Message ID | 20230807141833.564479-2-Frank.Li@nxp.com |
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State | New |
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dwc general suspend/resume functionality
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Commit Message
Frank Li
Aug. 7, 2023, 2:18 p.m. UTC
Introduce the PCIE_PME_TO_L2_TIMEOUT_US macro to facilitate checking the L2 ready timeout in the PCI subsystem. Acked-by: Manivannan Sadhasivam <mani@kernel.org> Signed-off-by: Frank Li <Frank.Li@nxp.com> --- drivers/pci/pci.h | 6 ++++++ 1 file changed, 6 insertions(+)
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;