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authoryiming.li <yiming.li@starfivetech.com>2021-03-15 20:45:19 +0300
committerEmil Renner Berthing <kernel@esmil.dk>2021-09-27 03:08:15 +0300
commit7cf2ace63f66f925bb643d372ff4054941d94257 (patch)
treeb48ba364ae242d7419ff19d0274b5e6129f1281e
parentd8956cba01b5bc36072add5b189a483f4f327bba (diff)
downloadlinux-7cf2ace63f66f925bb643d372ff4054941d94257.tar.xz
drivers/pwm/pwm-sifive-ptc: Clear PWM CNTR
Clear CNTR of PWM after setting period & duty_cycle
-rw-r--r--drivers/pwm/pwm-sifive-ptc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pwm/pwm-sifive-ptc.c b/drivers/pwm/pwm-sifive-ptc.c
index 599059805e87..29e29844799d 100644
--- a/drivers/pwm/pwm-sifive-ptc.c
+++ b/drivers/pwm/pwm-sifive-ptc.c
@@ -167,6 +167,10 @@ static int sifive_pwm_ptc_apply(struct pwm_chip *chip, struct pwm_device *dev, s
printk("[sifive_pwm_ptc_config]lrc ok....\n");
#endif
+ /* Clear REG_RPTC_CNTR after setting period & duty_cycle*/
+ reg_addr = REG_PTC_RPTC_CNTR(pwm->regs, dev->hwpwm);
+ iowrite32(0, reg_addr);
+
return 0;
}