diff options
| author | Apurva Nandan <a-nandan@ti.com> | 2023-05-26 14:42:38 +0530 |
|---|---|---|
| committer | Praneeth Bajjuri <praneeth@ti.com> | 2023-05-30 06:35:37 -0500 |
| commit | 3832f7a8af6abc7ec997c19d1583fe59b4bbd534 (patch) | |
| tree | 39b090cf1b7be3c871d0318988cbd4f329ad3d27 /include/linux | |
| parent | 560786fee402bdc7ca29a92a35e7ae4605f8f1e8 (diff) | |
mtd: spinand: Add support for manufacturer-based ctrl_ops variations
Add ctrl_ops_variants, which can be used by the manufacturers' codes
to define their SPI control operation variants. Add a macro to easily
define ctrl_ops_varinats. This can be used to list out all the
supported ctrl ops with their respective protocols by the vendors.
Add spinand_select_ctrl_ops_variant() helper function to search for
a supported ctrl_ops variant with the required SPI protocol in a given
list of variants.
Signed-off-by: Apurva Nandan <a-nandan@ti.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mtd/spinand.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h index c4d8f22943..6d85193357 100644 --- a/include/linux/mtd/spinand.h +++ b/include/linux/mtd/spinand.h @@ -326,6 +326,18 @@ struct spinand_ctrl_ops { .protocol = __protocol, \ } +struct spinand_ctrl_ops_variants { + const struct spinand_ctrl_ops *ctrl_ops_list; + unsigned int nvariants; +}; + +#define SPINAND_CTRL_OPS_VARIANTS(name, ...) \ + const struct spinand_ctrl_ops_variants name = { \ + .ctrl_ops_list = (struct spinand_ctrl_ops[]){ __VA_ARGS__ }, \ + .nvariants = sizeof((struct spinand_ctrl_ops[]){ __VA_ARGS__ })/\ + sizeof(struct spinand_ctrl_ops), \ + } + /** * spinand_ecc_info - description of the on-die ECC implemented by a SPI NAND * chip @@ -374,6 +386,8 @@ struct spinand_info { const struct spinand_op_variants *write_cache; const struct spinand_op_variants *update_cache; } data_ops_variants; + + const struct spinand_ctrl_ops_variants *ctrl_ops_variants; int (*select_target)(struct spinand_device *spinand, unsigned int target); }; @@ -385,6 +399,9 @@ struct spinand_info { .update_cache = __update, \ } +#define SPINAND_INFO_CTRL_OPS_VARIANTS(__ctrl_ops_variants) \ + .ctrl_ops_variants = __ctrl_ops_variants + #define SPINAND_ECCINFO(__ooblayout, __get_status) \ .eccinfo = { \ .ooblayout = __ooblayout, \ |