From patchwork Fri Aug 6 14:11:07 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 117816 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 o76EC3FS002287 for ; Fri, 6 Aug 2010 14:12:38 GMT Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A996C9E9DB for ; Fri, 6 Aug 2010 07:12:03 -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 88E7B9E7DB for ; Fri, 6 Aug 2010 07:11:53 -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 2131937-1500048 for multiple; Fri, 06 Aug 2010 15:14:32 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Fri, 6 Aug 2010 15:11:07 +0100 Message-Id: <1281103867-8982-1-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/edp: Flush the write before waiting for PLLs 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]); Fri, 06 Aug 2010 14:12:42 +0000 (UTC) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 9814182..5cae58a 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1570,6 +1570,7 @@ static void ironlake_enable_pll_edp (struct drm_crtc *crtc) dpa_ctl = I915_READ(DP_A); dpa_ctl |= DP_PLL_ENABLE; I915_WRITE(DP_A, dpa_ctl); + POSTING_READ(DP_A); udelay(200); }