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path: root/drivers/hwmon/ams/ams-i2c.c
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Diffstat (limited to 'drivers/hwmon/ams/ams-i2c.c')
-rw-r--r--drivers/hwmon/ams/ams-i2c.c60
1 files changed, 18 insertions, 42 deletions
diff --git a/drivers/hwmon/ams/ams-i2c.c b/drivers/hwmon/ams/ams-i2c.c
index 957760536a4c..2cbf8a6506c7 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 */
@@ -261,11 +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);
/* Set implementation stuff */
ams_info.of_node = np;
@@ -275,25 +269,7 @@ 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;
}