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Diffstat (limited to 'drivers/sbus/char/vfc_i2c.c')
-rw-r--r--drivers/sbus/char/vfc_i2c.c19
1 files changed, 2 insertions, 17 deletions
diff --git a/drivers/sbus/char/vfc_i2c.c b/drivers/sbus/char/vfc_i2c.c
index 1faf1e75f71f..739cad9b19a1 100644
--- a/drivers/sbus/char/vfc_i2c.c
+++ b/drivers/sbus/char/vfc_i2c.c
@@ -79,25 +79,10 @@ int vfc_pcf8584_init(struct vfc_dev *dev)
79 return 0; 79 return 0;
80} 80}
81 81
82void vfc_i2c_delay_wakeup(struct vfc_dev *dev)
83{
84 /* Used to profile code and eliminate too many delays */
85 VFC_I2C_DEBUG_PRINTK(("vfc%d: Delaying\n", dev->instance));
86 wake_up(&dev->poll_wait);
87}
88
89void vfc_i2c_delay_no_busy(struct vfc_dev *dev, unsigned long usecs) 82void vfc_i2c_delay_no_busy(struct vfc_dev *dev, unsigned long usecs)
90{ 83{
91 DEFINE_WAIT(wait); 84 set_current_state(TASK_UNINTERRUPTIBLE);
92 init_timer(&dev->poll_timer); 85 schedule_timeout(usecs_to_jiffies(usecs));
93 dev->poll_timer.expires = jiffies + usecs_to_jiffies(usecs);
94 dev->poll_timer.data=(unsigned long)dev;
95 dev->poll_timer.function=(void *)(unsigned long)vfc_i2c_delay_wakeup;
96 add_timer(&dev->poll_timer);
97 prepare_to_wait(&dev->poll_wait, &wait, TASK_UNINTERRUPTIBLE);
98 schedule();
99 del_timer(&dev->poll_timer);
100 finish_wait(&dev->poll_wait, &wait);
101} 86}
102 87
103void inline vfc_i2c_delay(struct vfc_dev *dev) 88void inline vfc_i2c_delay(struct vfc_dev *dev)