On Fri, Jul 22, 2011 at 2:50 PM, Daniel Drake <dsd@xxxxxxxxxx> wrote: > 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. Have considered re-use vmmc before, Consider dynamically power control only required for sdio, so use vsdio to exclude potential issue to sd/mmc. Anyway, will try re-use vmmc. > > 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 > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > -- 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
