From patchwork Thu Aug 5 08:29:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 12420635 X-Patchwork-Delegate: robh@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 X-Spam-Level: X-Spam-Status: No, score=-19.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AA97CC4320E for ; Thu, 5 Aug 2021 08:29:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 834F8610FC for ; Thu, 5 Aug 2021 08:29:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239495AbhHEI3Y (ORCPT ); Thu, 5 Aug 2021 04:29:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:44526 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239448AbhHEI3W (ORCPT ); Thu, 5 Aug 2021 04:29:22 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 1C0AA6105A; Thu, 5 Aug 2021 08:29:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1628152149; bh=PXKl7KMyp7SLlsXgaxi3qGWK1QDFQApdkdN/A03yZq4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=N/mCiZWdZanEJLQArYEgGe0ZP3oJVB72D0XLbep1VHeBPl1kKXu4Nr8AK3OttYSlZ awlT+wDjhCwtc9l9K9L3eIP5Tp/Cw0XumsnG1P7Ml8wwcakIL/IBXhzRMk2UfuSO8J gWVQYG5Dgb6q2pqnNV+e7btj48s9Fn8YxS31UGEmrW38QcBES1+k0qe42FvhLOi2wm Wda1m37Fob0XR3zNGn5PHIbFaHI7jD1IdguZ4DwRM6fYwvz4Vht5VVX7Umapv0KdjE s9cvGxRi8W8NlqChYdPIHIXVQukon8KVBUazU6nruumsY5KkW+dMdqPDD9ust0YXXW Ov/kaI/Q8Pxxg== Received: by mail.kernel.org with local (Exim 4.94.2) (envelope-from ) id 1mBYkP-001Dub-Vb; Thu, 05 Aug 2021 10:29:01 +0200 From: Mauro Carvalho Chehab To: Rob Herring Cc: linuxarm@huawei.com, mauro.chehab@huawei.com, Mauro Carvalho Chehab , Bjorn Helgaas , linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org Subject: [PATCH 3/3] PCI: of: Add some debug printks to track problems with of_node setup Date: Thu, 5 Aug 2021 10:29:00 +0200 Message-Id: X-Mailer: git-send-email 2.31.1 In-Reply-To: References: MIME-Version: 1.0 Sender: Mauro Carvalho Chehab Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org In order to be able to identify why some of_nodes are not created, we need to add some debug prints. Signed-off-by: Mauro Carvalho Chehab --- drivers/pci/of.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/pci/of.c b/drivers/pci/of.c index b6fa3bd46ae6..7b8c2b87eb25 100644 --- a/drivers/pci/of.c +++ b/drivers/pci/of.c @@ -18,6 +18,9 @@ #ifdef CONFIG_PCI void pci_set_of_node(struct pci_dev *dev) { + dev_dbg(&dev->dev, "%s: of_node: %pOF\n", + __func__, dev->bus->dev.of_node); + if (!dev->bus->dev.of_node) return; dev->dev.of_node = of_pci_find_child_device(dev->bus->dev.of_node, @@ -41,12 +44,16 @@ void pci_set_bus_of_node(struct pci_bus *bus) node = pcibios_get_phb_of_node(bus); } else { node = of_node_get(bus->self->dev.of_node); - if (!node) + if (!node) { node = of_node_get(bus->self->dev.parent->of_node); + dev_dbg(&bus->dev, "%s: use of_node of the parent", + __func__); + } if (node && of_property_read_bool(node, "external-facing")) bus->self->external_facing = true; } + dev_dbg(&bus->dev, "%s: of_node: %pOF\n", __func__, node); bus->dev.of_node = node; if (bus->dev.of_node)