On Mi, 2015-07-29 at 17:03 +0800, Haibo Chen wrote: > tuning-step is the delay cell steps in tuning procedure. The default > value of tuning-step is 1. For imx6 series usdhc, tuning procedure can > be passed when the tuning-step value is 1. But imx7d usdhc need the > tuning-step value as 2, otherwise it can't pass the tuning procedure. > > So this patch add the tuning-step setting in driver, so that user can > set the tuning-step value in dts. >From your description, the correct tuning-step value only depends on the SoC. Why not derive it from the compatible string? Regards, Jan Lübbe -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | -- 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
