On 21 July 2011 03:34, Zhangfei Gao <zhangfei.gao@xxxxxxxxxxx> wrote: > sdio client may be required power on/off dynamically. > With regulator vsdio, sdio client power on/off could be executed by mmc_power_up/down I think you can/should do this with vmmc. When the device gets powered down (e.g. in runtime suspend), the voltage should be cut, so it should be possible to use the existing regulator. I also looked at doing this before, when it looked like we would have to manipulate a GPIO reset line for SD8686. I decided that the current vmmc implementation in sdhci wasn't quite complete enough, but it wouldn't be much effort to correct this. Daniel -- 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