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Tue, 26 Sep 2023 14:05:01 +0000 From: Frank Li To: hch@infradead.org Cc: Frank.Li@nxp.com, bhelgaas@google.com, christophe.jaillet@wanadoo.fr, imx@lists.linux.dev, kw@linux.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, lpieralisi@kernel.org, minghuan.Lian@nxp.com, mingkai.hu@nxp.com, robh@kernel.org, roy.zang@nxp.com Subject: [PATCH v3 1/1] PCI: layerscape-ep: set 64-bit DMA mask Date: Tue, 26 Sep 2023 10:04:45 -0400 Message-Id: <20230926140445.3855365-1-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 X-ClientProxiedBy: BYAPR11CA0082.namprd11.prod.outlook.com (2603:10b6:a03:f4::23) To AM6PR04MB4838.eurprd04.prod.outlook.com (2603:10a6:20b:4::16) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM6PR04MB4838:EE_|DBAPR04MB7429:EE_ X-MS-Office365-Filtering-Correlation-Id: 185fcf7b-2531-423c-4cc6-08dbbe999361 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Signed-off-by: Guanhua Gao Signed-off-by: Hou Zhiqiang Signed-off-by: Frank Li Reviewed-by: Christoph Hellwig Acked-by: Manivannan Sadhasivam Acked-by: Roy Zang --- Notes: change from v2 to v3 - remove check return value of dma_set_mask_and_coherent. 64bit mask always return success. - remove redundate comments change from v1 to v2 - Remove 32bit DMA mask set. drivers/pci/controller/dwc/pci-layerscape-ep.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c b/drivers/pci/controller/dwc/pci-layerscape-ep.c index de4c1758a6c3..2c2c9aaa8700 100644 --- a/drivers/pci/controller/dwc/pci-layerscape-ep.c +++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c @@ -249,6 +249,8 @@ static int __init ls_pcie_ep_probe(struct platform_device *pdev) pcie->big_endian = of_property_read_bool(dev->of_node, "big-endian"); + dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)); + platform_set_drvdata(pdev, pcie); ret = dw_pcie_ep_init(&pci->ep);