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mtd: core: add nvmem-cells compatible to parse mtd as nvmem cells 

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>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210312062830.20548-1-ansuelsmth@gmail.com
This commit is contained in:
Ansuel Smith 2021-03-12 07:28:19 +01:00 committed by Miquel Raynal
parent e3c1f1c92d
commit 658c4448bb
1 changed files with 2 additions and 1 deletions
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3
drivers/mtd/mtdcore.c
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@ -531,6 +531,7 @@ static int mtd_nvmem_reg_read(void *priv, unsigned int offset,
static int mtd_nvmem_add(struct mtd_info *mtd) static int mtd_nvmem_add(struct mtd_info *mtd)
{ {
struct device_node *node = mtd_get_of_node(mtd);
struct nvmem_config config = {}; struct nvmem_config config = {};
config.id = -1; config.id = -1;
@ -543,7 +544,7 @@ static int mtd_nvmem_add(struct mtd_info *mtd)
config.stride = 1; config.stride = 1;
config.read_only = true; config.read_only = true;
config.root_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; config.priv = mtd;
mtd->nvmem = nvmem_register(&config); mtd->nvmem = nvmem_register(&config);