diff options
Diffstat (limited to 'drivers/pwm/pwm-atmel.c')
| -rw-r--r-- | drivers/pwm/pwm-atmel.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/drivers/pwm/pwm-atmel.c b/drivers/pwm/pwm-atmel.c index b2f0abbbad63..06d22d0f7b26 100644 --- a/drivers/pwm/pwm-atmel.c +++ b/drivers/pwm/pwm-atmel.c @@ -91,9 +91,6 @@ struct atmel_pwm_chip { * hardware. */ u32 update_pending; - - /* Protects .update_pending */ - spinlock_t lock; }; static inline struct atmel_pwm_chip *to_atmel_pwm_chip(struct pwm_chip *chip) @@ -145,8 +142,6 @@ static void atmel_pwm_update_pending(struct atmel_pwm_chip *chip) static void atmel_pwm_set_pending(struct atmel_pwm_chip *chip, unsigned int ch) { - spin_lock(&chip->lock); - /* * Clear pending flags in hardware because otherwise there might still * be a stale flag in ISR. @@ -154,16 +149,12 @@ static void atmel_pwm_set_pending(struct atmel_pwm_chip *chip, unsigned int ch) atmel_pwm_update_pending(chip); chip->update_pending |= (1 << ch); - - spin_unlock(&chip->lock); } static int atmel_pwm_test_pending(struct atmel_pwm_chip *chip, unsigned int ch) { int ret = 0; - spin_lock(&chip->lock); - if (chip->update_pending & (1 << ch)) { atmel_pwm_update_pending(chip); @@ -171,8 +162,6 @@ static int atmel_pwm_test_pending(struct atmel_pwm_chip *chip, unsigned int ch) ret = 1; } - spin_unlock(&chip->lock); - return ret; } @@ -509,7 +498,6 @@ static int atmel_pwm_probe(struct platform_device *pdev) atmel_pwm->data = of_device_get_match_data(&pdev->dev); atmel_pwm->update_pending = 0; - spin_lock_init(&atmel_pwm->lock); atmel_pwm->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(atmel_pwm->base)) |