From patchwork Wed Jun 22 21:59:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saravana Kannan X-Patchwork-Id: 585063 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 B9FFDCCA47F for ; Wed, 22 Jun 2022 21:59:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357031AbiFVV7v (ORCPT ); Wed, 22 Jun 2022 17:59:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44266 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242676AbiFVV7f (ORCPT ); Wed, 22 Jun 2022 17:59:35 -0400 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2681918356 for ; Wed, 22 Jun 2022 14:59:23 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id e85-20020a25e758000000b00668ad2fcfdcso14920215ybh.8 for ; Wed, 22 Jun 2022 14:59:23 -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=Ah2iRj02YiwPhgw+fxQ8yR+iMVe2r8+mhYVV0rIvZow=; b=i3p4bjKEtbMXzQEuzp8oUcL2dOBUx5t3ouIxH3WFaHxtQBesxVZ95zRpRsbv0rotKc DCfLguFUFd9z7qjx0Dt8NAVaz0jRnB1K5Fh9Yi5/ZA7DG9FgX6RK9DwoMGuX/btXSeNY jRizfq/806YnP4p7qCTtBJ9GK0YOoKEvQNuF2KL6ayR3OaHneYEgbFUH1cZ3RoYx5Y7f 2KbJ9cRY3K9bypygWX7MY4tpexszDMtIlE99YgGPEudPytCeem3ndf6dqYBx6cC19AlU 1k9DIcVe8I+qgmnTG95ADMGi1utSftyTTlGvgR8EUYa2yoeI/p7XaS4EVakP4MZtD+7U xgkQ== 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=Ah2iRj02YiwPhgw+fxQ8yR+iMVe2r8+mhYVV0rIvZow=; b=MJqfkElxNUMSfBpSxqBgfo3pAeeMcEXUScd40dJ7pUCGCC9qRztPKGR9HjHikByFYP mwrgxTdZKbfSwTyEtlpId5vZJI3uDTvYjBurjxeDV8dhUp+OWQaRlqqYS5eerU1xYIx3 ZXyDDrCgHnko3pkOLHshHs1dlfnjjlIrJymIvTrrrW6bx3dx8nHlFMbgCUgDhz7qo0Wb O4VVyLO+Hss2o2SXfst8eXU5/QoeSp7rYS3r2DMfv5tmZBDm+lkAzJxNjAF6Y9RVWJ+k IGY/DTUMZ5BAu2WLP2jhvnv7/r7r8TXH20eEFXGkpVt8Z/trU/Qtr87X0IUO4xYfjbHK EFVw== X-Gm-Message-State: AJIora+BICANx8xukpPbjGJlvzDO/LVnPPUyY0wA0F9ONB2YvKSrNkeD X9E5iFkcRcUCrqka0rU1xdolKFLak5461TE= X-Google-Smtp-Source: AGRyM1serWNuSMZl/j+NqgnonDe+81gNNUGvZ49e005IqIx08CvB3Gw4PJWEQaMJYGKoe5Xwjqr9aD6KRs6btJ0= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:be1f:89ac:a37d:6bb4]) (user=saravanak job=sendgmr) by 2002:a25:6a46:0:b0:669:1da2:ba1d with SMTP id f67-20020a256a46000000b006691da2ba1dmr5894467ybc.163.1655935163161; Wed, 22 Jun 2022 14:59:23 -0700 (PDT) Date: Wed, 22 Jun 2022 14:59:11 -0700 In-Reply-To: <20220622215912.550419-1-saravanak@google.com> Message-Id: <20220622215912.550419-3-saravanak@google.com> Mime-Version: 1.0 References: <20220622215912.550419-1-saravanak@google.com> X-Mailer: git-send-email 2.37.0.rc0.161.g10f37bed90-goog Subject: [PATCH v1 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: linux-pm@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 --- 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)