Hi Marc-AndrÃ, On Tue, May 24 2011, Marc-Andrà HÃbert wrote: > We are using a OMAPL108 with 2.6.33 and noticed that the mmc clock > signal stays active when idle. This doesn't seem very power efficient > and we wondered if there was a reason for this. Before trying to fix > this on our side I had a few questions regarding this: > -Is this behavior the same in more recent versions? > -Was this designed to be this way? > -Would stopping the clock be a responsibility of the core (set_ios) or > the host controller (between requests)? Check out CONFIG_MMC_CLKGATE=y, introduced in 2.6.38. - Chris. -- Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/> One Laptop Per Child -- 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
