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power: rk818-charger: set otg5v by regulator framework

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because rk818 regulator driver registers all regulators into
system without checking whether they are defined in dts, so we
have to control it by regulator framework. Otherwise,
psci_system_suspend_finish() will disable it after system wakeup.

Change-Id: Ia9d9c0b7a8cf42ccee071ac0416c1ef2f711df2f
Signed-off-by: Jianhong Chen <chenjh@rock-chips.com>
This commit is contained in:
Jianhong Chen 2017-06-15 18:24:54 +08:00 committed by Huang, Tao
parent d222955baf
commit e503851471
1 changed files with 45 additions and 4 deletions
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49
drivers/power/rk818_charger.c
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@ -155,6 +155,7 @@ struct rk818_charger {
unsigned int bc_event;
enum charger_t usb_charger;
enum charger_t dc_charger;
struct regulator *otg5v_rdev;
u8 ac_in;
u8 usb_in;
u8 otg_in;
@ -589,28 +590,53 @@ static void rk818_cg_set_chrg_param(struct rk818_charger *cg,
static void rk818_cg_set_otg_state(struct rk818_charger *cg, int state)
{
int ret;
switch (state) {
case USB_OTG_POWER_ON:
if (cg->otg_in) {
CG_INFO("otg5v is on yet, ignore..\n");
} else {
cg->otg_in = 1;
if (IS_ERR(cg->otg5v_rdev)) {
CG_INFO("not get otg_switch regulator!\n");
return;
}
if (!regulator_is_enabled(cg->otg5v_rdev)) {
ret = regulator_enable(cg->otg5v_rdev);
if (ret) {
CG_INFO("enable otg5v failed:%d\n",
ret);
return;
}
}
disable_irq(cg->plugin_irq);
disable_irq(cg->plugout_irq);
rk818_reg_set_bits(cg, RK818_DCDC_EN_REG,
OTG_EN_MASK, OTG_EN_MASK);
CG_INFO("enable otg5v\n");
}
break;
case USB_OTG_POWER_OFF:
if (!cg->otg_in) {
CG_INFO("otg5v is off yet, ignore..\n");
} else {
cg->otg_in = 0;
if (IS_ERR(cg->otg5v_rdev)) {
CG_INFO("not get otg_switch regulator!\n");
return;
}
if (regulator_is_enabled(cg->otg5v_rdev)) {
ret = regulator_disable(cg->otg5v_rdev);
if (ret) {
CG_INFO("disable otg5v failed: %d\n",
ret);
return;
}
}
enable_irq(cg->plugin_irq);
enable_irq(cg->plugout_irq);
rk818_reg_clear_bits(cg, RK818_DCDC_EN_REG,
OTG_EN_MASK);
CG_INFO("disable otg5v\n");
}
break;
@ -1435,6 +1461,20 @@ static int rk818_cg_register_temp_notifier(struct rk818_charger *cg)
return 0;
}
static int rk818_cg_get_otg5v_regulator(struct rk818_charger *cg)
{
int ret;
/* not necessary */
cg->otg5v_rdev = devm_regulator_get(cg->dev, "otg_switch");
if (IS_ERR(cg->otg5v_rdev)) {
ret = PTR_ERR(cg->otg5v_rdev);
dev_warn(cg->dev, "failed to get otg regulator: %d\n", ret);
}
return 0;
}
#ifdef CONFIG_OF
static int rk818_cg_parse_dt(struct rk818_charger *cg)
{
@ -1571,6 +1611,7 @@ static int rk818_charger_probe(struct platform_device *pdev)
}
rk818_cg_init_ts2_detect(cg);
rk818_cg_get_otg5v_regulator(cg);
ret = rk818_cg_init_dc(cg);
if (ret) {