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rk2928: act8931: switch charge current when suspend

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This commit is contained in:
xieyi
2012-10-09 18:36:16 +08:00
parent ef39e638be
commit ba3e1d5c4e
2 changed files with 38 additions and 2 deletions
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20
arch/arm/mach-rk2928/board-rk2928-sdk-act8931.c
View File

@@ -8,12 +8,16 @@
#ifdef CONFIG_REGULATOR_ACT8931
#define ACT8931_CHGSEL_PIN RK2928_PIN1_PA1
#define ACT8931_CHGSEL_VALUE GPIO_LOW /* Decline to 20% current */
extern int platform_device_register(struct platform_device *pdev);
static int act8931_set_init(struct act8931 *act8931)
{
struct regulator *dcdc;
struct regulator *ldo;
int ret;
printk("%s,line=%d\n", __func__,__LINE__);
g_pmic_type = PMIC_TYPE_ACT8931;
@@ -73,6 +77,10 @@ static int act8931_set_init(struct act8931 *act8931)
regulator_put(dcdc);
udelay(100);
ret = gpio_request(ACT8931_CHGSEL_PIN, "ACT8931_CHGSEL");
if (ret != 0)
gpio_free(ACT8931_CHGSEL_PIN);
gpio_direction_output(ACT8931_CHGSEL_PIN, ACT8931_CHGSEL_VALUE);
printk("%s,line=%d END\n", __func__,__LINE__);
@@ -273,9 +281,19 @@ static struct act8931_platform_data act8931_data={
.set_init=act8931_set_init,
.num_regulators=7,
.regulators=act8931_regulator_subdev_id,
};
#ifdef CONFIG_HAS_EARLYSUSPEND
void act8931_early_suspend(struct early_suspend *h)
{
gpio_direction_output(ACT8931_CHGSEL_PIN, ACT8931_CHGSEL_VALUE);
}
void act8931_late_resume(struct early_suspend *h)
{
gpio_direction_output(ACT8931_CHGSEL_PIN, !ACT8931_CHGSEL_VALUE);
}
#endif
#endif

20
drivers/regulator/act8931.c
View File

@@ -22,7 +22,10 @@
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <plat/board.h>
#ifdef CONFIG_HAS_EARLYSUSPEND
#include <linux/earlysuspend.h>
#endif
#if 0
#define DBG(x...) printk(KERN_INFO x)
#else
@@ -42,6 +45,7 @@ struct act8931 {
struct i2c_client *i2c;
int num_regulators;
struct regulator_dev **rdev;
struct early_suspend act8931_suspend;
};
static u8 act8931_reg_read(struct act8931 *act8931, u8 reg);
@@ -586,6 +590,12 @@ static irqreturn_t act8931_irq_thread(unsigned int irq, void *dev_id)
rk28_send_wakeup_key();
return IRQ_HANDLED;
}
#ifdef CONFIG_HAS_EARLYSUSPEND
__weak void act8931_early_suspend(struct early_suspend *h) {}
__weak void act8931_late_resume(struct early_suspend *h) {}
#endif
static int __devinit act8931_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
{
struct act8931 *act8931;
@@ -657,6 +667,14 @@ static int __devinit act8931_i2c_probe(struct i2c_client *i2c, const struct i2c_
}
enable_irq_wake(act8931->irq);
#ifdef CONFIG_HAS_EARLYSUSPEND
act8931->act8931_suspend.suspend = act8931_early_suspend,
act8931->act8931_suspend.resume = act8931_late_resume,
act8931->act8931_suspend.level = EARLY_SUSPEND_LEVEL_DISABLE_FB + 1,
register_early_suspend(&act8931->act8931_suspend);
#endif
return 0;
err: