> >> BTW, I'm seeing "atmel_mxt_ts 0-004c: Warning: Info CRC error - device=0xF436DC file=0x000000" whithout making any modifications to the original patch as well and it shall not happen, hence there is bug somewhere. Probably FIFO triggers are still not set up correctly... ? > >> > >> > > In snippet you sent, I see you are forcing dma_burst to 1 always which is what set for fifo trigger levels as well and also you are forcing dma all the time. > > So always it will be 1 word dma burst and 1 word trigger level and that should not be an issue. > > > > I reverted that snippet, this log is collected with the yours original patch. > >From atmel driver, looks like this warning is from maxt_update_cfg and due to CRC mismatch and above values shows read data CRC is 0Xf436dc which is compared against info_crc of all 0's Info_crc is based on raw config file and somehow its all 0's. this is not based on data read thru i2c. data->info_crc computed on data read is 0Xf436dc This warning is not related to I2C transfer
