From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: [patch] added brightness feature to lcd class. Date: Mon, 9 Nov 2009 15:18:36 -0800 Message-ID: <20091109151836.4a6b294d.akpm@linux-foundation.org> References: <90b950fc0911020050q3bc3fae8j954ec6ed73d79b5@mail.gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <90b950fc0911020050q3bc3fae8j954ec6ed73d79b5@mail.gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: InKi Dae Cc: linux-fbdev-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Kyungmin Park , Richard Purdie On Mon, 2 Nov 2009 17:50:02 +0900 InKi Dae 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.