From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesse Barnes Subject: Re: [Intel-gfx] [PATCH 3/4] drm/i915: Fix PCH port pipe select in CPT disable paths Date: Mon, 8 Aug 2011 09:31:37 -0700 Message-ID: <20110808093137.5ed7b8ba@jbarnes-desktop> References: <1312653248-3487-1-git-send-email-keithp@keithp.com> <1312653248-3487-4-git-send-email-keithp@keithp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1312653248-3487-4-git-send-email-keithp@keithp.com> Sender: linux-kernel-owner@vger.kernel.org To: Keith Packard Cc: Dave Airlie , intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org On Sat, 6 Aug 2011 10:54:07 -0700 Keith Packard wrote: > CPT pipe select is different from previous generations (using two bits > instead of one). All of the paths from intel_disable_pch_ports were > not making this distinction. > > Mode setting with pipe A turned off would then also force all outputs > on pipe B to get turned off as the disable code would mistakenly > decide that all of these outputs were on pipe A and turn them off. > > This is an extension of the CPT DP disable fix (why didn't I fix this then?) > > Signed-off-by: Keith Packard > --- > drivers/gpu/drm/i915/i915_reg.h | 13 ++----- > drivers/gpu/drm/i915/intel_display.c | 60 ++++++++++++++++++++++++++++++--- > 2 files changed, 58 insertions(+), 15 deletions(-) > Reviewed-by: Jesse Barnes -- Jesse Barnes, Intel Open Source Technology Center