Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753966AbaAKSgz (ORCPT ); Sat, 11 Jan 2014 13:36:55 -0500 Received: from gw-1.arm.linux.org.uk ([78.32.30.217]:34545 "EHLO pandora.arm.linux.org.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753841AbaAKSgx (ORCPT ); Sat, 11 Jan 2014 13:36:53 -0500 Date: Sat, 11 Jan 2014 18:36:48 +0000 From: Russell King - ARM Linux To: Jean-Francois Moine Cc: dri-devel@lists.freedesktop.org, Rob Clark , Dave Airlie , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v2 20/28] drm/i2c: tda998x: move the TBG_CNTRL_0 register setting Message-ID: <20140111183648.GH15937@n2100.arm.linux.org.uk> References: <20140109120607.6a33bee5@armhf> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140109120607.6a33bee5@armhf> User-Agent: Mutt/1.5.19 (2009-01-05) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jan 09, 2014 at 12:06:07PM +0100, Jean-Francois Moine wrote: > According to the comment, the TBG_CNTRL_0 register must be set at the > end of the mode change sequence. So you believe comments without understanding the history, and you move code around due to those. No, this is again wrong. That write to REG_TBG_CNTRL_0 in the sequence writing the video information to the chip. This doesn't encompass the HDMI/DVI mode setting nor the audio configuration - the audio configuration can change independently of the video setting, and does not require this register to be written. This also brings up a bug in one of your previous patches which I now must go back and comment upon. -- FTTC broadband for 0.8mile line: 5.8Mbps down 500kbps up. Estimation in database were 13.1 to 19Mbit for a good line, about 7.5+ for a bad. Estimate before purchase was "up to 13.2Mbit". -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/