From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Rob Herring <robh@kernel.org>,
Chris Packham <chris.packham@alliedtelesis.co.nz>,
andy@kernel.org, krzysztof.kozlowski+dt@linaro.org,
conor+dt@kernel.org, andrew@lunn.ch,
gregory.clement@bootlin.com, sebastian.hesselbarth@gmail.com,
ojeda@kernel.org, tzimmermann@suse.de, javierm@redhat.com,
robin@protonic.nl, lee@kernel.org, pavel@ucw.cz,
devicetree@vger.kernel.org, linux-leds@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 2/4] dt-bindings: auxdisplay: Add bindings for generic 7 segment LED
Date: Thu, 29 Feb 2024 10:23:15 +0100 [thread overview]
Message-ID: <CAMuHMdWgytkANQ19=pSfG7Jpddo7Htgp2P=p7EAVmpWYuGPmCg@mail.gmail.com> (raw)
In-Reply-To: <CAHp75VfW0Q7At+JnyWGXP3d=2dfWADRiQ-Z97B2JcZio3A_tyw@mail.gmail.com>
Hi Andy,
On Wed, Feb 28, 2024 at 3:58 PM Andy Shevchenko
<andy.shevchenko@gmail.com> wrote:
> On Wed, Feb 28, 2024 at 4:04 PM Rob Herring <robh@kernel.org> wrote:
> > On Wed, Feb 28, 2024 at 10:22:42AM +1300, Chris Packham wrote:
>
> ...
>
> > > + segment-gpios:
> > > + description:
> > > + An array of GPIOs one per segment.
> > > + minItems: 7
> >
> > How does one know which GPIO is which segment?
>
> I believe we need just to agree on this. Since anybody can shuffle
> GPIOs in the DT, there is no need to support arbitrary orders. And
> naturally 'a' is bit 0, 'g' is bit 6, 'dp' bit 7 if present.
Note that there are no bits involved at this level, only GPIO specifiers.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
next prev parent reply other threads:[~2024-02-29 9:23 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-27 21:22 [PATCH v2 0/4] auxdisplay: 7 segment LED display Chris Packham
2024-02-27 21:22 ` [PATCH v2 1/4] auxdisplay: Add 7 segment LED display driver Chris Packham
2024-02-27 22:13 ` Randy Dunlap
2024-02-27 23:56 ` Andy Shevchenko
2024-02-27 21:22 ` [PATCH v2 2/4] dt-bindings: auxdisplay: Add bindings for generic 7 segment LED Chris Packham
2024-02-27 22:19 ` Rob Herring
2024-02-28 0:03 ` Andy Shevchenko
2024-02-28 1:53 ` Chris Packham
2024-02-28 17:22 ` Andy Shevchenko
2024-02-28 14:04 ` Rob Herring
2024-02-28 14:57 ` Andy Shevchenko
2024-02-29 9:23 ` Geert Uytterhoeven [this message]
2024-02-29 10:42 ` Andy Shevchenko
2024-02-28 20:01 ` Chris Packham
2024-02-29 9:24 ` Geert Uytterhoeven
2024-02-29 10:44 ` andy
2024-02-27 21:22 ` [PATCH v2 3/4] ARM: dts: marvell: Add 7 segment LED display on x530 Chris Packham
2024-02-28 0:12 ` Andy Shevchenko
2024-02-27 21:22 ` [PATCH v2 4/4] ARM: dts: marvell: Indicate USB activity " Chris Packham
2024-02-28 0:09 ` Andy Shevchenko
2024-02-28 1:11 ` Chris Packham
2024-02-28 0:05 ` [PATCH v2 0/4] auxdisplay: 7 segment LED display Andy Shevchenko
2024-02-28 0:25 ` Chris Packham
2024-02-28 18:45 ` Andy Shevchenko
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