Re: [PATCH 1/1] PXAFB: Support for backlight control
From: Rodolfo Giometti <giometti@enneenne.com>
Date: 2007-02-22 08:28:33
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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 -- GNU/Linux Solutions e-mail: giometti@enneenne.com Linux Device Driver giometti@gnudd.com Embedded Systems giometti@linux.it UNIX programming phone: +39 349 2432127