this should reduce unnecessary input events.
Signed-off-by: H. Nikolaus Schaller <hns@xxxxxxxxxxxxx>
---
drivers/input/touchscreen/tsc2007.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
index e0c7173..1a8a79d 100644
--- a/drivers/input/touchscreen/tsc2007.c
+++ b/drivers/input/touchscreen/tsc2007.c
@@ -94,6 +94,7 @@ struct tsc2007 {
wait_queue_head_t wait;
bool stopped;
+ bool pendown;
int (*get_pendown_state)(struct device *);
void (*clear_penirq)(void);
@@ -251,7 +252,10 @@ static irqreturn_t tsc2007_soft_irq(int irq, void *handle)
dev_dbg(&ts->client->dev,
"shaped point(%4d,%4d), pressure (%4u)\n",
tc.x, tc.y, rt);
- input_report_key(input, BTN_TOUCH, 1);
+ if (!ts->pendown) {
+ input_report_key(input, BTN_TOUCH, 1);
+ ts->pendown = true;
+ }
input_report_abs(input, ABS_X, tc.x);
input_report_abs(input, ABS_Y, tc.y);
input_report_abs(input, ABS_PRESSURE, rt);
@@ -272,9 +276,13 @@ static irqreturn_t tsc2007_soft_irq(int irq, void *handle)
dev_dbg(&ts->client->dev, "UP\n");
- input_report_key(input, BTN_TOUCH, 0);
- input_report_abs(input, ABS_PRESSURE, 0);
- input_sync(input);
+ if (ts->pendown) {
+ input_report_key(input, BTN_TOUCH, 0);
+ input_report_abs(input, ABS_PRESSURE, 0);
+ input_sync(input);
+
+ ts->pendown = false;
+ }
if (ts->clear_penirq)
ts->clear_penirq();
--
2.5.1
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