Re: [PATCH v2] PCI: dwc: Add suspend_poweroff flag for platforms with RC power loss
Manivannan Sadhasivam <[email protected]>
| Newsgroups | org.kernel.vger.linux-pci,dev.linux.lists.imx,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <178534186606.891279.14151884519982223229.b4-ty@b4> |
On Fri, 17 Jul 2026 15:41:21 +0800, [email protected] wrote: > Some platforms like i.MX power off their PCIe RC controllers during > system suspend, requiring full re-initialization on resume. These > platforms need to enter L2 state to properly notify endpoints before > power loss. > > According to PCIe base spec r7.0, sec 5.2, the system software should > transition the device into D3Hot before broadcasting the PME_Turn_Off > message to initiate L2 entry. However, some endpoint devices fail the > D3cold capability check in pci_host_common_d3cold_possible(), which > would normally prevent L2 entry. > > [...] Applied, thanks! [1/1] PCI: dwc: Add suspend_poweroff flag for platforms with RC power loss commit: 5a53462aba161e809de90d45f2a39510a88b6ede Best regards, -- மணிவண்ணன் சதாசிவம்