From patchwork Thu Jun 23 08:03:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saravana Kannan X-Patchwork-Id: 12891911 X-Patchwork-Delegate: kuba@kernel.org 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 722DBC43334 for ; Thu, 23 Jun 2022 08:08:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231206AbiFWII0 (ORCPT ); Thu, 23 Jun 2022 04:08:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51852 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230271AbiFWIIV (ORCPT ); Thu, 23 Jun 2022 04:08:21 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C4C5725C64 for ; Thu, 23 Jun 2022 01:08:13 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id e85-20020a25e758000000b00668ad2fcfdcso15893999ybh.8 for ; Thu, 23 Jun 2022 01:08:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=s9ND+o/2c+yLLqaQvSasSfGJRux3sdgC6yXqcCSmvC4=; b=ZChn5ahWF9VYjMaZyt75gRGdRRm9LYwWwkstPyFagKQEAyvitoOq9K9PtewRoCDhSM tAkvp8C+6vLvaAyusyWYI21A6zVjKa5/J8gAEms2VIQwhv3yjw+3NCR2DEx9uxGeN2QJ rS/zNPMzlbhn4YaJRa/lxLtaxH9A7m6NK3ZdXGOgoyyBfWLvx+PDntcmTJFeXZvqRilJ IYZVG4M+dhM5VQEV4SPScrfViR40Ehpl3D5iBw+7OCCiUX0dCoDDiuZRzruyfOzLI4Ou MQ3GXEQicXFecGuaW/OqF2wd1VI2EawxBbtZm4yAP8J1jKc/GtvpSLqNqDM4p5NK5zZS 759w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=s9ND+o/2c+yLLqaQvSasSfGJRux3sdgC6yXqcCSmvC4=; b=o0tpGEvAf07iGQn/wTcR4pf699kkhBrVuEUkXscKhj0rThw/dMTABWC2VCnOhE9P9j JhPFnxObFDaYEzFnqIarXX+N8DhNgR+UbfOlxXafBMn0/gOS6XE1L7n2pw8T6KPr4FEV qEcrjsU5tfKj3L01UFAp/Tx94zEeBBMzqIavgiLO4xeqkki77EqwIufOqzAaFUcl+++N Qj6IqTmB/Me2YrP8PLgPjUX1tt5s0EP56ykKiRPeNP2Jo8kSQQAVTwNjZOPC8QLEj86u 6tPl11Zs/5ZpONISNYklirSSxz1z2Jb0Cd27pf7xBWsYglYZxcU1lDelnUxFEbIt5iQ5 k9zg== X-Gm-Message-State: AJIora8FU2wrh6NsIy+HJrbEMyRjN2K0KOdspMkppW6egAU3VaB86apj 9Oyyzf8+hQzYdw9SAsBMDnLd/FZW0JMe06s= X-Google-Smtp-Source: AGRyM1sE5BByBONr09uTGuYvikqMrbKKy57XSWWEHEYrg9GZbQPbgu/DImBH3QXHzvbDpX1ROMvYGcf5ilhwWN4= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:8b2d:9894:73a4:8e1f]) (user=saravanak job=sendgmr) by 2002:a81:7007:0:b0:317:912a:32a3 with SMTP id l7-20020a817007000000b00317912a32a3mr9395945ywc.194.1655971692862; Thu, 23 Jun 2022 01:08:12 -0700 (PDT) Date: Thu, 23 Jun 2022 01:03:43 -0700 In-Reply-To: <20220623080344.783549-1-saravanak@google.com> Message-Id: <20220623080344.783549-3-saravanak@google.com> Mime-Version: 1.0 References: <20220623080344.783549-1-saravanak@google.com> X-Mailer: git-send-email 2.37.0.rc0.161.g10f37bed90-goog Subject: [PATCH v2 2/2] of: base: Avoid console probe delay when fw_devlink.strict=1 From: Saravana Kannan To: Greg Kroah-Hartman , "Rafael J. Wysocki" , Rob Herring , Frank Rowand , Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Len Brown , Saravana Kannan Cc: sascha hauer , peng fan , kevin hilman , ulf hansson , len brown , pavel machek , joerg roedel , will deacon , andrew lunn , heiner kallweit , russell king , "david s. miller" , eric dumazet , jakub kicinski , paolo abeni , linus walleij , hideaki yoshifuji , david ahern , kernel-team@android.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, iommu@lists.linux-foundation.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, kernel@pengutronix.de, devicetree@vger.kernel.org, linux-acpi@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Commit 71066545b48e ("driver core: Set fw_devlink.strict=1 by default") enabled iommus and dmas dependency enforcement by default. On some systems, this caused the console device's probe to get delayed until the deferred_probe_timeout expires. We need consoles to work as soon as possible, so mark the console device node with FWNODE_FLAG_BEST_EFFORT so that fw_delink knows not to delay the probe of the console device for suppliers without drivers. The driver can then make the decision on where it can probe without those suppliers or defer its probe. Fixes: 71066545b48e ("driver core: Set fw_devlink.strict=1 by default") Reported-by: Sascha Hauer Reported-by: Peng Fan Signed-off-by: Saravana Kannan Tested-by: Peng Fan --- drivers/of/base.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/of/base.c b/drivers/of/base.c index d4f98c8469ed..a19cd0c73644 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -1919,6 +1919,8 @@ void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align)) of_property_read_string(of_aliases, "stdout", &name); if (name) of_stdout = of_find_node_opts_by_path(name, &of_stdout_options); + if (of_stdout) + of_stdout->fwnode.flags |= FWNODE_FLAG_BEST_EFFORT; } if (!of_aliases)