diff options
| -rw-r--r-- | drivers/pwm/pwm-sun4i.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c index 1afd41ebd3fd..6b230029dc49 100644 --- a/drivers/pwm/pwm-sun4i.c +++ b/drivers/pwm/pwm-sun4i.c @@ -248,19 +248,18 @@ static int sun4i_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, } } - spin_lock(&sun4i_pwm->ctrl_lock); - ctrl = sun4i_pwm_readl(sun4i_pwm, PWM_CTRL_REG); - ret = sun4i_pwm_calculate(sun4i_pwm, state, &duty, &period, &prescaler, &bypass); if (ret) { dev_err(chip->dev, "period exceeds the maximum value\n"); - spin_unlock(&sun4i_pwm->ctrl_lock); if (!cstate.enabled) clk_disable_unprepare(sun4i_pwm->clk); return ret; } + spin_lock(&sun4i_pwm->ctrl_lock); + ctrl = sun4i_pwm_readl(sun4i_pwm, PWM_CTRL_REG); + if (sun4i_pwm->data->has_direct_mod_clk_output) { if (bypass) { ctrl |= BIT_CH(PWM_BYPASS, pwm->hwpwm); |