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

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Hi Bingbu,

On 6/28/23 03:19, Cao, Bingbu wrote:
> Hans,
> 
> Thanks for your patch.
> 
> ------------------------------------------------------------------------
> BRs,  
> Bingbu Cao 
> 
>> -----Original Message-----
>> From: Hans de Goede <hdegoede@xxxxxxxxxx>
>> Sent: Wednesday, June 28, 2023 01:57
>> To: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>; Laurent Pinchart
>> <laurent.pinchart@xxxxxxxxxxxxxxxx>; Daniel Scally
>> <dan.scally@xxxxxxxxxxxxxxxx>
>> Cc: Hans de Goede <hdegoede@xxxxxxxxxx>; Mauro Carvalho Chehab
>> <mchehab@xxxxxxxxxx>; Andy Shevchenko <andy@xxxxxxxxxx>; Kate Hsuan
>> <hpa@xxxxxxxxxx>; Yao, Hao <hao.yao@xxxxxxxxx>; Cao, Bingbu
>> <bingbu.cao@xxxxxxxxx>; linux-media@xxxxxxxxxxxxxxx
>> Subject: [PATCH 00/12] media: intel-cio2-bridge: Add shared intel-cio2-
>> bridge code, rework VCM instantiation
>>
>> 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
> 
> Another cio2-bridge patch - https://patchwork.kernel.org/project/linux-media/patch/20230517103004.724264-1-bingbu.cao@xxxxxxxxx/
> I remember Sakari include it in the latest pull request. 

Ah, yes looks like I need to rebase this on top of that patch,
as Dan also mentioned in another reply.

But I don't see this patch in media-staging yet:
https://git.linuxtv.org/media_stage.git/log/

Is there a branch for the pull-request on which I can rebase this
available somewhere ?

Regards,

Hans




> 
>> 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
> 




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