linux-kernel - Re: [patch] added brightness feature to lcd class.

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Date:	Mon, 9 Nov 2009 15:18:36 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	InKi Dae <daeinki@...il.com>
Cc:	linux-fbdev-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, Kyungmin Park <kmpark@...radead.org>,
	Richard Purdie <rpurdie@...ys.net>
Subject: Re: [patch] added brightness feature to lcd class.

On Mon, 2 Nov 2009 17:50:02 +0900
InKi Dae <daeinki@...il.com> wrote:

> This patch adds brightness feature to lcd class.
> (kernel/driver/video/backlight/lcd.c)
> 
> In the past, most of the lcd panels for embedded system was TFT-LCD
> Panel needing backlight device.
> But now AMOLED LCD Panel appeared so we should consider brightness
> control for AMOLED Panel.
> 
> For the time being, I used backlight fake driver for brightness
> control of AMOLED LCD Panel.
> But this way is not good, so I propose to add brightness feature to lcd class.
> 
> For this, I attached patch file and if my proposal is approved
> Then I will send s6e63m0 and tl2796 AMOLED lcd panel driver based on
> lcd class modified soon.

Please send the s6e63m0 and tl2796 patches anyway.  That way we have
some examples of how this new capability is used by drivers.

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