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Re: [PATCH 10/10] ARM: dts: Fix dm814x pinctrl address and mask

From Matthijs van Duin <matthijsvanduin@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH 10/10] ARM: dts: Fix dm814x pinctrl address and mask
Date 2015-12-02 02:30 +0100
Message-ID <qB4p3-ui-9@gated-at.bofh.it> (permalink)
References <qB2GC-7Ot-3@gated-at.bofh.it> <qB2GC-7Ot-5@gated-at.bofh.it> <qB3t0-8kJ-15@gated-at.bofh.it> <qB3Ml-8rf-1@gated-at.bofh.it>
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On 2 December 2015 at 01:46, Tony Lindgren <tony@atomide.com> wrote:
> We should probably have separate PIN_INPUT_3V3 and PIN_OUTPUT_3V3
> dts macros that ensure that?

I'm in general no fan of such macros: it feels really awkward to have
to make that distinction in dts when doing pin config.

Note that if you're feeling really enthausiastic about putting in
effort to allow inputs to be disabled while staying clear of the
erratum, I think you can detect at runtime which I/O supplies are 3.3V
by inspecting this register:

#define CTRL_CQDETECT_STATUS    0x48140e00

Matthijs
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Thread

[PATCH 10/10] ARM: dts: Fix dm814x pinctrl address and mask Tony Lindgren <tony@atomide.com> - 2015-12-02 00:40 +0100
  Re: [PATCH 10/10] ARM: dts: Fix dm814x pinctrl address and mask Matthijs van Duin <matthijsvanduin@gmail.com> - 2015-12-02 01:30 +0100
    Re: [PATCH 10/10] ARM: dts: Fix dm814x pinctrl address and mask Tony Lindgren <tony@atomide.com> - 2015-12-02 01:50 +0100
      Re: [PATCH 10/10] ARM: dts: Fix dm814x pinctrl address and mask Matthijs van Duin <matthijsvanduin@gmail.com> - 2015-12-02 02:20 +0100
        Re: [PATCH 10/10] ARM: dts: Fix dm814x pinctrl address and mask Tony Lindgren <tony@atomide.com> - 2015-12-02 02:30 +0100
          Re: [PATCH 10/10] ARM: dts: Fix dm814x pinctrl address and mask Tony Lindgren <tony@atomide.com> - 2015-12-02 17:20 +0100
      Re: [PATCH 10/10] ARM: dts: Fix dm814x pinctrl address and mask Matthijs van Duin <matthijsvanduin@gmail.com> - 2015-12-02 02:30 +0100
        Re: [PATCH 10/10] ARM: dts: Fix dm814x pinctrl address and mask Tony Lindgren <tony@atomide.com> - 2015-12-02 17:20 +0100

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