diff --git a/sound/soc/codecs/tas2783-sdw.c b/sound/soc/codecs/tas2783-sdw.c
index db58c50e8a83..f96a53a08175 100644
--- a/sound/soc/codecs/tas2783-sdw.c
+++ b/sound/soc/codecs/tas2783-sdw.c
@@ -1216,7 +1216,6 @@ static s32 tas_update_status(struct sdw_slave *slave,
 {
 	struct tas2783_prv *tas_dev = dev_get_drvdata(&slave->dev);
 	struct device *dev = &slave->dev;
-	int ret;
 
 	dev_dbg(dev, "Peripheral status = %s",
 		status == SDW_SLAVE_UNATTACHED ? "unattached" :
@@ -1232,14 +1231,23 @@ static s32 tas_update_status(struct sdw_slave *slave,
 	if (tas_dev->hw_init || tas_dev->status != SDW_SLAVE_ATTACHED)
 		return 0;
 
-	/* updated the cache data to device */
 	regcache_cache_only(tas_dev->regmap, false);
-	ret = regcache_sync(tas_dev->regmap);
-	if (ret) {
-		regcache_cache_only(tas_dev->regmap, true);
-		regcache_mark_dirty(tas_dev->regmap);
-		return ret;
-	}
+
+	/*
+	 * The device is attaching uninitialized: either this is the first
+	 * attach, or it lost power (and with it all register and DSP state)
+	 * while the controller was power-gated during system suspend. The
+	 * cache still holds the pre-suspend values, and tas_io_init() below
+	 * resets the device via TAS2783_SW_RESET anyway, so syncing it back
+	 * is both useless and harmful: later read-modify-write updates would
+	 * compare against stale data and skip the hardware write.
+	 *
+	 * Drop the cache instead, so that subsequent accesses see the real
+	 * hardware state. Syncing after the reset is not an option either:
+	 * the cache accepts registers for which tas2783_sdca_mbq_size()
+	 * returns 0, and writing those back fails with -EINVAL.
+	 */
+	regcache_drop_region(tas_dev->regmap, 0, UINT_MAX);
 
 	/* perform I/O transfers required for Slave initialization */
 	return tas_io_init(&slave->dev, slave);