Commit 477ac7b0 authored Dec 04, 2024 by Marc Zyngier Committed by Bjorn Helgaas Jan 15, 2025

PCI: host-generic: Allow {en,dis}able_device() to be provided via pci_ecam_ops

In order to let host controller drivers using the host-generic
infrastructure use the {en,dis}able_device() callbacks that can be used to
configure sideband RID mapping hardware, provide these two callbacks as
part of the pci_ecam_ops structure.

Link: https://lore.kernel.org/r/20241204150145.800408-2-maz@kernel.org


Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

parent ce4c4301

drivers/pci/controller/pci-host-common.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -75,6 +75,8 @@ int pci_host_common_probe(struct platform_device *pdev)

		bridge->sysdata = cfg;
		bridge->ops = (struct pci_ops *)&ops->pci_ops;
		bridge->enable_device = ops->enable_device;
		bridge->disable_device = ops->disable_device;
		bridge->msi_domain = true;

		return pci_host_probe(bridge);

include/linux/pci-ecam.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -45,6 +45,10 @@ struct pci_ecam_ops {
		unsigned int bus_shift;
		struct pci_ops pci_ops;
		int (init)(struct pci_config_window );
		int (enable_device)(struct pci_host_bridge ,
		struct pci_dev *);
		void (disable_device)(struct pci_host_bridge ,
		struct pci_dev *);
		};

		/*