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 14C18C7EE2E for ; Mon, 12 Jun 2023 11:00:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236984AbjFLLAr (ORCPT ); Mon, 12 Jun 2023 07:00:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36232 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237066AbjFLLAV (ORCPT ); Mon, 12 Jun 2023 07:00:21 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E32C3C3C for ; Mon, 12 Jun 2023 03:47:08 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id D3BD5615FD for ; Mon, 12 Jun 2023 10:47:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E8721C433EF; Mon, 12 Jun 2023 10:47:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1686566827; bh=XhsK5a+HFJR8R4ea0N5TSbIHfmSdQCUaS6SoWkRq2Kk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GsaiB0NXtgE8bgTb5BbKEeoyNIzO5KQ52XtKp8sKcYg2FLRkvmIgTpz0NcqwCwDJX Q7P9cDiKXb/lLchbsoOZ4rfX0FpnF8vkr2coixugOaZLcGxT+mFsEnxGQyBxOmHJoR 3xOY0fAAn7zNrSCUK3hYwPXrJBMQ+D6kWE0tsfYg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Jouni=20H=C3=B6gander?= , Luca Coelho , Joonas Lahtinen , Sasha Levin Subject: [PATCH 6.3 019/160] drm/i915: Use 18 fast wake AUX sync len Date: Mon, 12 Jun 2023 12:25:51 +0200 Message-ID: <20230612101715.948451370@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230612101715.129581706@linuxfoundation.org> References: <20230612101715.129581706@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jouni Högander [ Upstream commit 2d6f2f79e06571d41eb1223abebe9097511c9544 ] HW default for wake sync pulses is 18. 10 precharge and 8 preamble. There is no reason to change this especially as it is causing problems with certain eDP panels. v3: Change "Fixes:" commit v2: Remove "fast wake" repeat from subject Signed-off-by: Jouni Högander Fixes: e1c71f8f9180 ("drm/i915: Fix fast wake AUX sync len") Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8475 Reviewed-by: Luca Coelho Link: https://patchwork.freedesktop.org/patch/msgid/20230530101649.2549949-1-jouni.hogander@intel.com (cherry picked from commit b29a20f7c4995a059ed764ce42389857426397c7) Signed-off-by: Joonas Lahtinen Signed-off-by: Sasha Levin --- drivers/gpu/drm/i915/display/intel_dp_aux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c index 2ffd68b07984b..36d6ece8b4616 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_aux.c +++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c @@ -127,7 +127,7 @@ static int intel_dp_aux_sync_len(void) static int intel_dp_aux_fw_sync_len(void) { - int precharge = 16; /* 10-16 */ + int precharge = 10; /* 10-16 */ int preamble = 8; return precharge + preamble; -- 2.39.2