diff options
| -rw-r--r-- | drivers/hwmon/ams/ams-i2c.c | 56 | ||||
| -rw-r--r-- | drivers/hwmon/ams/ams.h | 4 | ||||
| -rw-r--r-- | drivers/i2c/busses/i2c-powermac.c | 29 |
3 files changed, 48 insertions, 41 deletions
diff --git a/drivers/hwmon/ams/ams-i2c.c b/drivers/hwmon/ams/ams-i2c.c index 957760536a4c..da26de01068e 100644 --- a/drivers/hwmon/ams/ams-i2c.c +++ b/drivers/hwmon/ams/ams-i2c.c @@ -60,26 +60,34 @@ enum ams_i2c_cmd { AMS_CMD_START, }; -static int ams_i2c_attach(struct i2c_adapter *adapter); -static int ams_i2c_detach(struct i2c_adapter *adapter); +static int ams_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int ams_i2c_remove(struct i2c_client *client); + +static const struct i2c_device_id ams_id[] = { + { "ams", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, ams_id); static struct i2c_driver ams_i2c_driver = { .driver = { .name = "ams", .owner = THIS_MODULE, }, - .attach_adapter = ams_i2c_attach, - .detach_adapter = ams_i2c_detach, + .probe = ams_i2c_probe, + .remove = ams_i2c_remove, + .id_table = ams_id, }; static s32 ams_i2c_read(u8 reg) { - return i2c_smbus_read_byte_data(&ams_info.i2c_client, reg); + return i2c_smbus_read_byte_data(ams_info.i2c_client, reg); } static int ams_i2c_write(u8 reg, u8 value) { - return i2c_smbus_write_byte_data(&ams_info.i2c_client, reg, value); + return i2c_smbus_write_byte_data(ams_info.i2c_client, reg, value); } static int ams_i2c_cmd(enum ams_i2c_cmd cmd) @@ -152,9 +160,9 @@ static void ams_i2c_get_xyz(s8 *x, s8 *y, s8 *z) *z = ams_i2c_read(AMS_DATAZ); } -static int ams_i2c_attach(struct i2c_adapter *adapter) +static int ams_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) { - unsigned long bus; int vmaj, vmin; int result; @@ -162,17 +170,7 @@ static int ams_i2c_attach(struct i2c_adapter *adapter) if (unlikely(ams_info.has_device)) return -ENODEV; - if (strncmp(adapter->name, "uni-n", 5)) - return -ENODEV; - - bus = simple_strtoul(adapter->name + 6, NULL, 10); - if (bus != ams_info.i2c_bus) - return -ENODEV; - - ams_info.i2c_client.addr = ams_info.i2c_address; - ams_info.i2c_client.adapter = adapter; - ams_info.i2c_client.driver = &ams_i2c_driver; - strcpy(ams_info.i2c_client.name, "Apple Motion Sensor"); + ams_info.i2c_client = client; if (ams_i2c_cmd(AMS_CMD_RESET)) { printk(KERN_INFO "ams: Failed to reset the device\n"); @@ -237,7 +235,7 @@ static int ams_i2c_attach(struct i2c_adapter *adapter) return 0; } -static int ams_i2c_detach(struct i2c_adapter *adapter) +static int ams_i2c_remove(struct i2c_client *client) { if (ams_info.has_device) { /* Disable interrupts */ @@ -261,9 +259,7 @@ static void ams_i2c_exit(void) int __init ams_i2c_init(struct device_node *np) { - char *tmp_bus; int result; - const u32 *prop; mutex_lock(&ams_info.lock); @@ -275,24 +271,8 @@ int __init ams_i2c_init(struct device_node *np) ams_info.clear_irq = ams_i2c_clear_irq; ams_info.bustype = BUS_I2C; - /* look for bus either using "reg" or by path */ - prop = of_get_property(ams_info.of_node, "reg", NULL); - if (!prop) { - result = -ENODEV; - - goto exit; - } - - tmp_bus = strstr(ams_info.of_node->full_name, "/i2c-bus@"); - if (tmp_bus) - ams_info.i2c_bus = *(tmp_bus + 9) - '0'; - else - ams_info.i2c_bus = ((*prop) >> 8) & 0x0f; - ams_info.i2c_address = ((*prop) & 0xff) >> 1; - result = i2c_add_driver(&ams_i2c_driver); -exit: mutex_unlock(&ams_info.lock); return result; diff --git a/drivers/hwmon/ams/ams.h b/drivers/hwmon/ams/ams.h index 221ef6915a5f..5ed387b0bd9a 100644 --- a/drivers/hwmon/ams/ams.h +++ b/drivers/hwmon/ams/ams.h @@ -46,9 +46,7 @@ struct ams { #ifdef CONFIG_SENSORS_AMS_I2C /* I2C properties */ - int i2c_bus; - int i2c_address; - struct i2c_client i2c_client; + struct i2c_client *i2c_client; #endif /* Joystick emulation */ diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c index 0e7b1c6724aa..60ca91745e55 100644 --- a/drivers/i2c/busses/i2c-powermac.c +++ b/drivers/i2c/busses/i2c-powermac.c @@ -259,6 +259,35 @@ static int __devinit i2c_powermac_probe(struct platform_device *dev) } printk(KERN_INFO "PowerMac i2c bus %s registered\n", name); + + if (!strncmp(basename, "uni-n", 5)) { + struct device_node *np; + const u32 *prop; + struct i2c_board_info info; + + /* Instantiate I2C motion sensor if present */ + np = of_find_node_by_name(NULL, "accelerometer"); + if (np && of_device_is_compatible(np, "AAPL,accelerometer_1") && + (prop = of_get_property(np, "reg", NULL))) { + int i2c_bus; + const char *tmp_bus; + + /* look for bus either using "reg" or by path */ + tmp_bus = strstr(np->full_name, "/i2c-bus@"); + if (tmp_bus) + i2c_bus = *(tmp_bus + 9) - '0'; + else + i2c_bus = ((*prop) >> 8) & 0x0f; + + if (pmac_i2c_get_channel(bus) == i2c_bus) { + memset(&info, 0, sizeof(struct i2c_board_info)); + info.addr = ((*prop) & 0xff) >> 1; + strlcpy(info.type, "ams", I2C_NAME_SIZE); + i2c_new_device(adapter, &info); + } + } + } + return rc; } |