[PATCH v7 1/3] mtd: core: add nvmem-cells compatible to parse mtd as nvmem cells

[Ansuel Smith]

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 <ansuels...@gmail.com>
Tested-by: Rafał Miłecki <ra...@milecki.pl>
---
 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