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| author | Tudor Ambarus <tudor.ambarus@microchip.com> | 2021-10-29 20:26:13 +0300 |
|---|---|---|
| committer | Tudor Ambarus <tudor.ambarus@microchip.com> | 2021-11-17 14:41:28 +0200 |
| commit | dacc8cfee493891b130507a4646806b3d0597ee7 (patch) | |
| tree | d87838dcefa979ec69bf1acdf5eb8bb4037a5a96 /drivers/mtd/spi-nor/core.h | |
| parent | 5854d4a6cc356ba3e16d8593ac1c089a32d1759c (diff) | |
| download | linux-dacc8cfee493891b130507a4646806b3d0597ee7.tar.bz2 | |
mtd: spi-nor: core: Introduce the late_init() hook
Flash parameters init is done in a spaghetti way right now.
There is the init based on the flash_info data, then there is the
default_init() hook, then SFDP init, an intermediary post_bft(),
then post_sfdp() and a spi_nor_late_init_params(). Each method can
overwrite previuosly initialized parameters.
We want to separate what is SFDP and non-SFDP specific. late_init()
will replace the default_init() hook and will be used only to initialize
flash parameters that are not declared in the JESD216 SFDP standard, or
where SFDP tables are not defined at all.
We cut a member in the chain of initializing parameters by getting rid
of the default_init() hook, and we make it clear that everything that is
in late_init() is not covered by the SFDP tables defined by the flash.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Michael Walle <michael@walle.cc>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
Link: https://lore.kernel.org/r/20211029172633.886453-6-tudor.ambarus@microchip.com
Diffstat (limited to 'drivers/mtd/spi-nor/core.h')
| -rw-r--r-- | drivers/mtd/spi-nor/core.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h index 223a03769950..50bae06bc024 100644 --- a/drivers/mtd/spi-nor/core.h +++ b/drivers/mtd/spi-nor/core.h @@ -297,6 +297,9 @@ struct spi_nor_flash_parameter { * parameters that could not be extracted by other means (i.e. * when information provided by the SFDP/flash_info tables are * incomplete or wrong). + * @late_init: used to initialize flash parameters that are not declared in the + * JESD216 SFDP standard, or where SFDP tables not defined at all. + * Will replace the default_init() hook. * * Those hooks can be used to tweak the SPI NOR configuration when the SFDP * table is broken or not available. @@ -307,6 +310,7 @@ struct spi_nor_fixups { const struct sfdp_parameter_header *bfpt_header, const struct sfdp_bfpt *bfpt); void (*post_sfdp)(struct spi_nor *nor); + void (*late_init)(struct spi_nor *nor); }; struct flash_info { |