v4.19.13 snapshot.
diff --git a/include/sound/cs42l52.h b/include/sound/cs42l52.h
new file mode 100644
index 0000000..bbabf84
--- /dev/null
+++ b/include/sound/cs42l52.h
@@ -0,0 +1,32 @@
+/*
+ * linux/sound/cs42l52.h -- Platform data for CS42L52
+ *
+ * Copyright (c) 2012 Cirrus Logic Inc.
+ *
+ * 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 __CS42L52_H
+#define __CS42L52_H
+
+struct cs42l52_platform_data {
+
+ /* MICBIAS Level. Check datasheet Pg48 */
+ unsigned int micbias_lvl;
+
+ /* MICA mode selection Differential or Single-ended */
+ bool mica_diff_cfg;
+
+ /* MICB mode selection Differential or Single-ended */
+ bool micb_diff_cfg;
+
+ /* Charge Pump Freq. Check datasheet Pg73 */
+ unsigned int chgfreq;
+
+ /* Reset GPIO */
+ unsigned int reset_gpio;
+};
+
+#endif /* __CS42L52_H */