SPI and GPIOs defined via device tree report as "undefined references" at linking time.

[Anthony Ambuehl]

NCS 2.3.0

nrf5340dk_nrf5340_ns  -- problem is in non-secure domain for an app built with TFM.

I have this in my nrf5340dk_nrf5340_cpuapp_ns.overlay:

&pinctrl {	
	spi2_default: spi2_default {
		group1 {
			psels = <NRF_PSEL(SPIS_SCK, 1, 0)>,
				<NRF_PSEL(SPIS_MISO, 1, 1)>,
				<NRF_PSEL(SPIS_MOSI, 1, 4)>,
				<NRF_PSEL(SPIS_CSN, 1, 5)>;
		};
	};

	spi2_sleep: spi2_sleep {
		group1 {
			psels = <NRF_PSEL(SPIS_SCK, 1, 0)>,
				<NRF_PSEL(SPIS_MISO, 1, 1)>,
				<NRF_PSEL(SPIS_MOSI, 1, 4)>,
				<NRF_PSEL(SPIS_CSN, 1, 5)>;
			low-power-enable;
		};
	};
};
&spi2 {
	compatible = "nordic,nrf-spis";
	status = "okay";
	pinctrl-0 = <&spi2_default>;
	pinctrl-1 = <&spi2_sleep>;
	pinctrl-names = "default", "sleep";
	def-char = <0xFF>;
	overrun-character = <0xaa>;
	ipc_spi_device: spi-device@0 {
		reg = <0>;
	};
};

/ {
    spi_ipc_outputs 
    {
	compatible = "gpio-leds";
	spi_ipc_sync: spi_ipc_sync_pin 
        {
		gpios = <&gpio1 6 (GPIO_PULL_UP | GPIO_OPEN_DRAIN)>;
		label = "SPI_IPC_SYNC pin";
	};
    };
    spi_ipc_inputs 
    {
	compatible = "gpio-keys";
	spi_csn: spi_csn_pin 
        {
		gpios = <&gpio1 5 0>;
		label = "SPI_IPC_CSN pin";
	};
    };
};


/ {
	aliases {
		ipc-spi = &spi2;
		ipc-sync = &spi_ipc_sync;
		ipc-csn = &spi_csn;
	};
};

at compile time everything is fine, but at linking I get these errors:

[421/442] Linking C executable zephyr\zephyr_pre0.elf
FAILED: zephyr/zephyr_pre0.elf zephyr/zephyr_pre0.map
cmd.exe /C "cd . && D:\AAA\toolchains\v2.3.0\opt\zephyr-sdk\arm-zephyr-eabi\bin\arm-zephyr-eabi-gcc.exe -gdwarf-4 @CMakeFiles\zephyr_pre0.rsp -o zephyr\zephyr_pre0.elf && cmd.exe /C "cd /D D:\AAA\AAAProject\fota\app\build_shell\zephyr && D:\AAA\toolchains\v2.3.0\opt\bin\cmake.exe -E echo ""
d:/AAA/toolchains/v2.3.0/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.1.0/../../../../arm-zephyr-eabi/bin/ld.exe: app/libapp.a(main.c.obj):(.rodata.m_spi_ipc_mod+0x8): undefined reference to `__device_dts_ord_144'
d:/AAA/toolchains/v2.3.0/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.1.0/../../../../arm-zephyr-eabi/bin/ld.exe: app/libapp.a(main.c.obj):(.rodata.m_spi_ipc_mod+0x10): undefined reference to `__device_dts_ord_142'
d:/AAA/toolchains/v2.3.0/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.1.0/../../../../arm-zephyr-eabi/bin/ld.exe: app/libapp.a(main.c.obj):(.rodata.m_spi_ipc_mod+0x30): undefined reference to `__device_dts_ord_139

Is there something special I need to do to make these device tree entries available in the non-secure partition?  

How do I fix this error?