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authorTudor Ambarus <tudor.ambarus@linaro.org>2023-03-31 07:46:02 +0000
committerTudor Ambarus <tudor.ambarus@linaro.org>2023-04-04 09:43:50 +0300
commit4e53ab0c292db99eff5dd65670bfdba79bbf338f (patch)
tree01de83fa31113343c4aac46d06c88c1dd484e831 /drivers/md/dm-mpath.c
parent3a4d5f4af9e668e59ce65115221fd964b3041da5 (diff)
mtd: spi-nor: Set the 4-Byte Address Mode method based on SFDP data
JESD216 SFDP defines in BFPT methods to enter and exit the 4-Byte Address Mode. The flash parameters and settings that are retrieved from SFDP have higher precedence than the static initialized ones, because they should be more accurate and less error prone than those initialized statically. Parse and favor the BFPT-parsed set_4byte_addr_mode methods. Some regressions may be introduced by this patch, because the params->set_4byte_addr_mode method that was set either in spi_nor_init_default_params() or later overwritten in default_init() hooks, are now be overwritten with a different value based on the BFPT data. If that's the case, the fix is to introduce a post_bfpt fixup hook where one should fix the wrong BFPT info. Link: https://lore.kernel.org/r/20230331074606.3559258-7-tudor.ambarus@linaro.org Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Diffstat (limited to 'drivers/md/dm-mpath.c')
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