PCIe RX channels configure as short channel

Hello team,

I am really apricated with your support on my previous threads. I have one query in PCIe interface. I am using the Jetson XAVIER NX based custom device. We had connected the PCIe switch with x4 lane connector (pcie@141a0000). I need to do some changes in driver and/or device tree for setting RX channel as a short channel.

Please help me to set the RX channel configurations as a short channel, and suggest us where we need to do change in source code.

Thanks and regards