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From: Maxim Levitsky <maximlevitsky@gmail.com>
To: Philip Langdale <philipl@overt.org>
Cc: linux-mmc@vger.kernel.org, linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/2] mmc: fix mmc card disappearence on resume on ricoh mmc controllers
Date: Tue, 08 Jun 2010 11:57:46 +0300	[thread overview]
Message-ID: <1275987466.30596.13.camel@dell16> (raw)
In-Reply-To: <648846745cc9a3a023fa12f306caabf6@localhost>

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


  reply	other threads:[~2010-06-08  8:57 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-02 18:56 strange problem with ricoh-mmc Maxim Levitsky
2010-06-02 19:54 ` Philip Langdale
2010-06-02 20:19   ` Maxim Levitsky
2010-06-02 20:42     ` Philip Langdale
2010-06-02 22:03       ` Maxim Levitsky
2010-06-03  1:16         ` [PATCH] mmc: make sdhci work with ricoh mmc controller Maxim Levitsky
2010-06-03 16:11           ` Philip Langdale
2010-06-03 16:31             ` Maxim Levitsky
2010-06-03 16:39               ` Philip Langdale
2010-06-03 17:05                 ` Philip Langdale
2010-06-03 17:35                   ` Maxim Levitsky
2010-06-04  4:42                     ` Philip Langdale
2010-06-04 10:07                       ` Maxim Levitsky
2010-06-04 15:05                         ` Philip Langdale
2010-06-04 15:33                           ` Maxim Levitsky
2010-06-06 21:24                             ` Maxim Levitsky
2010-06-06 21:28                               ` [PATCH 1/2] " Maxim Levitsky
2010-06-06 23:11                                 ` Philip Langdale
2010-06-07  0:37                                   ` Maxim Levitsky
2010-06-07  1:41                                     ` Philip Langdale
2010-06-11 19:08                                       ` [PATCH v3] " Maxim Levitsky
2010-06-11 19:15                                         ` [PATCH v4] " maximlevitsky
2010-06-13 11:29                                           ` Maxim Levitsky
2010-06-13 16:06                                           ` Philip Langdale
2010-06-06 21:28                               ` [PATCH 2/2] mmc: fix mmc card disappearence on resume on ricoh mmc controllers Maxim Levitsky
2010-06-06 23:22                                 ` Philip Langdale
2010-06-08  8:57                                   ` Maxim Levitsky [this message]
2010-06-06 23:23                                 ` Chris Ball
2010-06-07  0:33                                   ` Maxim Levitsky
2010-06-07  5:47                                     ` Chris Ball
2010-06-08  8:52                                       ` Maxim Levitsky
2010-06-03  1:22         ` strange problem with ricoh-mmc Maxim Levitsky

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