From patchwork Wed Apr 10 12:46:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 13624270 Received: from mail-wm1-f54.google.com (mail-wm1-f54.google.com [209.85.128.54]) (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 A240A16EC11 for ; Wed, 10 Apr 2024 12:47:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.54 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712753232; cv=none; b=T7DtR4Fd932/p61t4r+e761QA1vpdqvrb1puBB6gTPImrin3w2sGOQyH3NpGv2R2NO99ld5P1KYjCXqpulcPHXbVTO04uS8AzLdocbxaVRlD7Wgs70+mV7JoJlT4MvRhkvVnyFBoq1H8vY1PO/BEkdMjnePWUQFRKfmYdXFE53A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712753232; c=relaxed/simple; bh=2Y3Xvp2nR9CrqURawAV1boG93szDMz9XddJ62ra2nbw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=VSaLa+naPFKaDOdeiihiYeR0N+K2yXVTTVglf4LnF/pL/9jOhXqFMGFByJbu2SyavPih4koMYQw+xSXjQfYVIl3Dr63oGQcyBDbNM16x5HzUi4vugazZFjKTM6dvuuOW1N0xeSS3XQTlDQj/6BOxBAJ0sqG/RR8mIKvv+8Xe520= 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=aGrHU6uh; arc=none smtp.client-ip=209.85.128.54 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="aGrHU6uh" Received: by mail-wm1-f54.google.com with SMTP id 5b1f17b1804b1-416c4767b07so5741005e9.0 for ; Wed, 10 Apr 2024 05:47:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1712753227; x=1713358027; 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=a3VKydEHB8lHvIONMbgchmsCTkAjKSCt8ZGRsExnd9A=; b=aGrHU6uhyAXK0lc6uLYDSmp4ZoceevJGRArYfnkuaV24Ee5Fsot2RkqXst/DhysTP7 2YSSE986wLin6HMG9KHaNAAIYDO+sEmz07jp3DaB0+FRhUmlX+zq4r6pfrFJCzEuqfJl ii0EctfqZHEKtL9jgaJTI2t5kvPrOu9qqMyj3cHT4VWDGdKaq4GppCFegsaizR4hAU76 MVBHygPC1HYH8cRuHOLZunJfe1H5Rqzlm2bOuPD4WxMbnxI25780JUp0UI/uALDulaQo uEo2tB4nAWuUzJQfL28Hn+3qn9+CHJuBEJnhn93tTYZmK1hnVSvCQMIOmK37inawPHAm j/7Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712753227; x=1713358027; 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=a3VKydEHB8lHvIONMbgchmsCTkAjKSCt8ZGRsExnd9A=; b=en9qW6Zvw7CAUH7wHtmeyrhth9m9WYeqlE4DzeQMx3MJ0BflbGCEXElRCw9oPi5YWb S24PlfiDLYqEqGSRh7LLBON1VTwGd8ZaZuXnXXdIr5j9HD2RzMXbx1boDxhuCzWvEJBp u02qnMuRUF5kEJOau/TYaOakN9afBqV3QgCJy9k7bhhvVQdqlqEW+OZOnSJzfrxrl/Fe zWM4CnCp88zvhtDzUwUj1EjfBhQtI8SGu9X6lUXnnkxOnTV2racfP52OF/P2XeqzB5ms n/D1ogKIffB4ohDYUbrPzL27jyUlCuNG2DGNSd3wr3sFyghN8AR/RJtgG8uMbXvZRv/B Yhkw== X-Forwarded-Encrypted: i=1; AJvYcCU4/7gSgPZ2Eq7+n4gR/07Qd2Q2EVi2S5RABji44TD4kitG4FiRT+CzmUVEvsq9J63t7sAHssRWcOvVtNTBiR3wq2upgUk0OlkrpJnXfQ== X-Gm-Message-State: AOJu0YymoAhkpPGDayAf9qqcl0esIs7PGYXR56c9zyJu154Xlv4S/yLU O6MBTsPiisYfuWL/gNEKdjnjVj0ExUet/izGU3pVM7TUUiBPfkj18DeymoY6Bfs= X-Google-Smtp-Source: AGHT+IHJF6LcSwDmHG05PJXSHj73CCP4M9gnnRg/+VfczmccvVGh4FNtbdoeulp4qepsLWmvHAhUNw== X-Received: by 2002:a05:600c:1f0c:b0:416:c904:a26a with SMTP id bd12-20020a05600c1f0c00b00416c904a26amr1525110wmb.7.1712753226816; Wed, 10 Apr 2024 05:47:06 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:6908:7e99:35c9:d585]) by smtp.gmail.com with ESMTPSA id v13-20020a05600c444d00b0041663450a4asm2150929wmn.45.2024.04.10.05.47.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Apr 2024 05:47:06 -0700 (PDT) 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 , Amit Pundir , Xilin Wu 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 v7 11/16] PCI/pwrctl: create platform devices for child OF nodes of the port node Date: Wed, 10 Apr 2024 14:46:23 +0200 Message-Id: <20240410124628.171783-12-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240410124628.171783-1-brgl@bgdev.pl> References: <20240410124628.171783-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-arm-msm@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, 11 insertions(+) diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 826b5016a101..3e3517567721 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include @@ -354,6 +355,14 @@ void pci_bus_add_device(struct pci_dev *dev) pci_warn(dev, "device attach failed (%d)\n", retval); pci_dev_assign_added(dev, true); + + if (pci_is_bridge(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); + } } EXPORT_SYMBOL_GPL(pci_bus_add_device); 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);