linux-kernel - RE: [PATCHv2 0/4] LS1021A: Add dcfb framebuffer driver support.

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Message-ID: <BY2PR0301MB0613ABEA1410C04CF07C1C7C9B780@BY2PR0301MB0613.namprd03.prod.outlook.com>
Date:	Thu, 4 Dec 2014 08:30:01 +0000
From:	"Li.Xiubo@...escale.com" <Li.Xiubo@...escale.com>
To:	Tomi Valkeinen <tomi.valkeinen@...com>,
	Arnd Bergmann <arnd@...db.de>
CC:	"plagnioj@...osoft.com" <plagnioj@...osoft.com>,
	"linux-fbdev@...r.kernel.org" <linux-fbdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"shawn.guo@...aro.org" <shawn.guo@...aro.org>,
	"alexander.stein@...tec-electronic.com" 
	<alexander.stein@...tec-electronic.com>
Subject: RE: [PATCHv2 0/4] LS1021A: Add dcfb framebuffer driver support.

Hi Tomi,



> -----Original Message-----
> From: Tomi Valkeinen [mailto:tomi.valkeinen@...com]
> Sent: Thursday, December 04, 2014 4:10 PM
> To: Xiubo Li-B47053; Arnd Bergmann
> Cc: plagnioj@...osoft.com; linux-fbdev@...r.kernel.org; linux-
> kernel@...r.kernel.org; shawn.guo@...aro.org; alexander.stein@...tec-
> electronic.com
> Subject: Re: [PATCHv2 0/4] LS1021A: Add dcfb framebuffer driver support.
> 
> Hi Xiubo,
> 
> On 04/12/14 03:56, Li.Xiubo@...escale.com wrote:
> > Hi Arnd,
> >
> > Thanks for you advice.
> >
> > Because this is very emergency for customers and have delayed for monthes,
> and the
> > DRM/KMS will have a little long time to be supported. So I'd like to add
> this first
> > and will add DRM/KMS version later.
> 
> I would also suggest to just write a drm driver for this. I don't see
> anything special in this driver that would be better supported via
> fbdev. With drm you'll get a more modern framework, and you will still
> have the same /dev/fbX device to use for legacy userspace software.
> 
> What do you mean with "delayed for months"? The first version of this
> series (that I can find) was posted less than two weeks ago.
> 

Sorry for confusing, it was delayed for other reasons internal.

I am not familiar about the DRM, and I'd like to know if the DRM driver will be
support, should I also develop the libdrm too ? Or just coding in kernel level ?
Is there any Document about how to have /dev/fbX device to use ?

If possible, I'd like this could be accept for this time. And I will add the DRM
Version later(for developing and testing will take a long time).

Thanks very much,

BRs
Xiubo


>  Tomi
> 

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