Setting MCO to HSE on STM32F4

[exelsior87]

I'm developing on STM32F429.
I am trying to configure an MCO.

&mco1 { status = "okay"; clocks = <&rcc STM32_SRC_HSE MCO1_SEL(MCO1_SEL_HSE)>; }

If I configure it as above, get a syntax error because STM32_SRC_HSE is not defined.
It's defined in the other series,

zephyr/include/zephyr/dt-bindings/clock/stm32f7_clock.h

Lines 30 to 33 in 5969a10

	/** Fixed clocks */
	/* Low speed clocks defined in stm32_common_clocks.h */
	#define STM32_SRC_HSI (STM32_SRC_LSI + 1)
	#define STM32_SRC_HSE (STM32_SRC_HSI + 1)

but why is STM32_SRC_HSE undefined on STM32F4?
LSE and LSI are defined in the stm32_common_clock.h file, so I can use them in f4.
but HSE is not.

zephyr/include/zephyr/dt-bindings/clock/stm32_common_clocks.h

Lines 11 to 13 in 5969a10

	/** Fixed clocks */
	#define STM32_SRC_LSE 0x002
	#define STM32_SRC_LSI 0x003

What is the proper way to set MCO to HSE on stm32f4?
Do I need to set the register myself?

[FRASTM]

@exelsior87 , you're right
Please look at #80509

[exelsior87]

thanks