[PATCH v5 00/15] Add functionality to ipu3-cio2 driver allowing software_node connections to sensors on platforms designed for Windows

[Daniel Scally]

Hello all

v4:
https://lore.kernel.org/linux-media/20210103231235.792999-1-djrscally@xxxxxxxxx/T/#m11b7cb977e1b73fba1e625c3d6a189e2943a7783
v3:
https://lore.kernel.org/linux-media/20201224010907.263125-1-djrscally@xxxxxxxxx/T/#m37b831bb2b406917d6db5da9acf9ed35df65d72d
v2:
https://lore.kernel.org/linux-media/20201217234337.1983732-1-djrscally@xxxxxxxxx/T/#md93fd090009b42a6a98aed892aff0d38cf07e0cd
v1:
https://lore.kernel.org/linux-media/20201130133129.1024662-1-djrscally@xxxxxxxxx/T/#m91934e12e3d033da2e768e952ea3b4a125ee3e67

This series is to start adding support for webcams on laptops with ACPI tables
designed for use with CIO2 on Windows. This series extends the ipu3-cio2
driver to allow for patching the firmware via software_nodes if endpoints
aren't defined by ACPI.

I'm hopeful that most or all of this series could get picked up for 5.12.
We touch a few different areas (listed below), but I think the easiest
approach would be to merge everything through media tree. Rafael, Greg,
Mauro and Sergey; are you ok with that plan, or would you prefer a
different approach? Mauro; if that plan is ok (and of course assuming that
the rest of the patches are acked by their respective maintainers) could
we get a dedicated feature branch just in case the following series ends
up being ready in time too?

lib
  lib/test_printf.c: Use helper function to unwind array of
    software_nodes

base
  software_node: Fix refcounts in software_node_get_next_child()
  property: Return true in fwnode_device_is_available for NULL ops
  property: Call fwnode_graph_get_endpoint_by_id() for fwnode->secondary
  software_node: Enforce parent before child ordering of nodes arrays
  software_node: unregister software_nodes in reverse order
  include: fwnode.h: Define format macros for ports and endpoints

acpi
  acpi: Add acpi_dev_get_next_match_dev() and helper macro

media
  media: v4l2-core: v4l2-async: Check sd->fwnode->secondary in
    match_fwnode()
  ipu3-cio2: Add T: entry to MAINTAINERS
  ipu3-cio2: Rename ipu3-cio2.c
  ipu3-cio2: Add cio2-bridge to ipu3-cio2 driver
  include: media: v4l2-fwnode: Include v4l2_fwnode_bus_type

Series-level changelog:
	- Rebased onto 5.11-rc1

Thanks
Dan

Andy Shevchenko (1):
  media: ipu3-cio2: Add headers that ipu3-cio2.h is direct user of

Daniel Scally (13):
  software_node: Fix refcounts in software_node_get_next_child()
  device property: Return true in fwnode_device_is_available for NULL
    ops
  device property: Call fwnode_graph_get_endpoint_by_id() for
    fwnode->secondary
  software_node: Enforce parent before child ordering of nodes arrays
  software_node: unregister software_nodes in reverse order
  device property: Define format macros for ports and endpoints
  lib/test_printf.c: Use helper function to unwind array of
    software_nodes
  ipu3-cio2: Add T: entry to MAINTAINERS
  ipu3-cio2: Rename ipu3-cio2.c
  media: v4l2-core: v4l2-async: Check sd->fwnode->secondary in
    match_fwnode()
  ACPI / bus: Add acpi_dev_get_next_match_dev() and helper macro
  media: v4l2-fwnode: Include v4l2_fwnode_bus_type
  ipu3-cio2: Add cio2-bridge to ipu3-cio2 driver

Heikki Krogerus (1):
  software_node: Add support for fwnode_graph*() family of functions

 MAINTAINERS                                   |   2 +
 drivers/acpi/utils.c                          |  30 +-
 drivers/base/property.c                       |  15 +-
 drivers/base/swnode.c                         | 180 ++++++++--
 drivers/media/pci/intel/ipu3/Kconfig          |  18 +
 drivers/media/pci/intel/ipu3/Makefile         |   3 +
 drivers/media/pci/intel/ipu3/cio2-bridge.c    | 311 ++++++++++++++++++
 drivers/media/pci/intel/ipu3/cio2-bridge.h    | 125 +++++++
 .../ipu3/{ipu3-cio2.c => ipu3-cio2-main.c}    |  34 ++
 drivers/media/pci/intel/ipu3/ipu3-cio2.h      |  24 ++
 drivers/media/v4l2-core/v4l2-async.c          |   8 +
 drivers/media/v4l2-core/v4l2-fwnode.c         |  11 -
 include/acpi/acpi_bus.h                       |   7 +
 include/linux/fwnode.h                        |   7 +
 include/media/v4l2-fwnode.h                   |  22 ++
 lib/test_printf.c                             |   4 +-
 16 files changed, 763 insertions(+), 38 deletions(-)
 create mode 100644 drivers/media/pci/intel/ipu3/cio2-bridge.c
 create mode 100644 drivers/media/pci/intel/ipu3/cio2-bridge.h
 rename drivers/media/pci/intel/ipu3/{ipu3-cio2.c => ipu3-cio2-main.c} (98%)

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2.25.1