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-rw-r--r--drivers/sbus/char/vfc.h2
-rw-r--r--drivers/sbus/char/vfc_dev.c1
-rw-r--r--drivers/sbus/char/vfc_i2c.c19
3 files changed, 2 insertions, 20 deletions
diff --git a/drivers/sbus/char/vfc.h b/drivers/sbus/char/vfc.h
index e56a43af0f62..a7782e7da42e 100644
--- a/drivers/sbus/char/vfc.h
+++ b/drivers/sbus/char/vfc.h
@@ -129,8 +129,6 @@ struct vfc_dev {
129 struct vfc_regs *phys_regs; 129 struct vfc_regs *phys_regs;
130 unsigned int control_reg; 130 unsigned int control_reg;
131 struct semaphore device_lock_sem; 131 struct semaphore device_lock_sem;
132 struct timer_list poll_timer;
133 wait_queue_head_t poll_wait;
134 int instance; 132 int instance;
135 int busy; 133 int busy;
136 unsigned long which_io; 134 unsigned long which_io;
diff --git a/drivers/sbus/char/vfc_dev.c b/drivers/sbus/char/vfc_dev.c
index 86ce54130954..7a103698fa3c 100644
--- a/drivers/sbus/char/vfc_dev.c
+++ b/drivers/sbus/char/vfc_dev.c
@@ -137,7 +137,6 @@ int init_vfc_devstruct(struct vfc_dev *dev, int instance)
137 dev->instance=instance; 137 dev->instance=instance;
138 init_MUTEX(&dev->device_lock_sem); 138 init_MUTEX(&dev->device_lock_sem);
139 dev->control_reg=0; 139 dev->control_reg=0;
140 init_waitqueue_head(&dev->poll_wait);
141 dev->busy=0; 140 dev->busy=0;
142 return 0; 141 return 0;
143} 142}
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)