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From: daniel@caiaq.de (Daniel Mack)
To: linux-arm-kernel@lists.infradead.org
Subject: What's inside the pxa tree for this merge window
Date: Thu, 10 Sep 2009 14:44:01 +0200	[thread overview]
Message-ID: <20090910124401.GW9410@buzzloop.caiaq.de> (raw)
In-Reply-To: <f17812d70909100535r36b62ad5r2c32e2dcecba0c93@mail.gmail.com>

On Thu, Sep 10, 2009 at 08:35:51PM +0800, Eric Miao wrote:
> On Thu, Sep 10, 2009 at 8:32 PM, Daniel Mack <daniel@caiaq.de> wrote:
> > Hmm, I'd say you don't want fb.fix.accel set unless the driver is
> > enabled, right?
> >
> 
> I'm not sure if it can be set anyway without the driver being
> built.

DirectFB userspace applications take that value to decide whether to
enable the acceleration driver or go for software fallbacks. If that
field is set, the kernel is expected to come along with the driver
interface.

Hence, it should really only be set if the driver is enabled, otherwise
the userspace logic breaks.

> I mean - I don't want Kconfig option to cross modules.

I agree, and it would be even better to only set that field in case the
driver has actually been probed (and not just enabled in the kernel
config). But I see no clean way to do that - the gcu driver has no
access to the framebuffer driver and its data structs either.

Daniel

  reply	other threads:[~2009-09-10 12:44 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-10 11:46 What's inside the pxa tree for this merge window Eric Miao
2009-09-10 11:54 ` Daniel Mack
2009-09-10 12:15   ` Guennadi Liakhovetski
2009-09-10 12:23   ` Eric Miao
2009-09-10 12:32     ` Daniel Mack
2009-09-10 12:35       ` Eric Miao
2009-09-10 12:44         ` Daniel Mack [this message]
2009-09-10 13:05           ` Guennadi Liakhovetski
2009-09-10 13:09             ` Daniel Mack
2009-09-14 11:03 ` Guennadi Liakhovetski
2009-09-14 11:11   ` Russell King - ARM Linux
2009-09-15  6:30     ` Guennadi Liakhovetski
2009-09-15  6:50       ` Eric Miao
2009-09-15  7:34         ` Russell King - ARM Linux
2009-09-15  7:55           ` Guennadi Liakhovetski
2009-09-18  6:43 ` Matej Kenda
2009-09-18  6:47   ` Eric Miao
2009-09-18  7:45   ` Russell King - ARM Linux
2009-09-21 19:19     ` Guennadi Liakhovetski
2009-09-21 20:09       ` Russell King - ARM Linux
2009-09-21 20:32         ` Jamie Lokier
2009-09-30 12:09         ` arm tree in broken state (was Re: What's inside the pxa tree for this merge window) Pavel Machek
2009-09-30 12:16           ` Guennadi Liakhovetski

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