mtd: name the mtd device with an optional label property
authorCédric Le Goater <clg@kaod.org>
Thu, 9 Feb 2017 09:21:07 +0000 (10:21 +0100)
committerBrian Norris <computersforpeace@gmail.com>
Fri, 10 Feb 2017 18:16:34 +0000 (10:16 -0800)
This can be used to easily identify a specific chip on a system with
multiple chips.

Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
include/linux/mtd/mtd.h

index 5bb42c6dacdcd9dfb64373205f9b8b9a963e5bce..eebdc63cf6af94a5ea9a5c4703c416f87e0079a8 100644 (file)
@@ -24,6 +24,7 @@
 #include <linux/uio.h>
 #include <linux/notifier.h>
 #include <linux/device.h>
+#include <linux/of.h>
 
 #include <mtd/mtd-abi.h>
 
@@ -386,6 +387,8 @@ static inline void mtd_set_of_node(struct mtd_info *mtd,
                                   struct device_node *np)
 {
        mtd->dev.of_node = np;
+       if (!mtd->name)
+               of_property_read_string(np, "label", &mtd->name);
 }
 
 static inline struct device_node *mtd_get_of_node(struct mtd_info *mtd)