[PATCH] HID: i2c-hid: Allow ACPI systems to specify "post-power-on-delay-ms"
From: Rajat Jain <hidden>
Date: 2017-10-02 21:32:28
Also in:
lkml
Subsystem:
hid core layer, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Linus Torvalds
The property "post-power-on-delay-ms"" allows a platform to specify the delay needed after power-on, but only via device trees. Thus allow ACPI systems to also provide the same information. Signed-off-by: Rajat Jain <redacted> --- drivers/hid/i2c-hid/i2c-hid.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index 77396145d2d0..97405156315a 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c@@ -865,6 +865,7 @@ static int i2c_hid_acpi_pdata(struct i2c_client *client, union acpi_object *obj; struct acpi_device *adev; acpi_handle handle; + u32 val; handle = ACPI_HANDLE(&client->dev); if (!handle || acpi_bus_get_device(handle, &adev))
@@ -880,6 +881,10 @@ static int i2c_hid_acpi_pdata(struct i2c_client *client, pdata->hid_descriptor_address = obj->integer.value; ACPI_FREE(obj); + if (!device_property_read_u32(&client->dev, "post-power-on-delay-ms", + &val)) + pdata->post_power_delay_ms = val; + return 0; }
--
2.14.2.822.g60be5d43e6-goog