Hello all Previous version: https://lore.kernel.org/linux-media/20201130133129.1024662-1-djrscally@xxxxxxxxx/T/#m91934e12e3d033da2e768e952ea3b4a125ee3e67 The RFC version before that: https://lore.kernel.org/linux-media/20201019225903.14276-1-djrscally@xxxxxxxxx/ This series is to start adding support for webcams on laptops with ACPI tables designed for use with CIO2 on Windows. This problem has two main parts; the first part, which is handled in this series, is extending the ipu3-cio2 driver to allow for patching the firmware via software_nodes if endpoints aren't defined by ACPI. The second is adding a new driver to handle power, clocks and GPIO pins defined in DSDT tables in an awkward way. I decided to split that second part out from this series, and instead give it its own series (a v2 of which should land "soon"). The reasons for that are: 1. It's a logically separate change anyway 2. The recipients list was getting really long and 3. That probably meant that handling merge for all of this in one go was going to be impractically awkward. Given how few comments the remaining patches of this series received in the last posting, I'm hopeful that most or all of it could get picked up for 5.12. We touch a few different areas: lib (with an ack already) lib/test_printf.c: Use helper function to unwind array of software_nodes drivers/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 drivers/acpi acpi: Add acpi_dev_get_next_match_dev() and helper macro drivers/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 Given that, it feels sensible to me to try and merge them all through a single tree; I was hoping the other maintainers would be amenable to having everything merged through the media tree. Mauro; if that plan is ok (and of course assuming that the rest of the patches are acked by their respective maintainers too), could we get a dedicated feature branch just in case the following series ends up being ready in time too? Series-level changelog: - Squashed the patches enforcing ordering in register/unregister_nodes() More details of changes on each patch. Comments as always very welcome - and thanks to everyone for all your help on this so far, hope I've addressed everything from last time. Dan Daniel Scally (11): 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 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: Add acpi_dev_get_next_match_dev() and helper macro 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 | 173 +++++++++-- drivers/media/pci/intel/ipu3/Kconfig | 18 ++ drivers/media/pci/intel/ipu3/Makefile | 3 + drivers/media/pci/intel/ipu3/cio2-bridge.c | 274 ++++++++++++++++++ drivers/media/pci/intel/ipu3/cio2-bridge.h | 122 ++++++++ .../ipu3/{ipu3-cio2.c => ipu3-cio2-main.c} | 34 +++ drivers/media/pci/intel/ipu3/ipu3-cio2.h | 6 + drivers/media/v4l2-core/v4l2-async.c | 8 + include/acpi/acpi_bus.h | 7 + lib/test_printf.c | 4 +- 13 files changed, 669 insertions(+), 27 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%) -- 2.25.1
