From patchwork Mon Aug 9 13:53:08 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 118387 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by demeter.kernel.org (8.14.4/8.14.3) with ESMTP id o79Ds1ub002271 for ; Mon, 9 Aug 2010 13:54:36 GMT Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 870AB9EB25 for ; Mon, 9 Aug 2010 06:54:01 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from fireflyinternet.com (server109-228-4-14.live-servers.net [109.228.4.14]) by gabe.freedesktop.org (Postfix) with ESMTP id 08D839E969 for ; Mon, 9 Aug 2010 06:53:51 -0700 (PDT) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.66.37; Received: from arrandale.alporthouse.com (unverified [78.156.66.37]) by fireflyinternet.com (Firefly Internet SMTP) with ESMTP id 2563894-1500048 for multiple; Mon, 09 Aug 2010 14:54:31 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Mon, 9 Aug 2010 14:53:08 +0100 Message-Id: <1281361988-1814-1-git-send-email-chris@chris-wilson.co.uk> X-Mailer: git-send-email 1.7.1 X-Originating-IP: 78.156.66.37 Subject: [Intel-gfx] [PATCH] drm/i915/crt: Flush register prior to waiting for vblank. X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.11 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 X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Mon, 09 Aug 2010 13:54:36 +0000 (UTC) diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index 236a63d..4846c51 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -328,6 +328,7 @@ intel_crt_load_detect(struct drm_crtc *crtc, struct intel_encoder *intel_encoder if (IS_I9XX(dev)) { uint32_t pipeconf = I915_READ(pipeconf_reg); I915_WRITE(pipeconf_reg, pipeconf | PIPECONF_FORCE_BORDER); + POSTING_READ(pipeconf_reg); /* Wait for next Vblank to substitue * border color for Color info */ intel_wait_for_vblank(dev);