drivers/staging/media/atomisp/i2c/imx/otp.c

   1 /*
   2  * Copyright (c) 2013 Intel Corporation. All Rights Reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License version
   6  * 2 as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  16  * 02110-1301, USA.
  17  *
  18  */
  19 #include <linux/device.h>
  20 #include <linux/errno.h>
  21 #include <linux/i2c.h>
  22 #include <linux/kernel.h>
  23 #include <linux/mm.h>
  24 #include <linux/string.h>
  25 #include <linux/types.h>
  26 #include <media/v4l2-device.h>
  27
  28 void *dummy_otp_read(struct v4l2_subdev *sd, u8 dev_addr,
  29         u32 start_addr, u32 size)
  30 {
  31         struct i2c_client *client = v4l2_get_subdevdata(sd);
  32         u8 *buf;
  33
  34         buf = devm_kzalloc(&client->dev, size, GFP_KERNEL);
  35         if (!buf)
  36                 return ERR_PTR(-ENOMEM);
  37
  38         return buf;
  39 }