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

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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(+)
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index ad19139..9f7b35a 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -1097,6 +1097,10 @@ static int m25p_probe(struct spi_device *spi)
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
@@ -1169,6 +1173,8 @@ static int m25p_probe(struct spi_device *spi)
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);
--
1.7.10.4