[PATCH v2] HID: i2c-hid: Enable touchpad wakeup from Suspend-to-Idle
DORMANTno replies
From: Kai-Heng Feng <hidden>
Date: 2020-05-18 12:24:54
Also in:
lkml
Subsystem:
hid core layer, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Linus Torvalds
Many laptops have the ability to be woken up from Suspend-to-Idle by touchpad. This is also the default behavior on other OSes. So let's enable the wakeup support if the system defaults to use Suspend-to-Idle. Signed-off-by: Kai-Heng Feng <redacted> --- v2: - Fix compile error when ACPI is not enabled. drivers/hid/i2c-hid/i2c-hid-core.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c
index 294c84e136d7..e6caef006cd3 100644
--- a/drivers/hid/i2c-hid/i2c-hid-core.c
+++ b/drivers/hid/i2c-hid/i2c-hid-core.c@@ -931,6 +931,14 @@ static void i2c_hid_acpi_fix_up_power(struct device *dev) acpi_device_fix_up_power(adev); } +static void i2c_hid_acpi_enable_wakeup(struct device *dev) +{ + if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) { + device_set_wakeup_capable(dev, true); + device_wakeup_enable(dev); + } +} + static const struct acpi_device_id i2c_hid_acpi_match[] = { {"ACPI0C50", 0 }, {"PNP0C50", 0 },
@@ -945,6 +953,8 @@ static inline int i2c_hid_acpi_pdata(struct i2c_client *client, } static inline void i2c_hid_acpi_fix_up_power(struct device *dev) {} + +static inline void i2c_hid_acpi_enable_wakeup(struct device *dev) {} #endif #ifdef CONFIG_OF
@@ -1072,6 +1082,8 @@ static int i2c_hid_probe(struct i2c_client *client, i2c_hid_acpi_fix_up_power(&client->dev); + i2c_hid_acpi_enable_wakeup(&client->dev); + device_enable_async_suspend(&client->dev); /* Make sure there is something at this address */
--
2.17.1