linux-kernel - [PATCH v1 1/1] PCI: of: Propagate firmware node

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Message-Id: <20230412131520.52840-1-andriy.shevchenko@linux.intel.com>
Date:   Wed, 12 Apr 2023 16:15:20 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Pali Rohár <pali@...nel.org>,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 1/1] PCI: of: Propagate firmware node

Propagate firmware node by using a specific API call, i.e. device_set_node().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/pci/of.c | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)

diff --git a/drivers/pci/of.c b/drivers/pci/of.c
index 196834ed44fe..4bba00dfbfc5 100644
--- a/drivers/pci/of.c
+++ b/drivers/pci/of.c
@@ -18,19 +18,18 @@
 #ifdef CONFIG_PCI
 void pci_set_of_node(struct pci_dev *dev)
 {
+	struct device_node *node;
+
 	if (!dev->bus->dev.of_node)
 		return;
-	dev->dev.of_node = of_pci_find_child_device(dev->bus->dev.of_node,
-						    dev->devfn);
-	if (dev->dev.of_node)
-		dev->dev.fwnode = &dev->dev.of_node->fwnode;
+	node = of_pci_find_child_device(dev->bus->dev.of_node, dev->devfn);
+	device_set_node(&dev->dev, of_fwnode_handle(node));
 }
 
 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)
@@ -45,17 +44,13 @@ 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