Hi Sricharan, 

On Thu, 2015-07-09 at 08:55 +0530, Sricharan R wrote:

 static int qup_i2c_read_one(struct qup_i2c_dev *qup, struct i2c_msg *msg)
 {
-       unsigned long left;
-       int ret;
+       int ret = 0;

-       qup->msg = msg;
-       qup->pos  = 0;
+       /*
+               * The QUP block will issue a NACK and STOP on the bus when reaching
+               * the end of the read, the length of the read is specified as one byte
+               * which limits the possible read to 256 (QUP_READ_LIMIT) bytes.
+               */
+       if (msg->len > QUP_READ_LIMIT) {
+               dev_err(qup->dev, "HW not capable of reads over %d bytes\n",
+                       QUP_READ_LIMIT);
+               return -EINVAL;
+       }

This should be removed. Please see qup_i2c_quirks.

Regards,
Ivan