TX2 CSI2 CPHY vs DPHY

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Experts,

from parker TRM, I understand the NVCSI supports both CPHY & DPHY. I have a requirement to interface the camera thet supports only DPHY option.

Please can you seugget where I need to look into to switch between CPhy & DPhy?

Thanks

2

Hi NVDIA exeprts,

With experiments, I understood default is D-PHY.
Still I am unsure how to switch to C-Phy.

Thanks

3

hello ravikiran.hv,

here’s configuration in the kernel driver to set the NvCSI phy modes.
please refer to below,

sources/kernel/kernel-4.4/drivers/media/platform/tegra/camera/csi/csi4_registers.h
 
#define CFG_PHY_MODE
4

Next release should have c-phy implement sample code. Should be defined in the DT.