openwrt/target/linux/lantiq/patches-3.14/0022-MTD-m25p80-allow-loading-mtd-name-from-OF.patch

From 4400e1f593ea40a51912128adb4f53d59e62cad8 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Wed, 10 Sep 2014 22:40:18 +0200
Subject: [PATCH 22/36] MTD: m25p80: allow loading mtd name from OF

In accordance with the physmap flash we should honour the linux,mtd-name
property when deciding what name the mtd device has.

Signed-off-by: Thomas Langer <thomas.langer@lantiq.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
---
 drivers/mtd/devices/m25p80.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -1105,6 +1105,10 @@ static int m25p_probe(struct spi_device
 	struct mtd_part_parser_data	ppdata;
 	struct device_node *np = spi->dev.of_node;
 	int ret;
+	const char __maybe_unused	*of_mtd_name = NULL;
+
+	of_property_read_string(spi->dev.of_node,
+		"linux,mtd-name", &of_mtd_name);
 
 	/* Platform data helps sort out which chip type we have, as
 	 * well as how this board partitions it.  If we don't have
@@ -1177,6 +1181,8 @@ static int m25p_probe(struct spi_device
 
 	if (data && data->name)
 		flash->mtd.name = data->name;
+	else if (of_mtd_name)
+		flash->mtd.name = of_mtd_name;
 	else
 		flash->mtd.name = dev_name(&spi->dev);