1 files changed, 43 insertions, 9 deletions

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 4f34823e86b1..0ac2f90ab840 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -155,6 +155,35 @@ static void i2c_device_shutdown(struct device *dev)
                 driver->shutdown(client);
 }
 
+#ifdef CONFIG_SUSPEND
+static int i2c_device_pm_suspend(struct device *dev)
+{
+        const struct dev_pm_ops *pm;
+
+        if (!dev->driver)
+                return 0;
+        pm = dev->driver->pm;
+        if (!pm || !pm->suspend)
+                return 0;
+        return pm->suspend(dev);
+}
+
+static int i2c_device_pm_resume(struct device *dev)
+{
+        const struct dev_pm_ops *pm;
+
+        if (!dev->driver)
+                return 0;
+        pm = dev->driver->pm;
+        if (!pm || !pm->resume)
+                return 0;
+        return pm->resume(dev);
+}
+#else
+#define i2c_device_pm_suspend   NULL
+#define i2c_device_pm_resume    NULL
+#endif
+
 static int i2c_device_suspend(struct device *dev, pm_message_t mesg)
 {
         struct i2c_client *client = i2c_verify_client(dev);
@@ -219,6 +248,11 @@ static const struct attribute_group *i2c_dev_attr_groups[] = {
         NULL
 };
 
+const static struct dev_pm_ops i2c_device_pm_ops = {
+        .suspend = i2c_device_pm_suspend,
+        .resume = i2c_device_pm_resume,
+};
+
 struct bus_type i2c_bus_type = {
         .name           = "i2c",
         .match          = i2c_device_match,
@@ -227,6 +261,7 @@ struct bus_type i2c_bus_type = {
         .shutdown       = i2c_device_shutdown,
         .suspend        = i2c_device_suspend,
         .resume         = i2c_device_resume,
+        .pm             = &i2c_device_pm_ops,
 };
 EXPORT_SYMBOL_GPL(i2c_bus_type);
 
@@ -1184,7 +1219,7 @@ static int i2c_detect_address(struct i2c_client *temp_client,
         /* Finally call the custom detection function */
         memset(&info, 0, sizeof(struct i2c_board_info));
         info.addr = addr;
-        err = driver->detect(temp_client, -1, &info);
+        err = driver->detect(temp_client, &info);
         if (err) {
                 /* -ENODEV is returned if the detection fails. We catch it
                    here as this isn't an error. */
@@ -1214,13 +1249,13 @@ static int i2c_detect_address(struct i2c_client *temp_client,
 
 static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver)
 {
-        const struct i2c_client_address_data *address_data;
+        const unsigned short *address_list;
         struct i2c_client *temp_client;
         int i, err = 0;
         int adap_id = i2c_adapter_id(adapter);
 
-        address_data = driver->address_data;
-        if (!driver->detect || !address_data)
+        address_list = driver->address_list;
+        if (!driver->detect || !address_list)
                 return 0;
 
         /* Set up a temporary client to help detect callback */
@@ -1235,7 +1270,7 @@ static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver)
 
         /* Stop here if we can't use SMBUS_QUICK */
         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_QUICK)) {
-                if (address_data->normal_i2c[0] == I2C_CLIENT_END)
+                if (address_list[0] == I2C_CLIENT_END)
                         goto exit_free;
 
                 dev_warn(&adapter->dev, "SMBus Quick command not supported, "
@@ -1244,11 +1279,10 @@ static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver)
                 goto exit_free;
         }
 
-        for (i = 0; address_data->normal_i2c[i] != I2C_CLIENT_END; i += 1) {
+        for (i = 0; address_list[i] != I2C_CLIENT_END; i += 1) {
                 dev_dbg(&adapter->dev, "found normal entry for adapter %d, "
-                        "addr 0x%02x\n", adap_id,
-                        address_data->normal_i2c[i]);
-                temp_client->addr = address_data->normal_i2c[i];
+                        "addr 0x%02x\n", adap_id, address_list[i]);
+                temp_client->addr = address_list[i];
                 err = i2c_detect_address(temp_client, driver);
                 if (err)
                         goto exit_free;