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| author | Bjorn Helgaas <bhelgaas@google.com> | 2023-08-29 11:03:52 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2023-08-29 11:03:52 -0500 |
| commit | f38176d62bce29ea1038d3dfa8e90d05904ae6be (patch) | |
| tree | d52e292ccc040262e7a5b180085b3377cad47b0e /drivers/pci/pci.h | |
| parent | 4b3f481c7af86e678bc5c07bb17b2d2cd2509cd4 (diff) | |
| parent | 9fda4d09905db9ecae17ad741924a7530aa3c96e (diff) | |
Merge branch 'pci/controller/dwc'
- Add an imx6 .host_deinit() callback so we can clean up things like
regulators on probe failure or driver unload (Mark Brown)
- Add PCIE_PME_TO_L2_TIMEOUT_US value for controller drivers that need to
manually synchronize power removal (Frank Li)
- Add generic dwc suspend/resume APIs (dw_pcie_suspend_noirq() and
dw_pcie_resume_noirq()) to be called by controller driver suspend/resume
ops, and a controller callback to send PME_Turn_Off (Frank Li)
- Add layerscape suspend/resume support, including manual
PME_Turn_off/PME_TO_Ack handshake (Hou Zhiqiang, Frank Li)
* pci/controller/dwc:
PCI: layerscape: Add power management support for ls1028a
PCI: dwc: Implement generic suspend/resume functionality
PCI: Add PCIE_PME_TO_L2_TIMEOUT_US L2 ready timeout value
PCI: dwc: Provide deinit callback for i.MX
Diffstat (limited to 'drivers/pci/pci.h')
| -rw-r--r-- | drivers/pci/pci.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index a4c397434057..da8156663c82 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; |