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[00/10] mtd: rawnand: fsl_upm: Convert to exec_op() (and more)

Message ID 20200603134922.1352340-1-boris.brezillon@collabora.com
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Series mtd: rawnand: fsl_upm: Convert to exec_op() (and more) | expand


Boris Brezillon June 3, 2020, 1:49 p.m. UTC

A bit of context to explain the motivation behind those conversions
I've been sending for the last few weeks. The raw NAND subsystem
carries a lot of history which makes any rework not only painful, but
also subject to regressions which we only detect when someone dares to
update its kernel on one of those ancient HW. While carrying drivers
for old HW is not a problem per se, carrying ancient and unmaintained
drivers that are not converted to new APIs is a maintenance burden,
hence this massive conversion attempt I'm conducting here.

So here is a series converting the FSM UPM NAND controller driver to
exec_op(), plus a bunch of minor improvements done along the way.
I hope I'll find someone to test those changes, but if there's no one
still having access to this HW or no interest in keeping it supported
in recent kernel versions, we should definitely consider removing the
driver instead.



Boris Brezillon (10):
  mtd: rawnand: fsl_upm: Remove unused mtd var
  mtd: rawnand: fsl_upm: Get rid of the unused fsl_upm_nand.parts field
  mtd: rawnand: fsl_upm: Allocate the fsl_upm_nand object using
  mtd: rawnand: fsl_upm: Use devm_kasprintf() to allocate the MTD name
  mtd: rawnand: fsl_upm: Use platform_get_resource() +
  mtd: rawnand: fsl_upm: Use gpio descriptors
  mtd: rawnand: fsl_upm: Inherit from nand_controller
  mtd: rawnand: fsl_upm: Implement exec_op()
  mtd: rawnand: fsl_upm: Get rid of the legacy interface implementation
  dt-bindings: mtd: fsl-upm-nand: Deprecate chip-delay and

 .../devicetree/bindings/mtd/fsl-upm-nand.txt  |  10 +-
 drivers/mtd/nand/raw/fsl_upm.c                | 311 +++++++-----------
 2 files changed, 117 insertions(+), 204 deletions(-)