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Message-Id: <dbfd2bb0ea89e6a3aa7fa6d54cfffe338b9771d6.1476712675.git.hns@goldelico.com>
Date: Mon, 17 Oct 2016 15:57:50 +0200
From: "H. Nikolaus Schaller" <hns@...delico.com>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Benoît Cousson <bcousson@...libre.com>,
Tony Lindgren <tony@...mide.com>,
Russell King <linux@...linux.org.uk>,
Arnd Bergmann <arnd@...db.de>,
Michael Welling <mwelling@...e.org>,
Mika Penttilä <mika.penttila@...tfour.com>,
Javier Martinez Canillas <javier@....samsung.com>,
Igor Grinberg <grinberg@...pulab.co.il>,
Sebastian Reichel <sre@...nel.org>,
"Andrew F. Davis" <afd@...com>,
"H. Nikolaus Schaller" <hns@...delico.com>,
Mark Brown <broonie@...nel.org>,
Jonathan Cameron <jic23@...nel.org>
Cc: linux-input@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
letux-kernel@...nphoenux.org, linux-iio@...r.kernel.org,
kernel@...a-handheld.com
Subject: [PATCH v4 2/8] drivers:input:tsc2007: send pendown and penup only once like ads7846(+tsc2046) driver does
this should reduce unnecessary input events.
Signed-off-by: H. Nikolaus Schaller <hns@...delico.com>
---
drivers/input/touchscreen/tsc2007.c | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
index c1d9593..e9d5086 100644
--- a/drivers/input/touchscreen/tsc2007.c
+++ b/drivers/input/touchscreen/tsc2007.c
@@ -94,6 +94,7 @@ struct tsc2007 {
wait_queue_head_t wait;
bool stopped;
+ bool pendown;
int (*get_pendown_state)(struct device *);
void (*clear_penirq)(void);
@@ -227,7 +228,11 @@ static irqreturn_t tsc2007_soft_irq(int irq, void *handle)
sx, sy, rt);
/* report event */
- input_report_key(input, BTN_TOUCH, 1);
+ if (!ts->pendown) {
+ input_report_key(input, BTN_TOUCH, 1);
+ ts->pendown = true;
+ }
+
touchscreen_report_pos(ts->input, &ts->prop,
(unsigned int) sx,
(unsigned int) sy,
@@ -250,9 +255,13 @@ static irqreturn_t tsc2007_soft_irq(int irq, void *handle)
dev_dbg(&ts->client->dev, "UP\n");
- input_report_key(input, BTN_TOUCH, 0);
- input_report_abs(input, ABS_PRESSURE, 0);
- input_sync(input);
+ if (ts->pendown) {
+ input_report_key(input, BTN_TOUCH, 0);
+ input_report_abs(input, ABS_PRESSURE, 0);
+ input_sync(input);
+
+ ts->pendown = false;
+ }
if (ts->clear_penirq)
ts->clear_penirq();
--
2.7.3
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