From: Ulf Hansson <ulf.hansson@stericsson.com>
To: Subhash Jadavani <subhashj@codeaurora.org>
Cc: "linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
'Chris Ball' <cjb@laptop.org>,
Per FORLIN <per.forlin@stericsson.com>,
Johan RUDHOLM <johan.rudholm@stericsson.com>,
'Lee Jones' <lee.jones@linaro.org>
Subject: Re: [PATCH] mmc: core: Add option to prevent eMMC sleep command
Date: Wed, 14 Dec 2011 16:34:19 +0100 [thread overview]
Message-ID: <4EE8C1FB.5080205@stericsson.com> (raw)
In-Reply-To: <000601ccba74$afdb0180$0f910480$@org>
Subhash Jadavani wrote:
> Why is this patch needed? Do you see any issue with eMMC sleep on particular
> cards?
>
> Regards,
> Subhash
Suppose the eMMC is put in sleep state when doing suspend, at that point
the kernel crashes. The kernel crash is supposed to be dumped to the
same eMMC by some other software than the kernel itself. But this
software do not have support for waking up the eMMC from sleep and is
thus not able to store the dump.
Br
Ulf Hansson
next prev parent reply other threads:[~2011-12-14 15:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-14 15:20 [PATCH] mmc: core: Add option to prevent eMMC sleep command Ulf Hansson
2011-12-14 15:25 ` Subhash Jadavani
2011-12-14 15:34 ` Ulf Hansson [this message]
2011-12-14 15:38 ` Subhash Jadavani
2011-12-14 16:48 ` Ulf Hansson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4EE8C1FB.5080205@stericsson.com \
--to=ulf.hansson@stericsson.com \
--cc=cjb@laptop.org \
--cc=johan.rudholm@stericsson.com \
--cc=lee.jones@linaro.org \
--cc=linux-mmc@vger.kernel.org \
--cc=per.forlin@stericsson.com \
--cc=subhashj@codeaurora.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.