Raspberry Pi CM4 bindings for BOE VS035ZSM-NW0-69P0 1440x1600 LCD display
NOTE: Large parts are copied from the JDI LT070ME05000 LCD
Status: Should work, but due to chip shortage not tested yet.
BOE VS035ZSM NW0 69P0 panel is a 1440x1600 4-lane DSI LCD display. To use it, 4-lane DSI interface is required, so it can be used with Raspberry Pi Compute Modules 3 and 4.
We need build rpi-5.10.y branch with BOE VS035ZSM NW0 69P0 panel module enabled. This is well documented at Raspberry Pi help pages here and here
NOTE: For cross-compiling, see information here
sudo apt install git bc bison flex libssl-dev make
sudo apt install libncurses5-dev
git clone --depth=1 --branch rpi-5.10.y https://github.com/raspberrypi/linux
Copy the files from THIS repository to the kernel and add it to the Make/Kconfig files for it to build.
cp panel-boe-vs035zsm-nw0-69p0.c linux/drivers/gpu/drm/panel/panel-boe-vs035zsm-nw0-69p0.c
cp vc4-kms-dsi-vs035zsm-nw0-69p0-overlay.dts linux/arch/arm/boot/dts/overlays/vc4-kms-dsi-vs035zsm-nw0-69p0-overlay.dts
Add an entry to linux/drivers/gpu/drm/panel/Kconfig
Add an entry to linux/drivers/gpu/drm/panel/Makefile
Add an entry to linux/arch/arm/boot/dts/overlays/README
Add an entry to linux/arch/arm/boot/dts/overlays/Makefile
cd linux
KERNEL=kernel7l
make bcm2711_defconfig
make menuconfig
Navigate to Device Drivers/Graphics support/Display panel, check BOE VS035ZSM NW0 69P0 panel and save
Now we need to build and install kernel:
make -j4 zImage modules dtbs
sudo make modules_install
sudo cp arch/arm/boot/dts/*.dtb /boot/
sudo cp arch/arm/boot/dts/overlays/*.dtb* /boot/overlays/
sudo cp arch/arm/boot/dts/overlays/README /boot/overlays/
sudo cp arch/arm/boot/zImage /boot/$KERNEL.img
Then compile and copy the Device Tree source to boot partition:
sudo dtc -@ -I dts -O dtb -o vc4-kms-dsi-vs035zsm-nw0-69p0.dtbo vc4-kms-dsi-vs035zsm-nw0-69p0-overlay.dts
sudo cp vc4-kms-dsi-vs035zsm-nw0-69p0.dtbo /boot/overlays/
Then edit /boot/config.txt to add:
ignore_lcd=1
dtoverlay=vc4-kms-v3d
dtoverlay=vc4-kms-dsi-vs035zsm-nw0-69p0
and reboot
After reboot screen should we working and have portrait orientation. To adjust, use Main Menu/Preferences/Screen configuration utility