Messages in this thread Patch in this message | | | From | "H. Nikolaus Schaller" <> | Subject | [PATCH v2 2/8] drivers:input:tsc2007: send pendown and penup only once like ads7846(+tsc2046) driver does | Date | Fri, 13 Nov 2015 21:35:53 +0100 |
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this should reduce unnecessary input events.
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> --- drivers/input/touchscreen/tsc2007.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c index e0c7173..1a8a79d 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); @@ -251,7 +252,10 @@ static irqreturn_t tsc2007_soft_irq(int irq, void *handle) dev_dbg(&ts->client->dev, "shaped point(%4d,%4d), pressure (%4u)\n", tc.x, tc.y, rt); - input_report_key(input, BTN_TOUCH, 1); + if (!ts->pendown) { + input_report_key(input, BTN_TOUCH, 1); + ts->pendown = true; + } input_report_abs(input, ABS_X, tc.x); input_report_abs(input, ABS_Y, tc.y); input_report_abs(input, ABS_PRESSURE, rt); @@ -272,9 +276,13 @@ 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(); -- 2.5.1
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