On 26/02/20 6:25 pm, Pratyush Yadav wrote:
diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c index 1ed4f0907b..94e99eb99f 100644 --- a/drivers/mtd/spi/spi-nor-core.c +++ b/drivers/mtd/spi/spi-nor-core.c @@ -148,6 +148,32 @@ struct sfdp_header { struct sfdp_bfpt { u32 dwords[BFPT_DWORD_MAX]; };
+/**
- struct spi_nor_fixups - SPI NOR fixup hooks
- @default_init: called after default flash parameters init. Used to tweak
flash parameters when information provided by the flash_info
table is incomplete or wrong.
- @post_bfpt: called after the BFPT table has been parsed
- @post_sfdp: called after SFDP has been parsed (is also called for SPI NORs
that do not support RDSFDP). Typically used to tweak various
parameters that could not be extracted by other means (i.e.
when information provided by the SFDP/flash_info tables are
incomplete or wrong).
- Those hooks can be used to tweak the SPI NOR configuration when the SFDP
- table is broken or not available.
- */
+struct spi_nor_fixups {
- void (*default_init)(struct spi_nor *nor);
- int (*post_bfpt)(struct spi_nor *nor,
const struct sfdp_parameter_header *bfpt_header,const struct sfdp_bfpt *bfpt,struct spi_nor_flash_parameter *params);- void (*post_sfdp)(struct spi_nor *nor,
struct spi_nor_flash_parameter *params);+};
#endif /* SPI_FLASH_SFDP_SUPPORT */
static int spi_nor_read_write_reg(struct spi_nor *nor, struct spi_mem_op @@ -1743,6 +1769,19 @@ static const struct sfdp_bfpt_erase sfdp_bfpt_erases[] = {
static int spi_nor_hwcaps_read2cmd(u32 hwcaps);
+static int +spi_nor_post_bfpt_fixups(struct spi_nor *nor,
const struct sfdp_parameter_header *bfpt_header,const struct sfdp_bfpt *bfpt,struct spi_nor_flash_parameter *params)+{
- if (nor->info->fixups && nor->info->fixups->post_bfpt)
return nor->info->fixups->post_bfpt(nor, bfpt_header, bfpt,params);- return 0;
+}
/**
- spi_nor_parse_bfpt() - read and parse the Basic Flash Parameter Table.
- @nor: pointer to a 'struct spi_nor'
@@ -1914,7 +1953,7 @@ static int spi_nor_parse_bfpt(struct spi_nor *nor, return -EINVAL; }
- return 0;
- return spi_nor_post_bfpt_fixups(nor, bfpt_header, &bfpt, params);
}
/** @@ -2074,6 +2113,29 @@ static int spi_nor_parse_sfdp(struct spi_nor *nor, } #endif /* SPI_FLASH_SFDP_SUPPORT */
+/**
- spi_nor_post_sfdp_fixups() - Updates the flash's parameters and settings
- after SFDP has been parsed (is also called for SPI NORs that do not
- support RDSFDP).
- @nor: pointer to a 'struct spi_nor'
- Typically used to tweak various parameters that could not be extracted by
- other means (i.e. when information provided by the SFDP/flash_info tables
- are incomplete or wrong).
- */
+static void spi_nor_post_sfdp_fixups(struct spi_nor *nor,
struct spi_nor_flash_parameter *params)+{
- if (nor->info->fixups && nor->info->fixups->post_sfdp)
nor->info->fixups->post_sfdp(nor, params);+}
This would cause build failure as spi_nor_fixups is only available when SFDP support is enabled:
drivers/mtd/spi/spi-nor-core.c: In function ‘spi_nor_post_sfdp_fixups’: drivers/mtd/spi/spi-nor-core.c:2280:44: error: dereferencing pointer to incomplete type ‘const struct spi_nor_fixups’ 2280 | if (nor->info->fixups && nor->info->fixups->post_sfdp)
May be move all definitions of out the #ifdef
Regards Vignesh