openwrt/target/linux/pistachio/patches-6.1/401-mtd-nor-support-mtd-name-from-device-tree.patch
Hauke Mehrtens fcdaf6673d kernel/pistachio: Restore kernel files for v6.1
This is an automatically generated commit which aids following Kernel patch
history, as git will see the move and copy as a rename thus defeating the
purpose.

For the original discussion see:
https://lists.openwrt.org/pipermail/openwrt-devel/2023-October/041673.html

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2024-07-01 00:46:15 +02:00

54 lines
1.6 KiB
Diff

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/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -2964,12 +2964,20 @@ static void spi_nor_set_mtd_info(struct
{
struct mtd_info *mtd = &nor->mtd;
struct device *dev = nor->dev;
+ struct device_node *np = spi_nor_get_flash_node(nor);
+ const char __maybe_unused *of_mtd_name = NULL;
spi_nor_set_mtd_locking_ops(nor);
spi_nor_set_mtd_otp_ops(nor);
mtd->dev.parent = dev;
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->type = MTD_NORFLASH;
mtd->flags = MTD_CAP_NORFLASH;
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -863,6 +863,17 @@ out_error:
*/
static void mtd_set_dev_defaults(struct mtd_info *mtd)
{
+#ifdef CONFIG_MTD_OF_PARTS
+ const char __maybe_unused *of_mtd_name = NULL;
+ struct device_node *np;
+
+ np = mtd_get_of_node(mtd);
+ if (np && !mtd->name) {
+ of_property_read_string(np, "linux,mtd-name", &of_mtd_name);
+ if (of_mtd_name)
+ mtd->name = of_mtd_name;
+ } else
+#endif
if (mtd->dev.parent) {
if (!mtd->owner && mtd->dev.parent->driver)
mtd->owner = mtd->dev.parent->driver->owner;