[media] dvb_usb_v2: move I2C adapter code to different file

No worth to keep it on own file as it is only 30 LOC.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/dvb-usb/dvb_usb_i2c.c

-/* dvb-usb-i2c.c is part of the DVB USB library.
- *
- * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
- * see dvb-usb-init.c for copyright information.
- *
- * This file contains functions for (de-)initializing an I2C adapter.
- */
-#include "dvb_usb_common.h"
-
-int dvb_usb_i2c_init(struct dvb_usb_device *d)
-{
-	int ret = 0;
-
-	if (!d->props.i2c_algo)
-		return 0;
-
-	strlcpy(d->i2c_adap.name, d->name, sizeof(d->i2c_adap.name));
-	d->i2c_adap.algo      = d->props.i2c_algo;
-	d->i2c_adap.algo_data = NULL;
-	d->i2c_adap.dev.parent = &d->udev->dev;
-
-	i2c_set_adapdata(&d->i2c_adap, d);
-
-	ret = i2c_add_adapter(&d->i2c_adap);
-	if (ret < 0)
-		pr_err("%s: could not add i2c adapter", KBUILD_MODNAME);
-
-	d->state |= DVB_USB_STATE_I2C;
-
-	return ret;
-}
-
-int dvb_usb_i2c_exit(struct dvb_usb_device *d)
-{
-	if (d->state & DVB_USB_STATE_I2C)
-		i2c_del_adapter(&d->i2c_adap);
-	d->state &= ~DVB_USB_STATE_I2C;
-	return 0;
-}

drivers/media/dvb/dvb-usb/dvb_usb_init.c

@@ -68,6 +68,37 @@ int dvb_usb_download_firmware(struct dvb_usb_device *d)
 	return ret;
 }
 
+int dvb_usb_i2c_init(struct dvb_usb_device *d)
+{
+	int ret = 0;
+
+	if (!d->props.i2c_algo)
+		return 0;
+
+	strlcpy(d->i2c_adap.name, d->name, sizeof(d->i2c_adap.name));
+	d->i2c_adap.algo = d->props.i2c_algo;
+	d->i2c_adap.algo_data = NULL;
+	d->i2c_adap.dev.parent = &d->udev->dev;
+
+	i2c_set_adapdata(&d->i2c_adap, d);
+
+	ret = i2c_add_adapter(&d->i2c_adap);
+	if (ret < 0)
+		pr_err("%s: could not add i2c adapter", KBUILD_MODNAME);
+
+	d->state |= DVB_USB_STATE_I2C;
+
+	return ret;
+}
+
+int dvb_usb_i2c_exit(struct dvb_usb_device *d)
+{
+	if (d->state & DVB_USB_STATE_I2C)
+		i2c_del_adapter(&d->i2c_adap);
+	d->state &= ~DVB_USB_STATE_I2C;
+	return 0;
+}
+
 static int dvb_usb_adapter_init(struct dvb_usb_device *d)
 {
 	struct dvb_usb_adapter *adap;