diff options
Diffstat (limited to 'drivers/pwm/pwm-lpc18xx-sct.c')
| -rw-r--r-- | drivers/pwm/pwm-lpc18xx-sct.c | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/drivers/pwm/pwm-lpc18xx-sct.c b/drivers/pwm/pwm-lpc18xx-sct.c index f351baa63453..1e614b2a0227 100644 --- a/drivers/pwm/pwm-lpc18xx-sct.c +++ b/drivers/pwm/pwm-lpc18xx-sct.c @@ -100,8 +100,6 @@ struct lpc18xx_pwm_chip { u64 max_period_ns; unsigned int period_event; unsigned long event_map; - struct mutex res_lock; - struct mutex period_lock; struct lpc18xx_pwm_data channeldata[LPC18XX_NUM_PWMS]; }; @@ -129,8 +127,6 @@ static void lpc18xx_pwm_set_conflict_res(struct lpc18xx_pwm_chip *lpc18xx_pwm, { u32 val; - mutex_lock(&lpc18xx_pwm->res_lock); - /* * Simultaneous set and clear may happen on an output, that is the case * when duty_ns == period_ns. LPC18xx SCT allows to set a conflict @@ -140,8 +136,6 @@ static void lpc18xx_pwm_set_conflict_res(struct lpc18xx_pwm_chip *lpc18xx_pwm, val &= ~LPC18XX_PWM_RES_MASK(pwm->hwpwm); val |= LPC18XX_PWM_RES(pwm->hwpwm, action); lpc18xx_pwm_writel(lpc18xx_pwm, LPC18XX_PWM_RES_BASE, val); - - mutex_unlock(&lpc18xx_pwm->res_lock); } static void lpc18xx_pwm_config_period(struct pwm_chip *chip, u64 period_ns) @@ -200,8 +194,6 @@ static int lpc18xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, return -ERANGE; } - mutex_lock(&lpc18xx_pwm->period_lock); - requested_events = bitmap_weight(&lpc18xx_pwm->event_map, LPC18XX_PWM_EVENT_MAX); @@ -214,7 +206,6 @@ static int lpc18xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, lpc18xx_pwm->period_ns) { dev_err(pwmchip_parent(chip), "conflicting period requested for PWM %u\n", pwm->hwpwm); - mutex_unlock(&lpc18xx_pwm->period_lock); return -EBUSY; } @@ -224,8 +215,6 @@ static int lpc18xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, lpc18xx_pwm_config_period(chip, period_ns); } - mutex_unlock(&lpc18xx_pwm->period_lock); - lpc18xx_pwm_config_duty(chip, pwm, duty_ns); return 0; @@ -377,9 +366,6 @@ static int lpc18xx_pwm_probe(struct platform_device *pdev) if (lpc18xx_pwm->clk_rate > NSEC_PER_SEC) return dev_err_probe(&pdev->dev, -EINVAL, "pwm clock to fast\n"); - mutex_init(&lpc18xx_pwm->res_lock); - mutex_init(&lpc18xx_pwm->period_lock); - lpc18xx_pwm->max_period_ns = mul_u64_u64_div_u64(NSEC_PER_SEC, LPC18XX_PWM_TIMER_MAX, lpc18xx_pwm->clk_rate); |