From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yuanhan Liu Subject: Re: [PATCH] drm/i915: make DP training try a little harder Date: Thu, 6 Jan 2011 09:56:24 +0800 Message-ID: <20110106015624.GD2702@yliu-dev.sh.intel.com> References: <1294267524-24062-1-git-send-email-jbarnes@virtuousgeek.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id 2A7619EFAC for ; Wed, 5 Jan 2011 17:57:52 -0800 (PST) Content-Disposition: inline In-Reply-To: <1294267524-24062-1-git-send-email-jbarnes@virtuousgeek.org> 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: Jesse Barnes Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org On Wed, Jan 05, 2011 at 02:45:24PM -0800, Jesse Barnes wrote: > When trying to do channel equalization, we need to make sure we still > have clock recovery on all lanes while training. We also need to try > clock recovery again if we lose the clock or if channel eq fails 5 > times. We'll try clock recovery up to 5 more times before giving up > entirely. > > Gets suspend/resume working on my Vaio again and brings us back into > compliance with the DP training sequence spec. This fixes the suspend/resume issue on my side, too.