Defined in 4 files as a macro:
- sys/arch/arm/broadcom/bcm2835_pwm.c, line 81 (as a macro)
- sys/arch/arm/rockchip/rk_pwm.c, line 82 (as a macro)
- sys/arch/arm/samsung/exynos_pwm.c, line 83 (as a macro)
- sys/arch/arm/sunxi/sunxi_pwm.c, line 77 (as a macro)