Re: [RFC PATCH 0/8] mtd: rawnand: ams-delta: Use gpio-omap accessors for data I/O

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, 20 Jul 2018 19:55:42 +0200
Janusz Krzysztofik <jmkrzyszt@xxxxxxxxx> wrote:

> Hi Boris,
> 
> On Thursday, July 19, 2018 8:15:08 AM CEST Boris Brezillon wrote:
> > Hi Janusz,
> > 
> > On Thu, 19 Jul 2018 01:57:02 +0200
> > Janusz Krzysztofik <jmkrzyszt@xxxxxxxxx> wrote:
> >   
> > > 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.
> 
> > 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. 
--
To unsubscribe from this list: send the line "unsubscribe linux-gpio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux SPI]     [Linux Kernel]     [Linux ARM (vger)]     [Linux ARM MSM]     [Linux Omap]     [Linux Arm]     [Linux Tegra]     [Fedora ARM]     [Linux for Samsung SOC]     [eCos]     [Linux Fastboot]     [Gcc Help]     [Git]     [DCCP]     [IETF Announce]     [Security]     [Linux MIPS]     [Yosemite Campsites]

  Powered by Linux