From: "Andrew Jeffery" <andrew@aj.id.au>
To: "Andrew Geissler" <geissonator@gmail.com>
Cc: devicetree <devicetree@vger.kernel.org>,
linux-aspeed@lists.ozlabs.org, openbmc@lists.ozlabs.org,
linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org,
Joel Stanley <joel@jms.id.au>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 2/2] ARM: dts: aspeed: zaius: Add gpio line names
Date: Fri, 03 Apr 2020 11:21:41 +1030 [thread overview]
Message-ID: <48c9bd0e-3b5c-4f76-830f-4b0bd962148b@www.fastmail.com> (raw)
In-Reply-To: <9360D2B2-8242-4BA1-BF06-8916E87EDE67@gmail.com>
On Tue, 31 Mar 2020, at 04:46, Andrew Geissler wrote:
>
>
> > On Mar 26, 2020, at 6:20 PM, Andrew Jeffery <andrew@aj.id.au> wrote:
> >
> >
> >
> > On Sat, 7 Mar 2020, at 03:32, Andrew Geissler wrote:
> >> Name the GPIOs to help userspace work with them. The names describe the
> >> functionality the lines provide, not the net or ball name. This makes it
> >> easier to share userspace code across different systems and makes the
> >> use of the lines more obvious.
> >>
> >> Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
> >
> > So we're creating a bit of an ad-hoc ABI here between the DT and userspace.
> >
> > Where are we documenting it?
>
> Yeah, so far it’s basically design by precedent. If you want your OpenBMC
> function to work then follow the standards we're setting in other dts’s.
>
> Is there a good place to document this? I could create a OpenBMC design
> doc but that would not address non-OpenBMC areas.
Don't let perfect be the enemy of good enough :) Lets document it in OpenBMC
and then look at alternatives if we find it's necessary. I don't think we will given
that the contract is between the kernel and OpenBMC userspace.
Andrew
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next prev parent reply other threads:[~2020-04-03 0:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-06 17:02 [PATCH 1/2] ARM: dts: aspeed: romulus: Add gpio line names Andrew Geissler
2020-03-06 17:02 ` [PATCH 2/2] ARM: dts: aspeed: zaius: " Andrew Geissler
2020-03-26 23:20 ` Andrew Jeffery
2020-03-30 18:16 ` Andrew Geissler
2020-04-03 0:51 ` Andrew Jeffery [this message]
2020-04-03 16:19 ` Andrew Geissler
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