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: 584378 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 29097CCA481 for ; Thu, 23 Jun 2022 08:08:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229830AbiFWIIZ (ORCPT ); Thu, 23 Jun 2022 04:08:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51894 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230300AbiFWIIV (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 E2A5627B01 for ; Thu, 23 Jun 2022 01:08:13 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id b11-20020a5b008b000000b00624ea481d55so16709353ybp.19 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=1Gcco/gEBD8BG5abf6/vGM05ZpnXV9ZQ/hTU181DSRaQoKF8I40P0C3ggq1mRstxxa 9TdIako/zDpVy9wuwYp01LERk+6m9+tCC4+EhhrW7JKpAxpgyLX9PDf1HMNrOLMXh5yz 601e2F5p9t/91DypcdVSoasVxzPzaHWomU6l2FU2GevFXMcR+5pBRQy8f/zabVhjr1UT 0niRkdyC+MD+uphzyqHk+ZIkK3ZpBxia/dKBNV62st1gQ/cLODd75JVZIP9LaiWeIrN/ 2VwK6GJuJex2ctAnSlZhWu971GoeBlFAO48dQiz0OjVnL57MNmd2zBxZUGvUzbN+kn/n RbMA== X-Gm-Message-State: AJIora+8uAMbL2xLOthaxfk7Tc1b3BsA1rysahg0nrYtUZTjfYqERLnk dwJjbmyekGvzX+Dx+V5q7nxN+lKx1Pu1SUQ= 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: devicetree@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)