Messages in this thread | | | Subject | Re: [PATCH 2/2] mmc: fix mmc card disappearence on resume on ricoh mmc controllers | From | Maxim Levitsky <> | Date | Tue, 08 Jun 2010 11:57:46 +0300 |
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On Sun, 2010-06-06 at 19:22 -0400, Philip Langdale wrote: > On Mon, 7 Jun 2010 00:28:51 +0300, Maxim Levitsky > <maximlevitsky@gmail.com> wrote: > > The reason was that it takes time for controller to detect the card. > > So wait a bit for the card to appear. > > In worst case scenario, when you suspend the system with mmc card, > > and actually remove it, the resume will be delayed maximum by 2 seconds > > I suspect it's probably sending an SD id command to the card and then that > has to time out on MMC cards. > > Acked-by: Philip Langdale <philipl@overt.org>
Thanks!
Note that I spoke too soon about it being perfect While mmc card that stays in slot now works fine, a card that is inserted while system is asleep, is detected, but then controller becomes confused, so card doesn't work. A reinsert does help though. Overall I need to work around some unusual delays imposed by controller due to unusual card detection. I'll sort that out eventually (and hope not to bring much ugliness to sdhci{,-pci}.c
I think I update this patch to address both issues.
Best regards, Maxim Levitsky
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