shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-05 18:41:58 +09:00
Code Issues Packages Projects Releases Wiki Activity

usb: typec: tcpci_husb311: Support to enable wakeup irq via dts

Browse Source 
The husb311 driver disable irq wakeup if vbus is on
(e.g connect with an U Disk), it aimed to avoid wakeup
system from deep sleep immediately by husb311 irq if
the vbus was powered off during deep sleep.

However, some platforms can keep vbus on during deep
sleep, and it may want to support the husb311 irq to
wakeup system from deep sleep, so this patch adds an
option property "wakeup-source" for this scenario.

Fixes: a6a4762e0c ("usb: typec: tcpci_husb311: Refactor irq wakeup")
Signed-off-by: William Wu <william.wu@rock-chips.com>
Change-Id: I3a862b3b3e99fe12c4dbb87e09a0910b4602b92a
This commit is contained in:
William Wu
2024-06-07 09:13:13 +08:00
committed by Tao Huang
parent 57fd1a671e
commit 3191b79344
1 changed files with 4 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/usb/typec/tcpm/tcpci_husb311.c
View File

@@ -36,6 +36,7 @@ struct husb311_chip {
bool vbus_on;
bool charge_on;
bool suspended;
bool wakeup;
};
static int husb311_read8(struct husb311_chip *chip, unsigned int reg, u8 *val)
@@ -295,6 +296,7 @@ static int husb311_probe(struct i2c_client *client,
return ret;
}
chip->wakeup = device_property_read_bool(chip->dev, "wakeup-source");
device_init_wakeup(chip->dev, true);
return 0;
@@ -324,7 +326,7 @@ static int husb311_pm_suspend(struct device *dev)
struct husb311_chip *chip = dev->driver_data;
struct i2c_client *client = to_i2c_client(dev);
if (device_may_wakeup(dev) && !chip->vbus_on)
if (device_may_wakeup(dev) && (!chip->vbus_on || chip->wakeup))
enable_irq_wake(client->irq);
else
disable_irq(client->irq);
@@ -344,7 +346,7 @@ static int husb311_pm_resume(struct device *dev)
int ret = 0;
u8 filter;
if (device_may_wakeup(dev) && !chip->vbus_on)
if (device_may_wakeup(dev) && (!chip->vbus_on || chip->wakeup))
disable_irq_wake(client->irq);
else
enable_irq(client->irq);