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mfd: rk806: Enable vdc irq wakeup system

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This function is mainly used for ultra suspend mode, which wakes up the
system through the VDC interrupt of the PMIC by plugging in the charger.

Signed-off-by: shengfei Xu <xsf@rock-chips.com>
Change-Id: I9c5ab1aeb067f4d0290f9a153675c3b4b5887920
This commit is contained in:
shengfei Xu 2024-04-08 11:25:40 +08:00 • committed by Tao Huang
commit 79a7e75223
2 changed files with 58 additions and 0 deletions
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57
drivers/mfd/rk806-core.c
View file

@ -614,6 +614,58 @@ static int rk806_low_power_irqs(struct rk806 *rk806)
return 0;
}
static irqreturn_t rk806_vdc_irq(int irq, void *data)
{
struct rk806 *rk806 = data;
pm_wakeup_dev_event(rk806->dev, 2000, false);
return IRQ_HANDLED;
}
static void rk806_vdc_irqs_init(struct rk806 *rk806)
{
int ret, vdc_irq_fall, vdc_irq_rise;
if (!rk806->pdata->vdc_wakeup_enable)
return;
vdc_irq_rise = regmap_irq_get_virq(rk806->irq_data, RK806_IRQ_VDC_RISE);
if (vdc_irq_rise < 0) {
dev_err(rk806->dev, "RK806: IRQ_VDC_RISE get failed!\n");
return;
}
ret = devm_request_threaded_irq(rk806->dev, vdc_irq_rise,
NULL,
rk806_vdc_irq,
IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
"rk806_vdc_rise", rk806);
if (ret) {
dev_err(rk806->dev, "rk806: vdc_irq_rise request failed!\n");
return;
}
enable_irq_wake(vdc_irq_rise);
vdc_irq_fall = regmap_irq_get_virq(rk806->irq_data, RK806_IRQ_VDC_FALL);
if (vdc_irq_fall < 0) {
dev_err(rk806->dev, "RK806: IRQ_VDC_FALL get failed!\n");
return;
}
ret = devm_request_threaded_irq(rk806->dev, vdc_irq_fall,
NULL,
rk806_vdc_irq,
IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
"rk806_vdc_fall", rk806);
if (ret) {
dev_err(rk806->dev, "rk806: vdc_irq_fall request failed!\n");
return;
}
enable_irq_wake(vdc_irq_fall);
device_init_wakeup(rk806->dev, true);
}
static int rk806_parse_dt(struct rk806 *rk806)
{
struct rk806_platform_data *pdata;
@ -627,6 +679,7 @@ static int rk806_parse_dt(struct rk806 *rk806)
pdata->shutdown_temperture_threshold = 160;
pdata->hotdie_temperture_threshold = 115;
pdata->force_shutdown_enable = 1;
pdata->vdc_wakeup_enable = 0;
ret = device_property_read_u32(dev,
"low_voltage_threshold",
@ -678,6 +731,9 @@ static int rk806_parse_dt(struct rk806 *rk806)
if (device_property_read_bool(dev, "pwron-on-time-500ms"))
rk806_field_write(rk806, PWRON_ON_TIME, 0x00);
if (device_property_read_bool(dev, "vdc-wakeup-enable"))
pdata->vdc_wakeup_enable = 1;
return 0;
}
@ -706,6 +762,7 @@ static int rk806_init(struct rk806 *rk806)
rk806_field_write(rk806, ENB2_2M, 0x01);
rk806_low_power_irqs(rk806);
rk806_vdc_irqs_init(rk806);
return 0;
}

1
include/linux/mfd/rk806.h
View file

@ -491,6 +491,7 @@ struct rk806_platform_data {
int force_shutdown_enable;
int shutdown_temperture_threshold;
int hotdie_temperture_threshold;
int vdc_wakeup_enable;
};
struct rk806_pin_info {