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| author | Lothar Waßmann <LW@KARO-electronics.de> | 2014-03-28 17:28:17 +0100 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-03-28 17:33:06 +0100 |
| commit | ee3e946e31e6df0f9845f9b3d527252003603530 (patch) | |
| tree | 2809aa8219cd72483115722beac16380132e8383 | |
| parent | Input: edt-ft5x06 - adjust delays to conform datasheet (diff) | |
| download | linux-ee3e946e31e6df0f9845f9b3d527252003603530.tar.xz linux-ee3e946e31e6df0f9845f9b3d527252003603530.zip | |
Input: edt-ft5x06 - ignore touchdown events
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>
Acked-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| -rw-r--r-- | drivers/input/touchscreen/edt-ft5x06.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c index fd18e580870a..dd94b9eea6e7 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; |