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From: Greg KH <gregkh@linuxfoundation.org>
To: Mayuresh Kulkarni <mkulkarni@nvidia.com>
Cc: "linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
	"len.brown@intel.com" <len.brown@intel.com>,
	"pavel@ucw.cz" <pavel@ucw.cz>, "rjw@sisk.pl" <rjw@sisk.pl>,
	Peter De Schrijver <pdeschrijver@nvidia.com>
Subject: Re: [PATCH] PM/domains: add delayed power off capability
Date: Tue, 12 Mar 2013 08:19:01 -0700	[thread overview]
Message-ID: <20130312151901.GA18438@kroah.com> (raw)
In-Reply-To: <513F4208.4040207@nvidia.com>

On Tue, Mar 12, 2013 at 08:26:08PM +0530, Mayuresh Kulkarni wrote:
> On Tuesday 12 March 2013 07:19 PM, Greg KH wrote:
> >On Tue, Mar 12, 2013 at 02:19:19PM +0530, Mayuresh Kulkarni wrote:
> >>- this commit adds a capability to delay the powering off
> >>of the domain
> >
> >Why?
> >
> 
> - As I mentioned below (sorry for mentioning below rather than at
> start), powering off a domain means the context save needs to be
> done && it needs to be restored during power on.

<good stuff snipped>

All of this should be in the changelog section of the patch, please,
when you resend this, add it there.

> - The downstream kernel has a graphics-host (host1x) driver which
> has a home grown power management framework called ACM
> (auto-clock-management). We implement both delayed clock and power
> partition off functionality in it.

We should wait for this driver to be submitted and accepted before
we can add these new api hooks.  When is that going to happen?

thanks,

greg k-h

  reply	other threads:[~2013-03-12 15:18 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-12  8:49 [PATCH] PM/domains: add delayed power off capability Mayuresh Kulkarni
2013-03-12 13:49 ` Greg KH
2013-03-12 14:56   ` Mayuresh Kulkarni
2013-03-12 15:19     ` Greg KH [this message]
2013-03-12 15:24       ` Peter De Schrijver
2013-03-12 15:44         ` Greg KH
2013-03-13 19:27     ` Kevin Hilman
2013-03-14  8:59       ` Peter De Schrijver
2013-03-14 14:12         ` Mayuresh Kulkarni
2013-03-15 18:04           ` Kevin Hilman
2013-03-18 10:07             ` Peter De Schrijver
2013-03-22 16:58               ` Kevin Hilman
2013-03-14 14:59         ` Alan Stern
  -- strict thread matches above, loose matches on Subject: below --
2013-03-11 15:50 Mayuresh Kulkarni
     [not found] ` <1363017028-16164-1-git-send-email-mkulkarni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-03-11 17:47   ` Stephen Warren
2013-03-12 14:29   ` Peter De Schrijver

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