Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754227Ab2HKTPl (ORCPT ); Sat, 11 Aug 2012 15:15:41 -0400 Received: from mail-wg0-f44.google.com ([74.125.82.44]:62489 "EHLO mail-wg0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751989Ab2HKTPi (ORCPT ); Sat, 11 Aug 2012 15:15:38 -0400 Date: Sat, 11 Aug 2012 21:15:53 +0200 From: Daniel Vetter To: Takashi Iwai Cc: Daniel Vetter , Hugh Dickins , Linus Torvalds , Chris Wilson , Giacomo Comes , Paulo Zanoni , linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] drm/i915: Fix blank panel at reopening lid Message-ID: <20120811191553.GA5132@phenom.ffwll.local> Mail-Followup-To: Takashi Iwai , Hugh Dickins , Linus Torvalds , Chris Wilson , Giacomo Comes , Paulo Zanoni , linux-kernel@vger.kernel.org References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Operating-System: Linux phenom 3.4.0-rc3+ User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 934 Lines: 24 On Sat, Aug 11, 2012 at 08:56:42AM +0200, Takashi Iwai wrote: > When you reopen the lid on a laptop with PCH, the panel suddenly goes > blank sometimes. It seems because BLC_PWM_CPU_CTL register is cleared > to zero when BLC_PWM_CPU_CTL2 and BLC_PWM_PCH_CTL1 registers are > enabled. > > This patch fixes the problem by moving the call of the function setting > BLC_PWM_CPU_CTL after enabling other two registers. > > Reported-and-tested-by: Hugh Dickins > Signed-off-by: Takashi Iwai > --- > v1->v2: add comments, fixed changelog Picked up for -fixes, thanks for the patch. -Daniel -- Daniel Vetter Mail: daniel@ffwll.ch Mobile: +41 (0)79 365 57 48 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/