diff --git a/sound/ppc/keywest.c b/sound/ppc/keywest.c
index d7627ba..6120a06 100644
--- a/sound/ppc/keywest.c
+++ b/sound/ppc/keywest.c
@@ -31,10 +31,15 @@
  */
 static struct pmac_keywest *keywest_ctx;
 
+static bool keywest_probed;
 
 static int keywest_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
+	keywest_probed = true;
+	/* If instantiated via i2c-powermac, we still need to set the client */
+	if (!keywest_ctx->client)
+		keywest_ctx->client = client;
 	i2c_set_clientdata(client, keywest_ctx);
 	return 0;
 }
@@ -92,7 +97,8 @@
 
 
 static const struct i2c_device_id keywest_i2c_id[] = {
-	{ "keywest", 0 },
+	{ "MAC,tas3004", 0 },		/* instantiated by i2c-powermac */
+	{ "keywest", 0 },		/* instantiated by us if needed */
 	{ }
 };
 
@@ -149,8 +155,13 @@
 		return err;
 	}
 
+	/* There was already a device from i2c-powermac. Great, let's return */
+	if (keywest_probed)
+		return 0;
+
 	/* We assume Macs have consecutive I2C bus numbers starting at 0 */
 	while (adap) {
+		/* Scan for devices to be bound to */
 		err = keywest_attach_adapter(adap);
 		if (!err)
 			return 0;