Message ID | 20230807165238.569297-2-Frank.Li@nxp.com |
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State | Superseded |
Headers | show
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Mon, 7 Aug 2023 16:53:05 +0000 From: Frank Li <Frank.Li@nxp.com> To: helgaas@kernel.org Cc: Frank.li@nxp.com, bhelgaas@google.com, devicetree@vger.kernel.org, gustavo.pimentel@synopsys.com, imx@lists.linux.dev, kw@linux.com, leoyang.li@nxp.com, linux-arm-kernel@lists.infradead.org, linux-imx@nxp.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, lorenzo.pieralisi@arm.com, lpieralisi@kernel.org, mani@kernel.org, manivannan.sadhasivam@linaro.org, minghuan.lian@nxp.com, mingkai.hu@nxp.com, robh+dt@kernel.org, roy.zang@nxp.com, shawnguo@kernel.org, zhiqiang.hou@nxp.com Subject: [PATCH v10 resent 1/3] PCI: Add macro PCIE_PME_TO_L2_TIMEOUT_US Date: Mon, 7 Aug 2023 12:52:36 -0400 Message-Id: <20230807165238.569297-2-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230807165238.569297-1-Frank.Li@nxp.com> References: <20230807165238.569297-1-Frank.Li@nxp.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SJ0PR05CA0093.namprd05.prod.outlook.com (2603:10b6:a03:334::8) To AM6PR04MB4838.eurprd04.prod.outlook.com (2603:10a6:20b:4::16) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM6PR04MB4838:EE_|DBAPR04MB7318:EE_ X-MS-Office365-Filtering-Correlation-Id: 2d55efd5-9710-433c-3383-08db9766c528 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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[v10,resent,1/3] PCI: Add macro PCIE_PME_TO_L2_TIMEOUT_US
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diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index a4c3974340576..da8156663c825 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -13,6 +13,12 @@ #define PCIE_LINK_RETRAIN_TIMEOUT_MS 1000 +/* + * PCIe r6.0, sec 5.3.3.2.1 <PME Synchronization> + * Recommends 1ms to 10ms timeout to check L2 ready. + */ +#define PCIE_PME_TO_L2_TIMEOUT_US 10000 + extern const unsigned char pcie_link_speed[]; extern bool pci_early_dump;