[PATCH v2 00/11] Supporting restricted NAND controllers

[Miquel Raynal <miquel.raynal@xxxxxxxxxxx>]

Hello,

The first 6 patches are just miscellaneous changes, that do not bring
functional changes but clarify a few core areas.

Patches 7 and 8 change the NAND operation used to read ONFI/JEDEC
parameter pages. I expect all controllers to support it.

Patch 9 add new nand_monolithic_read/write_page_raw() helpers, that
could be used by drivers which are "constrained".

Finally, patches 10 and 11 soften the rules so that the hooks linked
to the above helpers are not overwritten by the core or NAND chip
drivers.

This series is needed in order to support controllers like Arasan's.

Thanks,
Miquèl

Changes in v2:
* Fixed the two wrong conversions of flag values from 8-bit digits
  into BIT() macros.
* Dropped "Help supporting controllers that are not able to split
  operations". Instead, decided on the fly for the read_param_page()
  uses (ONFI and JEDEC discovery) and wrote separate helpers for
  read/write_page_raw() (the Arasan driver will use them).
* Prevent the core and NAND chip drivers to overload the
  ecc->read/write_page_raw() hooks.
* Added Reviewed-by tags.

Miquel Raynal (11):
  mtd: rawnand: Translate obscure bitfields into readable macros
  mtd: rawnand: Reorder the nand_chip->options flags
  mtd: rawnand: Rename a NAND chip option
  mtd: rawnand: Fix comments about the use of bufpoi
  mtd: rawnand: Rename the use_bufpoi variables
  mtd: rawnand: Avoid indirect access to ->data_buf()
  mtd: rawnand: onfi: Adapt the parameter page read to constraint
    controllers
  mtd: rawnand: jedec: Adapt the parameter page read to constraint
    controllers
  mtd: rawnand: Expose monolithic read/write_page_raw() helpers
  mtd: rawnand: Allow controllers to overload soft ECC hooks
  mtd: rawnand: micron: Allow controllers to overload raw accessors

 drivers/mtd/nand/raw/atmel/nand-controller.c |   2 +-
 drivers/mtd/nand/raw/brcmnand/brcmnand.c     |   2 +-
 drivers/mtd/nand/raw/denali.c                |   2 +-
 drivers/mtd/nand/raw/meson_nand.c            |   2 +-
 drivers/mtd/nand/raw/mtk_nand.c              |   2 +-
 drivers/mtd/nand/raw/nand_base.c             | 122 +++++++++++++++----
 drivers/mtd/nand/raw/nand_jedec.c            |  28 +++--
 drivers/mtd/nand/raw/nand_micron.c           |   6 +-
 drivers/mtd/nand/raw/nand_onfi.c             |  14 +--
 drivers/mtd/nand/raw/qcom_nandc.c            |   2 +-
 drivers/mtd/nand/raw/stm32_fmc2_nand.c       |   2 +-
 drivers/mtd/nand/raw/sunxi_nand.c            |   2 +-
 drivers/mtd/nand/raw/tango_nand.c            |   2 +-
 drivers/mtd/nand/raw/tegra_nand.c            |   2 +-
 include/linux/mtd/rawnand.h                  |  97 ++++++++-------
 15 files changed, 184 insertions(+), 103 deletions(-)

-- 
2.20.1


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