CSI is not working
The CSI0/CSI1 camera device driver can be mounted normally. However, the AM67's kernel-related driver for the camera is not able to be mounted properly. Specifically, for the j721e-csi2rx, the error log indicates:
[8.644166] j721e-csi2rx: probe of 30102000.ticsi2rx failed with error -22
Further tracking of the code reveals that it is related to the dma driver, and the specific log is:
[ 1.375488] ti-udma 4e230000.dma-controller: Number of rings: 40
[ 1.382824] ti-udma 4e230000.dma-controller: Channels: 24 (bchan: 0, tchan: 8, rchan: 16)
[ 8.615971] ti-udma 4e230000.dma-controller: chan0: ring irq request failed
[ 8.629768] ti-udma 4e230000.dma-controller: get channel fail in udma_of_xlate.
Notes
- The AM67 kernel is not compatible with camera driver.
- Using the same camera as BeaglePlay and BBAI-64.