Openwrt/target/linux/lantiq/patches-4.4/0022-MTD-m25p80-allow-loading-mtd-name-from-OF.patch
Felix Fietkau f577cb25c0 lantiq: Add support for linux 4.4
The following patches were dropped because they are already applied
upstream:
- 0038-MIPS-lantiq-fpi-on-ar9.patch
- 0039-MIPS-lantiq-initialize-usb-on-boot.patch
- 0042-USB-DWC2-big-endian-support.patch
- 0043-gpio-stp-xway-fix-phy-mask.patch

All other patches were simply refreshed, except the following:
- 0001-MIPS-lantiq-add-pcie-driver.patch
  Changes to arch/mips/lantiq/xway/sysctrl.c (these changes disabled
  some PMU gates for the vrx200 / VR9 SoCs) were removed since the
  upstream kernel disables unused PMU gates automatically (since
  95135bfa7ead1becc2879230f72583dde2b71a0c
  "MIPS: Lantiq: Deactivate most of the devices by default").
- 0025-NET-MIPS-lantiq-adds-xrx200-net.patch
  Since OpenWrt commit 55ba20afcc2fe785146316e5be2c2473cb329885 drivers
  should use of_get_mac_address(). of_get_mac_address_mtd is not
  available for drivers anymore since it's called automatically within
  of_get_mac_address().
- 0028-NET-lantiq-various-etop-fixes.patch
  Same changes as in 0025-NET-MIPS-lantiq-adds-xrx200-net.patch

While refreshing the kernel configuration SPI support had to be moved to
config-4.4 because otherwise M25P80 was disabled.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

SVN-Revision: 48307
2016-01-18 11:40:19 +00:00

45 lines
1.4 KiB
Diff

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
@@ -19,6 +19,7 @@
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/device.h>
+#include <linux/of.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
@@ -182,6 +183,10 @@ static int m25p_probe(struct spi_device
enum read_mode mode = SPI_NOR_NORMAL;
char *flash_name = NULL;
int ret;
+ const char __maybe_unused *of_mtd_name = NULL;
+
+ of_property_read_string(spi->dev.of_node,
+ "linux,mtd-name", &of_mtd_name);
data = dev_get_platdata(&spi->dev);
@@ -212,6 +217,8 @@ static int m25p_probe(struct spi_device
if (data && data->name)
nor->mtd.name = data->name;
+ else if (of_mtd_name)
+ nor->mtd.name = of_mtd_name;
/* For some (historical?) reason many platforms provide two different
* names in flash_platform_data: "name" and "type". Quite often name is