linux-kernel - Re: [PATCH 1/1] PXAFB: Support for backlight control

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Message-ID: <20070222082848.GM4641@enneenne.com>
Date:	Thu, 22 Feb 2007 09:28:49 +0100
From:	Rodolfo Giometti <giometti@...eenne.com>
To:	Richard Purdie <rpurdie@...ys.net>
Cc:	linux-arm-kernel@...ts.arm.linux.org.uk,
	linux-fbdev-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, Paul Sokolovsky <pmiscml@...il.com>
Subject: Re: [PATCH 1/1] PXAFB: Support for backlight control

On Thu, Feb 22, 2007 at 12:59:06AM +0000, Richard Purdie wrote:
> 
> Reading through the patch its:
> 
> 1) Not against any mainline kernel
> 2) Not against a recent kernel

I'm sorry, but the patch applay against the latest kernel. Please, try
it.

> There were a number of backlight class changes just merged into mainline
> and you need to sync up any patch against them.

My patch uses current backlight class support in the kernel.

> As mentioned by others, there is no need to tie the backlight driver
> into the framebuffer any more. Have a look at
> drivers/video/backlight/corgi_bl.c for an example (its used by PXA
> devices).

That driver uses the backlight class support as my patch does into
pxafb.

> I have said elsewhere I will take patches to make corgi_bl a more
> generic driver (or maybe create a simple generic backlight driver) along
> the lines of what Paul mentioned.

I see.

I suppose you are the backlight support mantainer, so what do you
suggest to do to "make corgi_bl a more generic driver"?

I have to rename and modify it? Or just copy it to have backward
compatibility and the modify the new file?

I should mv backlight directory from the video one?

Thanks for your suggestions,

Rodolfo

-- 

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