From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 08911C04AA5 for ; Thu, 25 Aug 2022 11:33:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234820AbiHYLdV (ORCPT ); Thu, 25 Aug 2022 07:33:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49230 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235429AbiHYLdU (ORCPT ); Thu, 25 Aug 2022 07:33:20 -0400 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 843D0ADCD4 for ; Thu, 25 Aug 2022 04:33:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1661427199; x=1692963199; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=b7csjJ66m9R1nYCYuZ8qDs+sOFrF9Bp0aHUcdF5vRq8=; b=j4czR3KJReSjh27CBQKkvFDhS0c5puzlGoZcXCmUhlGJstF/SuJTWjLh FJJJ5nRI4vsoWo2SNL79aTaWeT5THyyaHE1p7PCEgMnadFWnY0tVdvEl2 XI+SuJ6QvJ4tMIVyhdi24PiR40hV6SRDf82vjl1dkyNE0+fzcdRyoJ476 xl+oj2/1cLB5tJ3dX2T/h7n923S0aTLj+JSZ75pwGkt/RhZ+VVuuQTQvx D68tNRepO1pY/Rrofz3FP1JKzRV7JliCj0ZDTDi2+3jY1PsCDSA5wFCYK x7/5I8s19uzfBONer2oX51jxonfNYOwvD4buhUNApkLFzRM07YnxlZgDY w==; X-IronPort-AV: E=McAfee;i="6500,9779,10449"; a="281185487" X-IronPort-AV: E=Sophos;i="5.93,262,1654585200"; d="scan'208";a="281185487" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Aug 2022 04:33:19 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,262,1654585200"; d="scan'208";a="610132871" Received: from stinkpipe.fi.intel.com (HELO stinkbox) ([10.237.72.59]) by orsmga002.jf.intel.com with SMTP; 25 Aug 2022 04:33:16 -0700 Received: by stinkbox (sSMTP sendmail emulation); Thu, 25 Aug 2022 14:33:15 +0300 Date: Thu, 25 Aug 2022 14:33:15 +0300 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= To: Jani Nikula Cc: intel-gfx@lists.freedesktop.org, Diego Santa Cruz , stable@vger.kernel.org Subject: Re: [Intel-gfx] [PATCH] drm/i915/glk: ECS Liva Q2 needs GLK HDMI port timing quirk Message-ID: References: <20220616124137.3184371-1-jani.nikula@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20220616124137.3184371-1-jani.nikula@intel.com> X-Patchwork-Hint: comment Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Thu, Jun 16, 2022 at 03:41:37PM +0300, Jani Nikula wrote: > From: Diego Santa Cruz > > The quirk added in upstream commit 90c3e2198777 ("drm/i915/glk: Add > Quirk for GLK NUC HDMI port issues.") is also required on the ECS Liva > Q2. > > Note: Would be nicer to figure out the extra delay required for the > retimer without quirks, however don't know how to check for that. > > Cc: stable@vger.kernel.org > Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/1326 > Signed-off-by: Diego Santa Cruz > Signed-off-by: Jani Nikula Seems fine. Although I do wonder whether we could directly identify the bogus retimer chip via the dual mode adapter registers. I've asked for that in the bug. Reviewed-by: Ville Syrjälä > --- > drivers/gpu/drm/i915/display/intel_quirks.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/gpu/drm/i915/display/intel_quirks.c b/drivers/gpu/drm/i915/display/intel_quirks.c > index c8488f5ebd04..e415cd7c0b84 100644 > --- a/drivers/gpu/drm/i915/display/intel_quirks.c > +++ b/drivers/gpu/drm/i915/display/intel_quirks.c > @@ -191,6 +191,9 @@ static struct intel_quirk intel_quirks[] = { > /* ASRock ITX*/ > { 0x3185, 0x1849, 0x2212, quirk_increase_ddi_disabled_time }, > { 0x3184, 0x1849, 0x2212, quirk_increase_ddi_disabled_time }, > + /* ECS Liva Q2 */ > + { 0x3185, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time }, > + { 0x3184, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time }, > }; > > void intel_init_quirks(struct drm_i915_private *i915) > -- > 2.30.2 -- Ville Syrjälä Intel