Depending on the quality of the touch panel, the time for the X-, X+, Y-
and Y+ inputs to settle may vary. The poll_delay parameter can be used
to override the default of 1 millisecond.
Cc: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Cc: Kwangwoo Lee <kwlee@xxxxxxxxxxxxxx>
Signed-off-by: Thierry Reding <thierry.reding@xxxxxxxxxxxxxxxxx>
---
drivers/input/touchscreen/tsc2007.c | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
index 95d619c..43b5c09 100644
--- a/drivers/input/touchscreen/tsc2007.c
+++ b/drivers/input/touchscreen/tsc2007.c
@@ -27,7 +27,6 @@
#include <linux/i2c.h>
#include <linux/i2c/tsc2007.h>
-#define TS_POLL_DELAY 1 /* ms delay between samples */
#define TS_POLL_PERIOD 1 /* ms delay between samples */
#define TSC2007_MEASURE_TEMP0 (0x0 << 4)
@@ -83,6 +82,10 @@ struct tsc2007 {
void (*clear_penirq)(void);
};
+static int poll_delay = 1;
+module_param(poll_delay, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(poll_delay, "Delay (in ms) after pen-down event before polling starts");
+
static int max_rt = MAX_12BIT;
module_param(max_rt, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(max_rt, "Maximum resistance above which samples are ignored");
@@ -245,7 +248,7 @@ static irqreturn_t tsc2007_irq(int irq, void *handle)
if (!ts->get_pendown_state || likely(ts->get_pendown_state())) {
disable_irq_nosync(ts->irq);
schedule_delayed_work(&ts->work,
- msecs_to_jiffies(TS_POLL_DELAY));
+ msecs_to_jiffies(poll_delay));
}
if (ts->clear_penirq)
--
1.7.5.1
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