From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Miao Subject: Re: [PATCH 3/6] pxa: fix pxa168 lcd controller vsync/hsync timing error Date: Mon, 9 Nov 2009 11:39:30 +0800 Message-ID: References: <7c34ac520911022245x7f002a7at846a835dfded550c@mail.gmail.com> <7c34ac520911041815k6555e209r4039ae9f97c9ebca@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sfi-mx-2.v28.ch3.sourceforge.com ([172.29.28.122] helo=mx.sourceforge.net) by h25xhf1.ch3.sourceforge.com with esmtp (Exim 4.69) (envelope-from ) id 1N7L6n-0006Dr-1g for linux-fbdev-devel@lists.sourceforge.net; Mon, 09 Nov 2009 03:40:01 +0000 Received: from qw-out-1920.google.com ([74.125.92.145]) by 72vjzd1.ch3.sourceforge.com with esmtp (Exim 4.69) id 1N7L6h-0002eN-QM for linux-fbdev-devel@lists.sourceforge.net; Mon, 09 Nov 2009 03:40:00 +0000 Received: by qw-out-1920.google.com with SMTP id 5so484225qwc.4 for ; Sun, 08 Nov 2009 19:39:50 -0800 (PST) In-Reply-To: <7c34ac520911041815k6555e209r4039ae9f97c9ebca@mail.gmail.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-fbdev-devel-bounces@lists.sourceforge.net To: Jun Nie Cc: linux-fbdev-devel@lists.sourceforge.net, linux-arm-kernel@lists.infradead.org >> Could you please help double check this? My understanding is >> FB_SYNC_VERT_HIGH_ACT means it's a positive pulse covering all the >> valid HSYNCs, and a rising edge of VSYNC means a start of the frame. >> >> However, CFG_INV_VSYNC is '1' means the opposite. >> > > My understanding is that high active means high level trigger new > frame/line. Below page support my point if it is not wrong. > > http://www.arcadecollecting.com/info/Sync_fixing.txt > Tried to find the specific diagram in the spec on what CFG_INV_* means but failed, can you help verified this with an oscilloscope and let know the result? This is a fix then, and I'd like it to get into .32, sorry for late reply. ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july