diff options
| author | yiming.li <yiming.li@starfivetech.com> | 2021-03-15 20:45:19 +0300 |
|---|---|---|
| committer | Emil Renner Berthing <kernel@esmil.dk> | 2021-06-07 02:11:17 +0300 |
| commit | 338e5edcb7b1baf43843f490220efe32b6140f81 (patch) | |
| tree | 84b160126245126b38d7a79a1176ee6f8b9d9d53 | |
| parent | d313c5cb394a838272d5f6b7ca17d8aae92eeeb6 (diff) | |
| download | linux-338e5edcb7b1baf43843f490220efe32b6140f81.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.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pwm/pwm-sifive-ptc.c b/drivers/pwm/pwm-sifive-ptc.c index e510181b32bb..9f149a064ed8 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; } |