asoc: bolero: add support to enable VA MCLK MUX select on Kona

VA macro is currently lacking capability to dynamically select
MCLK on Kona. Add support in VA macro driver to read MUX select
property from DT to enable dynamic MCLK MUX select.

Change-Id: I46d0b760119a2d8c2ed754ae9cb43ba717fa300b
Signed-off-by: Xiaoyu Ye <benyxy@codeaurora.org>

asoc/codecs/bolero/va-macro.c

@@ -138,6 +138,7 @@ static int va_macro_mclk_enable(struct va_macro_priv *va_priv,
 {
 	struct regmap *regmap = dev_get_regmap(va_priv->dev->parent, NULL);
 	int ret = 0;
+	u16 mclk_mux_sel = MCLK_MUX0;
 
 	if (regmap == NULL) {
 		dev_err(va_priv->dev, "%s: regmap is NULL\n", __func__);
@@ -148,10 +149,21 @@ static int va_macro_mclk_enable(struct va_macro_priv *va_priv,
 		__func__, mclk_enable, dapm, va_priv->va_mclk_users);
 
 	mutex_lock(&va_priv->mclk_lock);
+	if (of_property_read_u16(va_priv->dev->of_node,
+				 "qcom,va-clk-mux-select", &mclk_mux_sel))
+		dev_dbg(va_priv->dev,
+			"%s: could not find %s entry in dt, use default\n",
+			__func__, "qcom,va-clk-mux-select");
+	if (mclk_mux_sel != MCLK_MUX0 && mclk_mux_sel != MCLK_MUX1) {
+		dev_err(va_priv->dev, "%s: mclk_mux_sel: %d is invalid\n",
+			__func__, mclk_mux_sel);
+		return -EINVAL;
+	}
+
 	if (mclk_enable) {
 		if (va_priv->va_mclk_users == 0) {
 			ret = bolero_request_clock(va_priv->dev,
-						VA_MACRO, MCLK_MUX0, true);
+						VA_MACRO, mclk_mux_sel, true);
 			if (ret < 0) {
 				dev_err(va_priv->dev,
 					"%s: va request clock en failed\n",
@@ -192,7 +204,7 @@ static int va_macro_mclk_enable(struct va_macro_priv *va_priv,
 				BOLERO_CDC_VA_CLK_RST_CTRL_MCLK_CONTROL,
 				0x01, 0x00);
 			bolero_request_clock(va_priv->dev,
-					VA_MACRO, MCLK_MUX0, false);
+					VA_MACRO, mclk_mux_sel, false);
 		}
 	}
 exit: