+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2007-2010 ST-Ericsson
- * Low-level core for exclusive access to the AB3100 IC on the I2C bus
- * and some basic chip-configuration.
- * Author: Linus Walleij <linus.walleij@stericsson.com>
- */
-
-#include <linux/i2c.h>
-#include <linux/mutex.h>
-#include <linux/list.h>
-#include <linux/notifier.h>
-#include <linux/slab.h>
-#include <linux/err.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/device.h>
-#include <linux/interrupt.h>
-#include <linux/random.h>
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-#include <linux/uaccess.h>
-#include <linux/mfd/core.h>
-#include <linux/mfd/ab3100.h>
-#include <linux/mfd/abx500.h>
-
-/* These are the only registers inside AB3100 used in this main file */
-
-/* Interrupt event registers */
-#define AB3100_EVENTA1 0x21
-#define AB3100_EVENTA2 0x22
-#define AB3100_EVENTA3 0x23
-
-/* AB3100 DAC converter registers */
-#define AB3100_DIS 0x00
-#define AB3100_D0C 0x01
-#define AB3100_D1C 0x02
-#define AB3100_D2C 0x03
-#define AB3100_D3C 0x04
-
-/* Chip ID register */
-#define AB3100_CID 0x20
-
-/* AB3100 interrupt registers */
-#define AB3100_IMRA1 0x24
-#define AB3100_IMRA2 0x25
-#define AB3100_IMRA3 0x26
-#define AB3100_IMRB1 0x2B
-#define AB3100_IMRB2 0x2C
-#define AB3100_IMRB3 0x2D
-
-/* System Power Monitoring and control registers */
-#define AB3100_MCA 0x2E
-#define AB3100_MCB 0x2F
-
-/* SIM power up */
-#define AB3100_SUP 0x50
-
-/*
- * I2C communication
- *
- * The AB3100 is usually assigned address 0x48 (7-bit)
- * The chip is defined in the platform i2c_board_data section.
- */
-static int ab3100_get_chip_id(struct device *dev)
-{
- struct ab3100 *ab3100 = dev_get_drvdata(dev->parent);
-
- return (int)ab3100->chip_id;
-}
-
-static int ab3100_set_register_interruptible(struct ab3100 *ab3100,
- u8 reg, u8 regval)
-{
- u8 regandval[2] = {reg, regval};
- int err;
-
- err = mutex_lock_interruptible(&ab3100->access_mutex);
- if (err)
- return err;
-
- /*
- * A two-byte write message with the first byte containing the register
- * number and the second byte containing the value to be written
- * effectively sets a register in the AB3100.
- */
- err = i2c_master_send(ab3100->i2c_client, regandval, 2);
- if (err < 0) {
- dev_err(ab3100->dev,
- "write error (write register): %d\n",
- err);
- } else if (err != 2) {
- dev_err(ab3100->dev,
- "write error (write register)\n"
- " %d bytes transferred (expected 2)\n",
- err);
- err = -EIO;
- } else {
- /* All is well */
- err = 0;
- }
- mutex_unlock(&ab3100->access_mutex);
- return err;
-}
-
-static int set_register_interruptible(struct device *dev,
- u8 bank, u8 reg, u8 value)
-{
- struct ab3100 *ab3100 = dev_get_drvdata(dev->parent);
-
- return ab3100_set_register_interruptible(ab3100, reg, value);
-}
-
-/*
- * The test registers exist at an I2C bus address up one
- * from the ordinary base. They are not supposed to be used
- * in production code, but sometimes you have to do that
- * anyway. It's currently only used from this file so declare
- * it static and do not export.
- */
-static int ab3100_set_test_register_interruptible(struct ab3100 *ab3100,
- u8 reg, u8 regval)
-{
- u8 regandval[2] = {reg, regval};
- int err;
-
- err = mutex_lock_interruptible(&ab3100->access_mutex);
- if (err)
- return err;
-
- err = i2c_master_send(ab3100->testreg_client, regandval, 2);
- if (err < 0) {
- dev_err(ab3100->dev,
- "write error (write test register): %d\n",
- err);
- } else if (err != 2) {
- dev_err(ab3100->dev,
- "write error (write test register)\n"
- " %d bytes transferred (expected 2)\n",
- err);
- err = -EIO;
- } else {
- /* All is well */
- err = 0;
- }
- mutex_unlock(&ab3100->access_mutex);
-
- return err;
-}
-
-static int ab3100_get_register_interruptible(struct ab3100 *ab3100,
- u8 reg, u8 *regval)
-{
- int err;
-
- err = mutex_lock_interruptible(&ab3100->access_mutex);
- if (err)
- return err;
-
- /*
- * AB3100 require an I2C "stop" command between each message, else
- * it will not work. The only way of achieveing this with the
- * message transport layer is to send the read and write messages
- * separately.
- */
- err = i2c_master_send(ab3100->i2c_client, ®, 1);
- if (err < 0) {
- dev_err(ab3100->dev,
- "write error (send register address): %d\n",
- err);
- goto get_reg_out_unlock;
- } else if (err != 1) {
- dev_err(ab3100->dev,
- "write error (send register address)\n"
- " %d bytes transferred (expected 1)\n",
- err);
- err = -EIO;
- goto get_reg_out_unlock;
- } else {
- /* All is well */
- err = 0;
- }
-
- err = i2c_master_recv(ab3100->i2c_client, regval, 1);
- if (err < 0) {
- dev_err(ab3100->dev,
- "write error (read register): %d\n",
- err);
- goto get_reg_out_unlock;
- } else if (err != 1) {
- dev_err(ab3100->dev,
- "write error (read register)\n"
- " %d bytes transferred (expected 1)\n",
- err);
- err = -EIO;
- goto get_reg_out_unlock;
- } else {
- /* All is well */
- err = 0;
- }
-
- get_reg_out_unlock:
- mutex_unlock(&ab3100->access_mutex);
- return err;
-}
-
-static int get_register_interruptible(struct device *dev, u8 bank, u8 reg,
- u8 *value)
-{
- struct ab3100 *ab3100 = dev_get_drvdata(dev->parent);
-
- return ab3100_get_register_interruptible(ab3100, reg, value);
-}
-
-static int ab3100_get_register_page_interruptible(struct ab3100 *ab3100,
- u8 first_reg, u8 *regvals, u8 numregs)
-{
- int err;
-
- if (ab3100->chip_id == 0xa0 ||
- ab3100->chip_id == 0xa1)
- /* These don't support paged reads */
- return -EIO;
-
- err = mutex_lock_interruptible(&ab3100->access_mutex);
- if (err)
- return err;
-
- /*
- * Paged read also require an I2C "stop" command.
- */
- err = i2c_master_send(ab3100->i2c_client, &first_reg, 1);
- if (err < 0) {
- dev_err(ab3100->dev,
- "write error (send first register address): %d\n",
- err);
- goto get_reg_page_out_unlock;
- } else if (err != 1) {
- dev_err(ab3100->dev,
- "write error (send first register address)\n"
- " %d bytes transferred (expected 1)\n",
- err);
- err = -EIO;
- goto get_reg_page_out_unlock;
- }
-
- err = i2c_master_recv(ab3100->i2c_client, regvals, numregs);
- if (err < 0) {
- dev_err(ab3100->dev,
- "write error (read register page): %d\n",
- err);
- goto get_reg_page_out_unlock;
- } else if (err != numregs) {
- dev_err(ab3100->dev,
- "write error (read register page)\n"
- " %d bytes transferred (expected %d)\n",
- err, numregs);
- err = -EIO;
- goto get_reg_page_out_unlock;
- }
-
- /* All is well */
- err = 0;
-
- get_reg_page_out_unlock:
- mutex_unlock(&ab3100->access_mutex);
- return err;
-}
-
-static int get_register_page_interruptible(struct device *dev, u8 bank,
- u8 first_reg, u8 *regvals, u8 numregs)
-{
- struct ab3100 *ab3100 = dev_get_drvdata(dev->parent);
-
- return ab3100_get_register_page_interruptible(ab3100,
- first_reg, regvals, numregs);
-}
-
-static int ab3100_mask_and_set_register_interruptible(struct ab3100 *ab3100,
- u8 reg, u8 andmask, u8 ormask)
-{
- u8 regandval[2] = {reg, 0};
- int err;
-
- err = mutex_lock_interruptible(&ab3100->access_mutex);
- if (err)
- return err;
-
- /* First read out the target register */
- err = i2c_master_send(ab3100->i2c_client, ®, 1);
- if (err < 0) {
- dev_err(ab3100->dev,
- "write error (maskset send address): %d\n",
- err);
- goto get_maskset_unlock;
- } else if (err != 1) {
- dev_err(ab3100->dev,
- "write error (maskset send address)\n"
- " %d bytes transferred (expected 1)\n",
- err);
- err = -EIO;
- goto get_maskset_unlock;
- }
-
- err = i2c_master_recv(ab3100->i2c_client, ®andval[1], 1);
- if (err < 0) {
- dev_err(ab3100->dev,
- "write error (maskset read register): %d\n",
- err);
- goto get_maskset_unlock;
- } else if (err != 1) {
- dev_err(ab3100->dev,
- "write error (maskset read register)\n"
- " %d bytes transferred (expected 1)\n",
- err);
- err = -EIO;
- goto get_maskset_unlock;
- }
-
- /* Modify the register */
- regandval[1] &= andmask;
- regandval[1] |= ormask;
-
- /* Write the register */
- err = i2c_master_send(ab3100->i2c_client, regandval, 2);
- if (err < 0) {
- dev_err(ab3100->dev,
- "write error (write register): %d\n",
- err);
- goto get_maskset_unlock;
- } else if (err != 2) {
- dev_err(ab3100->dev,
- "write error (write register)\n"
- " %d bytes transferred (expected 2)\n",
- err);
- err = -EIO;
- goto get_maskset_unlock;
- }
-
- /* All is well */
- err = 0;
-
- get_maskset_unlock:
- mutex_unlock(&ab3100->access_mutex);
- return err;
-}
-
-static int mask_and_set_register_interruptible(struct device *dev, u8 bank,
- u8 reg, u8 bitmask, u8 bitvalues)
-{
- struct ab3100 *ab3100 = dev_get_drvdata(dev->parent);
-
- return ab3100_mask_and_set_register_interruptible(ab3100,
- reg, bitmask, (bitmask & bitvalues));
-}
-
-/*
- * Register a simple callback for handling any AB3100 events.
- */
-int ab3100_event_register(struct ab3100 *ab3100,
- struct notifier_block *nb)
-{
- return blocking_notifier_chain_register(&ab3100->event_subscribers,
- nb);
-}
-EXPORT_SYMBOL(ab3100_event_register);
-
-/*
- * Remove a previously registered callback.
- */
-int ab3100_event_unregister(struct ab3100 *ab3100,
- struct notifier_block *nb)
-{
- return blocking_notifier_chain_unregister(&ab3100->event_subscribers,
- nb);
-}
-EXPORT_SYMBOL(ab3100_event_unregister);
-
-
-static int ab3100_event_registers_startup_state_get(struct device *dev,
- u8 *event)
-{
- struct ab3100 *ab3100 = dev_get_drvdata(dev->parent);
-
- if (!ab3100->startup_events_read)
- return -EAGAIN; /* Try again later */
- memcpy(event, ab3100->startup_events, 3);
-
- return 0;
-}
-
-static struct abx500_ops ab3100_ops = {
- .get_chip_id = ab3100_get_chip_id,
- .set_register = set_register_interruptible,
- .get_register = get_register_interruptible,
- .get_register_page = get_register_page_interruptible,
- .set_register_page = NULL,
- .mask_and_set_register = mask_and_set_register_interruptible,
- .event_registers_startup_state_get =
- ab3100_event_registers_startup_state_get,
- .startup_irq_enabled = NULL,
-};
-
-/*
- * This is a threaded interrupt handler so we can make some
- * I2C calls etc.
- */
-static irqreturn_t ab3100_irq_handler(int irq, void *data)
-{
- struct ab3100 *ab3100 = data;
- u8 event_regs[3];
- u32 fatevent;
- int err;
-
- err = ab3100_get_register_page_interruptible(ab3100, AB3100_EVENTA1,
- event_regs, 3);
- if (err)
- goto err_event;
-
- fatevent = (event_regs[0] << 16) |
- (event_regs[1] << 8) |
- event_regs[2];
-
- if (!ab3100->startup_events_read) {
- ab3100->startup_events[0] = event_regs[0];
- ab3100->startup_events[1] = event_regs[1];
- ab3100->startup_events[2] = event_regs[2];
- ab3100->startup_events_read = true;
- }
- /*
- * The notified parties will have to mask out the events
- * they're interested in and react to them. They will be
- * notified on all events, then they use the fatevent value
- * to determine if they're interested.
- */
- blocking_notifier_call_chain(&ab3100->event_subscribers,
- fatevent, NULL);
-
- dev_dbg(ab3100->dev,
- "IRQ Event: 0x%08x\n", fatevent);
-
- return IRQ_HANDLED;
-
- err_event:
- dev_dbg(ab3100->dev,
- "error reading event status\n");
- return IRQ_HANDLED;
-}
-
-#ifdef CONFIG_DEBUG_FS
-/*
- * Some debugfs entries only exposed if we're using debug
- */
-static int ab3100_registers_print(struct seq_file *s, void *p)
-{
- struct ab3100 *ab3100 = s->private;
- u8 value;
- u8 reg;
-
- seq_puts(s, "AB3100 registers:\n");
-
- for (reg = 0; reg < 0xff; reg++) {
- ab3100_get_register_interruptible(ab3100, reg, &value);
- seq_printf(s, "[0x%x]: 0x%x\n", reg, value);
- }
- return 0;
-}
-
-static int ab3100_registers_open(struct inode *inode, struct file *file)
-{
- return single_open(file, ab3100_registers_print, inode->i_private);
-}
-
-static const struct file_operations ab3100_registers_fops = {
- .open = ab3100_registers_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-struct ab3100_get_set_reg_priv {
- struct ab3100 *ab3100;
- bool mode;
-};
-
-static ssize_t ab3100_get_set_reg(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct ab3100_get_set_reg_priv *priv = file->private_data;
- struct ab3100 *ab3100 = priv->ab3100;
- char buf[32];
- ssize_t buf_size;
- int regp;
- u8 user_reg;
- int err;
- int i = 0;
-
- /* Get userspace string and assure termination */
- buf_size = min((ssize_t)count, (ssize_t)(sizeof(buf)-1));
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
- buf[buf_size] = 0;
-
- /*
- * The idea is here to parse a string which is either
- * "0xnn" for reading a register, or "0xaa 0xbb" for
- * writing 0xbb to the register 0xaa. First move past
- * whitespace and then begin to parse the register.
- */
- while ((i < buf_size) && (buf[i] == ' '))
- i++;
- regp = i;
-
- /*
- * Advance pointer to end of string then terminate
- * the register string. This is needed to satisfy
- * the kstrtou8() function.
- */
- while ((i < buf_size) && (buf[i] != ' '))
- i++;
- buf[i] = '\0';
-
- err = kstrtou8(&buf[regp], 16, &user_reg);
- if (err)
- return err;
-
- /* Either we read or we write a register here */
- if (!priv->mode) {
- /* Reading */
- u8 regvalue;
-
- ab3100_get_register_interruptible(ab3100, user_reg, ®value);
-
- dev_info(ab3100->dev,
- "debug read AB3100 reg[0x%02x]: 0x%02x\n",
- user_reg, regvalue);
- } else {
- int valp;
- u8 user_value;
- u8 regvalue;
-
- /*
- * Writing, we need some value to write to
- * the register so keep parsing the string
- * from userspace.
- */
- i++;
- while ((i < buf_size) && (buf[i] == ' '))
- i++;
- valp = i;
- while ((i < buf_size) && (buf[i] != ' '))
- i++;
- buf[i] = '\0';
-
- err = kstrtou8(&buf[valp], 16, &user_value);
- if (err)
- return err;
-
- ab3100_set_register_interruptible(ab3100, user_reg, user_value);
- ab3100_get_register_interruptible(ab3100, user_reg, ®value);
-
- dev_info(ab3100->dev,
- "debug write reg[0x%02x]\n"
- " with 0x%02x, after readback: 0x%02x\n",
- user_reg, user_value, regvalue);
- }
- return buf_size;
-}
-
-static const struct file_operations ab3100_get_set_reg_fops = {
- .open = simple_open,
- .write = ab3100_get_set_reg,
- .llseek = noop_llseek,
-};
-
-static struct ab3100_get_set_reg_priv ab3100_get_priv;
-static struct ab3100_get_set_reg_priv ab3100_set_priv;
-
-static void ab3100_setup_debugfs(struct ab3100 *ab3100)
-{
- struct dentry *ab3100_dir;
-
- ab3100_dir = debugfs_create_dir("ab3100", NULL);
-
- debugfs_create_file("registers", S_IRUGO, ab3100_dir, ab3100,
- &ab3100_registers_fops);
-
- ab3100_get_priv.ab3100 = ab3100;
- ab3100_get_priv.mode = false;
- debugfs_create_file("get_reg", S_IWUSR, ab3100_dir, &ab3100_get_priv,
- &ab3100_get_set_reg_fops);
-
- ab3100_set_priv.ab3100 = ab3100;
- ab3100_set_priv.mode = true;
- debugfs_create_file("set_reg", S_IWUSR, ab3100_dir, &ab3100_set_priv,
- &ab3100_get_set_reg_fops);
-}
-#else
-static inline void ab3100_setup_debugfs(struct ab3100 *ab3100)
-{
-}
-#endif
-
-/*
- * Basic set-up, datastructure creation/destruction and I2C interface.
- * This sets up a default config in the AB3100 chip so that it
- * will work as expected.
- */
-
-struct ab3100_init_setting {
- u8 abreg;
- u8 setting;
-};
-
-static const struct ab3100_init_setting ab3100_init_settings[] = {
- {
- .abreg = AB3100_MCA,
- .setting = 0x01
- }, {
- .abreg = AB3100_MCB,
- .setting = 0x30
- }, {
- .abreg = AB3100_IMRA1,
- .setting = 0x00
- }, {
- .abreg = AB3100_IMRA2,
- .setting = 0xFF
- }, {
- .abreg = AB3100_IMRA3,
- .setting = 0x01
- }, {
- .abreg = AB3100_IMRB1,
- .setting = 0xBF
- }, {
- .abreg = AB3100_IMRB2,
- .setting = 0xFF
- }, {
- .abreg = AB3100_IMRB3,
- .setting = 0xFF
- }, {
- .abreg = AB3100_SUP,
- .setting = 0x00
- }, {
- .abreg = AB3100_DIS,
- .setting = 0xF0
- }, {
- .abreg = AB3100_D0C,
- .setting = 0x00
- }, {
- .abreg = AB3100_D1C,
- .setting = 0x00
- }, {
- .abreg = AB3100_D2C,
- .setting = 0x00
- }, {
- .abreg = AB3100_D3C,
- .setting = 0x00
- },
-};
-
-static int ab3100_setup(struct ab3100 *ab3100)
-{
- int err = 0;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(ab3100_init_settings); i++) {
- err = ab3100_set_register_interruptible(ab3100,
- ab3100_init_settings[i].abreg,
- ab3100_init_settings[i].setting);
- if (err)
- goto exit_no_setup;
- }
-
- /*
- * Special trick to make the AB3100 use the 32kHz clock (RTC)
- * bit 3 in test register 0x02 is a special, undocumented test
- * register bit that only exist in AB3100 P1E
- */
- if (ab3100->chip_id == 0xc4) {
- dev_warn(ab3100->dev,
- "AB3100 P1E variant detected forcing chip to 32KHz\n");
- err = ab3100_set_test_register_interruptible(ab3100,
- 0x02, 0x08);
- }
-
- exit_no_setup:
- return err;
-}
-
-/* The subdevices of the AB3100 */
-static struct mfd_cell ab3100_devs[] = {
- {
- .name = "ab3100-dac",
- .id = -1,
- },
- {
- .name = "ab3100-leds",
- .id = -1,
- },
- {
- .name = "ab3100-power",
- .id = -1,
- },
- {
- .name = "ab3100-regulators",
- .of_compatible = "stericsson,ab3100-regulators",
- .id = -1,
- },
- {
- .name = "ab3100-sim",
- .id = -1,
- },
- {
- .name = "ab3100-uart",
- .id = -1,
- },
- {
- .name = "ab3100-rtc",
- .id = -1,
- },
- {
- .name = "ab3100-charger",
- .id = -1,
- },
- {
- .name = "ab3100-boost",
- .id = -1,
- },
- {
- .name = "ab3100-adc",
- .id = -1,
- },
- {
- .name = "ab3100-fuelgauge",
- .id = -1,
- },
- {
- .name = "ab3100-vibrator",
- .id = -1,
- },
- {
- .name = "ab3100-otp",
- .id = -1,
- },
- {
- .name = "ab3100-codec",
- .id = -1,
- },
-};
-
-struct ab_family_id {
- u8 id;
- char *name;
-};
-
-static const struct ab_family_id ids[] = {
- /* AB3100 */
- {
- .id = 0xc0,
- .name = "P1A"
- }, {
- .id = 0xc1,
- .name = "P1B"
- }, {
- .id = 0xc2,
- .name = "P1C"
- }, {
- .id = 0xc3,
- .name = "P1D"
- }, {
- .id = 0xc4,
- .name = "P1E"
- }, {
- .id = 0xc5,
- .name = "P1F/R1A"
- }, {
- .id = 0xc6,
- .name = "P1G/R1A"
- }, {
- .id = 0xc7,
- .name = "P2A/R2A"
- }, {
- .id = 0xc8,
- .name = "P2B/R2B"
- },
- /* AB3000 variants, not supported */
- {
- .id = 0xa0
- }, {
- .id = 0xa1
- }, {
- .id = 0xa2
- }, {
- .id = 0xa3
- }, {
- .id = 0xa4
- }, {
- .id = 0xa5
- }, {
- .id = 0xa6
- }, {
- .id = 0xa7
- },
- /* Terminator */
- {
- .id = 0x00,
- },
-};
-
-static int ab3100_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct ab3100 *ab3100;
- struct ab3100_platform_data *ab3100_plf_data =
- dev_get_platdata(&client->dev);
- int err;
- int i;
-
- ab3100 = devm_kzalloc(&client->dev, sizeof(struct ab3100), GFP_KERNEL);
- if (!ab3100)
- return -ENOMEM;
-
- /* Initialize data structure */
- mutex_init(&ab3100->access_mutex);
- BLOCKING_INIT_NOTIFIER_HEAD(&ab3100->event_subscribers);
-
- ab3100->i2c_client = client;
- ab3100->dev = &ab3100->i2c_client->dev;
-
- i2c_set_clientdata(client, ab3100);
-
- /* Read chip ID register */
- err = ab3100_get_register_interruptible(ab3100, AB3100_CID,
- &ab3100->chip_id);
- if (err) {
- dev_err(&client->dev,
- "failed to communicate with AB3100 chip\n");
- goto exit_no_detect;
- }
-
- for (i = 0; ids[i].id != 0x0; i++) {
- if (ids[i].id == ab3100->chip_id) {
- if (ids[i].name)
- break;
-
- dev_err(&client->dev, "AB3000 is not supported\n");
- goto exit_no_detect;
- }
- }
-
- snprintf(&ab3100->chip_name[0],
- sizeof(ab3100->chip_name) - 1, "AB3100 %s", ids[i].name);
-
- if (ids[i].id == 0x0) {
- dev_err(&client->dev, "unknown analog baseband chip id: 0x%x\n",
- ab3100->chip_id);
- dev_err(&client->dev,
- "accepting it anyway. Please update the driver.\n");
- goto exit_no_detect;
- }
-
- dev_info(&client->dev, "Detected chip: %s\n",
- &ab3100->chip_name[0]);
-
- /* Attach a second dummy i2c_client to the test register address */
- ab3100->testreg_client = i2c_new_dummy_device(client->adapter,
- client->addr + 1);
- if (IS_ERR(ab3100->testreg_client)) {
- err = PTR_ERR(ab3100->testreg_client);
- goto exit_no_testreg_client;
- }
-
- err = ab3100_setup(ab3100);
- if (err)
- goto exit_no_setup;
-
- err = devm_request_threaded_irq(&client->dev,
- client->irq, NULL, ab3100_irq_handler,
- IRQF_ONESHOT, "ab3100-core", ab3100);
- if (err)
- goto exit_no_irq;
-
- err = abx500_register_ops(&client->dev, &ab3100_ops);
- if (err)
- goto exit_no_ops;
-
- /* Set up and register the platform devices. */
- for (i = 0; i < ARRAY_SIZE(ab3100_devs); i++) {
- ab3100_devs[i].platform_data = ab3100_plf_data;
- ab3100_devs[i].pdata_size = sizeof(struct ab3100_platform_data);
- }
-
- err = mfd_add_devices(&client->dev, 0, ab3100_devs,
- ARRAY_SIZE(ab3100_devs), NULL, 0, NULL);
-
- ab3100_setup_debugfs(ab3100);
-
- return 0;
-
- exit_no_ops:
- exit_no_irq:
- exit_no_setup:
- i2c_unregister_device(ab3100->testreg_client);
- exit_no_testreg_client:
- exit_no_detect:
- return err;
-}
-
-static const struct i2c_device_id ab3100_id[] = {
- { "ab3100", 0 },
- { }
-};
-
-static struct i2c_driver ab3100_driver = {
- .driver = {
- .name = "ab3100",
- .suppress_bind_attrs = true,
- },
- .id_table = ab3100_id,
- .probe = ab3100_probe,
-};
-
-static int __init ab3100_i2c_init(void)
-{
- return i2c_add_driver(&ab3100_driver);
-}
-subsys_initcall(ab3100_i2c_init);
projects / linux-2.6-microblaze.git / blobdiff