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Date:   Sat, 9 Jan 2021 04:08:04 +0200
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Daniel Scally <djrscally@...il.com>, linux-kernel@...r.kernel.org,
        linux-acpi@...r.kernel.org, linux-media@...r.kernel.org,
        devel@...ica.org, rjw@...ysocki.net, lenb@...nel.org,
        mchehab@...nel.org, sergey.senozhatsky@...il.com,
        yong.zhi@...el.com, sakari.ailus@...ux.intel.com,
        bingbu.cao@...el.com, tian.shu.qiu@...el.com,
        robert.moore@...el.com, erik.kaneda@...el.com, pmladek@...e.com,
        rostedt@...dmis.org, andriy.shevchenko@...ux.intel.com,
        linux@...musvillemoes.dk,
        laurent.pinchart+renesas@...asonboard.com,
        jacopo+renesas@...ndi.org, kieran.bingham+renesas@...asonboard.com,
        hverkuil-cisco@...all.nl, m.felsch@...gutronix.de,
        niklas.soderlund+renesas@...natech.se,
        prabhakar.mahadev-lad.rj@...renesas.com, slongerbeam@...il.com,
        heikki.krogerus@...ux.intel.com
Subject: Re: [PATCH v5 00/15] Add functionality to ipu3-cio2 driver allowing
 software_node connections to sensors on platforms designed for Windows

Hi Greg,

On Thu, Jan 07, 2021 at 01:28:23PM +0000, Daniel Scally wrote:
> 
> Hello all
> 
> v4:
> https://lore.kernel.org/linux-media/20210103231235.792999-1-djrscally@gmail.com/T/#m11b7cb977e1b73fba1e625c3d6a189e2943a7783
> v3:
> https://lore.kernel.org/linux-media/20201224010907.263125-1-djrscally@gmail.com/T/#m37b831bb2b406917d6db5da9acf9ed35df65d72d
> v2:
> https://lore.kernel.org/linux-media/20201217234337.1983732-1-djrscally@gmail.com/T/#md93fd090009b42a6a98aed892aff0d38cf07e0cd
> v1:
> https://lore.kernel.org/linux-media/20201130133129.1024662-1-djrscally@gmail.com/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

Could you please let us know with an Acked-by if these patches can be
merged through the linux-media tree for v5.12 ? This is a cross-tree
series and we would like to avoid topic branches if possible.

>   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%)

-- 
Regards,

Laurent Pinchart

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