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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 From: Richard Zhu Fix i.MX8MP PCIe EP can't trigger MSI issue. There is one 64Kbytes minimal requirement on i.MX8M PCIe outbound region configuration. EP uses Bar0 to set the outboud region to configure the MSI setting. Set the page_size to "epc_features->align" to meet the requirement, let the MSI can be triggered successfully. Fixes: 1bd0d43dcf3b ("PCI: imx6: Clean up addr_space retrieval code") Signed-off-by: Richard Zhu Acked-by: Jason Liu Signed-off-by: Frank Li --- drivers/pci/controller/dwc/pci-imx6.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index e43eda6b33ca7..6c4d25b92225e 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -1118,6 +1118,8 @@ static int imx6_add_pcie_ep(struct imx6_pcie *imx6_pcie, if (imx6_check_flag(imx6_pcie, IMX6_PCIE_FLAG_SUPPORT_64BIT)) dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)); + ep->page_size = imx6_pcie->drvdata->epc_features->align; + ret = dw_pcie_ep_init(ep); if (ret) { dev_err(dev, "failed to initialize endpoint\n"); -- 2.34.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel