tegra194-p3509-0000-camera-onsemi-sensor-driver-a00.dtsi (1.7 KB)tegra194-p3509-camera-onsemi-sensor-driver.dtsi (3.6 KB)
I have my own custom board, I am able to bring up camera (streaming as expected) via our heardboard. I am able to add two entry and both are streaming as per my requirement with /dev/video0 and /dev/video1
Now I want to bringup SERDES, I have mounted MAX9296 Deserializer as this driver is supported by NX kernel (I am refering IMX390). My serdes is setting on I2C bus-1 and I can see i2c detecting 0x6C (MAX9296 ), 0x62 (MAX9295 ) and 0x10 AR0233 on same I2C bus-1.
Could you help me to understand what configuration I am missing for all video node creation and configuring proper mipi lane for serdes? I have attached my dtsi for your reference.
Below is the schematic which connect Jetson NX to our headboard and DSER.
Kernel Log:ptrval
tegra194-camera-onsemi-sensor-driver-a00.dtsi (9.5 KB)
Looks like HW problem to detect max929x
Hi,
After comminting one GPIO I am able to detect max9296 as well 9295.
Can you help me to understand below log " invalid GPIO -2 ":#18
[ 7.101911] x23: ffffbbbef21e4940 x22: ffff043c44cc2820
[ 7.167622] x9 : ffff800010b9ba60 x8 : ffff800010b9ba60#18 [ 7.541900] invalid GPIO -2 [ 7.544694] WARNING: CPU: 2 PID: 106 at drivers/gpio/gpiolib.c:122 gpio_to_desc+0xb4/0x100 [ 7.553145] Modules linked in: [ 7.555960] CPU: 2 PID: 106 Comm: kworker/2:3 Tainted: G W 5.10.104-tegra #18
MAX 9296/9295 will work for all sensor or do we have to do any specific changes for ONSEMI sensors ?
Looks like some GPIO control code in max9296_power_on{} cause the problem.
Now I am able to configure des/ser properly and video node is also getting created. but not able to detect sensor.
Below is my kernel log:
[ 7.194927] tegradc 15200000.display: Display dc.000000004143f7f2 registered with id=0[ 7.610787] onsemi_serdes_driver 1-0010: chip version register read failed [ 7.611005] onsemi_serdes_driver 1-0010: chip version 0 detected!!
Here is my lattest DTSI:tegra194-p3509-0000-camera-onsemi-sensor-driver-a00.dtsi (1.9 KB)tegra194-p3509-camera-onsemi-sensor-driver.dtsi (2.9 KB)tegra194-camera-onsemi-sensor-driver-a00.dtsi (9.5 KB)
Does below failed cause it?
This I am trying to ready post registry is done successfully and expecting sensor should get discovered here.
err = tegracam_v4l2subdev_register(tc_dev, true);
if (err) {
dev_err(dev, "tegra camera subdev registration failed\n");
return err;
}
dev_err(dev, "Sujit : %s [%d]\n", __func__, __LINE__);
dev_info(dev, "Detected ONSEMI serdes generic sensor driver\n");
err = onsemi_serdes_read_reg(priv->s_data, 0x3000, &chip_version);
if (err) {
dev_err(dev, "chip version register read failed\n");
}
dev_err(dev, "chip version %x detected!!\n", chip_version);
The port-index of onsemi_sensor_driver_b duplicate with first one.
ShaneCCC:
onsemi_sensor_driver_b
That is for different use case; I am configuring :
onsemi_sensor_driver_a for CSI mipi 4 lane
Upto here no issue I can see streaming is happning
When I configure onsemi_sensor_driver_c for SERDES then I dont able to do sensor read/write via I2C.
Hi,
After reseting max9295 I am able to detect sensor and read/write is working as expected.
I need one clarification regarding confiring CSI, below is how we are connecting CSI. Could you let me know what changes I have to do in DTSI to configure CSI4_D0 to CSI4_D4 for 4 Lane MIPI .
Thanks,
The port-index is 4 for CSI4
ShaneCCC:
CSI4
I have added port-index 4 in dtsi for CSI4. Attached my DTSI for your quick reference. Could you help me to figureout if any issue in DTSI
tegra194-camera-onsemi-sensor-driver-a00.dtsi (9.5 KB)
I have probed signals and I can see sensor to serilizer data is coming but not getting data at deserilizer end. So suspecting some DTSI configuration I have done wrongly. Could you please suggest any help
I would suggest consult to consult with MAX to check the driver configure.
Can you please confirm the max9296 kernel driver is for max9296a or max9296b ?
I don’t know you need to know it from vendor.
Thanks
Hi ShaneCCC,
Thank you for your help.
Could you let me know what is this error:
system
July 12, 2023, 3:51am
21
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