT1_USBREM); |
| else |
| pcf_int[0] &= ~(1 << PCF50633_INT1_USBINS); |
| } |
| |
| /* Make sure only one of ADPINS or ADPREM is set */ |
| if (pcf_int[0] & (PCF50633_INT1_ADPINS | PCF50633_INT1_ADPREM)) { |
| chgstat = pcf50633_reg_read(pcf, PCF50633_REG_MBCS2); |
| if (chgstat & (0x3 << 4)) |
| pcf_int[0] &= ~(1 << PCF50633_INT1_ADPREM); |
| else |
| pcf_int[0] &= ~(1 << PCF50633_INT1_ADPINS); |
| } |
| |
| dev_dbg(pcf->dev, "INT1=0x%02x INT2=0x%02x INT3=0x%02x " |
| "INT4=0x%02x INT5=0x%02x\n", pcf_int[0], |
| pcf_int[1], pcf_int[2], pcf_int[3], pcf_int[4]); |
| |
| /* Some revisions of the chip don't have a 8s standby mode on |
| * ONKEY1S press. We try to manually do it in such cases. */ |
| if ((pcf_int[0] & PCF50633_INT1_SECOND) && pcf->onkey1s_held) { |
| dev_info(pcf->dev, "ONKEY1S held for %d secs\n", |
| pcf->onkey1s_held); |
| if (pcf->onkey1s_held++ == PCF50633_ONKEY1S_TIMEOUT) |
| if (pcf->pdata->force_shutdown) |
| pcf->pdata->force_shutdown(pcf); |
| } |
| |
| if (pcf_int[2] & PCF50633_INT3_ONKEY1S) { |
| dev_info(pcf->dev, "ONKEY1S held\n"); |
| pcf->onkey1s_held = 1 ; |
| |
| /* Unmask IRQ_SECOND */ |
| pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT1M, |
| PCF50633_INT1_SECOND); |
| |
| /* Unmask IRQ_ONKEYR */ |
| pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT2M, |
| PCF50633_INT2_ONKEYR); |
| } |
| |
| if ((pcf_int[1] & PCF50633_INT2_ONKEYR) && pcf->onkey1s_held) { |
| pcf->onkey1s_held = 0; |
| |
| /* Mask SECOND and ONKEYR interrupts */ |
| if (pcf->mask_regs[0] & PCF50633_INT1_SECOND) |
| pcf50633_reg_set_bit_mask(pcf, |
| PCF50633_REG_INT1M, |
| PCF50633_INT1_SECOND, |
| PCF50633_INT1_SECOND); |
| |
| if (pcf->mask_regs[1] & PCF50633_INT2_ONKEYR) |
| pcf50633_reg_set_bit_mask(pcf, |
| PCF50633_REG_INT2M, |
| PCF50633_INT2_ONKEYR, |
| PCF50633_INT2_ONKEYR); |
| } |
| |
| /* Have we just resumed ? */ |
| if (pcf->is_suspended) { |
| pcf->is_suspended = 0; |
| |
| /* Set the resume reason filtering out non resumers */ |
| for (i = 0; i < ARRAY_SIZE(pcf_int); i++) |
| pcf->resume_reason[i] = pcf_int[i] & |
| pcf->pdata->resumers[i]; |
| |
| /* Make sure we don't pass on any ONKEY events to |
| * userspace now */ |
| pcf_int[1] &= ~(PCF50633_INT2_ONKEYR | PCF50633_INT2_ONKEYF); |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(pcf_int); i++) { |
| /* Unset masked interrupts */ |
| pcf_int[i] &= ~pcf->mask_regs[i]; |
| |
| for (j = 0; j < 8 ; j++) |
| if (pcf_int[i] & (1 << j)) |
| pcf50633_irq_call_handler(pcf, (i * 8) + j); |
| } |
| |
| out: |
| put_device(pcf->dev); |
| enable_irq(pcf->irq); |
| } |
| |
| static irqreturn_t pcf50633_irq(int irq, void *data) |
| { |
| struct pcf50633 *pcf = data; |
| |
| dev_dbg(pcf->dev, "pcf50633_irq\n"); |
| |
| get_device(pcf->dev); |
| disable_irq(pcf->irq); |
| schedule_work(&pcf->irq_work); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static void |
| pcf50633_client_dev_register(struct pcf50633 *pcf, const char *name, |
| struct platform_device **pdev) |
| { |
| struct pcf50633_subdev_pdata *subdev_pdata; |
| int ret; |
| |
| *pdev = platform_device_alloc(name, -1); |
| if (!*pdev) { |
| dev_err(pcf->dev, "Falied to allocate %s\n", name); |
| return; |
| } |
| |
| subdev_pdata = kmalloc(sizeof(*subdev_pdata), GFP_KERNEL); |
| if (!subdev_pdata) { |
| dev_err(pcf->dev, "Error allocating subdev pdata\n"); |
| platform_device_put(*pdev); |
| } |
| |
| subdev_pdata->pcf = pcf; |
| platform_device_add_data(*pdev, subdev_pdata, sizeof(*subdev_pdata)); |
| |
| (*pdev)->dev.parent = pcf->dev; |
| |
| ret = platform_device_add(*pdev); |
| if (ret) { |
| dev_err(pcf->dev, "Failed to register %s: %d\n", name, ret); |
| platform_device_put(*pdev); |
| *pdev = NULL; |
| } |
| } |
| |
| #ifdef CONFIG_PM |
| static int pcf50633_suspend(struct device *dev, pm_message_t state) |
| { |
| struct pcf50633 *pcf; |
| int ret = 0, i; |
| u8 res[5]; |
| |
| pcf = dev_get_drvdata(dev); |
| |
| /* Make sure our interrupt handlers are not called |
| * henceforth */ |
| disable_irq(pcf->irq); |
| |
| /* Make sure that any running IRQ worker has quit */ |
| cancel_work_sync(&pcf->irq_work); |
| |
| /* Save the masks */ |
| ret = pcf50633_read_block(pcf, PCF50633_REG_INT1M, |
| ARRAY_SIZE(pcf->suspend_irq_masks), |
| pcf->suspend_irq_masks); |
| if (ret < 0) { |
| dev_err(pcf->dev, "error saving irq masks\n"); |
| goto out; |
| } |
| |
| /* Write wakeup irq masks */ |
| for (i = 0; i < ARRAY_SIZE(res); i++) |
| res[i] = ~pcf->pdata->resumers[i]; |
| |
| ret = pcf50633_write_block(pcf, PCF50633_REG_INT1M, |
| ARRAY_SIZE(res), &res[0]); |
| if (ret < 0) { |
| dev_err(pcf->dev, "error writing wakeup irq masks\n"); |
| goto out; |
| } |
| |
| pcf->is_suspended = 1; |
| |
| out: |
| return ret; |
| } |
| |
| static int pcf50633_resume(struct device *dev) |
| { |
| struct pcf50633 *pcf; |
| int ret; |
| |
| pcf = dev_get_drvdata(dev); |
| |
| /* Write the saved mask registers */ |
| ret = pcf50633_write_block(pcf, PCF50633_REG_INT1M, |
| ARRAY_SIZE(pcf->suspend_irq_masks), |
| pcf->suspend_irq_masks); |
| if (ret < 0) |
| dev_err(pcf->dev, "Error restoring saved suspend masks\n"); |
| |
| /* Restore regulators' state */ |
| |
| |
| get_device(pcf->dev); |
| |
| /* |
| * Clear any pending interrupts and set resume reason if any. |
| * This will leave with enable_irq() |
| */ |
| pcf50633_irq_worker(&pcf->irq_work); |
| |
| return 0; |
| } |
| #else |
| #define pcf50633_suspend NULL |
| #define pcf50633_resume NULL |
| #endif |
| |
| static int __devinit pcf50633_probe(struct i2c_client *client, |
| const struct i2c_device_id *ids) |
| { |
| struct pcf50633 *pcf; |
| struct pcf50633_platform_data *pdata = client->dev.platform_data; |
| int i, ret = 0; |
| int version, variant; |
| |
| pcf = kzalloc(sizeof(*pcf), GFP_KERNEL); |
| if (!pcf) |
| return -ENOMEM; |
| |
| pcf->pdata = pdata; |
| |
| mutex_init(&pcf->lock); |
| |
| i2c_set_clientdata(client, pcf); |
| pcf->dev = &client->dev; |
| pcf->i2c_client = client; |
| pcf->irq = client->irq; |
| |
| INIT_WORK(&pcf->irq_work, pcf50633_irq_worker); |
| |
| version = pcf50633_reg_read(pcf, 0); |
| variant = pcf50633_reg_read(pcf, 1); |
| if (version < 0 || variant < 0) { |
| dev_err(pcf->dev, "Unable to probe pcf50633\n"); |
| ret = -ENODEV; |
| goto err; |
| } |
| |
| dev_info(pcf->dev, "Probed device version %d variant %d\n", |
| version, variant); |
| |
| /* Enable all interrupts except RTC SECOND */ |
| pcf->mask_regs[0] = 0x80; |
| pcf50633_reg_write(pcf, PCF50633_REG_INT1M, pcf->mask_regs[0]); |
| pcf50633_reg_write(pcf, PCF50633_REG_INT2M, 0x00); |
| pcf50633_reg_write(pcf, PCF50633_REG_INT3M, 0x00); |
| pcf50633_reg_write(pcf, PCF50633_REG_INT4M, 0x00); |
| pcf50633_reg_write(pcf, PCF50633_REG_INT5M, 0x00); |
| |
| /* Create sub devices */ |
| pcf50633_client_dev_register(pcf, "pcf50633-input", |
| &pcf->input_pdev); |
| pcf50633_client_dev_register(pcf, "pcf50633-rtc", |
| &pcf->rtc_pdev); |
| pcf50633_client_dev_register(pcf, "pcf50633-mbc", |
| &pcf->mbc_pdev); |
| pcf50633_client_dev_register(pcf, "pcf50633-adc", |
| &pcf->adc_pdev); |
| |
| for (i = 0; i < PCF50633_NUM_REGULATORS; i++) { |
| struct platform_device *pdev; |
| |
| pdev = platform_device_alloc("pcf50633-regltr", i); |
| if (!pdev) { |
| dev_err(pcf->dev, "Cannot create regulator\n"); |
| continue; |
| } |
| |
| pdev->dev.parent = pcf->dev; |
| pdev->dev.platform_data = &pdata->reg_init_data[i]; |
| pdev->dev.driver_data = pcf; |
| pcf->regulator_pdev[i] = pdev; |
| |
| platform_device_add(pdev); |
| } |
| |
| if (client->irq) { |
| ret = request_irq(client->irq, pcf50633_irq, |
| IRQF_TRIGGER_LOW, "pcf50633", pcf); |
| |
| if (ret) { |
| dev_err(pcf->dev, "Failed to request IRQ %d\n", ret); |
| goto err; |
| } |
| } else { |
| dev_err(pcf->dev, "No IRQ configured\n"); |
| goto err; |
| } |
| |
| if (enable_irq_wake(client->irq) < 0) |
| dev_err(pcf->dev, "IRQ %u cannot be enabled as wake-up source" |
| "in this hardware revision", client->irq); |
| |
| ret = sysfs_create_group(&client->dev.kobj, &pcf_attr_group); |
| if (ret) |
| dev_err(pcf->dev, "error creating sysfs entries\n"); |
| |
| if (pdata->probe_done) |
| pdata->probe_done(pcf); |
| |
| return 0; |
| |
| err: |
| kfree(pcf); |
| return ret; |
| } |
| |
| static int __devexit pcf50633_remove(struct i2c_client *client) |
| { |
| struct pcf50633 *pcf = i2c_get_clientdata(client); |
| int i; |
| |
| free_irq(pcf->irq, pcf); |
| |
| platform_device_unregister(pcf->input_pdev); |
| platform_device_unregister(pcf->rtc_pdev); |
| platform_device_unregister(pcf->mbc_pdev); |
| platform_device_unregister(pcf->adc_pdev); |
| |
| for (i = 0; i < PCF50633_NUM_REGULATORS; i++) |
| platform_device_unregister(pcf->regulator_pdev[i]); |
| |
| kfree(pcf); |
| |
| return 0; |
| } |
| |
| static struct i2c_device_id pcf50633_id_table[] = { |
| {"pcf50633", 0x73}, |
| }; |
| |
| static struct i2c_driver pcf50633_driver = { |
| .driver = { |
| .name = "pcf50633", |
| .suspend = pcf50633_suspend, |
| .resume = pcf50633_resume, |
| }, |
| .id_table = pcf50633_id_table, |
| .probe = pcf50633_probe, |
| .remove = __devexit_p(pcf50633_remove), |
| }; |
| |
| static int __init pcf50633_init(void) |
| { |
| return i2c_add_driver(&pcf50633_driver); |
| } |
| |
| static void __exit pcf50633_exit(void) |
| { |
| i2c_del_driver(&pcf50633_driver); |
| } |
| |
| MODULE_DESCRIPTION("I2C chip driver for NXP PCF50633 PMU"); |
| MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>"); |
| MODULE_LICENSE("GPL"); |
| |
| module_init(pcf50633_init); |
| module_exit(pcf50633_exit); |