From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH] drm/edid: Reduce horizontal timings for pixel replicated modes Date: Mon, 25 Aug 2014 15:02:58 +0200 Message-ID: <20140825130258.GF15520@phenom.ffwll.local> References: <1408395734-21955-1-git-send-email-clinton.a.taylor@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-we0-f174.google.com (mail-we0-f174.google.com [74.125.82.174]) by gabe.freedesktop.org (Postfix) with ESMTP id C198A89316 for ; Mon, 25 Aug 2014 06:02:35 -0700 (PDT) Received: by mail-we0-f174.google.com with SMTP id x48so13185593wes.5 for ; Mon, 25 Aug 2014 06:02:34 -0700 (PDT) Content-Disposition: inline In-Reply-To: <1408395734-21955-1-git-send-email-clinton.a.taylor@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: clinton.a.taylor@intel.com Cc: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org On Mon, Aug 18, 2014 at 02:02:14PM -0700, clinton.a.taylor@intel.com wrote: > From: Clint Taylor > > Pixel replicated modes should be 720 horizontal pixel and pixel > replicated by the HW across the HDMI cable at 2X pixel clock. Current > horizontal resolution of 1440 does not allow pixel duplication to > occur and scaling artifacts occur on the TV. HDMI certification > 7-26 currently fails for all pixel replicated modes. This change fizes > the HDMI certification issues with 480i/576i. > > V2: Removed interlace flag from VICs 44 and 45. Will be submitted in > another patch. Various other formatting fixes. > > Signed-off-by: Clint Taylor > --- > drivers/gpu/drm/drm_edid.c | 96 ++++++++++++++++++------------------- > drivers/gpu/drm/i915/intel_hdmi.c | 10 +++- I think the i915 side of this double-clock support should be split out into a separate patch. Makes it easier for people to spot that there's some driver work to enable this properly. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch