linux-kernel - Re: [RFC/PATCH] platform_bus: allow custom extensions to system PM methods

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Date:	Wed, 17 Mar 2010 16:44:14 -0700
From:	Greg KH <gregkh@...e.de>
To:	Kevin Hilman <khilman@...prootsystems.com>
Cc:	linux-kernel@...r.kernel.org, linux-pm@...ts.linux-foundation.org,
	Magnus Damm <damm@...nsource.se>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Dmitry Torokhov <dtor@...l.ru>,
	Eric Miao <eric.y.miao@...il.com>
Subject: Re: [RFC/PATCH] platform_bus: allow custom extensions to system PM
 methods

On Wed, Mar 17, 2010 at 04:18:15PM -0700, Kevin Hilman wrote:
> When runtime PM for platform_bus was added, it allowed for platforms
> to customize the runtime PM methods since they are defined as weak
> symbols.
> 
> This patch allows platforms to also extend the system PM methods with
> custom hooks so runtime PM and system PM extensions can be managed
> together by custom platform-specific code.

Wow, that's scary, I didn't realize that was done for the runtime stuff.

What would you be replacing these functions with for your platform that
would require it to be in arch-specific code?

thanks,

greg k-h
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