On Thu, Oct 27, 2016 at 10:44:15AM +0200, H. Nikolaus Schaller wrote:
> this should reduce unnecessary input events.
The duplicates will be filtered out by the input core anyway. I like to
keep the drivers simple.
Thanks.
>
> Signed-off-by: H. Nikolaus Schaller <h...@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
>
--
Dmitry
