On Fri, Jul 07, 2023 at 04:33:47PM +0530, Krishna chaitanya chundru wrote: > Here we propose this patch series to add support in PCI endpoint > driver to wake up host from D3 states. > > As endpoint cannot send any data/MSI when the D-state is in > D3cold or D3hot. Endpoint needs to bring the device back to D0 > to send any kind of data. > > For this endpoint needs to send inband PME the device is in D3 state or > toggle wake when the device is D3 cold and vaux is not supplied. > > As EPF doestn't know the D-state of the PCI, added a notify op whenever > device state changes. > > Based on the D-state the EPF driver decides to wake host either by > toggling wake or by sending PME. > > When the MHI state is in M3 MHI driver will wakeup the host using the > wakeup op. > > Changes from v2: > - Addressed review comments made by mani. > Changes from v1: > - Moved from RFC patch to regular patch > - Inclueded EPF patch and added a new op patch to notify D-state change > > *** BLURB HERE *** > > Krishna chaitanya chundru (9): > PCI: endpoint: Add dstate change notifier support "D-state" to match the other patches. > PCI: qcom-ep: Add support for D-state change notification > PCI: qcom-ep: Update the D-state log > PCI: epf-mhi: Add support for handling D-state notify from EPC > PCI: endpoint: Add wakeup host API to EPC core > pci: dwc: Add wakeup host op to pci_epc_ops "PCI:" to match the rest. > PCI: qcom-ep: Add wake up host op to dw_pcie_ep_ops > PCI: epf-mhi: Add wakeup host op > bus: mhi: ep: wake up host is the MHI state is in M3 "Wake up host ..." to match previous history of the file. "*if* MHI state is M3"? (Not "is the ...") > Documentation/PCI/endpoint/pci-endpoint.rst | 11 +++++ > drivers/bus/mhi/ep/main.c | 28 ++++++++++++ > drivers/pci/controller/dwc/pcie-designware-ep.c | 12 +++++ > drivers/pci/controller/dwc/pcie-designware.h | 3 ++ > drivers/pci/controller/dwc/pcie-qcom-ep.c | 36 ++++++++++++++- > drivers/pci/endpoint/functions/pci-epf-mhi.c | 28 ++++++++++++ > drivers/pci/endpoint/pci-epc-core.c | 58 +++++++++++++++++++++++++ > include/linux/mhi_ep.h | 4 ++ > include/linux/pci-epc.h | 12 +++++ > include/linux/pci-epf.h | 1 + > 10 files changed, 192 insertions(+), 1 deletion(-) > > -- > 2.7.4 >
