firmware: imx: scu: use soc name for soc_id

Same as soc-imx8m and soc-imx driver, use soc name for soc_id which is
user friendly.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

drivers/firmware/imx/imx-scu-soc.c

@@ -78,6 +78,22 @@ static int imx_scu_soc_id(void)
 	return msg.data.resp.id;
 }
 
+static const char *imx_scu_soc_name(u32 id)
+{
+	switch (id) {
+	case 0x1:
+		return "i.MX8QM";
+	case 0x2:
+		return "i.MX8QXP";
+	case 0xe:
+		return "i.MX8DXL";
+	default:
+		break;
+	}
+
+	return "NULL";
+}
+
 int imx_scu_soc_init(struct device *dev)
 {
 	struct soc_device_attribute *soc_dev_attr;
@@ -113,9 +129,7 @@ int imx_scu_soc_init(struct device *dev)
 
 	/* format soc_id value passed from SCU firmware */
 	val = id & 0x1f;
-	soc_dev_attr->soc_id = devm_kasprintf(dev, GFP_KERNEL, "0x%x", val);
-	if (!soc_dev_attr->soc_id)
-		return -ENOMEM;
+	soc_dev_attr->soc_id = imx_scu_soc_name(val);
 
 	/* format revision value passed from SCU firmware */
 	val = (id >> 5) & 0xf;