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PCI: Add parent device field to ECAM struct pci_config_window

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Add a parent device field to struct pci_config_window.  The parent is not
saved now, but will be useful to save it in some cases.  For ACPI on ARM64,
it can be used to setup ACPI companion and domain.

Since the parent dev is in struct pci_config_window now, we need not pass
it to the init function as a separate argument.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
This commit is contained in:
Jayachandran C
2016-06-10 21:55:10 +02:00
committed by Bjorn Helgaas
parent 80955f9ee5
commit 5c3d14f76f
3 changed files with 6 additions and 4 deletions
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3
drivers/pci/host/pci-thunder-pem.c
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@@ -284,8 +284,9 @@ static int thunder_pem_config_write(struct pci_bus *bus, unsigned int devfn,
return pci_generic_config_write(bus, devfn, where, size, val);
}
static int thunder_pem_init(struct device *dev, struct pci_config_window *cfg)
static int thunder_pem_init(struct pci_config_window *cfg)
{
struct device *dev = cfg->parent;
resource_size_t bar4_start;
struct resource *res_pem;
struct thunder_pem_pci *pem_pci;