IPQ_PWM_REG0_PWM_DIV
FIELD_PREP(IPQ_PWM_REG0_PWM_DIV, pwm_div);
pwm_div = FIELD_GET(IPQ_PWM_REG0_PWM_DIV, reg0);
#define IPQ_PWM_MAX_DIV FIELD_MAX(IPQ_PWM_REG0_PWM_DIV)