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5e3cfc6c4e
When FIFOs are available and enabled, the driver now configures the Atmel eXtended DMA Controller to perform word accesses instead of byte accesses when possible. The actual access width depends on the size of the buffer to transmit. To enable FIFO support the "atmel,fifo-size" property must be set properly in the I2C controller node of the device tree. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>