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[104.188.17.28]) by smtp.gmail.com with ESMTPSA id p9sm27469818pfq.40.2019.11.06.12.23.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Nov 2019 12:23:53 -0800 (PST) Date: Wed, 6 Nov 2019 12:23:51 -0800 From: Bjorn Andersson To: Stanimir Varbanov Cc: Lorenzo Pieralisi , Andrew Murray , Bjorn Helgaas , linux-arm-msm@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH] PCI: qcom: Fix the fixup of PCI_VENDOR_ID_QCOM Message-ID: <20191106202351.GE36595@minitux> References: <20191102002420.4091061-1-bjorn.andersson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.2 (2019-09-21) Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Mon 04 Nov 05:00 PST 2019, Stanimir Varbanov wrote: > Hi Bjorn, > > Thanks for the fix! > > On 11/2/19 2:24 AM, Bjorn Andersson wrote: > > There exists non-bridge PCIe devices with PCI_VENDOR_ID_QCOM, so limit > > the fixup to only affect the PCIe 2.0 (0x106) and PCIe 3.0 (0x107) > > bridges. > > Are you sure that this will not break ops_1_0_0 (Qcom IP rev.: 1.0.0 > Synopsys IP rev.: 4.11a) i.e. apq8084 ? > I am not, I've only tested this on db820c and db845c. Unfortunately I'm unable to find a branch with the necessary dts snippets to test it. Do you perhaps have a branch somewhere? Regards, Bjorn > > > > Cc: stable@vger.kernel.org > > Signed-off-by: Bjorn Andersson > > --- > > drivers/pci/controller/dwc/pcie-qcom.c | 3 ++- > > include/linux/pci_ids.h | 2 ++ > > 2 files changed, 4 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c > > index 35f4980480bb..b91abf4d4905 100644 > > --- a/drivers/pci/controller/dwc/pcie-qcom.c > > +++ b/drivers/pci/controller/dwc/pcie-qcom.c > > @@ -1441,7 +1441,8 @@ static void qcom_fixup_class(struct pci_dev *dev) > > { > > dev->class = PCI_CLASS_BRIDGE_PCI << 8; > > } > > -DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, PCI_ANY_ID, qcom_fixup_class); > > +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, PCIE_DEVICE_ID_QCOM_PCIE20, qcom_fixup_class); > > +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, PCIE_DEVICE_ID_QCOM_PCIE30, qcom_fixup_class); > > > > static struct platform_driver qcom_pcie_driver = { > > .probe = qcom_pcie_probe, > > diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h > > index 21a572469a4e..3d0724ee4d2f 100644 > > --- a/include/linux/pci_ids.h > > +++ b/include/linux/pci_ids.h > > @@ -2413,6 +2413,8 @@ > > #define PCI_VENDOR_ID_LENOVO 0x17aa > > > > #define PCI_VENDOR_ID_QCOM 0x17cb > > +#define PCIE_DEVICE_ID_QCOM_PCIE20 0x0106 > > +#define PCIE_DEVICE_ID_QCOM_PCIE30 0x0107 > > > > #define PCI_VENDOR_ID_CDNS 0x17cd > > > > > > -- > regards, > Stan