hakan1498 / cutiepi-drivers Goto Github PK

This repository hosts modified drivers and device tree sources needed for the CutiePi board, the open source Raspberry Pi Compute Module 4 carrier board.

Current release is tested on Raspberry Pi OS (2021-08-31) with kernel 5.10 and 5.11.

CutiePi tablet uses an 8-inch (800x1280) MIPI DIS TFT LCD display, it has ILI9881C as its LCD driver.

The panel-nwe080 driver is now a dkms package, and can be installed to the system using following commands:

# on the Pi system 
sudo apt install dkms raspberrypi-kernel-headers 
sudo tar xvf Display/panel-nwe080-1.0.tgz -C /usr/src/

sudo dkms add -m panel-nwe080 -v 1.0
sudo dkms build -m panel-nwe080 -v 1.0
sudo dkms install -m panel-nwe080 -v 1.0

A device tree overlay is also needed, which can be compiled from Display/panel-nwe080.dts with following command:

dtc -I dts -O dtb -o panel-nwe080.dtbo panel-nwe080.dts

Copy the file to /boot/overlays, then add following configure in config.txt:

# MIPI DSI display 
dtoverlay=panel-nwe080
gpio=12=op,dh

To enable Goodix GT9xx multitouch controller, compile the device tree overlay under Touch:

dtc -I dts -O dtb -o cutiepi_touch.dtbo cutiepi_touch.dts

And configure config.txt accordingly:

dtoverlay=i2c6
dtoverlay=cutiepi_touch

# Camera (with dt-blob.bin)
start_x=1
gpu_mem=128
# Uncomment for camera module v2
#dtoverlay=imx219
dtoverlay=ov5647

# Gyroscope 
dtoverlay=i2c5,pins_10_11

dtoverlay=dwc2,dr_mode=host

# MCU reading (ttyS0)
enable_uart=1
dtoverlay=uart1