From patchwork Thu Sep 27 13:43:05 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vijay Purushothaman X-Patchwork-Id: 1514111 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by patchwork2.kernel.org (Postfix) with ESMTP id C9793DFE80 for ; Thu, 27 Sep 2012 13:49:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B037A9F5EC for ; Thu, 27 Sep 2012 06:49:59 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga14.intel.com (mga14.intel.com [143.182.124.37]) by gabe.freedesktop.org (Postfix) with ESMTP id D7C809F5C6 for ; Thu, 27 Sep 2012 06:41:45 -0700 (PDT) Received: from azsmga001.ch.intel.com ([10.2.17.19]) by azsmga102.ch.intel.com with ESMTP; 27 Sep 2012 06:41:31 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.80,495,1344236400"; d="scan'208";a="197927831" Received: from vijay-desktop.iind.intel.com ([10.223.25.81]) by azsmga001.ch.intel.com with ESMTP; 27 Sep 2012 06:41:29 -0700 From: Vijay Purushothaman To: Intel Graphics Date: Thu, 27 Sep 2012 19:13:05 +0530 Message-Id: <1348753389-30736-6-git-send-email-vijay.a.purushothaman@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1348753389-30736-1-git-send-email-vijay.a.purushothaman@intel.com> References: <1348753389-30736-1-git-send-email-vijay.a.purushothaman@intel.com> Subject: [Intel-gfx] [PATCH v2 5/9] drm/i915: Disable CRT hotplug detection for valleyview X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Temporary work around to avoid spurious crt hotplug interrupts. Signed-off-by: Vijay Purushothaman Signed-off-by: Gajanan Bhat Acked-by: Jesse Barnes --- drivers/gpu/drm/i915/intel_crt.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index c42b980..5f30364 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -308,6 +308,13 @@ static bool valleyview_crt_detect_hotplug(struct drm_connector *connector) bool ret; u32 save_adpa; + /* + * Disable crt detect hotplug for VLV X0. Spurious hot plug + * detect calls crashses the X0 system + */ + if (IS_VALLEYVIEW(dev)) + return false; + save_adpa = adpa = I915_READ(ADPA); DRM_DEBUG_KMS("trigger hotplug detect cycle: adpa=0x%x\n", adpa);