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Commit 4dfbd3d9 authored by Todor Tomov's avatar Todor Tomov Committed by Mauro Carvalho Chehab
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media: doc: media/v4l-drivers: Qualcomm Camera Subsystem - Media graph 



Update the Qualcomm Camera Subsystem driver document with a media
controller pipeline graph diagram.

Signed-off-by: default avatarTodor Tomov <todor.tomov@linaro.org>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent bbde3104

Documentation/media/v4l-drivers/qcom_camss.rst

+10 −17
Original line number Original line Diff line number Diff line
@@ -114,23 +114,16 @@ The considerations to split the driver in this particular way are as follows: 




Each VFE sub-device is linked to a separate video device node.

Each VFE sub-device is linked to a separate video device node.





The complete list of the media entities (V4L2 sub-devices and video device

The media controller pipeline graph is as follows (with connected two OV5645

nodes) is as follows:

camera sensors):





- msm_csiphy0

.. _qcom_camss_graph:

- msm_csiphy1



- msm_csid0

.. kernel-figure:: qcom_camss_graph.dot

- msm_csid1

    :alt:   qcom_camss_graph.dot

- msm_ispif0

    :align: center

- msm_ispif1



- msm_vfe0_rdi0

    Media pipeline graph

- msm_vfe0_video0

- msm_vfe0_rdi1

- msm_vfe0_video1

- msm_vfe0_rdi2

- msm_vfe0_video2

- msm_vfe0_pix

- msm_vfe0_video3









Implementation

Implementation

Documentation/media/v4l-drivers/qcom_camss_graph.dot

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+41 −0
Original line number Original line Diff line number Diff line 
digraph board {

	rankdir=TB

	n00000001 [label="{{<port0> 0} | msm_csiphy0\n/dev/v4l-subdev0 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]

	n00000001:port1 -> n00000007:port0 [style=dashed]

	n00000001:port1 -> n0000000a:port0 [style=dashed]

	n00000004 [label="{{<port0> 0} | msm_csiphy1\n/dev/v4l-subdev1 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]

	n00000004:port1 -> n00000007:port0 [style=dashed]

	n00000004:port1 -> n0000000a:port0 [style=dashed]

	n00000007 [label="{{<port0> 0} | msm_csid0\n/dev/v4l-subdev2 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]

	n00000007:port1 -> n0000000d:port0 [style=dashed]

	n00000007:port1 -> n00000010:port0 [style=dashed]

	n0000000a [label="{{<port0> 0} | msm_csid1\n/dev/v4l-subdev3 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]

	n0000000a:port1 -> n0000000d:port0 [style=dashed]

	n0000000a:port1 -> n00000010:port0 [style=dashed]

	n0000000d [label="{{<port0> 0} | msm_ispif0\n/dev/v4l-subdev4 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]

	n0000000d:port1 -> n00000013:port0 [style=dashed]

	n0000000d:port1 -> n0000001c:port0 [style=dashed]

	n0000000d:port1 -> n00000025:port0 [style=dashed]

	n0000000d:port1 -> n0000002e:port0 [style=dashed]

	n00000010 [label="{{<port0> 0} | msm_ispif1\n/dev/v4l-subdev5 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]

	n00000010:port1 -> n00000013:port0 [style=dashed]

	n00000010:port1 -> n0000001c:port0 [style=dashed]

	n00000010:port1 -> n00000025:port0 [style=dashed]

	n00000010:port1 -> n0000002e:port0 [style=dashed]

	n00000013 [label="{{<port0> 0} | msm_vfe0_rdi0\n/dev/v4l-subdev6 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]

	n00000013:port1 -> n00000016 [style=bold]

	n00000016 [label="msm_vfe0_video0\n/dev/video0", shape=box, style=filled, fillcolor=yellow]

	n0000001c [label="{{<port0> 0} | msm_vfe0_rdi1\n/dev/v4l-subdev7 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]

	n0000001c:port1 -> n0000001f [style=bold]

	n0000001f [label="msm_vfe0_video1\n/dev/video1", shape=box, style=filled, fillcolor=yellow]

	n00000025 [label="{{<port0> 0} | msm_vfe0_rdi2\n/dev/v4l-subdev8 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]

	n00000025:port1 -> n00000028 [style=bold]

	n00000028 [label="msm_vfe0_video2\n/dev/video2", shape=box, style=filled, fillcolor=yellow]

	n0000002e [label="{{<port0> 0} | msm_vfe0_pix\n/dev/v4l-subdev9 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]

	n0000002e:port1 -> n00000031 [style=bold]

	n00000031 [label="msm_vfe0_video3\n/dev/video3", shape=box, style=filled, fillcolor=yellow]

	n00000057 [label="{{} | ov5645 1-0076\n/dev/v4l-subdev10 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]

	n00000057:port0 -> n00000001:port0 [style=bold]

	n00000059 [label="{{} | ov5645 1-0074\n/dev/v4l-subdev11 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]

	n00000059:port0 -> n00000004:port0 [style=bold]

}