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media: imx.rst: Provide instructions for the i.MX6DL sabreauto

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The i.MX6DL sabreauto has different numbering on the I2C bus and
I2C muxes compared to the i.MX6Q as shown in the kernel log below:

[    5.159423] imx-media: ipu1_csi0_mux:5 -> ipu1_csi0:0
[    5.164618] imx-media: ipu1_csi1_mux:5 -> ipu1_csi1:0
[    5.169953] imx-media: adv7180 4-0021:0 -> ipu1_csi0_mux:4

To avoid confusion, add an entry that shows how to setup the links and
configure the pads that are specific to the i.MX6DL sabreauto.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Fabio Estevam 2019-10-15 13:00:41 -03:00 committed by Mauro Carvalho Chehab
parent f3398f328a
commit bdb5b5911c
1 changed files with 58 additions and 0 deletions
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58
Documentation/media/v4l-drivers/imx.rst
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@ -572,6 +572,64 @@ supported YUV or RGB pixelformat on the capture device node.
This platform accepts Composite Video analog inputs to the ADV7180 on
Ain1 (connector J42).
i.MX6DL SabreAuto with ADV7180 decoder
--------------------------------------
On the i.MX6DL SabreAuto, an on-board ADV7180 SD decoder is connected to the
parallel bus input on the internal video mux to IPU1 CSI0.
The following example configures a pipeline to capture from the ADV7180
video decoder, assuming NTSC 720x480 input signals, using simple
interweave (unconverted and without motion compensation). The adv7180
must output sequential or alternating fields (field type 'seq-bt' for
NTSC, or 'alternate'):
.. code-block:: none
# Setup links
media-ctl -l "'adv7180 4-0021':0 -> 'ipu1_csi0_mux':4[1]"
media-ctl -l "'ipu1_csi0_mux':5 -> 'ipu1_csi0':0[1]"
media-ctl -l "'ipu1_csi0':2 -> 'ipu1_csi0 capture':0[1]"
# Configure pads
media-ctl -V "'adv7180 4-0021':0 [fmt:UYVY2X8/720x480 field:seq-bt]"
media-ctl -V "'ipu1_csi0_mux':5 [fmt:UYVY2X8/720x480]"
media-ctl -V "'ipu1_csi0':2 [fmt:AYUV32/720x480]"
# Configure "ipu1_csi0 capture" interface (assumed at /dev/video0)
v4l2-ctl -d0 --set-fmt-video=field=interlaced_bt
Streaming can then begin on /dev/video0. The v4l2-ctl tool can also be
used to select any supported YUV pixelformat on /dev/video0.
This example configures a pipeline to capture from the ADV7180
video decoder, assuming PAL 720x576 input signals, with Motion
Compensated de-interlacing. The adv7180 must output sequential or
alternating fields (field type 'seq-tb' for PAL, or 'alternate').
.. code-block:: none
# Setup links
media-ctl -l "'adv7180 4-0021':0 -> 'ipu1_csi0_mux':4[1]"
media-ctl -l "'ipu1_csi0_mux':5 -> 'ipu1_csi0':0[1]"
media-ctl -l "'ipu1_csi0':1 -> 'ipu1_vdic':0[1]"
media-ctl -l "'ipu1_vdic':2 -> 'ipu1_ic_prp':0[1]"
media-ctl -l "'ipu1_ic_prp':2 -> 'ipu1_ic_prpvf':0[1]"
media-ctl -l "'ipu1_ic_prpvf':1 -> 'ipu1_ic_prpvf capture':0[1]"
# Configure pads
media-ctl -V "'adv7180 4-0021':0 [fmt:UYVY2X8/720x576 field:seq-tb]"
media-ctl -V "'ipu1_csi0_mux':5 [fmt:UYVY2X8/720x576]"
media-ctl -V "'ipu1_csi0':1 [fmt:AYUV32/720x576]"
media-ctl -V "'ipu1_vdic':2 [fmt:AYUV32/720x576 field:none]"
media-ctl -V "'ipu1_ic_prp':2 [fmt:AYUV32/720x576 field:none]"
media-ctl -V "'ipu1_ic_prpvf':1 [fmt:AYUV32/720x576 field:none]"
# Configure "ipu1_ic_prpvf capture" interface (assumed at /dev/video2)
v4l2-ctl -d2 --set-fmt-video=field=none
Streaming can then begin on /dev/video2. The v4l2-ctl tool can also be
used to select any supported YUV pixelformat on /dev/video2.
This platform accepts Composite Video analog inputs to the ADV7180 on
Ain1 (connector J42).
SabreSD with MIPI CSI-2 OV5640
------------------------------