v4.19.13 snapshot.
diff --git a/include/sound/wm9090.h b/include/sound/wm9090.h
new file mode 100644
index 0000000..3718928
--- /dev/null
+++ b/include/sound/wm9090.h
@@ -0,0 +1,28 @@
+/*
+ * linux/sound/wm9090.h -- Platform data for WM9090
+ *
+ * Copyright 2009, 2010 Wolfson Microelectronics. PLC.
+ *
+ * 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.
+ */
+
+#ifndef __LINUX_SND_WM9090_H
+#define __LINUX_SND_WM9090_H
+
+struct wm9090_platform_data {
+ /* Line inputs 1 & 2 can optionally be differential */
+ unsigned int lin1_diff:1;
+ unsigned int lin2_diff:1;
+
+ /* AGC configuration. This is intended to protect the speaker
+ * against overdriving and will therefore depend on the
+ * hardware setup with incorrect runtime configuration
+ * potentially causing hardware damage.
+ */
+ unsigned int agc_ena:1;
+ u16 agc[3];
+};
+
+#endif