wanpp / Lontium_lt6911uxc

Driver for HDMI to CSI converter lt6911uxc

Lontium_lt6911uxc

This repository contains a driver for the lt6911uxc HDMI2.0 to MIPI CSI converter from Lontium. The driver was tested on a Nvidia Xavier AGX (Jetpack 4.4).

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The group High Performance Multimedia from the Institute of Embedded Systems associated with ZHAW School of Engineering proudly presents an open source driver for lonitum device LT6911UXC.

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Table of contents

Insert Driver into L4T Sources: Instructions on how to add this driver to your Jetson Linux Driver Package (L4T).

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Insert Driver into your L4T Sources

The driver can be used with the Linux Driver Packages (L4T) for NVIDIA Jetson Modules. We have tested the driver with the NVIDIA Jetson AGX Xavier. In order to adapt the driver to your hardware setup use the detailed description regarding device tree parameters in the file lt6911uxc.txt.

For geneneral information and instructions regarding the NVIDIA L4T release or how to manually build the linux kernel for your Jetson device consult: L4T release package , NVIDIA Kernel Customization.

Insert Driver into Kernel Sources

1. Locate the subdirectory of multimedia drivers for encoder, decoder and other helper chips as part of the NVIDIA overlay in ({L4T-RELEASE}/kernel/nvidia/drivers/media/i2c/).

2. Add the driver source to the other present drivers

3. Makefile: Open the file nvidia/drivers/media/i2c/Makefile and add the following line:

   obj-$(CONFIG_VIDEO_LT6911UXC) += lt6911uxc.o
   

4. KConfig: Open the file nvidia/drivers/media/i2c/Kconfig and add the following entry:

   config VIDEO_LT6911UXC
       tristate "Lontium LT6911UXC decoder"
       depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
       help
         Support for the Lontium LT6911UXC HDMI to MIPI CSI-2 bridge.
   
         To compile this driver as a module, choose M here: the
         module will be called lt6911uxc.
   

After those steps, the driver module can be enabled in the menuconfig and the custom kernel including this driver compiled.