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rk29phone:fix touch screen gt801's printing log when it sleeps out

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This commit is contained in:
hhb 2011-04-20 20:29:31 +08:00
parent f07e8d9799
commit fce79ee94b
1 changed files with 27 additions and 8 deletions
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35
drivers/input/touchscreen/gt801_ts.c
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@ -13,6 +13,7 @@
* GNU General Public License for more details.
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/earlysuspend.h>
@ -210,7 +211,10 @@ static void gt801_ts_work_func(struct work_struct *work)
x = ((( ((unsigned short)buf[i+ptxh] )<< 8) ) | buf[i+ptxl]);
y = (((((unsigned short)buf[i+ptyh] )<< 8) )| buf[i+ptyl]);
/* adjust the x and y to proper value added by hhb@rock-chips.com*/
x = 480-x;
if(x < 480){
x = 480-x;
}
if(y < 800){
y = 800-y;
}
@ -260,11 +264,12 @@ static enum hrtimer_restart gt801_ts_timer_func(struct hrtimer *timer)
static irqreturn_t gt801_ts_irq_handler(int irq, void *dev_id)
{
struct gt801_ts_data *ts = dev_id;
gt801printk("%s=%d,%d\n",__FUNCTION__,ts->client->irq,ts->use_irq);
gt801printk("%s=%d,%d\n",__FUNCTION__,ts->client->irq,ts->use_irq);
//if (ts->use_irq)
if(ts->use_irq){
disable_irq_nosync(ts->client->irq);
queue_work(gt801_wq, &ts->work);
}
queue_work(gt801_wq, &ts->work);
return IRQ_HANDLED;
}
static int __devinit setup_resetPin(struct i2c_client *client, struct gt801_ts_data *ts)
@ -572,6 +577,17 @@ static int gt801_ts_suspend(struct i2c_client *client, pm_message_t mesg)
return 0;
}
static void gt801_ts_resume_work_func(struct work_struct *work)
{
struct gt801_ts_data *ts = container_of(work, struct gt801_ts_data, work);
msleep(50); //touch panel will generate an interrupt when it sleeps out,so as to avoid tihs by delaying 50ms
enable_irq(ts->client->irq);
PREPARE_WORK(&ts->work, gt801_ts_work_func);
printk("enabling gt801_ts IRQ %d\n", ts->client->irq);
}
static int gt801_ts_resume(struct i2c_client *client)
{
struct gt801_ts_data *ts = i2c_get_clientdata(client);
@ -581,13 +597,16 @@ static int gt801_ts_resume(struct i2c_client *client)
printk("gt801 TS Resume\n");
gpio_set_value(ts->gpio_reset, ts->gpio_reset_active_low? GPIO_HIGH:GPIO_LOW);
msleep(50);
if (ts->use_irq) {
printk("enabling IRQ %d\n", client->irq);
enable_irq(client->irq);
if(!work_pending(&ts->work)){
PREPARE_WORK(&ts->work, gt801_ts_resume_work_func);
queue_work(gt801_wq, &ts->work);
}
}
else
else {
hrtimer_start(&ts->timer, ktime_set(1, 0), HRTIMER_MODE_REL);
}
return 0;
}