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Wed, 19 Aug 2020 15:30:34 -0700 (PDT) Received: from xps15 ([64.188.179.249]) by smtp.gmail.com with ESMTPSA id z26sm243083ilf.60.2020.08.19.15.30.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Aug 2020 15:30:34 -0700 (PDT) Received: (nullmailer pid 2077672 invoked by uid 1000); Wed, 19 Aug 2020 22:30:32 -0000 Date: Wed, 19 Aug 2020 16:30:31 -0600 From: Rob Herring To: Marc Zyngier Subject: Re: [PATCH v2] of: address: Work around missing device_type property in pcie nodes Message-ID: <20200819223031.GA2077542@bogus> References: <20200819094255.474565-1-maz@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200819094255.474565-1-maz@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200819_183035_813096_441BC873 X-CRM114-Status: GOOD ( 18.05 ) 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: devicetree@vger.kernel.org, Lorenzo Pieralisi , Heiko Stuebner , kernel-team@android.com, Shawn Lin , linux-kernel@vger.kernel.org, Jiaxun Yang , linux-rockchip@lists.infradead.org, Rob Herring , linux-pci@vger.kernel.org, Bjorn Helgaas , Frank Rowand , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, 19 Aug 2020 10:42:55 +0100, Marc Zyngier wrote: > Recent changes to the DT PCI bus parsing made it mandatory for > device tree nodes describing a PCI controller to have the > 'device_type = "pci"' property for the node to be matched. > > Although this follows the letter of the specification, it > breaks existing device-trees that have been working fine > for years. Rockchip rk3399-based systems are a prime example > of such collateral damage, and have stopped discovering their > PCI bus. > > In order to paper over it, let's add a workaround to the code > matching the device type, and accept as PCI any node that is > named "pcie", > > A warning will hopefully nudge the user into updating their > DT to a fixed version if they can, but the incentive is > obviously pretty small. > > Fixes: 2f96593ecc37 ("of_address: Add bus type match for pci ranges parser") > Suggested-by: Rob Herring > Signed-off-by: Marc Zyngier > --- > drivers/of/address.c | 16 +++++++++++++++- > 1 file changed, 15 insertions(+), 1 deletion(-) > Applied, thanks! _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel