Revert "ASoC: swr-haptics: Remove disable regulator during system suspend"

This reverts commit c3ca3bfee4.

Change-Id: I551700579adbdde84b65d1d93608f1cb7d6e4a05

asoc/codecs/swr-haptics.c

@@ -456,33 +456,48 @@ static int swr_haptics_device_down(struct swr_device *sdev)
 static int swr_haptics_suspend(struct device *dev)
 {
 	struct swr_haptics_dev *swr_hap;
-	int rc = 0;
+	int rc;
 
 	swr_hap = swr_get_dev_data(to_swr_device(dev));
 	if (!swr_hap) {
 		dev_err(dev, "%s: no data for swr_hap\n", __func__);
 		return -ENODEV;
 	}
-	trace_printk("%s: suspended\n", __func__);
 
-	return rc;
+	/* Put SWR slave into reset */
+	rc = regulator_disable(swr_hap->vdd);
+	if (rc < 0) {
+		dev_err(swr_hap->dev, "%s: disable swr-slave failed, rc=%d\n",
+				__func__, rc);
+		return rc;
+	}
+
+	return 0;
 }
 
 static int swr_haptics_resume(struct device *dev)
 {
 	struct swr_haptics_dev *swr_hap;
-	int rc = 0;
+	int rc;
 
 	swr_hap = swr_get_dev_data(to_swr_device(dev));
 	if (!swr_hap) {
 		dev_err(dev, "%s: no data for swr_hap\n", __func__);
 		return -ENODEV;
 	}
-	trace_printk("%s: resumed\n", __func__);
 
-	return rc;
+	/* Take SWR slave out of reset */
+	rc = regulator_enable(swr_hap->vdd);
+	if (rc < 0) {
+		dev_err(swr_hap->dev, "%s: enable swr-slave failed, rc=%d\n",
+				__func__, rc);
+		return rc;
+	}
+
+	return 0;
 }
 
+
 static const struct of_device_id swr_haptics_match_table[] = {
 	{ .compatible = "qcom,swr-haptics", },
 	{ .compatible = "qcom,pm8350b-swr-haptics", },