From: Alyssa Rosenzweig <alyssa@collabora.com>
To: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Sven Peter <sven@svenpeter.dev>,
Linus Walleij <linus.walleij@linaro.org>,
Joey Gouly <joey.gouly@arm.com>,
Andy Shevchenko <andriy.shevchenko@intel.com>,
"open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
Hector Martin <marcan@marcan.st>, Marc Zyngier <maz@kernel.org>,
Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>,
nd <nd@arm.com>, Stan Skowronek <stan@corellium.com>
Subject: Re: [PATCH v1 1/1] pinctrl: add pinctrl/GPIO driver for Apple SoCs
Date: Mon, 27 Sep 2021 04:46:34 -0400 [thread overview]
Message-ID: <YVGE6r5RPjuP6u+W@maud> (raw)
In-Reply-To: <CAHp75Vc0CyhuqbVhpO-2xnjM5ZR2px5psZTVsKGdhx++OFB-kg@mail.gmail.com>
> > Apple calls those four controllers "gpio", "nub-gpio", "smc-gpio"
> > and "aop-gpio". SMC is their system management controller and AOP
> > is their "always-on processor". No idea what "nub-gpio" is.
>
> It's similar to what we have in Baytrail/Cherrytrail.
> AOP -> SUS
> SMC -> ...
>
> nub is probably related to some type of hub (or maybe simple typo, or
> typo on purpose?).
Unlikely a typo. "nub" is an Apple term. In software, an XNU (macOS)
kernel driver has a "nub" for exposing its public API. I don't know what
it means for hardware but very likely intentional.
next prev parent reply other threads:[~2021-09-27 8:46 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-21 22:29 [PATCH v1 0/1] pinctrl/GPIO driver for Apple SoCs Joey Gouly
2021-09-21 22:29 ` [PATCH v1 1/1] pinctrl: add " Joey Gouly
2021-09-22 7:20 ` Andy Shevchenko
2021-09-25 13:44 ` Joey Gouly
2021-09-26 5:08 ` Andy Shevchenko
2021-09-26 12:48 ` Linus Walleij
2021-09-26 12:56 ` Sven Peter
2021-09-26 13:10 ` Linus Walleij
2021-09-26 14:35 ` Sven Peter
2021-09-26 16:28 ` Andy Shevchenko
2021-09-27 5:45 ` Sven Peter
2021-09-27 9:00 ` Andy Shevchenko
2021-09-27 9:27 ` Hans de Goede
2021-09-27 9:43 ` Andy Shevchenko
2021-09-27 8:46 ` Alyssa Rosenzweig [this message]
2021-09-27 8:55 ` Andy Shevchenko
2021-09-27 23:34 ` Linus Walleij
2021-09-28 21:20 ` Joey Gouly
2021-09-28 18:21 ` Joey Gouly
2021-09-28 21:50 ` Linus Walleij
2021-09-22 13:09 ` Marc Zyngier
2021-09-22 23:58 ` Linus Walleij
2021-09-22 6:59 ` [PATCH v1 0/1] " Andy Shevchenko
2021-09-23 0:10 ` Linus Walleij
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