[PATCH v3 1/2] mtd: core: add nvmem-cells compatible to parse mtd as nvmem cells

Ansuel Smith
2021-03-08T20:28:51Z

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>
---
Depends on [PATCH] mtd: parsers: ofpart: limit parsing of deprecated DT syntax
---
drivers/mtd/mtdcore.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 2d6423d89a17..ac1b4f176a17 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -531,6 +531,7 @@ static int mtd_nvmem_reg_read(void *priv, unsigned int offset,

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 *mtd)
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);
--
2.30.0