On Mon, Dec 06, 2010 at 05:57:22PM +0000, Daniel Drake wrote: > Hi, > > I'm working on getting runtime pm working on the XO-1.5 laptop > (sdhci-pci) in case it is related to some other power-related issues > we have been having. > > Right now, when runtime is enabled, the card cannot be brought back > online again after it has been powered off. > > I've dug down and I think that runtime PM is doing basically nothing. > i.e. when the system decides to runtime-suspend my SD card, nothing > actually happens to the SD card. It remains fully powered and > untouched. I'm basing this assumption on mmc_power_save_host() which > relies entirely on host->bus_ops->power_save() doing the actual > power-down work. On sdhci this method does not exist. you might want to add the linux-pm list to this. -- Ben Q: What's a light-year? A: One-third less calories than a regular year. -- 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
