search for: of_pci_find_msi_chip_by_node

...platform drivers that do native MSI, so we only have to change drivers that > do not support any MSI at all yet and that need to be changed anyway in order to add > support. I mean platform device drivers, because we can find the target msi_chip by some platform interfaces(like the existing of_pci_find_msi_chip_by_node()). So we no need to explicitly provide the msi_chip as the function argument. > >> For PCI device, some arm platform already bound the msi_chip to the pci hostbridge, then all >> pci devices under the pci hostbridge deliver their MSI irqs to the target msi_chip. >> And other...

...platform drivers that do native MSI, so we only have to change drivers that > do not support any MSI at all yet and that need to be changed anyway in order to add > support. I mean platform device drivers, because we can find the target msi_chip by some platform interfaces(like the existing of_pci_find_msi_chip_by_node()). So we no need to explicitly provide the msi_chip as the function argument. > >> For PCI device, some arm platform already bound the msi_chip to the pci hostbridge, then all >> pci devices under the pci hostbridge deliver their MSI irqs to the target msi_chip. >> And other...

...native MSI, so we only have to change drivers that > > do not support any MSI at all yet and that need to be changed anyway in order to add > > support. > > I mean platform device drivers, because we can find the target msi_chip by some platform > interfaces(like the existing of_pci_find_msi_chip_by_node()). So we no need to explicitly > provide the msi_chip as the function argument. Right, that works too. I was thinking we might need an interface that allows us to pick a particular msi_chip if there are several alternatives (e.g. one in the GIC and one in the PCI host), but you are right: we s...

On 2014/7/29 22:08, Arnd Bergmann wrote: > On Saturday 26 July 2014 11:08:37 Yijing Wang wrote: >> The series is a draft of generic MSI driver that supports PCI >> and Non-PCI device which have MSI capability. If you're not interested >> it, sorry for the noise. > > I've finally managed to take some time to look at the series. Overall, > the concept

On 2014/7/29 22:08, Arnd Bergmann wrote: > On Saturday 26 July 2014 11:08:37 Yijing Wang wrote: >> The series is a draft of generic MSI driver that supports PCI >> and Non-PCI device which have MSI capability. If you're not interested >> it, sorry for the noise. > > I've finally managed to take some time to look at the series. Overall, > the concept