Defined in 4 files as a label:
- arch/arm/boot/dts/st/stm32f4-pinctrl.dtsi, line 284 (as a label)
- arch/arm/boot/dts/st/stm32f7-pinctrl.dtsi, line 401 (as a label)
- arch/arm/boot/dts/st/stm32mp13-pinctrl.dtsi, line 328 (as a label)
- arch/arm/boot/dts/st/stm32mp15-pinctrl.dtsi, line 1014 (as a label)