svn commit: r366640 - stable/12/sys/arm/allwinner

[Andriy Gapon]

Author: avg
Date: Mon Oct 12 10:57:59 2020
New Revision: 366640
URL: https://svnweb.freebsd.org/changeset/base/366640

Log:
  MFC r366139: aw_pwm: fix selection of the prescaler

Modified:
  stable/12/sys/arm/allwinner/aw_pwm.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/arm/allwinner/aw_pwm.c
==============================================================================
--- stable/12/sys/arm/allwinner/aw_pwm.c	Mon Oct 12 10:55:03 2020	(r366639)
+++ stable/12/sys/arm/allwinner/aw_pwm.c	Mon Oct 12 10:57:59 2020	(r366640)
@@ -274,7 +274,7 @@ aw_pwm_channel_config(device_t dev, u_int channel, u_i
 		for (i = 0; i < nitems(aw_pwm_clk_prescaler); i++) {
 			if (aw_pwm_clk_prescaler[i] == 0)
 				continue;
-			div = (AW_PWM_MAX_FREQ * aw_pwm_clk_prescaler[i]) / period_freq;
+			div = AW_PWM_MAX_FREQ / aw_pwm_clk_prescaler[i] / period_freq;
 			if ((div - 1) < AW_PWM_PERIOD_TOTAL_MASK ) {
 				prescaler = i;
 				clk_rate = AW_PWM_MAX_FREQ / aw_pwm_clk_prescaler[i];