diff options
| author | Apurva Nandan <a-nandan@ti.com> | 2023-01-23 23:13:21 +0530 |
|---|---|---|
| committer | Praneeth Bajjuri <praneeth@ti.com> | 2023-01-25 14:10:19 -0600 |
| commit | ab9dd1b9846216d3fc703c19963897c7894ff4d5 (patch) | |
| tree | ae4299dbd081fe7f9764cbd6c40934ddd7427e7c /include | |
| parent | 1e0d0aebe707477c954d30cc225d2f4d184b1bb8 (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')
| -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 95b12689c9..6cf6772895 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, \ |