linux-kernel - Re: ahci: sata hotplug doesn't work after suspend

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Date:	Tue, 28 Feb 2012 19:36:01 +0800
From:	Lin Ming <ming.m.lin@...el.com>
To:	Jiri Slaby <jslaby@...e.cz>
Cc:	Holger Macht <holger@...ac.de>, Jiri Slaby <jirislaby@...il.com>,
	Jeff Garzik <jgarzik@...ox.com>, linux-ide@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: ahci: sata hotplug doesn't work after suspend

On Mon, Feb 27, 2012 at 4:48 PM, Jiri Slaby <jslaby@...e.cz> wrote:
> On 02/27/2012 02:05 AM, Lin Ming wrote:
>>>
>>> Could you please try below patch?
>>>
>>> And please also show the debug info.
>>> dmesg |grep "DEBUG: port"
>>
>>
>> Hi Jiri,
>>
>> Will you get a chance to test this patch?
>
>
> Yes, yesterday I booted a kernel with that patch, today I resumed from
> suspend. It works fine.

Jeff,

What do you think about this patch?
Need to add similar hotplugable port check for other controllers too.

Regards,
Lin Ming

>
> [    3.544423] DEBUG: port 0, PORT_CMD=0x40006
> [    3.544445] DEBUG: port 1, PORT_CMD=0x40006
> [    3.544467] DEBUG: port 2, PORT_CMD=0x40006
> [    3.544489] DEBUG: port 3, PORT_CMD=0x40006
> [    3.544511] DEBUG: port 4, PORT_CMD=0x6
> [    3.544532] DEBUG: port 5, PORT_CMD=0x6
> [ 1724.132173] DEBUG: port 0, PORT_CMD=0x40006
> [ 1724.132184] DEBUG: port 1, PORT_CMD=0x40006
> [ 1724.132194] DEBUG: port 2, PORT_CMD=0x40006
> [ 1724.132204] DEBUG: port 3, PORT_CMD=0x40006
> [ 1724.132214] DEBUG: port 4, PORT_CMD=0x6
> [ 1724.132222] DEBUG: port 5, PORT_CMD=0x6
>
>
> thanks,
> --
> js
> suse labs
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