1 files changed, 50 insertions, 0 deletions

diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index 60e9c2ba26be..787fe06df217 100644
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -24,6 +24,7 @@
 #include <linux/string.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
+#include <linux/i2c.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/device.h>
@@ -941,6 +942,55 @@ out:
         return err;
 }
 
+#if IS_ENABLED(CONFIG_I2C)
+struct i2c_client *dvb_module_probe(const char *module_name,
+                                    const char *name,
+                                    struct i2c_adapter *adap,
+                                    unsigned char addr,
+                                    void *platform_data)
+{
+        struct i2c_client *client;
+        struct i2c_board_info *board_info;
+
+        board_info = kzalloc(sizeof(*board_info), GFP_KERNEL);
+        if (!board_info)
+                return NULL;
+
+        if (name)
+                strlcpy(board_info->type, name, I2C_NAME_SIZE);
+        else
+                strlcpy(board_info->type, module_name, I2C_NAME_SIZE);
+
+        board_info->addr = addr;
+        board_info->platform_data = platform_data;
+        request_module(module_name);
+        client = i2c_new_device(adap, board_info);
+        if (client == NULL || client->dev.driver == NULL) {
+                kfree(board_info);
+                return NULL;
+        }
+
+        if (!try_module_get(client->dev.driver->owner)) {
+                i2c_unregister_device(client);
+                client = NULL;
+        }
+
+        kfree(board_info);
+        return client;
+}
+EXPORT_SYMBOL_GPL(dvb_module_probe);
+
+void dvb_module_release(struct i2c_client *client)
+{
+        if (!client)
+                return;
+
+        module_put(client->dev.driver->owner);
+        i2c_unregister_device(client);
+}
+EXPORT_SYMBOL_GPL(dvb_module_release);
+#endif
+
 static int dvb_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
         struct dvb_device *dvbdev = dev_get_drvdata(dev);