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Diffstat (limited to 'drivers/i2c/i2c-core.c')
-rw-r--r--drivers/i2c/i2c-core.c38
1 files changed, 23 insertions, 15 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index e7d984866de..b6f3a0de6ca 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -152,7 +152,7 @@ static void i2c_device_shutdown(struct device *dev)
driver->shutdown(to_i2c_client(dev));
}
-static int i2c_device_suspend(struct device * dev, pm_message_t mesg)
+static int i2c_device_suspend(struct device *dev, pm_message_t mesg)
{
struct i2c_driver *driver;
@@ -164,7 +164,7 @@ static int i2c_device_suspend(struct device * dev, pm_message_t mesg)
return driver->suspend(to_i2c_client(dev), mesg);
}
-static int i2c_device_resume(struct device * dev)
+static int i2c_device_resume(struct device *dev)
{
struct i2c_driver *driver;
@@ -187,13 +187,15 @@ static void i2c_client_dev_release(struct device *dev)
kfree(to_i2c_client(dev));
}
-static ssize_t show_client_name(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t
+show_client_name(struct device *dev, struct device_attribute *attr, char *buf)
{
struct i2c_client *client = to_i2c_client(dev);
return sprintf(buf, "%s\n", client->name);
}
-static ssize_t show_modalias(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t
+show_modalias(struct device *dev, struct device_attribute *attr, char *buf)
{
struct i2c_client *client = to_i2c_client(dev);
return sprintf(buf, "%s%s\n", I2C_MODULE_PREFIX, client->name);
@@ -365,8 +367,7 @@ static struct i2c_driver dummy_driver = {
* This returns the new i2c client, which should be saved for later use with
* i2c_unregister_device(); or NULL to indicate an error.
*/
-struct i2c_client *
-i2c_new_dummy(struct i2c_adapter *adapter, u16 address)
+struct i2c_client *i2c_new_dummy(struct i2c_adapter *adapter, u16 address)
{
struct i2c_board_info info = {
I2C_BOARD_INFO("dummy", address),
@@ -413,8 +414,8 @@ static void i2c_scan_static_board_info(struct i2c_adapter *adapter)
if (devinfo->busnum == adapter->nr
&& !i2c_new_device(adapter,
&devinfo->board_info))
- printk(KERN_ERR "i2c-core: can't create i2c%d-%04x\n",
- i2c_adapter_id(adapter),
+ dev_err(&adapter->dev,
+ "Can't create device at 0x%02x\n",
devinfo->board_info.addr);
}
mutex_unlock(&__i2c_board_lock);
@@ -459,6 +460,11 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
pr_debug("I2C adapter driver [%s] forgot to specify "
"physical device\n", adap->name);
}
+
+ /* Set default timeout to 1 second if not already set */
+ if (adap->timeout == 0)
+ adap->timeout = HZ;
+
dev_set_name(&adap->dev, "i2c-%d", adap->nr);
adap->dev.release = &i2c_adapter_dev_release;
adap->dev.class = &i2c_adapter_class;
@@ -581,7 +587,8 @@ static int i2c_do_del_adapter(struct device_driver *d, void *data)
struct i2c_client *client, *_n;
int res;
- /* Remove the devices we created ourselves */
+ /* Remove the devices we created ourselves as the result of hardware
+ * probing (using a driver's detect method) */
list_for_each_entry_safe(client, _n, &driver->clients, detected) {
if (client->adapter == adapter) {
dev_dbg(&adapter->dev, "Removing %s at 0x%x\n",
@@ -749,6 +756,8 @@ static int __detach_adapter(struct device *dev, void *data)
struct i2c_driver *driver = data;
struct i2c_client *client, *_n;
+ /* Remove the devices we created ourselves as the result of hardware
+ * probing (using a driver's detect method) */
list_for_each_entry_safe(client, _n, &driver->clients, detected) {
dev_dbg(&adapter->dev, "Removing %s at 0x%x\n",
client->name, client->addr);
@@ -841,7 +850,7 @@ int i2c_attach_client(struct i2c_client *client)
if (client->driver && !is_newstyle_driver(client->driver)) {
client->dev.release = i2c_client_release;
- client->dev.uevent_suppress = 1;
+ dev_set_uevent_suppress(&client->dev, 1);
} else
client->dev.release = i2c_client_dev_release;
@@ -1012,7 +1021,7 @@ module_exit(i2c_exit);
* Note that there is no requirement that each message be sent to
* the same slave address, although that is the most common model.
*/
-int i2c_transfer(struct i2c_adapter * adap, struct i2c_msg *msgs, int num)
+int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
{
int ret;
@@ -1519,8 +1528,7 @@ EXPORT_SYMBOL(i2c_put_adapter);
/* The SMBus parts */
#define POLY (0x1070U << 3)
-static u8
-crc8(u16 data)
+static u8 crc8(u16 data)
{
int i;
@@ -1984,9 +1992,9 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
* This executes an SMBus protocol operation, and returns a negative
* errno code else zero on success.
*/
-s32 i2c_smbus_xfer(struct i2c_adapter * adapter, u16 addr, unsigned short flags,
+s32 i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr, unsigned short flags,
char read_write, u8 command, int protocol,
- union i2c_smbus_data * data)
+ union i2c_smbus_data *data)
{
s32 res;