void act8846_device_suspend(void)
{
struct regulator *dcdc;
#ifdef CONFIG_ACT8846_SUPPORT_RESET
sram_gpio_set_value(pmic_vsel, GPIO_LOW);
dcdc =dvfs_get_regulator( "vdd_cpu");
vdd_cpu_vol = regulator_get_voltage(dcdc);
regulator_set_voltage(dcdc, 900000, 900000);
udelay(100);
dcdc =dvfs_get_regulator( "vdd_core");
vdd_core_vol = regulator_get_voltage(dcdc);
regulator_set_voltage(dcdc, 900000, 900000);
udelay(100);
dcdc =regulator_get(NULL, "act_dcdc4");
regulator_set_voltage(dcdc, 2800000, 2800000);
regulator_put(dcdc);
udelay(100);
#endif
}
void act8846_device_resume(void)
{
struct regulator *dcdc;
#ifdef CONFIG_ACT8846_SUPPORT_RESET
dcdc =dvfs_get_regulator( "vdd_cpu");
regulator_set_voltage(dcdc, vdd_cpu_vol, vdd_cpu_vol);
udelay(100);
dcdc =dvfs_get_regulator( "vdd_core");
regulator_set_voltage(dcdc, vdd_core_vol, vdd_core_vol);
udelay(100);
dcdc =regulator_get(NULL, "act_dcdc4");
regulator_set_voltage(dcdc, 3000000, 3000000);
regulator_put(dcdc);
udelay(100);
sram_gpio_set_value(pmic_vsel, GPIO_HIGH);
#endif
}
ssize_t clk_volt_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t n)
{
char cmd[20], regulator_name[20];
unsigned int volt;
int ret = 0;
int need_put_regulator=0;
struct regulator *regulator;
printk("%s: %s\n", __func__, buf);
sscanf(buf, "%s %s %u", cmd, regulator_name, &volt);
regulator = dvfs_get_regulator(regulator_name);
if (IS_ERR_OR_NULL(regulator)) {
regulator = regulator_get(NULL, regulator_name);
if (IS_ERR(regulator)){
PM_ERR("%s get dvfs_regulator %s error\n", __func__, regulator_name);
return n;
}
need_put_regulator = 1;
}
if (0 == strncmp(cmd, "set", strlen("set"))){
if (volt & SET_SUSPEND_VOLT_FLAG){
volt &= ~SET_SUSPEND_VOLT_FLAG;
//ret = regulator_set_suspend_voltage(regulator, volt);
if (!ret)
printk("set %s suspend volt to %uuV ok\n", regulator_name, volt);
else
printk("regulator_set_suspend_voltage err:%d\n", ret);
}else{
ret = regulator_set_voltage(regulator, volt, volt);
if (!ret)
printk("set %s volt to %uuV ok\n", regulator_name, regulator_get_voltage(regulator));
else
printk("regulator_set_voltage err:%d\n", ret);
}
}
if (0 == strncmp(cmd, "get", strlen("get"))){
printk("%s:%duV\n", regulator_name, regulator_get_voltage(regulator));
}
if (need_put_regulator)
regulator_put(regulator);
// if (0 == strncmp(cmd, "enable", strlen("enable"))) {
return n;
}
ssize_t clk_auto_volt_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t n)
{
char cmd[10];
char volt_flag[10];
char regulator_name[20];
sscanf(buf, "%s %s %s %u %u %u %u", cmd, volt_flag, regulator_name, &begin_volt, &stop_volt, &volt_step, &timer_tick);
if (0 == strncmp(cmd, "start", strlen("start"))) {
if (0 == strncmp(volt_flag, "up", strlen("up"))) {
if (begin_volt >= stop_volt) {
PM_ERR("wrong! begin_volt >= stop_volt!\n");
return -EINVAL;
}
volt_direction = VOLT_UP;
} else if (0 == strncmp(volt_flag, "down", strlen("down"))) {
if (begin_volt <= stop_volt) {
PM_ERR("wrong! begin_volt <= stop_volt!\n");
return -EINVAL;
}
volt_direction = VOLT_DOWN;
} else {
PM_ERR("argument %s is invalid!\n",volt_flag);
return -EINVAL;
}
regulator = dvfs_get_regulator(regulator_name);
if (IS_ERR_OR_NULL(regulator)) {
PM_ERR("%s get dvfs_regulator %s error\n", __func__, regulator_name);
return -ENOMEM;
}
if (wq_is_run == 1) {
cancel_delayed_work(&scal_volt_work);
flush_workqueue(scal_volt_wq);
//destroy_workqueue(scal_volt_wq);
wq_is_run = 0;
}
PM_DBG("begin!\n");
volt = begin_volt;
scal_volt_wq = create_workqueue("scal volt wq");
INIT_DELAYED_WORK(&scal_volt_work, scal_volt_func);
queue_delayed_work(scal_volt_wq, &scal_volt_work, msecs_to_jiffies(timer_tick*1000));
wq_is_run = 1;
} else if (0 == strncmp(cmd, "stop", strlen("stop"))) {
if (wq_is_run == 1) {
cancel_delayed_work(&scal_volt_work);
flush_workqueue(scal_volt_wq);
//destroy_workqueue(scal_volt_wq);
wq_is_run = 0;
}
} else {
PM_ERR("argument %s is invalid!\n", cmd);
return -EINVAL;
}
return n;
}
