Re: [PATCH] devicetree - document using aliases to set spi bus number.

From	Frank Rowand <frowand.list@gmail.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH] devicetree - document using aliases to set spi bus number.
Date	2016-05-25 20:10 +0200
Message-ID	<rCLpM-4a7-9@gated-at.bofh.it> (permalink)
References	(1 earlier) <rCojv-6cC-9@gated-at.bofh.it> <rCp5T-6JY-15@gated-at.bofh.it> <rCppg-6R7-11@gated-at.bofh.it> <rCu5z-1sd-3@gated-at.bofh.it> <rCL6q-3OI-25@gated-at.bofh.it>
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On 5/25/2016 10:49 AM, Rob Herring wrote:
> On Tue, May 24, 2016 at 04:34:50PM -0700, Frank Rowand wrote:
>> On 5/24/2016 11:32 AM, Mark Brown wrote:
>>> On Tue, May 24, 2016 at 08:03:48PM +0200, Christer Weinigel wrote:
>>>> On 05/24/2016 07:20 PM, Mark Brown wrote:
>>>
>>>>> I'm not sure this is something we want to support at all, I can't 
>>>>> immediately see anything that does this deliberately in the SPI
>>>>> code and obviously the "bus number" is something of a Linux
>>>>> specific concept which would need some explanation if we were going
>>>>> to document it.  It's something I'm struggling a bit to see a
>>>>> robust use case for that isn't better served by parsing sysfs,
>>>>> what's the goal here?
>>>
>>>> If this isn't something that should be in the Documentation/devicetree
>>>>  because it's not generig enough, where should Linux-specific
>>>> interpretations such as this be documented?
>>>
>>> I'm not clear that we want to document this at all since I am not clear
>>> that there is a sensible use case for doing it.  I did ask for one but
>>> you've not articulated one in this reply.  I am much less gung ho than
>>> Grant on this one, even as a Linux specific interface it seems very
>>> legacy.
> 
> No, we don't.
> 
>>>
>>
>> The time for the use case was when the patch was accepted.
> 
> Ideally, yes, but things getting missed in review or later deciding 
> things were a bad idea can always be debated again.
> 
>> It is in the kernel, it is appropriate to document it.
> 
> Things get undocumented all the time when we deprecate them.

If it is deprecated then it should be documented as deprecated so
people do not attempt to use it.

> 
> Rob
>

Thread

[PATCH] devicetree - document using aliases to set spi bus number. Christer Weinigel <christer@weinigel.se> - 2016-05-24 18:50 +0200
  Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-24 19:30 +0200
    Re: [PATCH] devicetree - document using aliases to set spi bus  number. Christer Weinigel <christer@weinigel.se> - 2016-05-24 20:20 +0200
      Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-24 20:40 +0200
        Re: [PATCH] devicetree - document using aliases to set spi bus  number. Christer Weinigel <christer@weinigel.se> - 2016-05-24 21:00 +0200
          Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Rutland <mark.rutland@arm.com> - 2016-05-25 14:20 +0200
            Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-25 15:00 +0200
          Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-25 14:40 +0200
        Re: [PATCH] devicetree - document using aliases to set spi bus number. Frank Rowand <frowand.list@gmail.com> - 2016-05-25 01:40 +0200
          Re: [PATCH] devicetree - document using aliases to set spi bus number. Frank Rowand <frowand.list@gmail.com> - 2016-05-25 02:20 +0200
          Re: [PATCH] devicetree - document using aliases to set spi bus  number. Rob Herring <robh@kernel.org> - 2016-05-25 19:50 +0200
            Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-25 20:10 +0200
            Re: [PATCH] devicetree - document using aliases to set spi bus number. Frank Rowand <frowand.list@gmail.com> - 2016-05-25 20:10 +0200
              Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-25 20:50 +0200
                Re: [PATCH] devicetree - document using aliases to set spi bus  number. Christer Weinigel <christer@weinigel.se> - 2016-05-26 03:20 +0200
                Re: [PATCH] devicetree - document using aliases to set spi bus number. Rob Herring <robh@kernel.org> - 2016-05-26 03:50 +0200
                Re: [PATCH] devicetree - document using aliases to set spi bus  number. Christer Weinigel <christer@weinigel.se> - 2016-05-26 04:00 +0200
                Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-26 12:20 +0200
                Re: [PATCH] devicetree - document using aliases to set spi bus  number. Christer Weinigel <christer@weinigel.se> - 2016-05-26 13:00 +0200
                Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-26 20:50 +0200
                Re: [PATCH] devicetree - document using aliases to set spi bus  number. Christer Weinigel <christer@weinigel.se> - 2016-05-26 23:10 +0200
                Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-27 18:50 +0200
  Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Rutland <mark.rutland@arm.com> - 2016-05-24 19:50 +0200
    Re: [PATCH] devicetree - document using aliases to set spi bus number. Frank Rowand <frowand.list@gmail.com> - 2016-05-24 22:50 +0200
      Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Rutland <mark.rutland@arm.com> - 2016-05-25 11:30 +0200
        Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-25 12:40 +0200
          Re: [PATCH] devicetree - document using aliases to set spi bus  number. Christer Weinigel <christer@weinigel.se> - 2016-05-25 13:30 +0200
            Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Rutland <mark.rutland@arm.com> - 2016-05-25 14:40 +0200
              Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-25 15:10 +0200
        Re: [PATCH] devicetree - document using aliases to set spi bus number. Frank Rowand <frowand.list@gmail.com> - 2016-05-25 17:40 +0200
          Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Rutland <mark.rutland@arm.com> - 2016-05-25 18:10 +0200
            Re: [PATCH] devicetree - document using aliases to set spi bus number. Frank Rowand <frowand.list@gmail.com> - 2016-05-25 18:30 +0200
            Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-25 20:10 +0200
          Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-25 20:00 +0200
            Re: [PATCH] devicetree - document using aliases to set spi bus number. Frank Rowand <frowand.list@gmail.com> - 2016-05-25 20:50 +0200
              Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-27 20:40 +0200
                Re: [PATCH] devicetree - document using aliases to set spi bus  number. Christer Weinigel <christer@weinigel.se> - 2016-05-28 23:00 +0200
                Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-30 18:20 +0200
    Re: [PATCH] devicetree - document using aliases to set spi bus number. Frank Rowand <frowand.list@gmail.com> - 2016-05-25 17:30 +0200
      Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Rutland <mark.rutland@arm.com> - 2016-05-25 18:10 +0200
        Re: [PATCH] devicetree - document using aliases to set spi bus number. Frank Rowand <frowand.list@gmail.com> - 2016-05-25 18:40 +0200
    Re: [PATCH] devicetree - document using aliases to set spi bus  number. Mark Brown <broonie@kernel.org> - 2016-05-25 20:50 +0200
    Re: [PATCH] devicetree - document using aliases to set spi bus  number. Rob Herring <robh@kernel.org> - 2016-05-25 20:50 +0200
      Re: [PATCH] devicetree - document using aliases to set spi bus number. Geert Uytterhoeven <geert@linux-m68k.org> - 2016-05-26 10:30 +0200

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