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Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable

From Linus Walleij <linus.walleij@linaro.org>
Newsgroups linux.kernel
Subject Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable
Date 2017-05-12 11:10 +0200
Message-ID <tGeKe-2eI-15@gated-at.bofh.it> (permalink)
References (8 earlier) <tETot-69K-1@gated-at.bofh.it> <tETya-6cU-13@gated-at.bofh.it> <tEUDT-6RY-9@gated-at.bofh.it> <tEYet-Lz-3@gated-at.bofh.it> <tFb21-AT-9@gated-at.bofh.it>
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On Tue, May 9, 2017 at 12:54 PM, Geert Uytterhoeven
<geert@linux-m68k.org> wrote:

> The question I'm asking myself is: are these settings related to pin
> configuration (i.e. depending on the use of the pin, and several settings
> are valid, depending on the use case), or are they related to pinmux
> (i.e. defined by the function)?

If they are intrinsic to the function, i.e. whenever someone wants to use
that function they need to do this (nb the Documentation/pinctrl.txt
definition of "function", nothing else) then this should IMO not be in
the device tree at all, but hard-coded in the driver.

E.g. if someone needs to use a function such as "i2c0", on whatever
pins, then it should just be set up by the driver, no DT involved. It is a
hardware pecularity, drivers drive hardware so...

If however it depends on which pins it is used with, then it is pin
configuration and should use a DT property.

Yours,
Linus Walleij

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Thread

[PATCH v5 00/10] Renesas RZ/A1 pin and gpio controller Jacopo Mondi <jacopo+renesas@jmondi.org> - 2017-04-27 10:30 +0200
  [PATCH v5 05/10] arm: dts: dt-bindings: Add Renesas RZ/A1 pinctrl header Jacopo Mondi <jacopo+renesas@jmondi.org> - 2017-04-27 10:30 +0200
    Re: [PATCH v5 05/10] arm: dts: dt-bindings: Add Renesas RZ/A1 pinctrl header Geert Uytterhoeven <geert@linux-m68k.org> - 2017-04-27 10:40 +0200
      Re: [PATCH v5 05/10] arm: dts: dt-bindings: Add Renesas RZ/A1  pinctrl header Simon Horman <horms@verge.net.au> - 2017-04-28 07:20 +0200
  [PATCH v5 07/10] arm: dts: genmai: Add SCIF2 pin group Jacopo Mondi <jacopo+renesas@jmondi.org> - 2017-04-27 10:30 +0200
    Re: [PATCH v5 07/10] arm: dts: genmai: Add SCIF2 pin group Simon Horman <horms@verge.net.au> - 2017-04-28 07:30 +0200
  [PATCH v5 10/10] arm: dts: genmai: Add ethernet pin group Jacopo Mondi <jacopo+renesas@jmondi.org> - 2017-04-27 10:30 +0200
    Re: [PATCH v5 10/10] arm: dts: genmai: Add ethernet pin group Geert Uytterhoeven <geert@linux-m68k.org> - 2017-04-27 12:00 +0200
      RE: [PATCH v5 10/10] arm: dts: genmai: Add ethernet pin group Chris Brandt <Chris.Brandt@renesas.com> - 2017-04-27 12:50 +0200
        Re: [PATCH v5 10/10] arm: dts: genmai: Add ethernet pin group Simon Horman <horms@verge.net.au> - 2017-04-28 07:30 +0200
        Re: [PATCH v5 10/10] arm: dts: genmai: Add ethernet pin group Geert Uytterhoeven <geert@linux-m68k.org> - 2017-04-28 09:20 +0200
          RE: [PATCH v5 10/10] arm: dts: genmai: Add ethernet pin group Chris Brandt <Chris.Brandt@renesas.com> - 2017-04-28 16:50 +0200
            Re: [PATCH v5 10/10] arm: dts: genmai: Add ethernet pin group Linus Walleij <linus.walleij@linaro.org> - 2017-05-05 14:10 +0200
              Re: [PATCH v5 10/10] arm: dts: genmai: Add ethernet pin group Geert Uytterhoeven <geert@linux-m68k.org> - 2017-05-05 14:30 +0200
              RE: [PATCH v5 10/10] arm: dts: genmai: Add ethernet pin group Chris Brandt <Chris.Brandt@renesas.com> - 2017-05-05 14:50 +0200
                Re: [PATCH v5 10/10] arm: dts: genmai: Add ethernet pin group Linus Walleij <linus.walleij@linaro.org> - 2017-05-11 15:50 +0200
    Re: [PATCH v5 10/10] arm: dts: genmai: Add ethernet pin group Linus Walleij <linus.walleij@linaro.org> - 2017-04-28 11:00 +0200
      RE: [PATCH v5 10/10] arm: dts: genmai: Add ethernet pin group Chris Brandt <Chris.Brandt@renesas.com> - 2017-04-28 16:00 +0200
  [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Jacopo Mondi <jacopo+renesas@jmondi.org> - 2017-04-27 10:30 +0200
    Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-04-27 17:00 +0200
      Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Linus Walleij <linus.walleij@linaro.org> - 2017-04-28 10:40 +0200
        Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Geert Uytterhoeven <geert@linux-m68k.org> - 2017-04-28 12:20 +0200
          Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Linus Walleij <linus.walleij@linaro.org> - 2017-05-07 23:50 +0200
        RE: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and  output-enable Chris Brandt <Chris.Brandt@renesas.com> - 2017-04-28 14:10 +0200
          Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-04-28 14:20 +0200
            RE: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and  output-enable Chris Brandt <Chris.Brandt@renesas.com> - 2017-04-28 15:20 +0200
              Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-04-28 17:00 +0200
                RE: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and  output-enable Chris Brandt <Chris.Brandt@renesas.com> - 2017-04-28 17:20 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-04-28 17:40 +0200
                RE: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and  output-enable Chris Brandt <Chris.Brandt@renesas.com> - 2017-04-28 18:50 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Linus Walleij <linus.walleij@linaro.org> - 2017-05-08 01:30 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and  output-enable jmondi <jacopo@jmondi.org> - 2017-05-08 18:10 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-05-08 18:20 +0200
                RE: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and  output-enable Chris Brandt <Chris.Brandt@renesas.com> - 2017-05-08 19:10 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-05-08 20:30 +0200
                RE: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and  output-enable Chris Brandt <Chris.Brandt@renesas.com> - 2017-05-08 22:10 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and  output-enable jmondi <jacopo@jmondi.org> - 2017-05-08 19:30 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-05-08 19:50 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and  output-enable jmondi <jacopo@jmondi.org> - 2017-05-09 12:00 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Linus Walleij <linus.walleij@linaro.org> - 2017-05-08 23:20 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Geert Uytterhoeven <geert@linux-m68k.org> - 2017-05-09 13:00 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Linus Walleij <linus.walleij@linaro.org> - 2017-05-12 11:10 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Linus Walleij <linus.walleij@linaro.org> - 2017-05-12 11:10 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Geert Uytterhoeven <geert@linux-m68k.org> - 2017-05-12 13:20 +0200
                RE: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and  output-enable Chris Brandt <Chris.Brandt@renesas.com> - 2017-05-12 14:20 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Geert Uytterhoeven <geert@linux-m68k.org> - 2017-05-12 14:30 +0200
                RE: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and  output-enable Chris Brandt <Chris.Brandt@renesas.com> - 2017-05-12 15:00 +0200
                RE: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and  output-enable Chris Brandt <Chris.Brandt@renesas.com> - 2017-05-12 13:50 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and output-enable Dong Aisheng <dongas86@gmail.com> - 2017-05-23 12:10 +0200
                Re: [PATCH v5 01/10] pinctrl: generic: Add bi-directional and  output-enable jmondi <jacopo@jmondi.org> - 2017-05-23 20:40 +0200
  [PATCH v5 02/10] pinctrl: generic: Add macros to unpack properties Jacopo Mondi <jacopo+renesas@jmondi.org> - 2017-04-27 10:30 +0200
    Re: [PATCH v5 02/10] pinctrl: generic: Add macros to unpack properties Geert Uytterhoeven <geert@linux-m68k.org> - 2017-04-27 10:40 +0200
    Re: [PATCH v5 02/10] pinctrl: generic: Add macros to unpack properties Linus Walleij <linus.walleij@linaro.org> - 2017-04-28 10:20 +0200
      Re: [PATCH v5 02/10] pinctrl: generic: Add macros to unpack properties Geert Uytterhoeven <geert@linux-m68k.org> - 2017-04-28 12:10 +0200
      Re: [PATCH v5 02/10] pinctrl: generic: Add macros to unpack  properties jmondi <jacopo@jmondi.org> - 2017-04-28 14:50 +0200
      Re: [PATCH v5 02/10] pinctrl: generic: Add macros to unpack properties Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-04-28 18:30 +0200
  [PATCH v5 04/10] dt-bindings: pinctrl: Add RZ/A1 bindings doc Jacopo Mondi <jacopo+renesas@jmondi.org> - 2017-04-27 10:30 +0200
    Re: [PATCH v5 04/10] dt-bindings: pinctrl: Add RZ/A1 bindings doc Geert Uytterhoeven <geert@linux-m68k.org> - 2017-04-27 10:40 +0200
    Re: [PATCH v5 04/10] dt-bindings: pinctrl: Add RZ/A1 bindings doc Rob Herring <robh@kernel.org> - 2017-04-28 23:10 +0200
  [PATCH v5 06/10] arm: dts: r7s72100: Add pin controller node Jacopo Mondi <jacopo+renesas@jmondi.org> - 2017-04-27 10:30 +0200
  [PATCH v5 09/10] arm: dts: genmai: Add user led device nodes Jacopo Mondi <jacopo+renesas@jmondi.org> - 2017-04-27 10:30 +0200
  [PATCH v5 08/10] arm: dts: genmai: Add RIIC2 pin group Jacopo Mondi <jacopo+renesas@jmondi.org> - 2017-04-27 10:30 +0200
  Re: [PATCH v5 00/10] Renesas RZ/A1 pin and gpio controller Geert Uytterhoeven <geert@linux-m68k.org> - 2017-04-27 10:50 +0200
    Re: [PATCH v5 00/10] Renesas RZ/A1 pin and gpio controller Simon Horman <horms@verge.net.au> - 2017-04-28 07:30 +0200
    Re: [PATCH v5 00/10] Renesas RZ/A1 pin and gpio controller jmondi <jacopo@jmondi.org> - 2017-04-28 09:30 +0200
      Re: [PATCH v5 00/10] Renesas RZ/A1 pin and gpio controller Simon Horman <horms@verge.net.au> - 2017-04-28 09:40 +0200
      Re: [PATCH v5 00/10] Renesas RZ/A1 pin and gpio controller Geert Uytterhoeven <geert@linux-m68k.org> - 2017-04-28 09:40 +0200

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