From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [PATCH 0/4] drm/i915/dp: aux and dpcd fixes Date: Mon, 23 Sep 2013 08:59:43 +0300 Message-ID: <87siww5b8w.fsf@intel.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id E9D96E5C28 for ; Sun, 22 Sep 2013 22:57:23 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org On Fri, 20 Sep 2013, Jani Nikula wrote: > I haven't received confirmation from various bug reporters whether these > actually fix any issues, but here goes anyway. These are on the series, but I bet it's patch 2/4 that does the trick. Reference: https://bugs.freedesktop.org/show_bug.cgi?id=60263 Tested-by: Nicolas Suzor > We may want to revisit patch 2/4 in a future patch, adding some > heuristic to increase delay with each retry, and maybe taking into > account i2c bit rate capabilities if reported in dpcd. > > BR, > Jani. > > > Jani Nikula (4): > drm/i915/dp: retry i2c-over-aux seven times on AUX DEFER > drm/i915/dp: increase i2c-over-aux retry interval on AUX DEFER > drm/i915/dp: downstream port capabilities are not present in DPCD 1.0 > drm/i915/dp: read DPCD PSR capability only on eDP > > drivers/gpu/drm/i915/intel_dp.c | 52 +++++++++++++++++++++++++++++---------- > 1 file changed, 39 insertions(+), 13 deletions(-) > > -- > 1.7.9.5 > -- Jani Nikula, Intel Open Source Technology Center