[PATCH] HID: i2c-hid: Allow ACPI systems to specify "post-power-on-delay-ms"

[Rajat Jain]

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 <rajatja@xxxxxxxxxx>
---
 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