Introduce pcibios_fixup_dev to allow platform-specific code to perform
final setup of a PCI device after it has been registered in sysfs.
The default implementation is a no-op.
Signed-off-by: Shawn Anastasio <shawn@xxxxxxxxxx>
---
drivers/pci/probe.c | 14 ++++++++++++++
include/linux/pci.h | 1 +
2 files changed, 15 insertions(+)
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index a3c7338fad86..14eb7ee38794 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -2652,6 +2652,17 @@ static void pci_set_msi_domain(struct pci_dev *dev)
dev_set_msi_domain(&dev->dev, d);
}
+/**
+ * pcibios_fixup_dev - Platform-specific device setup
+ * @dev: Device to set up
+ *
+ * Default empty implementation. Replace with an architecture-specific
+ * setup routine, if necessary.
+ */
+void __weak pcibios_fixup_dev(struct pci_dev *dev)
+{
+}
+
void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
{
int ret;
@@ -2699,6 +2710,9 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
dev->match_driver = false;
ret = device_add(&dev->dev);
WARN_ON(ret < 0);
+
+ /* Allow platform-specific code to perform final setup of device */
+ pcibios_fixup_dev(dev);
}
struct pci_dev *pci_scan_single_device(struct pci_bus *bus, int devfn)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 82e4cd1b7ac3..83eb0e241137 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -960,6 +960,7 @@ void pcibios_bus_add_device(struct pci_dev *pdev);
void pcibios_add_bus(struct pci_bus *bus);
void pcibios_remove_bus(struct pci_bus *bus);
void pcibios_fixup_bus(struct pci_bus *);
+void pcibios_fixup_dev(struct pci_dev *);
int __must_check pcibios_enable_device(struct pci_dev *, int mask);
/* Architecture-specific versions may override this (weak) */
char *pcibios_setup(char *str);
--
2.20.1
