From: Rafał Miłecki rafal@milecki.pl
Until this change MTD subsystem supported handling partitions only with MTD partitions parsers. That's a specific / limited API designed around partitions.
Some MTD partitions may however require different handling. They may contain specific data that needs to be parsed and somehow extracted. For that purpose MTD subsystem should allow binding of standard platform drivers.
An example can be U-Boot (sub)partition with environment variables. There exist a "u-boot,env" DT binding for MTD (sub)partition that requires an NVMEM driver.
Ref: 5db1c2dbc04c ("dt-bindings: nvmem: add U-Boot environment variables binding") Signed-off-by: Rafał Miłecki rafal@milecki.pl --- drivers/mtd/mtdpart.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 357661b62c94..9fce946fa69c 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -17,6 +17,7 @@ #include <linux/mtd/partitions.h> #include <linux/err.h> #include <linux/of.h> +#include <linux/of_platform.h>
#include "mtdcore.h"
@@ -593,6 +594,7 @@ static int mtd_part_of_parse(struct mtd_info *master, continue; ret = mtd_part_do_parse(parser, master, pparts, NULL); if (ret > 0) { + of_platform_populate(np, NULL, NULL, &master->dev); of_node_put(np); return ret; } @@ -600,6 +602,7 @@ static int mtd_part_of_parse(struct mtd_info *master, if (ret < 0 && !err) err = ret; } + of_platform_populate(np, NULL, NULL, &master->dev); of_node_put(np);
/*