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

>
>> 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(-)
>>

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