From patchwork Sat Aug 15 12:51:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 11715427 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 668E7109B for ; Sat, 15 Aug 2020 12:51:57 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3EFDC23122 for ; Sat, 15 Aug 2020 12:51:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="eQnaJ9q8"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="kN7OhMiT" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3EFDC23122 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=sLRu1+uWlM78ZGesDn0Xm+QyQrYx6nZX2HrBkqd7w74=; b=eQnaJ9q8ZWYxO/SbeMOrrHJsxy l19MgrkpmYREAJyHBFLlVS8MOE0nIvl6QeYAQ6GPC7Lpyq7385BmCR8ntCciTiNqBkO4BFPXp/rif dTbzXR8b9KAlCeiSmcEtZcYvCbiD73WmESmvUe8Av+SrcOVzaFSiEyf7b6BlpKZtEIp7lgOwko7xi 8TLUR50WouKOzj47IFuEuUbeEF+oAt5iopv1z3Eh2xfUfZTgPPp6OGmQ2dZpj62AogXwXF0gMaihS vXXucMihk1AxbX7lqUglZ7MIqgT0GSRBV0ZIuQDtMlEvNJN/VPKPRVdx5QzyC3J9E4Qf2E+gYNDZv i4W8HMqw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k6vek-000195-4c; Sat, 15 Aug 2020 12:51:30 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k6veg-000182-Di; Sat, 15 Aug 2020 12:51:27 +0000 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C50BF2311E; Sat, 15 Aug 2020 12:51:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597495884; bh=4abrb1hIgzDOMolRWfF5UG90g9XBAir7ef4PB2uBVuU=; h=From:To:Cc:Subject:Date:From; b=kN7OhMiT916olPv4+/4DmqTTNi0+ib9YnLbL5+XPnMEpaDmhtOeoeDG0jrr5tj5C+ NzsIns2VxT1xD/JLjLmXSVqijaSFkbFpjUD8l2oqhH5dTIXsf+elWnWsbbVk1NS17K xzuTzTQEnSRtkrVTSLMWfhoK3Or9FDI5mvXjrYC8= Received: from 78.163-31-62.static.virginmediabusiness.co.uk ([62.31.163.78] helo=why.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1k6vec-002Kds-Va; Sat, 15 Aug 2020 13:51:23 +0100 From: Marc Zyngier To: linux-pci@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/2] PCI: rockchip: Fix PCIe probing in 5.9 Date: Sat, 15 Aug 2020 13:51:10 +0100 Message-Id: <20200815125112.462652-1-maz@kernel.org> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: linux-pci@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, shawn.lin@rock-chips.com, lorenzo.pieralisi@arm.com, robh@kernel.org, bhelgaas@google.com, heiko@sntech.de, kernel-team@android.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200815_085126_704832_3EDAB93A X-CRM114-Status: GOOD ( 14.72 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [198.145.29.99 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rob Herring , Lorenzo Pieralisi , Heiko Stuebner , Shawn Lin , Bjorn Helgaas , kernel-team@android.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Recent changes to the way PCI DT nodes are parsed are now enforcing the presence of a "device_type" property, which has been mandated since... forever. This has the unfortunate effect of breaking non-compliant systems, and those using the Rockchip PCIe driver are amongst the victims. Oh well. In order to keep users happy as well as my own machines up and running, let's paper over the problem by detecting a broken DT from the driver itself, and inserting the missing property at runtime. For a good measure, a second patch fixes the DT, but the chances of such a fix being deployed at this stage are pretty slim, so the above hack is in for the long run. Marc Zyngier (2): PCI: rockchip: Work around missing device_type property in DT arm64: dts: rockchip: Fix PCIe DT properties arch/arm64/boot/dts/rockchip/rk3399.dtsi | 2 +- drivers/pci/controller/pcie-rockchip-host.c | 29 +++++++++++++++++++++ 2 files changed, 30 insertions(+), 1 deletion(-)