On 10/12/19 1:14 PM, Steve Longerbeam wrote:
Hi Fabio,
On 10/10/19 8:44 AM, Fabio Estevam wrote:
In kernel 5.3.x the I2C bus that the adv7180 is under has changed from
bus 3 to 4 and the ipu_csi0_mux numbers has also changed as shown by
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
Update the instructions accordingly.
I just booted the imx6q SabreAuto with 5.4.0-rc1 (and media-tree HEAD
3ff3a712a9ea), I am getting:
arm:~ % uname -r
5.4.0-rc1-13672-g3ff3a712a9ea
arm:~ % dmesg | grep 'ipu[12]_csi[01]_mux'
[ 13.042519] imx-media: ipu1_csi0_mux:2 -> ipu1_csi0:0
[ 13.042590] imx-media: ipu2_csi1_mux:2 -> ipu2_csi1:0
[ 13.042656] imx-media: adv7180 3-0021:0 -> ipu1_csi0_mux:1
arm:~ % dmesg | grep adv7180
[ 12.905157] adv7180 3-0021: chip found @ 0x21 (i2c-2-mux (chan_id 1))
[ 13.042656] imx-media: adv7180 3-0021:0 -> ipu1_csi0_mux:1
So the adv7180 i2c-bus and pad numbers have not changed. The adv7180
is still on bus 3, and the output pad from the IPU-CSI video muxes are
still pad 2. The video muxes have no such pad 5 in fact. I'd be
curious in learning how you came about that pad number.
Ah, now I remember. You are using the imx6dl sabreauto, it's IPU-CSI
video muxes have five input pads for each of the four MIPI CSI-2 virtual
channels (pads 0 - 3) and one parallel input (pad 4). The output mux pad
is pad 5.
But the doc should clarify which SabreAuto corresponds to the given
example pipeline config. Can you send a v2 of this patch that clarifies
the config corresponds to the imx6 quad SabreAuto. If you like you could
also include the analogous config for the imx6dl.
Steve
Also, in the last line pass the fmt field explicitly as done in the
previous lines.
Thanks for catching that, it was left over from a pipeline
configuration script of mine.
Steve
Signed-off-by: Fabio Estevam <festevam@xxxxxxxxx>
---
Documentation/media/v4l-drivers/imx.rst | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/Documentation/media/v4l-drivers/imx.rst
b/Documentation/media/v4l-drivers/imx.rst
index 1d7eb8c7bd5c..75430cd2f222 100644
--- a/Documentation/media/v4l-drivers/imx.rst
+++ b/Documentation/media/v4l-drivers/imx.rst
@@ -530,12 +530,12 @@ NTSC, or 'alternate'):
.. code-block:: none
# Setup links
- media-ctl -l "'adv7180 3-0021':0 -> 'ipu1_csi0_mux':1[1]"
- media-ctl -l "'ipu1_csi0_mux':2 -> 'ipu1_csi0':0[1]"
+ 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 3-0021':0 [fmt:UYVY2X8/720x480 field:seq-bt]"
- media-ctl -V "'ipu1_csi0_mux':2 [fmt:UYVY2X8/720x480]"
+ 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/video4)
v4l2-ctl -d4 --set-fmt-video=field=interlaced_bt
@@ -553,19 +553,19 @@ at its output pad:
.. code-block:: none
# Setup links
- media-ctl -l "'adv7180 3-0021':0 -> 'ipu1_csi0_mux':1[1]"
- media-ctl -l "'ipu1_csi0_mux':2 -> 'ipu1_csi0':0[1]"
+ 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 3-0021':0 [fmt:UYVY2X8/720x576 field:seq-tb]"
- media-ctl -V "'ipu1_csi0_mux':2 [fmt:UYVY2X8/720x576]"
+ 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:$outputfmt field:none]"
+ media-ctl -V "'ipu1_ic_prpvf':1 [fmt:AYUV32/720x576 field:none]"
Streaming can then begin on the capture device node at
"ipu1_ic_prpvf capture". The v4l2-ctl tool can be used to select any
