于 2013年09月16日 18:19, Mark Brown 写道: > I would expect that most controllers would look just the same as they do > now except for the additional ability to do quad transfers - it'd just > get told that some transfers should use more data lines. The SPI is about the byte streams, but the dummy may be not a byte, the dummy maybe just 4bit. It is interesting to handle the dummy issue for the future's SPI controller. thanks Huang Shijie -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html