clk_HFPERCLKUSART2 26 include/dt-bindings/clock/efm32-cmu.h #define clk_HFPERCLKUSART2 21 clk_HFPERCLKUSART2 26 scripts/dtc/include-prefixes/dt-bindings/clock/efm32-cmu.h #define clk_HFPERCLKUSART2 21