ASoC: wcd934x: Set micbias curr to higher value when micb is enabled

When micbias is enabled set curr to higher value for
vreg bob bypass and when it is disabled set it
to default value for sm6150.

CRs-Fixed: 2315478
Change-Id: I451506002f382e666d47bc83944bdc8dbbedcad8
Signed-off-by: Vatsal Bucha <vbucha@codeaurora.org>

asoc/codecs/wcd934x/wcd934x.c

@@ -68,6 +68,9 @@
 
 #define WCD934X_FORMATS_S16_LE (SNDRV_PCM_FMTBIT_S16_LE)
 
+#define MICB_LOAD_PROP "qcom,vreg-micb"
+#define MICB_LOAD_DEFAULT 30400
+
 /* Macros for packing register writes into a U32 */
 #define WCD934X_PACKED_REG_SIZE sizeof(u32)
 #define WCD934X_CODEC_UNPACK_ENTRY(packed, reg, mask, val) \
@@ -637,6 +640,9 @@ struct tavil_priv {
 	struct platform_device *pdev_child_devices
 		[WCD934X_CHILD_DEVICES_MAX];
 	int child_count;
+	struct regulator *micb_load;
+	int micb_load_low;
+	int micb_load_high;
 };
 
 static const struct tavil_reg_mask_val tavil_spkr_default[] = {
@@ -4882,6 +4888,9 @@ int tavil_micbias_control(struct snd_soc_codec *codec,
 	case MICB_ENABLE:
 		tavil->micb_ref[micb_index]++;
 		if (tavil->micb_ref[micb_index] == 1) {
+			if (tavil->micb_load)
+				regulator_set_load(tavil->micb_load,
+						   tavil->micb_load_high);
 			snd_soc_update_bits(codec, micb_reg, 0xC0, 0x40);
 			if (post_on_event && tavil->mbhc)
 				blocking_notifier_call_chain(
@@ -4912,6 +4921,9 @@ int tavil_micbias_control(struct snd_soc_codec *codec,
 						&tavil->mbhc->notifier,
 						post_off_event,
 						&tavil->mbhc->wcd_mbhc);
+			if (tavil->micb_load)
+				regulator_set_load(tavil->micb_load,
+						   tavil->micb_load_low);
 		}
 		if (is_dapm && post_dapm_off && tavil->mbhc)
 			blocking_notifier_call_chain(&tavil->mbhc->notifier,
@@ -10947,11 +10959,12 @@ static const struct snd_event_ops wcd934x_ssr_ops = {
 
 static int tavil_probe(struct platform_device *pdev)
 {
-	int ret = 0;
+	int ret = 0, len = 0;
 	struct tavil_priv *tavil;
 	struct clk *wcd_ext_clk;
 	struct wcd9xxx_resmgr_v2 *resmgr;
 	struct wcd9xxx_power_region *cdc_pwr;
+	const __be32 *micb_prop;
 
 	tavil = devm_kzalloc(&pdev->dev, sizeof(struct tavil_priv),
 			    GFP_KERNEL);
@@ -11078,6 +11091,26 @@ static int tavil_probe(struct platform_device *pdev)
 		ret = 0;
 	}
 
+	tavil->micb_load = NULL;
+
+	if (of_get_property(tavil->wcd9xxx->dev->of_node,
+			    "qcom,vreg-micb-supply", NULL)) {
+		micb_prop = of_get_property(tavil->wcd9xxx->dev->of_node,
+					    "qcom,cdc-vdd-mic-bias-current",
+					    &len);
+		if (!micb_prop || (len != (2 * sizeof(__be32)))) {
+			tavil->micb_load_low = MICB_LOAD_DEFAULT;
+			tavil->micb_load_high = MICB_LOAD_DEFAULT;
+		} else {
+			tavil->micb_load_low = be32_to_cpup(&micb_prop[0]);
+			tavil->micb_load_high = be32_to_cpup(&micb_prop[1]);
+		}
+		tavil->micb_load = regulator_get(&pdev->dev, MICB_LOAD_PROP);
+		if (IS_ERR(tavil->micb_load))
+			dev_dbg(tavil->dev, "%s micb load get failed\n",
+				__func__);
+	}
+
 	return ret;
 
 err_cdc_reg:
@@ -11119,6 +11152,9 @@ static int tavil_remove(struct platform_device *pdev)
 				count < WCD934X_CHILD_DEVICES_MAX; count++)
 		platform_device_unregister(tavil->pdev_child_devices[count]);
 
+	if (tavil->micb_load)
+		regulator_put(tavil->micb_load);
+
 	mutex_destroy(&tavil->micb_lock);
 	mutex_destroy(&tavil->svs_mutex);
 	mutex_destroy(&tavil->codec_mutex);