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register the touchscreen(eeti_egalax) in the earlysuspend to save power consume

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This commit is contained in:
蔡伟立
2011-08-29 14:53:42 +08:00
parent 49292f6261
commit 690206ef56
1 changed files with 56 additions and 2 deletions
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58
drivers/input/touchscreen/eeti_egalax_i2c.c
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@@ -41,6 +41,10 @@
#include <linux/async.h>
#include <mach/board.h>
#ifdef CONFIG_HAS_EARLYSUSPEND
#include <linux/earlysuspend.h>
#endif
//#define DEBUG
#ifdef CONFIG_EETI_EGALAX_DEBUG
#define TS_DEBUG(fmt,args...) printk( KERN_DEBUG "[egalax_i2c]: " fmt, ## args)
@@ -67,6 +71,8 @@ static int global_minor = 0;
#define EGALAX_IOCWAKEUP _IO(EGALAX_IOC_MAGIC, 1)
#define EGALAX_IOC_MAXNR 1
#define EETI_EARLYSUSPEND_LEVEL 151
struct point_data {
short Status;
short X;
@@ -83,6 +89,13 @@ struct _egalax_i2c {
int irq;
};
#ifdef CONFIG_HAS_EARLYSUSPEND
struct suspend_info {
struct early_suspend early_suspend;
struct _egalax_i2c *egalax_i2c;
};
#endif
struct egalax_char_dev
{
int OpenCnts;
@@ -588,11 +601,45 @@ static int egalax_i2c_resume(struct i2c_client *client)
return 0;
}
#ifdef CONFIG_HAS_EARLYSUSPEND
static void egalax_i2c_early_suspend(struct early_suspend *h)
{
pm_message_t mesg = {.event = 0};
struct suspend_info *info = container_of(h,struct suspend_info,early_suspend);
struct i2c_client *client = info->egalax_i2c->client;
egalax_i2c_suspend(client,mesg);
}
static void egalax_i2c_early_resume(struct early_suspend *h)
{
struct suspend_info *info = container_of(h,struct suspend_info,early_suspend);
struct i2c_client *client = info->egalax_i2c->client;
egalax_i2c_resume(client);
}
#endif
#else
#define egalax_i2c_suspend NULL
#define egalax_i2c_resume NULL
#endif
#ifdef CONFIG_HAS_EARLYSUSPEND
static struct suspend_info suspend_info = {
.early_suspend.suspend = egalax_i2c_early_suspend,
.early_suspend.resume = egalax_i2c_early_resume,
.early_suspend.level = EETI_EARLYSUSPEND_LEVEL,
};
#endif
static int __devinit egalax_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
int ret;
@@ -654,6 +701,13 @@ if (pdata->init_platform_hw)
device_init_wakeup(&client->dev, 0);
#endif
#ifdef CONFIG_HAS_EARLYSUSPEND
suspend_info.egalax_i2c = p_egalax_i2c_dev;
register_early_suspend(&suspend_info.early_suspend);
#endif
printk(KERN_DEBUG "[egalax_i2c]: probe done\n");
return 0;
@@ -722,8 +776,8 @@ static struct i2c_driver egalax_i2c_driver = {
.id_table = egalax_i2c_idtable,
.probe = egalax_i2c_probe,
.remove = __devexit_p(egalax_i2c_remove),
.suspend = egalax_i2c_suspend,
.resume = egalax_i2c_resume,
//.suspend = egalax_i2c_suspend,
//.resume = egalax_i2c_resume,
};
static const struct file_operations egalax_cdev_fops = {