76 	u32 val, duty, prescale;  in sprd_pwm_get_state()  local
99 	 * The period length is (PRESCALE + 1) * MOD counter steps.  in sprd_pwm_get_state()
100 	 * The duty cycle length is (PRESCALE + 1) * DUTY counter steps.  in sprd_pwm_get_state()
102 	 * period_ns = NSEC_PER_SEC * (prescale + 1) * mod / clk_rate  in sprd_pwm_get_state()
103 	 * duty_ns = NSEC_PER_SEC * (prescale + 1) * duty / clk_rate  in sprd_pwm_get_state()
106 	prescale = val & SPRD_PWM_PRESCALE_MSK;  in sprd_pwm_get_state()
107 	tmp = (prescale + 1) * NSEC_PER_SEC * SPRD_PWM_MOD_MAX;  in sprd_pwm_get_state()
112 	tmp = (prescale + 1) * NSEC_PER_SEC * duty;  in sprd_pwm_get_state()
127 	u32 prescale, duty;  in sprd_pwm_config()  local
132 	 * The period length is (PRESCALE + 1) * MOD counter steps.  in sprd_pwm_config()
133 	 * The duty cycle length is (PRESCALE + 1) * DUTY counter steps.  in sprd_pwm_config()
136 	 * The value for PRESCALE is selected such that the resulting period  in sprd_pwm_config()
144 	prescale = DIV_ROUND_CLOSEST_ULL(tmp, SPRD_PWM_MOD_MAX) - 1;  in sprd_pwm_config()
145 	if (prescale > SPRD_PWM_PRESCALE_MSK)  in sprd_pwm_config()
146 		prescale = SPRD_PWM_PRESCALE_MSK;  in sprd_pwm_config()
156 	sprd_pwm_write(spc, pwm->hwpwm, SPRD_PWM_PRESCALE, prescale);  in sprd_pwm_config()