[PATCH 00/12] media: intel-cio2-bridge: Add shared intel-cio2-bridge code, rework VCM instantiation

[Hans de Goede <hdegoede@redhat.com>]

Hi All,

While working on adding (proper) VCM support to the atomisp code
I found myself copying yet more code from
drivers/media/pci/intel/ipu3/cio2-bridge.c into the atomisp code.

So I decided that it really was time to factor out the common code
(most of the code) from intel/ipu3/cio2-bridge.c into its own
helper library and then share it between the atomisp and IPU3 code.

This will hopefully also be useful for the ongoing work to upstream
IPU6 input system support which also needs this functionality and
currently contains a 3th copy of this code in the out of tree driver.

This set consists of the following parts:

Patch 1     A bugfix for a recent change to the cio2-bridge code
Patches 2-8 Cleanup / preparation patches
Patch 9     Move the main body of the cio2-bridge.c code into
            a new shared intel-cio2-bridge module
Patch 10    Drop cio2-bridge code copy from atomisp, switching to
            the shared intel-cio2-bridge module
Patch 11    Rework how VCM client instantiation is done so that
            a device-link can be added from VCM to sensor to
            fix issues with the VCM power-state being tied to
            the sensor power state
Patch 12    Example patch to show how patch 11 avoids the need
            for hacks in VCM drivers caused by the shared power state
            (not intended for merging)

Regards,

Hans


Hans de Goede (12):
  media: ipu3-cio2: Do not use on stack memory for software_node.name
    field
  media: ipu3-cio2: Move initialization of node_names.vcm to
    cio2_bridge_init_swnode_names()
  media: ipu3-cio2: Make cio2_bridge_init() take a regular struct device
    as argument
  media: ipu3-cio2: Store dev pointer in struct cio2_bridge
  media: ipu3-cio2: Only keep PLD around while parsing
  media: ipu3-cio2: Add a cio2_bridge_parse_sensor_fwnode() helper
    function
  media: ipu3-cio2: Add a parse_sensor_fwnode callback to
    cio2_bridge_init()
  media: ipu3-cio2: Add supported_sensors parameter to
    cio2_bridge_init()
  media: ipu3-cio2: Move cio2_bridge_init() code into a new shared
    intel-cio2-bridge.ko
  media: atomisp: csi2-bridge: Switch to new common cio2_bridge_init()
  media: intel-cio2-bridge: Add a runtime-pm device-link between VCM and
    sensor
  [RFC] media: dw9719: Drop hack to enable "vsio" regulator

 MAINTAINERS                                   |   9 +
 drivers/media/common/Kconfig                  |   4 +
 drivers/media/common/Makefile                 |   1 +
 drivers/media/common/intel-cio2-bridge.c      | 464 ++++++++++++++++++
 drivers/media/i2c/dw9719.c                    |  27 +-
 drivers/media/pci/intel/ipu3/Kconfig          |   1 +
 drivers/media/pci/intel/ipu3/cio2-bridge.c    | 464 +++---------------
 drivers/media/pci/intel/ipu3/cio2-bridge.h    | 146 ------
 drivers/media/pci/intel/ipu3/ipu3-cio2-main.c |   7 +-
 drivers/media/pci/intel/ipu3/ipu3-cio2.h      |   7 +-
 drivers/staging/media/atomisp/Kconfig         |   2 +
 .../staging/media/atomisp/pci/atomisp_csi2.h  |  67 ---
 .../media/atomisp/pci/atomisp_csi2_bridge.c   | 307 ++----------
 include/media/intel-cio2-bridge.h             | 105 ++++
 14 files changed, 723 insertions(+), 888 deletions(-)
 create mode 100644 drivers/media/common/intel-cio2-bridge.c
 delete mode 100644 drivers/media/pci/intel/ipu3/cio2-bridge.h
 create mode 100644 include/media/intel-cio2-bridge.h

-- 
2.41.0