From patchwork Mon Aug 3 21:01:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rob Herring (Arm)" X-Patchwork-Id: 1340534 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4BL9LH4sWgz9sTS for ; Tue, 4 Aug 2020 07:01:59 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729257AbgHCVB5 (ORCPT ); Mon, 3 Aug 2020 17:01:57 -0400 Received: from mail-io1-f68.google.com ([209.85.166.68]:46757 "EHLO mail-io1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729064AbgHCVB4 (ORCPT ); Mon, 3 Aug 2020 17:01:56 -0400 Received: by mail-io1-f68.google.com with SMTP id a5so24746443ioa.13; Mon, 03 Aug 2020 14:01:55 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=aFafu+8WFYxvnK2ZfkQMV1ef4S4ilss7PqKLS2/JE9Q=; b=ipXeKRH+xqu0EHK9jtgf5Niv5ypGpvAs060+j9cftbVi4H/bRDhG4/dVGwvVx5JEuZ DI8dw9dThv7cLhacTBNq92rxLY3Qqzoh7rfMF94qLt0ZxFvI+9CllvwmSmmOfiyxrbey XSR3bKBJrznxUu0TYsNwB3gPWLoYuOjwEfokUuErIleQ5er6evK2ZczBC0MhtDIcydGY 0tpmW9/iqdtVlm5bhCpV4bTutf2+AyvM9vtv87nTcn9fLvkBTIoQNCSmY9hDepk/ZxV+ rm/7YMm/SApcwCfSmiEbTa5V91g1z66Tlxjjaxc0/D9V1WAEmj8TKwUtzTmMogD6gSMs ZS0w== X-Gm-Message-State: AOAM531oYEUOpJwzwHi58YBqEG0jGT3S7IVM90Y0Px592R0fgDjnsWv6 3rF5j1EwrwocnDZnjOd3cA== X-Google-Smtp-Source: ABdhPJwJ3HnlJnV2ngZJFyUd41+SK9bAY0gYR06YRKYq8NPItVwUmrMdWUTQ4AtFe1sC/npigxntYA== X-Received: by 2002:a5d:87c9:: with SMTP id q9mr1812686ios.113.1596488515619; Mon, 03 Aug 2020 14:01:55 -0700 (PDT) Received: from xps15.herring.priv ([64.188.179.252]) by smtp.googlemail.com with ESMTPSA id r6sm9292280iod.7.2020.08.03.14.01.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Aug 2020 14:01:55 -0700 (PDT) From: Rob Herring To: Bjorn Helgaas , Gustavo Pimentel , Jingoo Han , Lorenzo Pieralisi Cc: Binghui Wang , Bjorn Andersson , Fabio Estevam , Jesper Nilsson , Jonathan Chocron , Jonathan Hunter , Kevin Hilman , Kishon Vijay Abraham I , Krzysztof Kozlowski , Kukjin Kim , Kunihiko Hayashi , linux-amlogic@lists.infradead.org, linux-arm-kernel@axis.com, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-omap@vger.kernel.org, linux-pci@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-tegra@vger.kernel.org, Lucas Stach , Masahiro Yamada , Murali Karicheri , NXP Linux Team , Pengutronix Kernel Team , Pratyush Anand , Richard Zhu , Sascha Hauer , Shawn Guo , Stanimir Varbanov , Thierry Reding , Xiaowei Song , Yue Wang Subject: [RFC 14/27] PCI: Also call .add_bus() callback for root bus Date: Mon, 3 Aug 2020 15:01:03 -0600 Message-Id: <20200803210116.3132633-15-robh@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200803210116.3132633-1-robh@kernel.org> References: <20200803210116.3132633-1-robh@kernel.org> MIME-Version: 1.0 Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org Similar to pcibios_add_bus(), call pci_ops.add_bus() when the root bus is added. This allows host bridge drivers to do any setup requiring a bus pointer. There are currently no .add_bus() callbacks, so this is safe to do. Cc: Bjorn Helgaas Signed-off-by: Rob Herring --- drivers/pci/probe.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 8712e595174d..337a3b7766ca 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -935,6 +935,12 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge) pcibios_add_bus(bus); + if (bus->ops->add_bus) { + err = bus->ops->add_bus(bus); + if (WARN_ON(err < 0)) + dev_err(&bus->dev, "failed to add bus: %d\n", err); + } + /* Create legacy_io and legacy_mem files for this bus */ pci_create_legacy_files(bus);