Messages in this thread | | | From | Geert Uytterhoeven <> | Date | Thu, 29 Feb 2024 10:23:15 +0100 | Subject | Re: [PATCH v2 2/4] dt-bindings: auxdisplay: Add bindings for generic 7 segment LED |
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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-m68korg
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
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