linux-kernel - Re: [Q] How to tell we're using the KMS (during suspend/resume) outside the graphics driver

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Message-ID: <20100310205618.GA28628@srcf.ucam.org>
Date:	Wed, 10 Mar 2010 20:56:18 +0000
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Pauli Nieminen <suokkos@...il.com>
Cc:	Paul Mundt <lethal@...ux-sh.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Luca Tettamanti <kronos.it@...il.com>,
	Linux PCI <linux-pci@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	dri-devel@...ts.sourceforge.net
Subject: Re: [Q] How to tell we're using the KMS (during suspend/resume)
	outside the graphics driver

As far as the ACPI video driver goes, acpi_get_physical_pci_device() 
will give you something to work with. For the console-switching case, I 
think the most reasonable plan is probably to add a flag to the console 
drivers to indicate whether or not they support reprogramming the 
hardware themselves, and then walk all active console drivers. There'd 
need to be a way for fb drivers to tell fbcon that they can handle it.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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