Hi, Previously, I sent a series related the support for the LAN966x PCI device [1] and in particular several patches related irq domain modifications and the introduction of the Microchip LAN966x OIC driver. During the review, it was asked to rework the irq domain modification in order to avoid more wrappers and a new irq_domain_instanciate() function was proposed [2]. Also a patch [3] sent by Maitti Vaittinen can benefit of this new irq_domain_instanciate() function. Even if Maitti's use case is not handle yet in this series, it should not be a big deal add support for it on top of this current series. So, this current series introduces this new irq_domain_instanciate() function and migrate existing wrappers and functions to this new function (patches 1 to 20). It then introduces the first driver that uses directly this new function with the init()/exit() hooks set: the Microchip LAN966x OIC driver (patches 21 to 23). Existing irqchip drivers are not converted yet to use this new API function in the same way as the LAN966x OIC driver does. I prefer to have this series accepted first to avoid doing and re-doing several times the same modifications on existing drivers depending on changes requested on this current series review. [1] https://lore.kernel.org/lkml/20240527161450.326615-1-herve.codina@xxxxxxxxxxx/ [2] https://lore.kernel.org/lkml/8734pr5yq1.ffs@tglx/ [3] https://lore.kernel.org/lkml/bbd219c95f4fe88752aee5f21232480fe9b949fb.1717486682.git.mazziesaccount@xxxxxxxxx/ Best regards, Hervé Herve Codina (23): irqdomain: Introduce irq_domain_free() irqdomain: Introduce irq_domain_instantiate() irqdomain: Fixed unbalanced fwnode get and put irqdomain: Constify parameter in is_fwnode_irqchip() irqdomain: Use a dedicated function to set the domain name irqdomain: Convert __irq_domain_create() to use struct irq_domain_info irqdomain: Handle additional domain flags in irq_domain_instantiate() irqdomain: Handle domain hierarchy parent in irq_domain_instantiate() irqdomain: Use irq_domain_instantiate() for hierarchy domain creation irqdomain: Make __irq_domain_create() return an error code irqdomain: Handle domain bus token in irq_domain_create() irqdomain: Introduce init() and exit() hooks genirq/generic_chip: Introduce irq_domain_{alloc,remove}_generic_chips() genirq/generic_chip: Introduce init() and exit() hooks irqdomain: Add support for generic irq chips creation before publishing a domain irqdomain: Add a resource managed version of irq_domain_instantiate() irqdomain: Convert __irq_domain_add() wrappers to irq_domain_instantiate() irqdomain: Convert domain creation functions to irq_domain_instantiate() um: virt-pci: Use irq_domain_instantiate() irqdomain: Remove __irq_domain_add() dt-bindings: interrupt-controller: Add support for Microchip LAN966x OIC irqchip: Add support for LAN966x OIC MAINTAINERS: Add the Microchip LAN966x OIC driver entry .../microchip,lan966x-oic.yaml | 55 ++++ MAINTAINERS | 6 + arch/um/drivers/virt-pci.c | 16 +- drivers/irqchip/Kconfig | 12 + drivers/irqchip/Makefile | 1 + drivers/irqchip/irq-lan966x-oic.c | 278 ++++++++++++++++++ include/linux/irq.h | 33 +++ include/linux/irqdomain.h | 116 +++++++- kernel/irq/devres.c | 41 +++ kernel/irq/generic-chip.c | 111 +++++-- kernel/irq/irqdomain.c | 243 +++++++++------ 11 files changed, 782 insertions(+), 130 deletions(-) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/microchip,lan966x-oic.yaml create mode 100644 drivers/irqchip/irq-lan966x-oic.c -- 2.45.0
