From patchwork Fri Feb 16 20:32:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 773829 Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 06099151CD2 for ; Fri, 16 Feb 2024 20:33:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.44 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708115614; cv=none; b=VaW6JcX6Chyigmj/3bmIDyXgc/zDTcamlUwHu/FT72uBMPY8io/mGR4iNzSFsL39bl8Q90Fk+hsNtqREmbIN/0VWYyceNdTLWOH/OXgTVP8YanzNXijyt/6Wts8S4cVyclRLUSoey93mIM9FphKYd1a06RAmcg+SpP//sT/XA8k= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708115614; c=relaxed/simple; bh=ItVOWrm+zmPgwU0jiuXsWbAoFc6imFhaKj9fNGvBoW8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=TNxDKTJlvXg3c5cekoVAim2F0yqVfqYQv4K1GeZuI+ocK7Qj6/iYOpZrsBKgzxXRpEsdaUn5GEUV2/88o3bse9VbWUadHMtF7VGU3M9mS6hvTNoK12TjSUt4gqeuDjHNoTJ+gv5u0EnxBl5pdcJD6nP8Zqw0w+EFN8X3HIfCjMk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=0H0mj5jr; arc=none smtp.client-ip=209.85.128.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="0H0mj5jr" Received: by mail-wm1-f44.google.com with SMTP id 5b1f17b1804b1-4124907f6fcso7059595e9.1 for ; Fri, 16 Feb 2024 12:33:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1708115610; x=1708720410; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=cLRQo0XRS8LZDKEz8aQDPJI24t7vYnPhkxLETHKtHpE=; b=0H0mj5jr4OKi3HUByCC09hQ4mHsGgmT/ol2rT5sRBJo4LXMsR509dnLVPQj88to99o IvqXfP2wG1BMwPRHq9dOyb5uujUUvdqwYww2Ol+fK5o9d0SD6VzxvwVyXRX/UGtD3jXZ GU/wPJDv2XuKlHN7RGhU+1dL8pJo7zo4od3kKv8e2Ln2UAuVJK7Lbnw6GIYyo9RN1D/x f/48r2Iv0iIrjniwH/1YwJ5PnazRK64E7v5y/huSURRtDQihH2H9SzQGZXPPjP1pTUF1 A8+pS7wbNNt9pofbY8fr6k0026ZmPd68kOn4wYRIXruRmkBFGxaW4TE2kXqzPfZIllRD RFcA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1708115610; x=1708720410; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=cLRQo0XRS8LZDKEz8aQDPJI24t7vYnPhkxLETHKtHpE=; b=VZw1cdcpknDZvICPSmXg93fW+G3sVE7MmElRmXhgByKqFkf6vF16d98MjgpxJ2O4UZ tOPxukReQjzx+a2Fm2FNllP5eaOnVfUxNul5KRc9BmhMk4eUHHPv9WwbZHziyVlqeE8z S3/LtmZz4NDz+1T2+0h3WDfQcXxX5NClsUQkNVIeMpMGtJKqbJYRrgADnU3Lz+NJhNgk xswip0UAQZQiqI2LdY13vui/nRmHRLoPDaQYAC4mfnW6MPo/ZiG2ihu1y9c3uJlU0CNI arXyo2ZiGvdx4IvuvOk3OjI0uLpycyjqxw+GdB+LzOcR58dST+f1n3xA/KrASbVqAAY6 U0dw== X-Gm-Message-State: AOJu0YzR4ZCXOGFaUMdR5Vu5xTsyNPLSs2oZLjSuqa9qfadImX1OOdch KsB63rRCMrty2V1K3K3oNOpgQgNoi55a7y/kRZQw0AhnRJSRpDmcohLiYDOWbIQ= X-Google-Smtp-Source: AGHT+IEIxZ+2uB3UEcdhGVTyTJDaWzytlIE0jDJvcLHgbNngP62RD3/E1pF6wGg8FGrlRiGNZ99JNg== X-Received: by 2002:a05:600c:3c8a:b0:411:9508:e237 with SMTP id bg10-20020a05600c3c8a00b004119508e237mr4998629wmb.19.1708115610266; Fri, 16 Feb 2024 12:33:30 -0800 (PST) Received: from brgl-uxlite.home ([2a01:cb1d:334:ac00:7758:12d:16:5f19]) by smtp.gmail.com with ESMTPSA id m5-20020a05600c4f4500b0041253d0acd6sm1420528wmq.47.2024.02.16.12.33.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Feb 2024 12:33:29 -0800 (PST) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v5 12/18] PCI/pwrctl: create platform devices for child OF nodes of the port node Date: Fri, 16 Feb 2024 21:32:09 +0100 Message-Id: <20240216203215.40870-13-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240216203215.40870-1-brgl@bgdev.pl> References: <20240216203215.40870-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Bartosz Golaszewski In preparation for introducing PCI device power control - a set of library functions that will allow powering-up of PCI devices before they're detected on the PCI bus - we need to populate the devices defined on the device-tree. We are reusing the platform bus as it provides us with all the infrastructure we need to match the pwrctl drivers against the compatibles from OF nodes. These platform devices will be probed by the driver core and bound to the PCI pwrctl drivers we'll introduce later. Signed-off-by: Bartosz Golaszewski --- drivers/pci/bus.c | 9 ++++++++- drivers/pci/remove.c | 2 ++ 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 826b5016a101..17ab41094c4e 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include @@ -342,8 +343,14 @@ void pci_bus_add_device(struct pci_dev *dev) */ pcibios_bus_add_device(dev); pci_fixup_device(pci_fixup_final, dev); - if (pci_is_bridge(dev)) + if (pci_is_bridge(dev)) { of_pci_make_dev_node(dev); + retval = of_platform_populate(dev->dev.of_node, NULL, NULL, + &dev->dev); + if (retval) + pci_err(dev, "failed to populate child OF nodes (%d)\n", + retval); + } pci_create_sysfs_dev_files(dev); pci_proc_attach_device(dev); pci_bridge_d3_update(dev); diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c index d749ea8250d6..fc9db2805888 100644 --- a/drivers/pci/remove.c +++ b/drivers/pci/remove.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include #include +#include #include "pci.h" static void pci_free_resources(struct pci_dev *dev) @@ -22,6 +23,7 @@ static void pci_stop_dev(struct pci_dev *dev) device_release_driver(&dev->dev); pci_proc_detach_device(dev); pci_remove_sysfs_dev_files(dev); + of_platform_depopulate(&dev->dev); of_pci_remove_node(dev); pci_dev_assign_added(dev, false);