Tegra194-vi5 15c10000.vi: corr_err: discarding frame 0, flags: 0, err_data 0

[varun_pandithurai]

Getting Error in TPG using deserializer DS90UB954
I have made changes in the ov5693 sensor driver changing the i2c address, clock and registers to generate pattern but the i2c write failed so for now I have removed the reg_write part in the driver and using i2cset to write i2c the deserializer is sending mipi data I have confirmed it using an oscilloscope.

I need help n figuring out why i can’t capture and show the pattern generation output.
I have added the Kernel log and the user_space code which i am using, for reference.
user_space_code: GitHub - fastr/yavta: fork of git://git.ideasonboard.org/yavta.git
kernel_log:
kern.log (16.6 KB)
Can anyone help me to fix this issue?

[varun_pandithurai]

Hi,
I executed commands as followed to enable log tracing

echo 1 > /sys/kernel/debug/tracing/tracing_on
echo 30720 > /sys/kernel/debug/tracing/buffer_size_kb
echo 1 > /sys/kernel/debug/tracing/events/tegra_rtcpu/enable
echo 1 > /sys/kernel/debug/tracing/events/freertos/enable
echo 2 > /sys/kernel/debug/camrtc/log-level
echo 1 > /sys/kernel/debug/tracing/events/camera_common/enable
echo > /sys/kernel/debug/tracing/trace
cat /sys/kernel/debug/tracing/trace

Then I executed the user_space code
user_space_code: GitHub - fastr/yavta: fork of git://git.ideasonboard.org/yavta.git

I am attaching the /sys/kernel/debug/tracing/trace file for reference
log (1.6 MB)

[ShaneCCC]

Boost the clocks to try.

sudo su
echo 1 > /sys/kernel/debug/bpmp/debug/clk/vi/mrq_rate_locked
echo 1 > /sys/kernel/debug/bpmp/debug/clk/isp/mrq_rate_locked
echo 1 > /sys/kernel/debug/bpmp/debug/clk/nvcsi/mrq_rate_locked
cat /sys/kernel/debug/bpmp/debug/clk/vi/max_rate |tee /sys/kernel/debug/bpmp/debug/clk/vi/rate
cat /sys/kernel/debug/bpmp/debug/clk/isp/max_rate | tee /sys/kernel/debug/bpmp/debug/clk/isp/rate
cat /sys/kernel/debug/bpmp/debug/clk/nvcsi/max_rate | tee /sys/kernel/debug/bpmp/debug/clk/nvcsi/rate

[varun_pandithurai]

Hi @ShaneCCC ,
I got the following Results:
cat /sys/kernel/debug/bpmp/debug/clk/vi/max_rate |tee /sys/kernel/debug/bpmp/debug/clk/vi/rate
998400000
cat /sys/kernel/debug/bpmp/debug/clk/isp/max_rate | tee /sys/kernel/debug/bpmp/debug/clk/isp/rate
1190400000
cat /sys/kernel/debug/bpmp/debug/clk/nvcsi/max_rate | tee /sys/kernel/debug/bpmp/debug/clk/nvcsi/rate
400000000

[ShaneCCC]

What’s the capture result after those command? Check the trace log if still the same.

[varun_pandithurai]

Hi @ShaneCCC ,
I have attached the trace log for your reference.
Kindly let me know where I am missing.
log (2.3 MB)

[ShaneCCC]

After boost the clock the RX/TX FIFO error was gone.
And now looks like the output package have ecc problem.

err_intr_stat_ph_ecc_multi_bit_err :
packet header multi-bit ECC error

[varun_pandithurai]

Hi @ShaneCCC ,
I am unable to understand the error can u explain me it ?

[ShaneCCC]

The sensor output package lack the ECC package or signal have problem cause the ECC error.