| Message ID | 1395673870-29435-5-git-send-email-LW@KARO-electronics.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c index cc5185a..964b6c2 100644 --- a/drivers/input/touchscreen/edt-ft5x06.c +++ b/drivers/input/touchscreen/edt-ft5x06.c @@ -176,6 +176,10 @@ static irqreturn_t edt_ft5x06_ts_isr(int irq, void *dev_id) if (type == TOUCH_EVENT_RESERVED) continue; + /* ignore TOUCH_DOWN events, might have bogus coordinates */ + if (type == TOUCH_EVENT_DOWN) + continue; + x = ((buf[0] << 8) | buf[1]) & 0x0fff; y = ((buf[2] << 8) | buf[3]) & 0x0fff; id = (buf[2] >> 4) & 0x0f;
The chip may report invalid coordinates on touchdown events, so don't report the initial touchdown event. Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> --- drivers/input/touchscreen/edt-ft5x06.c | 4 ++++ 1 file changed, 4 insertions(+)