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From: Ohad Ben-Cohen <ohad@wizery.com>
To: zhangfei gao <zhangfei.gao@gmail.com>
Cc: Bing Zhao <bzhao@marvell.com>, Daniel Drake <dsd@laptop.org>,
	"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
	Mike Rapoport <mike@compulab.co.il>,
	Zhangfei Gao <zgao6@marvell.com>, Benson Chau <bchau@marvell.com>
Subject: Re: MMC runtime PM patches break libertas probe
Date: Sat, 11 Jun 2011 12:03:27 +0300	[thread overview]
Message-ID: <BANLkTi=BjOrT-Arg+KzYpFbfk6vAO1sKHQ@mail.gmail.com> (raw)
In-Reply-To: <BANLkTinyU5x5QFbDs2bqbZ0ebpRhe+aSSw@mail.gmail.com>

On Sat, Jun 11, 2011 at 5:33 AM, zhangfei gao <zhangfei.gao@gmail.com> wrote:
> If you power down and up the device, then IO reset is not needed and
> 8686 can process host init sequence correctly.

Thanks, that's what I thought.

Daniel, this ultimately means that whenever sending a reset is
required to re-init the 8686, we can surely say that the chip wasn't
really powered off beforehand, and that something went wrong in the
software, leading us to think the chip is powered off when it is
really not.

But I think we also demonstrated this with the simple
insmod/rmmod/insmod scenario, where every insmod successfully
re-initialized the chip without sending an sdio reset.

Thanks,
Ohad.

      reply	other threads:[~2011-06-11  9:03 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-31 14:29 MMC runtime PM patches break libertas probe Daniel Drake
2010-10-31 14:42 ` Ohad Ben-Cohen
2010-10-31 14:55   ` Daniel Drake
2010-10-31 15:08     ` Ohad Ben-Cohen
2010-10-31 15:10       ` Daniel Drake
2010-10-31 15:16         ` Ohad Ben-Cohen
2010-10-31 15:21           ` Daniel Drake
2010-10-31 15:21           ` Daniel Drake
2010-10-31 15:27             ` Ohad Ben-Cohen
2010-10-31 15:57               ` Daniel Drake
2010-10-31 16:16                 ` Ohad Ben-Cohen
2010-10-31 16:24                   ` Daniel Drake
2010-10-31 19:06                     ` Ohad Ben-Cohen
2010-11-01  8:27                       ` Ohad Ben-Cohen
2010-11-06 21:19                         ` Daniel Drake
2010-11-07  1:48                           ` Nicolas Pitre
2010-11-07 10:19                             ` Daniel Drake
2010-11-07 15:12                               ` Nicolas Pitre
2010-11-07 10:42                           ` Ohad Ben-Cohen
2010-11-07 10:51                             ` Daniel Drake
2010-11-07 13:17                               ` Ohad Ben-Cohen
2010-11-16 13:22                         ` Ohad Ben-Cohen
2010-11-16 14:29                           ` Daniel Drake
2010-11-16 14:49                             ` Ohad Ben-Cohen
2010-11-17  6:46                               ` Mike Rapoport
2010-11-17  7:29                                 ` Ohad Ben-Cohen
2010-11-17 14:54                                   ` Nicolas Pitre
2010-11-16 17:17                           ` Arnd Hannemann
2010-11-16 20:58                             ` Ohad Ben-Cohen
2010-11-16 21:16                               ` Arnd Hannemann
2010-11-16 22:26                                 ` Ohad Ben-Cohen
2011-05-29 16:21                       ` Daniel Drake
2011-05-30  6:52                         ` Ohad Ben-Cohen
2011-05-30  7:01                           ` Daniel Drake
2011-05-30  7:32                             ` Ohad Ben-Cohen
2011-05-30 11:04                               ` zhangfei gao
2011-05-30 11:16                                 ` Ohad Ben-Cohen
2011-06-02  8:39                                   ` Bing Zhao
2011-06-02 18:25                                     ` Ohad Ben-Cohen
2011-06-03 22:28                                       ` Bing Zhao
2011-06-03 22:52                                         ` Ohad Ben-Cohen
2011-06-07 14:34                                           ` Arnd Hannemann
2011-06-07 14:45                                             ` Ohad Ben-Cohen
2011-06-08 14:34                                           ` Ohad Ben-Cohen
2011-06-10  2:02                                             ` zhangfei gao
2011-06-10  4:28                                               ` Ohad Ben-Cohen
2011-06-11  2:33                                                 ` zhangfei gao
2011-06-11  9:03                                                   ` Ohad Ben-Cohen [this message]

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