On Wed, 21 Nov 2018 12:08:02 +0100
Janusz Krzysztofik [off-list ref] wrote:

Finalize implementation of the idea suggested by Artem Bityutskiy and
Tony Lindgren, described in commit b027274d2e3a ("mtd: ams-delta: fix
request_mem_region() failure"). Use pure GPIO consumer API, as reqested
by Boris Brezillon.

Janusz Krzysztofik (4):
      ARM: OMAP1: ams-delta: Provide GPIO lookup table for NAND data port
      mtd: rawnand: ams-delta: Request data port GPIO resource
      mtd: rawnand: ams-delta: Use GPIO API for data I/O
      ARM: OMAP1: ams-delta: Drop obsolete NAND resources

 arch/arm/mach-omap1/board-ams-delta.c |   22 ++----
 drivers/mtd/nand/raw/ams-delta.c      |  120 +++++++++++++++++++---------------
 2 files changed, 80 insertions(+), 62 deletions(-)

Performance on Amstrad Delta is now acceptable after recent extensions
to GPIO API and rawnanad enhancements.

Series intented to be merged via mtd tree, should not conflict with
other OMAP1 patches submitted for 4.21.

We'll prepare an immutable tag, just in case.