linux-kernel - Re: [PATCH 07/16] viafb: Add 1200x900 DCON/LCD panel modes for OLPC XO-1.5

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Message-ID: <20100418113930.1ba08ee3@bike.lwn.net>
Date:	Sun, 18 Apr 2010 11:39:30 -0600
From:	Jonathan Corbet <corbet@....net>
To:	Florian Tobias Schandinat <FlorianSchandinat@....de>
Cc:	linux-kernel@...r.kernel.org, Harald Welte <laforge@...monks.org>,
	JosephChan@....com.tw, ScottFang@...tech.com.cn,
	Deepak Saxena <dsaxena@...top.org>,
	linux-fbdev-devel@...ts.sourceforge.net
Subject: Re: [PATCH 07/16] viafb: Add 1200x900 DCON/LCD panel modes for OLPC
 XO-1.5

On Fri, 09 Apr 2010 23:27:30 +0200
Florian Tobias Schandinat <FlorianSchandinat@....de> wrote:

> What will happen if someone with no VX855 will try to enter 1200x900 
> mode? Probably the world won't be destroyed but I have a really ugly 
> feeling that the driver is not well prepared for this situation. 

OK, I'm certainly exposing my relative lack of understanding of
framebuffer issues (I'm here to add a camera driver, remember? :),
but...is this really something that older chipsets can't handle?  Or is
it just that nobody has had that size of panel before?

> Haven't 
> tested yet as I'm waiting for the official forward port but I think it 
> might be better to reschedule this patch for later or add some PLL 
> values that are supposed to work (using/executing the formulas in the 
> VIA open source X driver)

If it's really not acceptable, then it will stay out, but I would
rather get it merged.  I will leave it in the series for now; it can
come out later if need be.

Thanks,

jon
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