Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 43 insertions, 0 deletions

diff --git a/drivers/iio/iio_core_trigger.h b/drivers/iio/iio_core_trigger.h
new file mode 100644
index 000000000..1fdb1e4ea
--- /dev/null
+++ b/drivers/iio/iio_core_trigger.h
@@ -0,0 +1,43 @@
+
+/* The industrial I/O core, trigger consumer handling functions
+ *
+ * Copyright (c) 2008 Jonathan Cameron
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifdef CONFIG_IIO_TRIGGER
+/**
+ * iio_device_register_trigger_consumer() - set up an iio_dev to use triggers
+ * @indio_dev: iio_dev associated with the device that will consume the trigger
+ **/
+void iio_device_register_trigger_consumer(struct iio_dev *indio_dev);
+
+/**
+ * iio_device_unregister_trigger_consumer() - reverse the registration process
+ * @indio_dev: iio_dev associated with the device that consumed the trigger
+ **/
+void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev);
+
+#else
+
+/**
+ * iio_device_register_trigger_consumer() - set up an iio_dev to use triggers
+ * @indio_dev: iio_dev associated with the device that will consume the trigger
+ **/
+static int iio_device_register_trigger_consumer(struct iio_dev *indio_dev)
+{
+	return 0;
+}
+
+/**
+ * iio_device_unregister_trigger_consumer() - reverse the registration process
+ * @indio_dev: iio_dev associated with the device that consumed the trigger
+ **/
+static void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev)
+{
+}
+
+#endif /* CONFIG_TRIGGER_CONSUMER */