V4L/DVB: v4l: remove obsolete include/media/v4l2-i2c-drv.h file

The include/media/v4l2-i2c-drv.h header was used to be able to compile drivers
in the v4l-dvb hg repository for legacy kernels (mainly pre-2.6.26) without
creating an #ifdef mess.

The hg repository dropped support for kernels < 2.6.26 so we can remove this
header. All i2c drivers that used it have now been converted to use proper
i2c code. The header was a hack, but it did its job well. So I would call
this an honorable removal. :-)
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

include/media/v4l2-i2c-drv.h

-/*
- * v4l2-i2c-drv.h - contains I2C handling code that's identical for
- *		    all V4L2 I2C drivers. Use this header if the
- *		    I2C driver is only used by drivers converted
- *		    to the bus-based I2C API.
- *
- * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/* NOTE: the full version of this header is in the v4l-dvb repository
- * and allows v4l i2c drivers to be compiled on pre-2.6.26 kernels.
- * The version of this header as it appears in the kernel is a stripped
- * version (without all the backwards compatibility stuff) and so it
- * looks a bit odd.
- *
- * If you look at the full version then you will understand the reason
- * for introducing this header since you really don't want to have all
- * the tricky backwards compatibility code in each and every i2c driver.
- *
- * If the i2c driver will never be compiled for pre-2.6.26 kernels, then
- * DO NOT USE this header! Just write it as a regular i2c driver.
- */
-
-#ifndef __V4L2_I2C_DRV_H__
-#define __V4L2_I2C_DRV_H__
-
-#include <media/v4l2-common.h>
-
-struct v4l2_i2c_driver_data {
-	const char * const name;
-	int (*command)(struct i2c_client *client, unsigned int cmd, void *arg);
-	int (*probe)(struct i2c_client *client, const struct i2c_device_id *id);
-	int (*remove)(struct i2c_client *client);
-	int (*suspend)(struct i2c_client *client, pm_message_t state);
-	int (*resume)(struct i2c_client *client);
-	const struct i2c_device_id *id_table;
-};
-
-static struct v4l2_i2c_driver_data v4l2_i2c_data;
-static struct i2c_driver v4l2_i2c_driver;
-
-
-/* Bus-based I2C implementation for kernels >= 2.6.26 */
-
-static int __init v4l2_i2c_drv_init(void)
-{
-	v4l2_i2c_driver.driver.name = v4l2_i2c_data.name;
-	v4l2_i2c_driver.command = v4l2_i2c_data.command;
-	v4l2_i2c_driver.probe = v4l2_i2c_data.probe;
-	v4l2_i2c_driver.remove = v4l2_i2c_data.remove;
-	v4l2_i2c_driver.suspend = v4l2_i2c_data.suspend;
-	v4l2_i2c_driver.resume = v4l2_i2c_data.resume;
-	v4l2_i2c_driver.id_table = v4l2_i2c_data.id_table;
-	return i2c_add_driver(&v4l2_i2c_driver);
-}
-
-
-static void __exit v4l2_i2c_drv_cleanup(void)
-{
-	i2c_del_driver(&v4l2_i2c_driver);
-}
-
-module_init(v4l2_i2c_drv_init);
-module_exit(v4l2_i2c_drv_cleanup);
-
-#endif /* __V4L2_I2C_DRV_H__ */