The chip may report invalid coordinates on touchdown events, so don't report the initial touchdown event. Signed-off-by: Lothar Waßmann <LW@xxxxxxxxxxxxxxxxxxx> --- drivers/input/touchscreen/edt-ft5x06.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c index 27dccfc..af736e4 100644 --- a/drivers/input/touchscreen/edt-ft5x06.c +++ b/drivers/input/touchscreen/edt-ft5x06.c @@ -175,6 +175,10 @@ 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; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
