linux-kernel - Re: [PATCH 0/5] at91: atmel_lcdfb: regression fixes and cpu

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Date:	Fri, 8 Mar 2013 10:37:45 +0100
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	Johan Hovold <jhovold@...il.com>, Olof Johansson <olof@...om.net>,
	"Arnd Bergmann" <arnd@...db.de>
CC:	<FlorianSchandinat@....de>,
	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-fbdev@...r.kernel.org>,
	<jacmet@...site.dk>
Subject: Re: [PATCH 0/5] at91: atmel_lcdfb: regression fixes and cpu_is removal

On 02/10/2013 07:45 PM, Johan Hovold :
> On Sun, Feb 10, 2013 at 1:47 AM, Olof Johansson <olof@...om.net> wrote:
>> On Fri, Feb 08, 2013 at 05:35:13PM +0100, Nicolas Ferre wrote:
>>> These patches fix a regression in 16-bpp support for older SOCs which
>>> use IBGR:555 rather than BGR:565 pixel layout. Use SOC-type to
>>> determine if the controller uses the intensity-bit and restore the
>>> old layout in that case.
>>>
>>> The last patch is a removal of uses of cpu_is_xxxx() macros in
>>> atmel_lcdfb with a platform-device-id table and static
>>> configurations.
>>>
>>>
>>> Patches from Johan Hovold taken from: "[PATCH 0/3] atmel_lcdfb: fix
>>> 16-bpp regression" and "[PATCH v2 0/3] ARM: at91/avr32/atmel_lcdfb:
>>> remove cpu_is macros" patch series to form a clean patch series with
>>> my signature.
>>>
>>> Arnd, Olof, as it seems that old fbdev drivers are not so much
>>> reviewed those days, can we take the decision to queue this material
>>> through arm-soc with other AT91 drivers updates?
>>
>> It would be beneficial to get an ack from Florian. Was he involved in
>> the review of the code that regressed 16-bpp support in the first
>> place? When was the regression introduced?
> 
> In v3.4 by commit 787f9fd2328 ("atmel_lcdfb: support 16bit BGR:565 mode,
> remove unsupported 15bit modes").

Arnd, Olof,

Please tell me if I can do something to ease the adoption of these
patches during 3.9-rc timeframe (I can rebase it on top of 3.9-rc1 to
avoid any conflict: the file board-neocore926.c was removed during the
merge window).
Johan has written the series a long time ago and we still do not have it
in mainline.

If the option to ask Andrew is better in your opinion, please tell me.

Best regards,
-- 
Nicolas Ferre
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