From: Anton Vorontsov <avorontsov@ru.mvista.com>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: Scott Wood <scottwood@freescale.com>,
linuxppc-dev@ozlabs.org, Timur Tabi <timur@freescale.com>
Subject: Re: [PATCH 5/7] powerpc/85xx: Add power management support for MPC85xxMDS boards
Date: Thu, 5 Nov 2009 17:08:38 +0300 [thread overview]
Message-ID: <20091105140838.GA17171@oksana.dev.rtsoft.ru> (raw)
In-Reply-To: <AFE1C29A-88D4-4A1D-B7AD-A797CCC855D3@kernel.crashing.org>
On Thu, Nov 05, 2009 at 08:02:44AM -0600, Kumar Gala wrote:
[...]
> >diff --git a/arch/powerpc/boot/dts/mpc8568mds.dts b/arch/powerpc/
> >boot/dts/mpc8568mds.dts
> >index 00c2bbd..6d892ba 100644
> >--- a/arch/powerpc/boot/dts/mpc8568mds.dts
> >+++ b/arch/powerpc/boot/dts/mpc8568mds.dts
> >@@ -40,6 +40,8 @@
> > i-cache-line-size = <32>; // 32 bytes
> > d-cache-size = <0x8000>; // L1, 32K
> > i-cache-size = <0x8000>; // L1, 32K
> >+ sleep = <&pmc 0x00008000 // core
> >+ &pmc 0x00004000>; // timebase
> >
> >Just so I'm clear this is the devdisr bit position?
>
> Also where in the code do we use this? I'm not seeing it.
We don't use it (yet). The per-device power management is not yet
implemented. It is relatively easy to do on 83xx, but on 85xx there
is a restriction: we can't re-enable the device after we disable it,
i.e. POR sequence is needed. Though, we may want to disable all
'unused' (say echo 1 > /sys/devices/.../permanently_disable) to save
some power.
Thanks,
--
Anton Vorontsov
email: cbouatmailru@gmail.com
irc://irc.freenode.net/bd2
next prev parent reply other threads:[~2009-11-05 14:08 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-15 21:43 [PATCH v4 0/7] Suspend/resume support for some 83xx/85xx/86xx boards Anton Vorontsov
2009-09-15 21:43 ` [PATCH 1/7] powerpc/qe: Make qe_reset() code path safe for repeated invocation Anton Vorontsov
2009-11-05 13:15 ` Kumar Gala
2009-09-15 21:43 ` [PATCH 2/7] powerpc/qe: QE also shuts down on MPC8568 Anton Vorontsov
2009-11-05 13:15 ` Kumar Gala
2009-09-15 21:43 ` [PATCH 3/7] powerpc/qe: Implement QE driver for handling resume on MPC85xx Anton Vorontsov
2009-11-05 14:11 ` Kumar Gala
2009-09-15 21:43 ` [PATCH 4/7] powerpc/85xx/86xx: Add suspend/resume support Anton Vorontsov
2009-11-05 14:11 ` Kumar Gala
2009-09-15 21:43 ` [PATCH 5/7] powerpc/85xx: Add power management support for MPC85xxMDS boards Anton Vorontsov
2009-11-05 13:58 ` Kumar Gala
2009-11-05 14:02 ` Kumar Gala
2009-11-05 14:08 ` Anton Vorontsov [this message]
2009-11-05 14:04 ` Anton Vorontsov
2009-11-05 14:06 ` Kumar Gala
2009-11-05 16:53 ` Scott Wood
2009-11-05 14:11 ` Kumar Gala
2009-09-15 21:44 ` [PATCH 6/7] powerpc/86xx: Add power management support for MPC8610HPCD boards Anton Vorontsov
2009-11-05 14:11 ` Kumar Gala
2009-09-15 21:44 ` [PATCH 7/7] powerpc/83xx: Add power management support for MPC83xx QE boards Anton Vorontsov
2009-11-05 14:11 ` Kumar Gala
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