From: Pavel Machek <pavel@ucw.cz>
To: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: ordering of suspend/resume for devices. any clues, anyone?
Date: Wed, 21 Dec 2005 11:21:09 +0100 [thread overview]
Message-ID: <20051221102109.GB1735@elf.ucw.cz> (raw)
In-Reply-To: <20051215143124.GD14978@lkcl.net>
Hi!
> [hi, please kindly cc me direct as i am deliberately subscribed with
> settings to not receive posts from this list, but if that is inconvenient
> for you to cc me, don't worry i can always look up the archives
> to keep track of replies, thank you.]
>
> http://handhelds.org/moin/moin.cgi/BlueAngel
>
> works.
>
> am seeking some advice regarding power management - specifically
> the ordering of devices "resume" functions being called.
>
> we have an LCD, and an ATI chip. switching on the LCD powers up
> the ATI chip.
>
> unfortunately, resume calls the ATI device initialisation
> _before_ the LCD resume initialisation. the ATI chip's
> initialisation fails - naturally - because it's not even
> powered up.
I'd say "make LCD system/platform device". That will init it first,
shut it down last.
Pavel
--
Thanks, Sharp!
next prev parent reply other threads:[~2005-12-21 10:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-15 14:31 Luke Kenneth Casson Leighton
2005-12-15 18:37 ` Greg KH
2005-12-15 19:47 ` Luke Kenneth Casson Leighton
2005-12-21 10:21 ` Pavel Machek [this message]
2005-12-21 22:49 ` Luke Kenneth Casson Leighton
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