From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756422Ab2CGNYS (ORCPT ); Wed, 7 Mar 2012 08:24:18 -0500 Received: from mga09.intel.com ([134.134.136.24]:27631 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751464Ab2CGNYR (ORCPT ); Wed, 7 Mar 2012 08:24:17 -0500 Message-Id: X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.67,352,1309762800"; d="scan'208";a="115502687" From: Chris Wilson Subject: Re: [PATCH 2/9] drm/i915/intel_i2c: assign HDMI port D to pin pair 6 To: Daniel Kurtz , Keith Packard , David Airlie , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Cc: Yufeng Shen , Benson Leung , Daniel Kurtz , Sameer Nanda In-Reply-To: <1331121050-17857-3-git-send-email-djkurtz@chromium.org> References: <1331121050-17857-1-git-send-email-djkurtz@chromium.org> <1331121050-17857-3-git-send-email-djkurtz@chromium.org> Date: Wed, 07 Mar 2012 13:23:06 +0000 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 7 Mar 2012 19:50:43 +0800, Daniel Kurtz wrote: > According to i915 documentation [1], "Port D" (DP/HDMI Port D) is > actually gmbus pin pair 6 (gmbus0.2:0 == 110b GPIOF), not 7 (111b). > Pin pair 7 is a reserved pair. > > [1] Documentation for [DevSNB+] and [DevIBX], as found on > http://intellinuxgraphics.org The problem is I took those definitions from the gen2 specs, and munged in the obvious changes with gen3... And it appears that the GPIO pin assignment versus GMBUS has changed over the years. And so the can of worms is opened! -Chris -- Chris Wilson, Intel Open Source Technology Centre