v4.19.13 snapshot.
diff --git a/sound/soc/codecs/wm_hubs.h b/sound/soc/codecs/wm_hubs.h
new file mode 100644
index 0000000..ee339ad
--- /dev/null
+++ b/sound/soc/codecs/wm_hubs.h
@@ -0,0 +1,74 @@
+/*
+ * wm_hubs.h  --  WM899x common code
+ *
+ * Copyright 2009 Wolfson Microelectronics plc
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ *
+ * 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 _WM_HUBS_H
+#define _WM_HUBS_H
+
+#include <linux/completion.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <sound/control.h>
+
+struct snd_soc_component;
+
+extern const unsigned int wm_hubs_spkmix_tlv[];
+
+/* This *must* be the first element of the codec->private_data struct */
+struct wm_hubs_data {
+	int dcs_codes_l;
+	int dcs_codes_r;
+	int dcs_readback_mode;
+	int hp_startup_mode;
+	int series_startup;
+	int no_series_update;
+
+	bool no_cache_dac_hp_direct;
+	struct list_head dcs_cache;
+	bool (*check_class_w_digital)(struct snd_soc_component *);
+
+	int micb1_delay;
+	int micb2_delay;
+
+	bool lineout1_se;
+	bool lineout1n_ena;
+	bool lineout1p_ena;
+
+	bool lineout2_se;
+	bool lineout2n_ena;
+	bool lineout2p_ena;
+
+	bool dcs_done_irq;
+	struct completion dcs_done;
+
+	struct snd_soc_component *component;
+};
+
+extern int wm_hubs_add_analogue_controls(struct snd_soc_component *);
+extern int wm_hubs_add_analogue_routes(struct snd_soc_component *, int, int);
+extern int wm_hubs_handle_analogue_pdata(struct snd_soc_component *,
+					 int lineout1_diff, int lineout2_diff,
+					 int lineout1fb, int lineout2fb,
+					 int jd_scthr, int jd_thr,
+					 int micbias1_dly, int micbias2_dly,
+					 int micbias1_lvl, int micbias2_lvl);
+
+extern irqreturn_t wm_hubs_dcs_done(int irq, void *data);
+extern void wm_hubs_vmid_ena(struct snd_soc_component *component);
+extern void wm_hubs_set_bias_level(struct snd_soc_component *component,
+				   enum snd_soc_bias_level level);
+extern void wm_hubs_update_class_w(struct snd_soc_component *component);
+
+extern const struct snd_kcontrol_new wm_hubs_hpl_mux;
+extern const struct snd_kcontrol_new wm_hubs_hpr_mux;
+
+#endif