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| author |   Sven Van Asbroeck <TheSven73@gmail.com> | 2019-02-16 22:53:27 -0800 |
|---|---|---|
| committer |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-02-16 22:57:31 -0800 |
| commit | 43bcd820bd61859f5d4f6d9e7da4210ab4fcf448 (patch) | |
| tree | a325e2ee9f37787f5a6bf032c4ad7a27c6cd1ca1 /drivers/input | |
| parent | Input: db9 - mark expected switch fall-through (diff) | |
| download | wireguard-linux-43bcd820bd61859f5d4f6d9e7da4210ab4fcf448.tar.xz wireguard-linux-43bcd820bd61859f5d4f6d9e7da4210ab4fcf448.zip | |
Input: synaptics_i2c - remove redundant spinlock
Remove a leftover spinlock.
This was required back when mod_delayed_work() did not exist, and had to
be implemented with a cancel + queue. See commit e7c2f967445d
("workqueue: use mod_delayed_work() instead of __cancel + queue")
schedule_delayed_work() and mod_delayed_work() can now be used
concurrently. So the spinlock is no longer needed.
Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/mouse/synaptics_i2c.c | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/drivers/input/mouse/synaptics_i2c.c b/drivers/input/mouse/synaptics_i2c.c index 8538318d332c..fa304648d611 100644 --- a/drivers/input/mouse/synaptics_i2c.c +++ b/drivers/input/mouse/synaptics_i2c.c @@ -219,7 +219,6 @@ struct synaptics_i2c { struct i2c_client *client; struct input_dev *input; struct delayed_work dwork; - spinlock_t lock; int no_data_count; int no_decel_param; int reduce_report_param; @@ -369,23 +368,11 @@ static bool synaptics_i2c_get_input(struct synaptics_i2c *touch) return xy_delta || gesture; } -static void synaptics_i2c_reschedule_work(struct synaptics_i2c *touch, - unsigned long delay) -{ - unsigned long flags; - - spin_lock_irqsave(&touch->lock, flags); - - mod_delayed_work(system_wq, &touch->dwork, delay); - - spin_unlock_irqrestore(&touch->lock, flags); -} - static irqreturn_t synaptics_i2c_irq(int irq, void *dev_id) { struct synaptics_i2c *touch = dev_id; - synaptics_i2c_reschedule_work(touch, 0); + mod_delayed_work(system_wq, &touch->dwork, 0); return IRQ_HANDLED; } @@ -461,7 +448,7 @@ static void synaptics_i2c_work_handler(struct work_struct *work) * We poll the device once in THREAD_IRQ_SLEEP_SECS and * if error is detected, we try to reset and reconfigure the touchpad. */ - synaptics_i2c_reschedule_work(touch, delay); + mod_delayed_work(system_wq, &touch->dwork, delay); } static int synaptics_i2c_open(struct input_dev *input) @@ -474,7 +461,7 @@ static int synaptics_i2c_open(struct input_dev *input) return ret; if (polling_req) - synaptics_i2c_reschedule_work(touch, + mod_delayed_work(system_wq, &touch->dwork, msecs_to_jiffies(NO_DATA_SLEEP_MSECS)); return 0; @@ -530,7 +517,6 @@ static struct synaptics_i2c *synaptics_i2c_touch_create(struct i2c_client *clien touch->scan_rate_param = scan_rate; set_scan_rate(touch, scan_rate); INIT_DELAYED_WORK(&touch->dwork, synaptics_i2c_work_handler); - spin_lock_init(&touch->lock); return touch; } @@ -637,7 +623,7 @@ static int __maybe_unused synaptics_i2c_resume(struct device *dev) if (ret) return ret; - synaptics_i2c_reschedule_work(touch, + mod_delayed_work(system_wq, &touch->dwork, msecs_to_jiffies(NO_DATA_SLEEP_MSECS)); return 0; |