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path: root/drivers/i2c/i2c-core-acpi.c
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Diffstat (limited to 'drivers/i2c/i2c-core-acpi.c')
-rw-r--r--drivers/i2c/i2c-core-acpi.c19
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
index 4842ec3a5451..a9126b3cda61 100644
--- a/drivers/i2c/i2c-core-acpi.c
+++ b/drivers/i2c/i2c-core-acpi.c
@@ -230,6 +230,16 @@ void i2c_acpi_register_devices(struct i2c_adapter *adap)
dev_warn(&adap->dev, "failed to enumerate I2C slaves\n");
}
+const struct acpi_device_id *
+i2c_acpi_match_device(const struct acpi_device_id *matches,
+ struct i2c_client *client)
+{
+ if (!(client && matches))
+ return NULL;
+
+ return acpi_match_device(matches, &client->dev);
+}
+
static acpi_status i2c_acpi_lookup_speed(acpi_handle handle, u32 level,
void *data, void **return_value)
{
@@ -289,7 +299,7 @@ u32 i2c_acpi_find_bus_speed(struct device *dev)
}
EXPORT_SYMBOL_GPL(i2c_acpi_find_bus_speed);
-static int i2c_acpi_match_adapter(struct device *dev, void *data)
+static int i2c_acpi_find_match_adapter(struct device *dev, void *data)
{
struct i2c_adapter *adapter = i2c_verify_adapter(dev);
@@ -299,7 +309,7 @@ static int i2c_acpi_match_adapter(struct device *dev, void *data)
return ACPI_HANDLE(dev) == (acpi_handle)data;
}
-static int i2c_acpi_match_device(struct device *dev, void *data)
+static int i2c_acpi_find_match_device(struct device *dev, void *data)
{
return ACPI_COMPANION(dev) == data;
}
@@ -309,7 +319,7 @@ static struct i2c_adapter *i2c_acpi_find_adapter_by_handle(acpi_handle handle)
struct device *dev;
dev = bus_find_device(&i2c_bus_type, NULL, handle,
- i2c_acpi_match_adapter);
+ i2c_acpi_find_match_adapter);
return dev ? i2c_verify_adapter(dev) : NULL;
}
@@ -317,7 +327,8 @@ static struct i2c_client *i2c_acpi_find_client_by_adev(struct acpi_device *adev)
{
struct device *dev;
- dev = bus_find_device(&i2c_bus_type, NULL, adev, i2c_acpi_match_device);
+ dev = bus_find_device(&i2c_bus_type, NULL, adev,
+ i2c_acpi_find_match_device);
return dev ? i2c_verify_client(dev) : NULL;
}