1 files changed, 5 insertions, 11 deletions

diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c
index cb3a3106bd4f..88e544151f6f 100644
--- a/drivers/spi/spi-mpc512x-psc.c
+++ b/drivers/spi/spi-mpc512x-psc.c
@@ -522,17 +522,11 @@ static int mpc512x_psc_spi_of_probe(struct platform_device *op)
         regaddr64 = of_translate_address(op->dev.of_node, regaddr_p);
 
         /* get PSC id (0..11, used by port_config) */
-        if (op->dev.platform_data == NULL) {
-                const u32 *psc_nump;
-
-                psc_nump = of_get_property(op->dev.of_node, "cell-index", NULL);
-                if (!psc_nump || *psc_nump > 11) {
-                        dev_err(&op->dev, "mpc512x_psc_spi: Device node %s "
-                                "has invalid cell-index property\n",
-                                op->dev.of_node->full_name);
-                        return -EINVAL;
-                }
-                id = *psc_nump;
+        id = of_alias_get_id(op->dev.of_node, "spi");
+        if (id < 0) {
+                dev_err(&op->dev, "no alias id for %s\n",
+                        op->dev.of_node->full_name);
+                return id;
         }
 
         return mpc512x_psc_spi_do_probe(&op->dev, (u32) regaddr64, (u32) size64,