Failed build of led_ws2812 in ncs v1.5.0

[paul_tanner]

The error is 

CMake Error at ../../../cmake/extensions.cmake:416 (add_library):

   No SOURCES given to target: drivers__spi

This similar to

https://devzone.nordicsemi.com/f/nordic-q-a/72810/custom-board-build-fails-with-sdk-1-5-0-works-with-1-4-0/299782#299782

BUT

It builds OK when building for nrf9160-dk but not when building for actinius_icarus_som

Other builds for actinius_icarus_som work OK.  I guess this is SPI-related?

Any suggestions pls?

[Albrecht Markus Schellenberger]

Hello Paul,

the board actinius_icarus_som, did you add that yourself to your Zephyr repository? I’m working with NCS v1.5.1 currently and it only supports the actinius_icarus by default.

Otherwise, without having seen your application code, I assume that this is a configuration issue as the Build and Running chapter of the WS2812 Sample Application states.

Regards,

Markus

[paul_tanner]

Thx Markus.

I do not remember adding actinius_icarus_som but other samples build ok in v1.5.0 so maybe I did.

The main.c code is unmodified and the overlay file exactly as referenced above.
#include "../nrf52-bindings.h"

&spi3 {
compatible = "nordic,nrf-spim";
mosi-pin = <31>;
led_strip: ws2812@0 {
compatible = "worldsemi,ws2812-spi";
label = "WS2812";

/* SPI */
reg = <0>; /* ignored, but necessary for SPI bindings */
spi-max-frequency = <4000000>;

/* WS2812 */
chain-length = <1>; /* arbitrary; change at will */
spi-one-frame = <0x70>;
spi-zero-frame = <0x40>;
};
};

/ {
aliases {
led-strip = &led_strip;
};
};

I am wondering if CONFIG_WS2812_STRIP_SPI=y (in prj.conf) is supposed to bring in some code that is missing from the v1.5.0 distribution?

Regards, Paul