Out of tree LVGL driver

RE: Out of tree LVGL driver

Bjorn01 — Wed, 28 Jan 2026 16:19:35 GMT

Thanks

RE: Out of tree LVGL driver

Toby Jaffey — Tue, 27 Jan 2026 16:58:50 GMT

Here is my basic NV3007 driver and a fragment from the overlay config to set it up.

github.com/.../zephyr-nv3007

RE: Out of tree LVGL driver

Bjorn01 — Mon, 26 Jan 2026 16:18:46 GMT

Hi Toby,
Would you mind sharing the NV3007 driver you made?

BR Bjorn

RE: Out of tree LVGL driver

Øyvind — Tue, 25 Nov 2025 10:29:24 GMT

That's great! 🙂

RE: Out of tree LVGL driver

Toby Jaffey — Tue, 25 Nov 2025 09:17:50 GMT

Yes, lvgl_init() handles picking up the chosen display and works correctly.

RE: Out of tree LVGL driver

Øyvind — Tue, 25 Nov 2025 08:43:29 GMT

Hello, I'm glad you were able to solve the issue. Are you able to run the display as intended with LVGL?

RE: Out of tree LVGL driver

Toby Jaffey — Mon, 24 Nov 2025 14:40:09 GMT

Thank you for the advice. It turned out that I was taking the wrong approach.
Rather than build lvgl's own nv3007 driver, I needed to write a new Zephyr nv3007 display driver on mipi-dbi-spi. Zephyr's LVGL then runs cleanly on top of this.

Initially, I developed the driver inside of ncs (`/opt/nordic/ncs/v3.1.1`) as it allowed cloning and modifying existing drivers.
However, when I brought the driver into my own project to be build "out of tree" it would always fail to link the devicetree node.

The solution is here: devzone.nordicsemi.com/.../out-of-tree-driver---zephyr-freestanding-app specifically, replacing:

`add_subdirectory(drivers)` with `list(APPEND ZEPHYR_EXTRA_MODULES ${CMAKE_CURRENT_SOURCE_DIR}/drivers)`

RE: Out of tree LVGL driver

Øyvind — Wed, 19 Nov 2025 14:02:55 GMT

Hello,

[quote user=""]I am attempting to interface an nRF54L15 to an NV3007 LCD display and make use of LVGL.[/quote]

What version of the nRF Connect SDK are you running? This will determine what version of LVGL is bundled. There does not seem to be any drivers for the NV3007 LCD display in the Zephyr repository. You might have to add these yourself, have a look at Lesson 7 in the Developer Academy course nRF Connect SDK Intermediate

[quote user=""]1. Is it possible to build this driver out of tree as part of my app code, or is lvgl.a perhaps not exporting these symbols?
2. Is it possible to use the latest lvgl with Zephyr on nRF54L15?
3. Is there some other way to resolve this?[/quote]

I would yes to all of the above, you just need to get the correct drivers for the device. There are several displays supported in the Zephyr OS i.e. The Display subsystem in Zephyr provides a unified way to interact with a wide range of display devices. You might have to reach out to the Zephyr community on Discord, where I see there is a question about the NV3007 display (without answers).

What happens if you just copy the driver files from that Git hash into modules\lib\gui\lvgl\src\drivers\display? https://github.com/lvgl/lvgl/commit/ae32d5ae6c91c680be87d51055551a1b8ba12250

Kind regards,
Øyvind