From ee3e946e31e6df0f9845f9b3d527252003603530 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Lothar=20Wa=C3=9Fmann?= Date: Fri, 28 Mar 2014 09:28:17 -0700 Subject: [PATCH] Input: edt-ft5x06 - ignore touchdown events MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The chip may report invalid coordinates on touchdown events, so don't report the initial touchdown event. Signed-off-by: Lothar Waßmann Acked-by: Fugang Duan Signed-off-by: Dmitry Torokhov --- 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 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; -- 2.20.1