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mode(I2C_MODE_POLL) is ok

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This commit is contained in:
kfx 2010-08-11 18:21:48 +08:00
parent c3a143b9ea
commit a9617e0b30
1 changed files with 6 additions and 4 deletions
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10
drivers/i2c/busses/i2c-rk2818.c
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@ -35,7 +35,7 @@
#define RK2818_I2C_TIMEOUT (msecs_to_jiffies(500))
#define RK2818_DELAY_TIME 2
#if 0
#if 1
#define i2c_dbg(dev, format, arg...) \
dev_printk(KERN_INFO , dev , format , ## arg)
#else
@ -202,20 +202,22 @@ static irqreturn_t rk2818_i2c_irq(int irq, void *data)
rk2818_i2c_disable_irqs(i2c);
spin_lock(&i2c->cmd_lock);
res = rk2818_event_occurred(i2c);
if(res || i2c->cmd_err != RK2818_ERROR_NONE)
if(res)
//if(res || i2c->cmd_err != RK2818_ERROR_NONE)
complete(&i2c->cmd_complete);
spin_unlock(&i2c->cmd_lock);
return IRQ_HANDLED;
}
static int wait_for_completion_poll_timeout(struct rk2818_i2c_data *i2c, unsigned long timeout)
{
unsigned int time = 10;
unsigned int time = RK2818_DELAY_TIME;
int res;
while(!time_after(jiffies, timeout))
{
res = rk2818_event_occurred(i2c);
if(res || i2c->cmd_err != RK2818_ERROR_NONE)
if(res)
//if(res || (i2c->cmd_err != RK2818_ERROR_NONE && i2c->cmd_err != RK2818_ERROR_UNKNOWN))
return 1;
udelay(time);
time *= 2;