The chip may report invalid coordinates on touchdown events, so don't
report the initial touchdown event.
Signed-off-by: Lothar Waßmann <l...@karo-electronics.de>
---
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 0298568..565f0cd 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;
--
1.7.10.4
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