Openwrt/target/linux/generic/backport-5.10/406-v5.13-0001-mtd-core-add-nvmem-cells-compatible-to-parse-mtd-as-.patch
Rafał Miłecki 3fd0a4222b kernel: backport 5.13 mtd partitioning changes
1. Use upstream accepted NVMEM patches
2. Minor fix for BCM4908 partitioning
3. Support for Linksys firmware partitions on Northstar

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2021-03-29 08:46:17 +02:00

39 lines
1.2 KiB
Diff

From a5d83d6e2bc747b13f347962d4b335d70b23559b Mon Sep 17 00:00:00 2001
From: Ansuel Smith <ansuelsmth@gmail.com>
Date: Fri, 12 Mar 2021 07:28:19 +0100
Subject: [PATCH] mtd: core: add nvmem-cells compatible to parse mtd as nvmem
cells
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Partitions that contains the nvmem-cells compatible will register
their direct subonodes as nvmem cells and the node will be treated as a
nvmem provider.
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Tested-by: Rafał Miłecki <rafal@milecki.pl>
---
drivers/mtd/mtdcore.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -531,6 +531,7 @@ static int mtd_nvmem_reg_read(void *priv
static int mtd_nvmem_add(struct mtd_info *mtd)
{
+ struct device_node *node = mtd_get_of_node(mtd);
struct nvmem_config config = {};
config.id = -1;
@@ -543,7 +544,7 @@ static int mtd_nvmem_add(struct mtd_info
config.stride = 1;
config.read_only = true;
config.root_only = true;
- config.no_of_node = true;
+ config.no_of_node = !of_device_is_compatible(node, "nvmem-cells");
config.priv = mtd;
mtd->nvmem = nvmem_register(&config);