On Fri, 20 Jul 2018 19:55:42 +0200
Janusz Krzysztofik [off-list ref] wrote:

Hi Boris,

On Thursday, July 19, 2018 8:15:08 AM CEST Boris Brezillon wrote:

quoted

Hi Janusz,

On Thu, 19 Jul 2018 01:57:02 +0200
Janusz Krzysztofik [off-list ref] wrote:
  

quoted

Implement the idea suggested by Artem Bityutskiy and Tony Lindgren
described in commit b027274d2e3a ("mtd: ams-delta: fix
request_mem_region() failure").  

Thanks for doing that. I'll review the patches, but I already have a
extra request: can you convert this driver to ->exec_op()? It does not
necessarily have to be done in this patchset, but, that'd be great to
have one more driver converted to the new interface.  

OK, I'll have a look as my free time permits.

quoted

BTW, there seems to be a nand_gpio driver, maybe we should merge
ams-delta code into nand_gpio after it's been patched to use the GPIO
consumer API.  

nand_gpio uses a form of read()/write() on a single bidirectional register for 
data transfer, not GPIO, and it does not make use of NRE / NWE signals.  Maybe 
the two drivers could be merged to some extent but not entirely, I think.

Well, yes, right now the nand-gpio driver is assuming the data bus
is not bit-banged, but that's something we can easily add. Anyway, my
remark was more a "nice to have" not a hard requirement.