Re: [RFC PATCH v2 00/18] Support for Tegra video capture from external sensor

From: Hans Verkuil
Date: Tue Jun 30 2020 - 11:13:42 EST

On 30/06/2020 16:58, Sowjanya Komatineni wrote:
>
> On 6/30/20 2:21 AM, Hans Verkuil wrote:
>> On 17/06/2020 03:41, Sowjanya Komatineni wrote:
>>> This series adds support for video capture from external camera sensor to
>>> Tegra video driver.
>>>
>>> Jetson TX1 has camera expansion connector and supports custom camera module
>>> designed as per TX1 design specification.
>>>
>>> This series also enables camera capture support for Jetson Nano which has
>>> Raspberry PI camera header.
>>>
>>> This series is tested with IMX219 camera sensor.
>> Which tree did you base this on? The media_tree master? Or the mainline kernel?
> These patches are with linux-next base at the time I sent them out which
> are on 20200616
>>
>> I now have the imx219 detected, but if I try to stream I get this:
>>
>> $ v4l2-ctl --stream-mmap
>> <[ 512.840944] video4linux video0: MW_ACK_DONE syncpt timeout: -11
>> [ 512.972975] video4linux video0: frame start syncpt timeout: -11
>> <VIDIOC_DQBUF: failed: Input/output error
>> [ 513.180770] video4linux video0: MW_ACK_DONE syncpt timeout: -11
>>
>> And then everything hangs and I need to reset.
>>
>> I'm testing with the media_tree master with your patches on top.
>>
>> Regards,
>>
>> Hans
>
> Are you using same device tree as I sent offline? It uses CSI A for IMX219.
>
> Does you setup also uses CSI-A as x2 for IMX219?
>
> I tested them on Jetson Nano + IMX219 rasp PI module and also on Jetson
> TX1 + IMX274.
>
> I did not see any issue and am able to capture from both.
>
> Will try again on my side with today's latest linux-next and update result.

Please use the media_tree master, that's what I use as well.

I did some more testing and there is something weird going on.

I have a Leopard Imaging camera expansion board (LI-JTX1-MIPI-ADPT) with
three camera connectors. See here for the datasheet:

https://www.leopardimaging.com/uploads/LI-TX1-KIT-IMX274M12-T_datasheet.pdf

The first connector (with an IMX274) causes this error:

$ v4l2-ctl -d1 --stream-mmap
[ 599.265885] video4linux video1: MW_ACK_DONE syncpt timeout: -11
[ 599.473883] video4linux video1: MW_ACK_DONE syncpt timeout: -11
[ 599.681904] video4linux video1: frame start syncpt timeout: -11
[ 599.681909] video4linux video1: MW_ACK_DONE syncpt timeout: -11
<VIDIOC_DQBUF: failed: Input/output error
[ 599.897884] video4linux video1: MW_ACK_DONE syncpt timeout: -11

Similar to the test above where I had an IMX219 connected. Except it didn't
hang with the IMX274 (I'm beginning to suspect a locking issue in the imx219
driver that is causing the hang, I'll look at that tomorrow).

If I connect the IMX219 to the middle camera connector, then it works fine.
I think I tested this with the IMX274 as well, but I'm not 100% certain, also
something to double check tomorrow.

If I connect the IMX219 or IMX274 to the third camera connector, then I get this:

$ v4l2-ctl -d0 --stream-mmap
[ 820.513866] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)

[ 820.525354] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)

[ 820.536780] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)

[ 820.548222] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)

[ 820.559639] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
<[ 820.646931] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
[ 820.658355] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
[ 820.669797] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
[ 820.681216] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
[ 820.692601] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
<<<<<<<<<<<<<<< 14.50 fps
<<<<<<<<<<<<<<< 14.75 fps
<<<<<<<<<<<<<<< 14.73 fps
<<<<<<<<<<<<<<< 14.80 fps
<<<<<<<<<<<<<[ 825.517854] tegra_mc_irq: 133437 callbacks suppressed
[ 825.517874] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
[ 825.534395] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
[ 825.545833] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
[ 825.557280] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
[ 825.579346] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
[ 825.590764] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
[ 825.602188] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
[ 825.613649] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
[ 825.625075] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
[ 825.645983] tegra-mc 70019000.memory-controller: viw: write @0x00000001b5fd08c0: EMEM address decode error (EMEM decode error)
< 14.64 fps
<<<<<<<<<<<<<<<< 14.87 fps
<<<<<<<<<<<<<<< 14.89 fps

Something is producing EMEM address decode errors. But it is streaming.

If I enable the TPG then everything is fine.

So I have currently three different behaviors for three camera connectors.

Do you have a datasheet for your Jetson TX1 camera board? It could be useful
to compare the two.

Regards,

Hans

>
>>
>>> This series include,
>>>
>>> VI I2C related fixes
>>> - Camera sensor programming happens through VI I2C which is on host1x bus.
>>> - These patches includes device tree and I2C driver fixes for VI I2C.
>>>
>>> Tegra video driver updates
>>> - TPG Vs Non-TPG based on Kconfig
>>> - Support for external sensor video capture based on device graph from DT.
>>> - Support for selection ioctl operations
>>> - Tegra MIPI CSI pads calibration
>>> - CSI T-CLK and T-HS settle time computation based on clock rates.
>>>
>>> Host1x driver updates
>>> - Adds API to allow creating mipi device for specific device node.
>>> - Splits MIPI pads calibrate start and waiting for calibration to be done.
>>>
>>> Device tree updates
>>> - Adds camera connector 2V8, 1V8, 1V2 regulator supplies to Jetson TX1 DT.
>>> - Enabled VI and CSI support in Jetson Nano DT.
>>>
>>>
>>> Delta between patch versions:
>>>
>>> [v2]: Includes below changes based on v1 feedback
>>> - dt-binding document and the driver update for device graph to use
>>> separate ports for sink endpoint and source endpoint for csi.
>>> - Use data-lanes endpoint property for csi.
>>> - Update tegra_mipi_request() to take device node pointer argument
>>> rather than adding extra API.
>>> - Remove checking for clk pointer before clk_disable.
>>>
>>>
>>> Sowjanya Komatineni (18):
>>> dt-bindings: i2c: tegra: Document Tegra210 VI I2C clocks and
>>> power-domains
>>> arm64: tegra: Add missing clocks and power-domains to Tegra210 VI I2C
>>> i2c: tegra: Don't mark VI I2C as IRQ safe runtime PM
>>> i2c: tegra: Fix the error path in tegra_i2c_runtime_resume
>>> i2c: tegra: Fix runtime resume to re-init VI I2C
>>> i2c: tegra: Avoid tegra_i2c_init_dma() for Tegra210 vi i2c
>>> media: tegra-video: Fix channel format alignment
>>> media: tegra-video: Enable TPG based on kernel config
>>> media: tegra-video: Update format lookup to offset based
>>> dt-bindings: tegra: Update VI and CSI bindings with port info
>>> media: tegra-video: Add support for external sensor capture
>>> media: tegra-video: Add support for selection ioctl ops
>>> gpu: host1x: mipi: Update tegra_mipi_request() to be node based
>>> gpu: host1x: mipi: Split tegra_mipi_calibrate and tegra_mipi_wait
>>> media: tegra-video: Add CSI MIPI pads calibration
>>> media: tegra-video: Compute settle times based on the clock rate
>>> arm64: tegra: jetson-tx1: Add camera supplies
>>> arm64: tegra: Enable Tegra VI CSI support for Jetson Nano
>>>
>>> .../display/tegra/nvidia,tegra20-host1x.txt | 92 ++-
>>> .../devicetree/bindings/i2c/nvidia,tegra20-i2c.txt | 19 +-
>>> arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi | 41 ++
>>> arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts | 10 +
>>> arch/arm64/boot/dts/nvidia/tegra210.dtsi | 6 +
>>> drivers/gpu/drm/tegra/dsi.c | 9 +-
>>> drivers/gpu/host1x/mipi.c | 30 +-
>>> drivers/i2c/busses/i2c-tegra.c | 39 +-
>>> drivers/staging/media/tegra-video/Kconfig | 7 +
>>> drivers/staging/media/tegra-video/csi.c | 245 ++++++-
>>> drivers/staging/media/tegra-video/csi.h | 8 +
>>> drivers/staging/media/tegra-video/tegra210.c | 25 +-
>>> drivers/staging/media/tegra-video/vi.c | 770 +++++++++++++++++++--
>>> drivers/staging/media/tegra-video/vi.h | 23 +-
>>> drivers/staging/media/tegra-video/video.c | 23 +-
>>> include/linux/host1x.h | 4 +-
>>> 16 files changed, 1251 insertions(+), 100 deletions(-)
>>>