ASoC: Add driver support for lpass digital codec

Add driver support to enable lpass digital codec for
audio playback and capture usecases.

Change-Id: I3d31d31f340db79334700e8fd495f40479e0ec6c
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>

asoc/codecs/lpass-cdc/lpass-cdc-wsa-macro.h

@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.
+ */
+#ifndef LPASS_CDC_WSA_MACRO_H
+#define LPASS_CDC_WSA_MACRO_H
+
+/*
+ * Selects compander and smart boost settings
+ * for a given speaker mode
+ */
+enum {
+	LPASS_CDC_WSA_MACRO_SPKR_MODE_DEFAULT,
+	LPASS_CDC_WSA_MACRO_SPKR_MODE_1, /* COMP Gain = 12dB, Smartboost Max = 5.5V */
+};
+
+/* Rx path gain offsets */
+enum {
+	LPASS_CDC_WSA_MACRO_GAIN_OFFSET_M1P5_DB,
+	LPASS_CDC_WSA_MACRO_GAIN_OFFSET_0_DB,
+};
+
+
+#if IS_ENABLED(CONFIG_WSA_MACRO)
+extern int lpass_cdc_wsa_macro_set_spkr_mode(struct snd_soc_component *component,
+				   int mode);
+extern int lpass_cdc_wsa_macro_set_spkr_gain_offset(struct snd_soc_component *component,
+					  int offset);
+#else /* CONFIG_WSA_MACRO */
+static inline int lpass_cdc_wsa_macro_set_spkr_mode(struct snd_soc_component *component,
+					  int mode)
+{
+	return 0;
+}
+static inline int lpass_cdc_wsa_macro_set_spkr_gain_offset(
+				struct snd_soc_component *component,
+				int offset)
+{
+	return 0;
+}
+#endif /* CONFIG_WSA_MACRO */
+#endif