[PATCH v3 1/1] PCI: of: Propagate firmware node by calling device_set_node()

From: Andy Shevchenko
Date: Fri Apr 21 2023 - 06:10:05 EST


Insulate pci_set_of_node() and pci_set_bus_of_node() from possible
changes to fwnode_handle implementation by using device_set_node()
instead of open-coding dev->dev.fwnode assignments.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
v3: fixed compilation issue
v2: rewritten commit message as suggested (Bjorn), rebased on the latest code

drivers/pci/of.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/pci/of.c b/drivers/pci/of.c
index 4c2ef2e28fb5..82bff748cd4d 100644
--- a/drivers/pci/of.c
+++ b/drivers/pci/of.c
@@ -39,16 +39,14 @@ int pci_set_of_node(struct pci_dev *dev)
return -ENODEV;
}

- dev->dev.of_node = node;
- dev->dev.fwnode = &node->fwnode;
+ device_set_node(&dev->dev, of_fwnode_handle(node));
return 0;
}

void pci_release_of_node(struct pci_dev *dev)
{
of_node_put(dev->dev.of_node);
- dev->dev.of_node = NULL;
- dev->dev.fwnode = NULL;
+ device_set_node(&dev->dev, NULL);
}

void pci_set_bus_of_node(struct pci_bus *bus)
@@ -63,17 +61,13 @@ void pci_set_bus_of_node(struct pci_bus *bus)
bus->self->external_facing = true;
}

- bus->dev.of_node = node;
-
- if (bus->dev.of_node)
- bus->dev.fwnode = &bus->dev.of_node->fwnode;
+ device_set_node(&bus->dev, of_fwnode_handle(node));
}

void pci_release_bus_of_node(struct pci_bus *bus)
{
of_node_put(bus->dev.of_node);
- bus->dev.of_node = NULL;
- bus->dev.fwnode = NULL;
+ device_set_node(&bus->dev, NULL);
}

struct device_node * __weak pcibios_get_phb_of_node(struct pci_bus *bus)
--
2.40.0.1.gaa8946217a0b