powerpc/pci: Make both ppc32 and ppc64 use sysdata for pci_controller
Currently, ppc32 uses sysdata for the pci_controller pointer, and
ppc64 uses it to hold the device_node pointer. This patch moves the
of_node pointer into (struct pci_bus*)->dev.of_node and
(struct pci_dev*)->dev.of_node so that sysdata can be converted to always
use the pci_controller pointer instead. It also fixes up the
allocating of pci devices so that the of_node pointer gets assigned
consistently and increments the ref count.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c
index d56b35e..2985268 100644
--- a/arch/powerpc/kernel/pci_dn.c
+++ b/arch/powerpc/kernel/pci_dn.c
@@ -161,7 +161,7 @@
/*
* This is the "slow" path for looking up a device_node from a
* pci_dev. It will hunt for the device under its parent's
- * phb and then update sysdata for a future fastpath.
+ * phb and then update of_node pointer.
*
* It may also do fixups on the actual device since this happens
* on the first read/write.
@@ -170,16 +170,19 @@
* In this case it may probe for real hardware ("just in case")
* and add a device_node to the device tree if necessary.
*
+ * Is this function necessary anymore now that dev->dev.of_node is
+ * used to store the node pointer?
+ *
*/
struct device_node *fetch_dev_dn(struct pci_dev *dev)
{
- struct device_node *orig_dn = dev->sysdata;
+ struct device_node *orig_dn = dev->dev.of_node;
struct device_node *dn;
unsigned long searchval = (dev->bus->number << 8) | dev->devfn;
dn = traverse_pci_devices(orig_dn, is_devfn_node, (void *)searchval);
if (dn)
- dev->sysdata = dn;
+ dev->dev.of_node = dn;
return dn;
}
EXPORT_SYMBOL(fetch_dev_dn);