diff --git a/drivers/spi/tegra20_slink.c b/drivers/spi/tegra20_slink.c
index 4cbde7b..f242574 100644
--- a/drivers/spi/tegra20_slink.c
+++ b/drivers/spi/tegra20_slink.c
@@ -97,7 +97,7 @@
 	int node = dev_of_offset(bus);
 
 	plat->base = devfdt_get_addr(bus);
-	plat->periph_id = clock_decode_periph_id(blob, node);
+	plat->periph_id = clock_decode_periph_id(bus);
 
 	if (plat->periph_id == PERIPH_ID_NONE) {
 		debug("%s: could not decode periph id %d\n", __func__,