lkml.org 
[lkml]   [2016]   [Oct]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v5 2/8] drivers:input:tsc2007: send pendown and penup only once like ads7846(+tsc2046) driver does
Date
this should reduce unnecessary input events.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.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
\
 
 \ /
  Last update: 2016-10-25 21:27    [W:0.068 / U:1.288 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site