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Input: tsc2007 - add poll_period parameter to platform data 

This new parameter allows the polling frequency to be configured while
keeping the default of once every millisecond.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Thierry Reding 2011-05-17 09:32:02 -07:00 committed by Dmitry Torokhov
parent 2d137c7ed2
commit 1af38eac8c
2 changed files with 4 additions and 3 deletions
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6
drivers/input/touchscreen/tsc2007.c
View File

@ -27,8 +27,6 @@
#include <linux/i2c.h>
#include <linux/i2c/tsc2007.h>
#define TS_POLL_PERIOD 1 /* ms delay between samples */
#define TSC2007_MEASURE_TEMP0 (0x0 << 4)
#define TSC2007_MEASURE_AUX (0x2 << 4)
#define TSC2007_MEASURE_TEMP1 (0x4 << 4)
@ -76,6 +74,7 @@ struct tsc2007 {
u16 x_plate_ohms;
u16 max_rt;
unsigned long poll_delay;
unsigned long poll_period;
bool pendown;
int irq;
@ -230,7 +229,7 @@ static void tsc2007_work(struct work_struct *work)
out:
if (ts->pendown || debounced)
schedule_delayed_work(&ts->work,
msecs_to_jiffies(TS_POLL_PERIOD));
msecs_to_jiffies(ts->poll_period));
else
enable_irq(ts->irq);
}
@ -297,6 +296,7 @@ static int __devinit tsc2007_probe(struct i2c_client *client,
ts->x_plate_ohms = pdata->x_plate_ohms;
ts->max_rt = pdata->max_rt ? : MAX_12BIT;
ts->poll_delay = pdata->poll_delay ? : 1;
ts->poll_period = pdata->poll_period ? : 1;
ts->get_pendown_state = pdata->get_pendown_state;
ts->clear_penirq = pdata->clear_penirq;

1
include/linux/i2c/tsc2007.h
View File

@ -9,6 +9,7 @@ struct tsc2007_platform_data {
u16 max_rt; /* max. resistance above which samples are ignored */
unsigned long poll_delay; /* delay (in ms) after pen-down event
before polling starts */
unsigned long poll_period; /* time (in ms) between samples */
int (*get_pendown_state)(void);
void (*clear_penirq)(void); /* If needed, clear 2nd level