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Commit 2d137c7e authored by Thierry Reding's avatar Thierry Reding Committed by Dmitry Torokhov
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Input: tsc2007 - add poll_delay parameter to platform data 



Depending on the quality of the touch panel, the time for the X-, X+, Y-
and Y+ inputs to settle may vary. The poll_delay parameter can be used
to override the default of 1 millisecond.

Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Kwangwoo Lee <kwangwoo.lee@gmail.com>
Signed-off-by: default avatarThierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 84005eb5

drivers/input/touchscreen/tsc2007.c

+3 −2
Original line number Diff line number Diff line
@@ -27,7 +27,6 @@ 
#include <linux/i2c.h>

#include <linux/i2c/tsc2007.h>



#define TS_POLL_DELAY			1 /* ms delay between samples */

#define TS_POLL_PERIOD			1 /* ms delay between samples */



#define TSC2007_MEASURE_TEMP0		(0x0 << 4)
@@ -76,6 +75,7 @@ struct tsc2007 { 
	u16			model;

	u16			x_plate_ohms;

	u16			max_rt;

	unsigned long		poll_delay;



	bool			pendown;

	int			irq;
@@ -242,7 +242,7 @@ static irqreturn_t tsc2007_irq(int irq, void *handle) 
	if (!ts->get_pendown_state || likely(ts->get_pendown_state())) {

		disable_irq_nosync(ts->irq);

		schedule_delayed_work(&ts->work,

				      msecs_to_jiffies(TS_POLL_DELAY));

				      msecs_to_jiffies(ts->poll_delay));

	}



	if (ts->clear_penirq)
@@ -296,6 +296,7 @@ static int __devinit tsc2007_probe(struct i2c_client *client, 
	ts->model             = pdata->model;

	ts->x_plate_ohms      = pdata->x_plate_ohms;

	ts->max_rt            = pdata->max_rt ? : MAX_12BIT;

	ts->poll_delay        = pdata->poll_delay ? : 1;

	ts->get_pendown_state = pdata->get_pendown_state;

	ts->clear_penirq      = pdata->clear_penirq;

include/linux/i2c/tsc2007.h

+2 −0
Original line number Diff line number Diff line
@@ -7,6 +7,8 @@ struct tsc2007_platform_data { 
	u16	model;				/* 2007. */

	u16	x_plate_ohms;

	u16	max_rt; /* max. resistance above which samples are ignored */

	unsigned long poll_delay; /* delay (in ms) after pen-down event

				     before polling starts */



	int	(*get_pendown_state)(void);

	void	(*clear_penirq)(void);		/* If needed, clear 2nd level