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-rw-r--r--Documentation/devicetree/bindings/input/hid-over-i2c.txt2
-rw-r--r--drivers/hid/i2c-hid/i2c-hid.c18
2 files changed, 14 insertions, 6 deletions
diff --git a/Documentation/devicetree/bindings/input/hid-over-i2c.txt b/Documentation/devicetree/bindings/input/hid-over-i2c.txt
index 28e8bd8b7d64..4d3da9d91de4 100644
--- a/Documentation/devicetree/bindings/input/hid-over-i2c.txt
+++ b/Documentation/devicetree/bindings/input/hid-over-i2c.txt
@@ -31,7 +31,7 @@ device-specific compatible properties, which should be used in addition to the
- vdd-supply: phandle of the regulator that provides the supply voltage.
- post-power-on-delay-ms: time required by the device after enabling its regulators
- before it is ready for communication. Must be used with 'vdd-supply'.
+ or powering it on, before it is ready for communication.
Example:
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index e054ee43c1e2..7230243b94d3 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -934,11 +934,6 @@ static int i2c_hid_of_probe(struct i2c_client *client,
}
pdata->hid_descriptor_address = val;
- ret = of_property_read_u32(dev->of_node, "post-power-on-delay-ms",
- &val);
- if (!ret)
- pdata->post_power_delay_ms = val;
-
return 0;
}
@@ -955,6 +950,16 @@ static inline int i2c_hid_of_probe(struct i2c_client *client,
}
#endif
+static void i2c_hid_fwnode_probe(struct i2c_client *client,
+ struct i2c_hid_platform_data *pdata)
+{
+ u32 val;
+
+ if (!device_property_read_u32(&client->dev, "post-power-on-delay-ms",
+ &val))
+ pdata->post_power_delay_ms = val;
+}
+
static int i2c_hid_probe(struct i2c_client *client,
const struct i2c_device_id *dev_id)
{
@@ -998,6 +1003,9 @@ static int i2c_hid_probe(struct i2c_client *client,
ihid->pdata = *platform_data;
}
+ /* Parse platform agnostic common properties from ACPI / device tree */
+ i2c_hid_fwnode_probe(client, &ihid->pdata);
+
ihid->pdata.supply = devm_regulator_get(&client->dev, "vdd");
if (IS_ERR(ihid->pdata.supply)) {
ret = PTR_ERR(ihid->pdata.supply);