openwrtv4/target/linux/pistachio/patches-4.9/401-mtd-nor-support-mtd-name-from-device-tree.patch

From f32bc2aa01edcba2f2ed5db151cf183eac9ef919 Mon Sep 17 00:00:00 2001
From: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com>
Date: Sat, 25 Feb 2017 16:42:50 +0000
Subject: mtd: nor: support mtd name from device tree

Signed-off-by: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com>
---
 drivers/mtd/spi-nor/spi-nor.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -1541,6 +1541,7 @@ int spi_nor_scan(struct spi_nor *nor, co
 	struct device *dev = nor->dev;
 	struct mtd_info *mtd = &nor->mtd;
 	struct device_node *np = spi_nor_get_flash_node(nor);
+	const char __maybe_unused *of_mtd_name = NULL;
 	int ret;
 	int i;
 
@@ -1606,7 +1607,12 @@ int spi_nor_scan(struct spi_nor *nor, co
 		spi_nor_wait_till_ready(nor);
 	}
 
-	if (!mtd->name)
+#ifdef CONFIG_MTD_OF_PARTS
+	of_property_read_string(np, "linux,mtd-name", &of_mtd_name);
+#endif
+	if (of_mtd_name)
+		mtd->name = of_mtd_name;
+	else if (!mtd->name)
 		mtd->name = dev_name(dev);
 	mtd->priv = nor;
 	mtd->type = MTD_NORFLASH;