linux-kernel - Re: [PATCH 2/4] net: rfkill: gpio: remove gpio names

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Message-ID: <CACRpkdaU3OCa1qDojcBK4Ci+YfOC7YfqLWqqBiwzh9vfEasH+g@mail.gmail.com>
Date:	Fri, 7 Mar 2014 10:58:51 +0800
From:	Linus Walleij <linus.walleij@...aro.org>
To:	"Gross, Mark" <mark.gross@...el.com>
Cc:	Stephen Warren <swarren@...dotorg.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Grant Likely <grant.likely@...aro.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Chen-Yu Tsai <wens@...e.org>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Johannes Berg <johannes@...solutions.net>,
	"David S. Miller" <davem@...emloft.net>,
	Rhyland Klein <rklein@...dia.com>,
	linux-wireless <linux-wireless@...r.kernel.org>,
	netdev <netdev@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>,
	"Westerberg, Mika" <mika.westerberg@...el.com>,
	"mgross@...ux.intel.com" <mgross@...ux.intel.com>
Subject: Re: [PATCH 2/4] net: rfkill: gpio: remove gpio names

On Fri, Feb 28, 2014 at 1:38 AM, Gross, Mark <mark.gross@...el.com> wrote:

> So if you have the luxury of being able to influence (file bugs against or write)
> the platform enumeration ABI then with ACPI you can have a named gpio today.
> Note: there is an expectation that the _PRP feature to go into the next version
> of ACPI and that should enable a trivial 1-1 mapping (when _prp is used by the
> ACPI platform) between the different platform enumeration API's (DT and ACPI).

Oh I wasn't aware. This makes things better, and gives con_id a clear usecase
in the ACPI probe path as well.

[Stephen]
>> If there were ever an (upstream?) ACPI "binding"(?) for the Tegra SDHCI
>> controller, I would hope it would use the exact same names for the GPIO
>> signals.
>
> me to!

Amen to that.

Yours,
Linus Walleij
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