Hi Christian, On 17/05/21 6:45 pm, Christian Gmeiner wrote: > Hi > > Am Do., 25. März 2021 um 10:04 Uhr schrieb Kishon Vijay Abraham I > <kishon@xxxxxx>: >> >> Keystone driver is used by K2G and AM65 and the interrupt handling of >> both of them is different. Add support to handle legacy interrupt for >> both K2G and AM65 here. >> >> Some discussions regarding this was already done here [1] and it was >> around having pulse interrupt for legacy interrupt. >> >> The HW interrupt line connected to GIC is a pulse interrupt whereas >> the legacy interrupts by definition is level interrupt. In order to >> provide level interrupt functionality to edge interrupt line, PCIe >> in AM654 has provided IRQ_EOI register. When the SW writes to IRQ_EOI >> register after handling the interrupt, the IP checks the state of >> legacy interrupt and re-triggers pulse interrupt invoking the handler >> again. >> >> Patch series also includes converting AM65 binding to YAML and an >> errata applicable for i2037. >> >> [1] -> https://lore.kernel.org/linux-arm-kernel/20190221101518.22604-4-kishon@xxxxxx/ >> >> Kishon Vijay Abraham I (6): >> dt-bindings: PCI: ti,am65: Add PCIe host mode dt-bindings for TI's >> AM65 SoC >> dt-bindings: PCI: ti,am65: Add PCIe endpoint mode dt-bindings for TI's >> AM65 SoC >> irqdomain: Export of_phandle_args_to_fwspec() >> PCI: keystone: Convert to using hierarchy domain for legacy interrupts >> PCI: keystone: Add PCI legacy interrupt support for AM654 >> PCI: keystone: Add workaround for Errata #i2037 (AM65x SR 1.0) >> >> .../bindings/pci/ti,am65-pci-ep.yaml | 80 ++++ >> .../bindings/pci/ti,am65-pci-host.yaml | 111 ++++++ >> drivers/pci/controller/dwc/pci-keystone.c | 343 +++++++++++++----- >> include/linux/irqdomain.h | 2 + >> kernel/irq/irqdomain.c | 6 +- >> 5 files changed, 440 insertions(+), 102 deletions(-) >> create mode 100644 Documentation/devicetree/bindings/pci/ti,am65-pci-ep.yaml >> create mode 100644 Documentation/devicetree/bindings/pci/ti,am65-pci-host.yaml >> >> -- >> 2.17.1 >> > > Is there somewhere an updated version of this patch series? I haven't posted an updated version yet. My plan was to re-work and post it by early June. Thanks Kishon
