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acea4e4458
read transfers Added standard mode for AXI I2C controller to enable read transfers of size more than 255 bytes. The driver selects standard mode in the following scenarios. 1. If a single message request comes from user space, requesting a read of more than 255 bytes 2. If a message set request comes from user space consisting of many messages and if any one of them is a read operation, irrespective of the size of transfer. (This is done because it is observed that repeated start operation is not happening in dynamic mode read as expected in a message set request from user space.) Signed-off-by: Raviteja Narayanam <raviteja.narayanam@xilinx.com> Signed-off-by: Manikanta Guntupalli <manikanta.guntupalli@amd.com> Acked-by: Michal Simek <michal.simek@amd.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>