2011/9/2 NamJae Jeon <linkinjeon@xxxxxxxxx>: > We should consider DMA situation. As I know, host controller can not > rise timeout interrupt in write not read in DMA status. Which host controller are you talking about? > host > controller can just know whether card is finish to program to use busy > line. If unstable card is holding busy line while writing using DMA, > hang problem will happen by wait_for_completion. > so I think that mmc driver need some exception to avoid this problem. Yes you can add a timeout in the driver itself. Just set up a common timer, no big deal. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
