From: David Jander <david@protonic.nl>
Date: Mon, 20 Mar 2017 18:05:29 +0000 (-0700)
Subject: Input: ads7846 - avoid pen up/down when reading hwmon
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f5a28a7d4858f94a2d8b5271ffee607de30050e4;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

Input: ads7846 - avoid pen up/down when reading hwmon

Each time the HWMON devices are read (e.g. battery voltage) while the
touchscreen is held pressed, extra pen-up and pen-down events are
generated. This is fixed by avoiding the UP event when the touchscreen is
stopped.

Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---

diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index f5793e3d945f..735a0be1ad95 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -871,7 +871,7 @@ static irqreturn_t ads7846_irq(int irq, void *handle)
 				   msecs_to_jiffies(TS_POLL_PERIOD));
 	}
 
-	if (ts->pendown) {
+	if (ts->pendown && !ts->stopped) {
 		struct input_dev *input = ts->input;
 
 		input_report_key(input, BTN_TOUCH, 0);