linux-kernel - Re: [PATCH] Revert "staging: sm7xxfb: remove driver"

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Message-ID: <20141122070202.GB4490@sudip-PC>
Date:	Sat, 22 Nov 2014 12:32:02 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Ben Hutchings <ben@...adent.org.uk>,
	devel@...verdev.osuosl.org,
	Teddy Wang <teddy.wang@...iconmotion.com.cn>,
	Markos Chandras <Markos.Chandras@...tec.com>
Subject: Re: [PATCH] Revert "staging: sm7xxfb: remove driver"

On Thu, Nov 20, 2014 at 03:23:29PM -0800, Greg Kroah-Hartman wrote:
> On Thu, Nov 20, 2014 at 05:09:25PM -0500, Steven Rostedt wrote:
> > 
> > Someone reported a bug in the function graph tracer for MIPS. As I'm
> > still waiting on my USB serial for my Imagination MIPS board, I decided
> > to bring my Lemote Yeeloong laptop back up to the latest kernel. This
> > is where I noticed that the screen no longer displays anything.
> > 
> > I ran a bisect, which came across a staging commit that removed the
> > sm7xxfb driver. When I reverted it on a v3.18-rc5 kernel and booted it
> > on my Lemote laptop, the display worked again.
> > 
> > I then did a search for this commit and found that Debian reverted it
> > too. Seems that there's still some Debian users of this laptop. (RMS?)
> > 
> > What needs to be done to make this a "proper" driver? I can try to
> > support it, although I have no idea how it works :-)
> 
> Have you read the TODO file in this patch?  If you are willing to work
> on this, I'll be glad to apply it, but the reason I removed it was
> because no one had done anything with it for a very long time.
> 
> It needs a maintainer / developer, otherwise I can't take this.

i will like to help in this. Silicon Motion is still having SM712 in its product line and SM718 might also be a similar one.

now the problems (as i see) for me to help in the driver :
1) i am a newbie. though i have learnt a lot from the patches i sent , but still I am a newbie.
2) most important - I do not have the hardware. So from the TODO list dual head and 2D acceleration support will be tough without actually checking on the hardware.

thanks
sudip

> 
> thanks,
> 
> greg k-h
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