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path: root/drivers/input/touchscreen/ucb1400_ts.c
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Diffstat (limited to 'drivers/input/touchscreen/ucb1400_ts.c')
-rw-r--r--drivers/input/touchscreen/ucb1400_ts.c26
1 files changed, 19 insertions, 7 deletions
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index e8606c48c9c..6582816a047 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -97,6 +97,8 @@ struct ucb1400 {
};
static int adcsync;
+static int ts_delay = 55; /* us */
+static int ts_delay_pressure; /* us */
static inline u16 ucb1400_reg_read(struct ucb1400 *ucb, u16 reg)
{
@@ -159,6 +161,7 @@ static inline unsigned int ucb1400_ts_read_pressure(struct ucb1400 *ucb)
UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ udelay(ts_delay_pressure);
return ucb1400_adc_read(ucb, UCB_ADC_INP_TSPY);
}
@@ -180,7 +183,7 @@ static inline unsigned int ucb1400_ts_read_xpos(struct ucb1400 *ucb)
UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
- udelay(55);
+ udelay(ts_delay);
return ucb1400_adc_read(ucb, UCB_ADC_INP_TSPY);
}
@@ -203,7 +206,7 @@ static inline unsigned int ucb1400_ts_read_ypos(struct ucb1400 *ucb)
UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
- udelay(55);
+ udelay(ts_delay);
return ucb1400_adc_read(ucb, UCB_ADC_INP_TSPX);
}
@@ -369,7 +372,7 @@ static irqreturn_t ucb1400_hard_irq(int irqnr, void *devid)
static int ucb1400_ts_open(struct input_dev *idev)
{
- struct ucb1400 *ucb = idev->private;
+ struct ucb1400 *ucb = input_get_drvdata(idev);
int ret = 0;
BUG_ON(ucb->ts_task);
@@ -385,7 +388,7 @@ static int ucb1400_ts_open(struct input_dev *idev)
static void ucb1400_ts_close(struct input_dev *idev)
{
- struct ucb1400 *ucb = idev->private;
+ struct ucb1400 *ucb = input_get_drvdata(idev);
if (ucb->ts_task)
kthread_stop(ucb->ts_task);
@@ -507,8 +510,9 @@ static int ucb1400_ts_probe(struct device *dev)
}
printk(KERN_DEBUG "UCB1400: found IRQ %d\n", ucb->irq);
- idev->private = ucb;
- idev->cdev.dev = dev;
+ input_set_drvdata(idev, ucb);
+
+ idev->dev.parent = dev;
idev->name = "UCB1400 touchscreen interface";
idev->id.vendor = ucb1400_reg_read(ucb, AC97_VENDOR_ID1);
idev->id.product = id;
@@ -571,7 +575,15 @@ static void __exit ucb1400_ts_exit(void)
driver_unregister(&ucb1400_ts_driver);
}
-module_param(adcsync, int, 0444);
+module_param(adcsync, bool, 0444);
+MODULE_PARM_DESC(adcsync, "Synchronize touch readings with ADCSYNC pin.");
+
+module_param(ts_delay, int, 0444);
+MODULE_PARM_DESC(ts_delay, "Delay between panel setup and position read. Default = 55us.");
+
+module_param(ts_delay_pressure, int, 0444);
+MODULE_PARM_DESC(ts_delay_pressure,
+ "delay between panel setup and pressure read. Default = 0us.");
module_init(ucb1400_ts_init);
module_exit(ucb1400_ts_exit);