Messages in this thread | | | Date | Tue, 4 Mar 2008 07:03:57 +0100 | From | Pierre Ossman <> | Subject | Re: Bugs in MMC [was: [Bug 10030] Suspend doesn't work when SD card is inserted] |
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On Mon, 3 Mar 2008 13:59:37 -0800 David Brownell <david-b@pacbell.net> wrote:
> > Card insert/remove events can be system wake events though. Which > makes that restriction impractical. > > I think hosts need to be able to call mmc_detect_change() as soon as > they see a stable signal. The MMC core can hold off handling that > for a while, if it needs to wait until the code walking the device > tree gets around to resuming that host. It's a lot more natural to > hold off such stuff one time there than in N host drivers; especially > since the MMC core already has such hold-off code. >
That actually sorts itself out as the MMC core reprobes on wakeup, but I see your point. Right now things will work peachy if the controllers just make sure to disable their card detection logic before telling the core to suspend.
Rgds -- -- Pierre Ossman
Linux kernel, MMC maintainer http://www.kernel.org PulseAudio, core developer http://pulseaudio.org rdesktop, core developer http://www.rdesktop.org
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