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of: mtd: prepare helper reading NAND ECC algo from DT

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NAND subsystem is being slightly reworked to store ECC details in
separated fields. In future we'll want to add support for more DT
properties as specifying every possible setup with a single
"nand-ecc-mode" is a pretty bad idea.
To allow this let's add a helper that will support something like
"nand-ecc-algo" in future. Right now we use it for keeping backward
compatibility.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This commit is contained in:
Rafał Miłecki
2016-03-23 11:19:01 +01:00
committed by Boris Brezillon
parent b0fcd8ab7b
commit dd2dcc0042
2 changed files with 42 additions and 0 deletions
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6
include/linux/of_mtd.h
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@@ -13,6 +13,7 @@
#include <linux/of.h>
int of_get_nand_ecc_mode(struct device_node *np);
int of_get_nand_ecc_algo(struct device_node *np);
int of_get_nand_ecc_step_size(struct device_node *np);
int of_get_nand_ecc_strength(struct device_node *np);
int of_get_nand_bus_width(struct device_node *np);
@@ -25,6 +26,11 @@ static inline int of_get_nand_ecc_mode(struct device_node *np)
return -ENOSYS;
}
static inline int of_get_nand_ecc_algo(struct device_node *np)
{
return -ENOSYS;
}
static inline int of_get_nand_ecc_step_size(struct device_node *np)
{
return -ENOSYS;