/* Enable Peripheral Clock in running mode. 
Enable the clock on particular peripheral. */
void cmu_periph_clock_enable(enum cmu_periph_clken clken)
/* Enable Peripheral Clock in running mode. 
Enable the clock on particular peripheral. */
void cmu_periph_clock_enable(enum cmu_periph_clken clken)
{
	_CMU_REG(clken) |= _CMU_BIT(clken);
}