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

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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>
This commit is contained in:
Marc Zyngier 2024-12-04 15:01:44 +00:00 committed by Bjorn Helgaas
parent ce4c430172
commit 477ac7b0a7
2 changed files with 6 additions and 0 deletions
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2
drivers/pci/controller/pci-host-common.c
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@ -75,6 +75,8 @@ int pci_host_common_probe(struct platform_device *pdev)
bridge->sysdata = cfg; bridge->sysdata = cfg;
bridge->ops = (struct pci_ops *)&ops->pci_ops; bridge->ops = (struct pci_ops *)&ops->pci_ops;
bridge->enable_device = ops->enable_device;
bridge->disable_device = ops->disable_device;
bridge->msi_domain = true; bridge->msi_domain = true;
return pci_host_probe(bridge); return pci_host_probe(bridge);

4
include/linux/pci-ecam.h
View File

@ -45,6 +45,10 @@ struct pci_ecam_ops {
unsigned int bus_shift; unsigned int bus_shift;
struct pci_ops pci_ops; struct pci_ops pci_ops;
int (*init)(struct pci_config_window *); 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 *);
}; };
/* /*