On Tue, Dec 22, 2015 at 02:24:53PM +0100, Ludovic Desroches wrote: > Hi guys, > > I have recently added PM support for my driver but I don't have the > behavior I was expecting. I am wondering if I didn't do something wrong. > > I have implemented runtime_suspend in a very simple way, I call > sdhci_runtime_suspend_host() and I disable the clocks. It works pretty > well with the eMMC which is non removable but with a SD card... If I > have my SD card present on boot time, it is detected but > insertion/removal is not detected. > > Having a look to sdhci_runtime_suspend_host() internal, all the > interruptions are disabled expecting the card interrupt if it has been > set earlier. > > From my understanding, it means that if there is no activity on sdhci, > we will go to suspend and then we could wake up only on a software event > (or a sdio interrupt). How to manage card insertion/removal in this > case? My problem is so huge, I have probably missed something... > > Moreover, to avoid system PM, I have used pm_runtime_force_suspend but I > could not wake up on card insertion/removal too. Do I have to use system > PM if I want to manage this case? > > Thanks for your advices. > > Regards > > Ludovic Any feedback? Ludovic -- 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
