[0/3] Fix handling of multi-level OF nodes

Message

Mauro Carvalho Chehab Aug. 5, 2021, 8:28 a.m. UTC

Hi Rob,

This series address the issues related to not add all of_node data at sysfs.

Patch 1 is the real fix.
Patch 2 just changes the order of init, in order to allow printing what's
happening when registering a device;
Patch 3 is just debug.

With patch 1 applied, the sysfs nodes seem to match the PCI configuration:

$ find /sys/devices/platform/soc/f4000000.pcie/ -name of_node
/sys/devices/platform/soc/f4000000.pcie/of_node
/sys/devices/platform/soc/f4000000.pcie/pci0000:00/0000:00:00.0/of_node
/sys/devices/platform/soc/f4000000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/0000:02:07.0/of_node
/sys/devices/platform/soc/f4000000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/0000:02:07.0/pci_bus/0000:06/of_node
/sys/devices/platform/soc/f4000000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/pci_bus/0000:02/of_node
/sys/devices/platform/soc/f4000000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/0000:02:05.0/of_node
/sys/devices/platform/soc/f4000000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/0000:02:05.0/pci_bus/0000:05/of_node
/sys/devices/platform/soc/f4000000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/0000:02:01.0/of_node
/sys/devices/platform/soc/f4000000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/0000:02:01.0/pci_bus/0000:03/of_node
/sys/devices/platform/soc/f4000000.pcie/pci0000:00/0000:00:00.0/pci_bus/0000:01/of_node
/sys/devices/platform/soc/f4000000.pcie/pci0000:00/pci_bus/0000:00/of_node

Mauro Carvalho Chehab (3):
  PCI: of: Fix handling of multi-level PCI devices
  PCI: of: Setup PCI before setting the OF node
  PCI: of: Add some debug printks to track problems with of_node setup

 drivers/pci/of.c    | 9 +++++++++
 drivers/pci/probe.c | 5 ++---
 2 files changed, 11 insertions(+), 3 deletions(-)