From: Arnd Bergmann <arnd@arndb.de>
To: Alexandre Courbot <gnurou@gmail.com>
Cc: Ray Jui <rjui@broadcom.com>, Rob Herring <robh+dt@kernel.org>,
Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Linus Walleij <linus.walleij@linaro.org>,
Grant Likely <grant.likely@linaro.org>,
Christian Daudt <bcm@fixthebug.org>,
Matt Porter <mporter@linaro.org>,
Florian Fainelli <f.fainelli@gmail.com>,
Russell King <linux@arm.linux.org.uk>,
Joe Perches <joe@perches.com>,
Scott Branden <sbranden@broadcom.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
bcm-kernel-feedback-list@broadcom.com,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
Subject: Re: [PATCH v5 1/3] gpio: Cygnus: define Broadcom Cygnus GPIO binding
Date: Wed, 17 Dec 2014 11:26:40 +0100 [thread overview]
Message-ID: <4583974.6IftQ5bv2t@wuerfel> (raw)
In-Reply-To: <CAAVeFuJhiten-eVLCa2sMG-nsRwjPMiZap8UJM1kNCuRyK-b1w@mail.gmail.com>
On Wednesday 17 December 2014 11:45:01 Alexandre Courbot wrote:
>
> Actually we are not that far from being able to do completely without
> any GPIO number, and maybe that's what we should aim for. I think the
> only remaining offender is the sysfs interface. If we could reach GPIO
> controllers through a fixed path and just export their GPIOs there, I
> believe we would have fixed the whole issue.
What about the hundreds of board files and device drivers that still
reference hardcoded gpio numbers? The problem seems mostly solved for
anything that uses DT, but there are some architectures and a number
of ARM platforms that don't use DT and probably never will.
I would assume they could all be changed to use gpiod_lookup tables,
but that's a lot of work.
Arnd
next prev parent reply other threads:[~2014-12-17 10:27 UTC|newest]
Thread overview: 118+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Ray Jui <rjui@broadcom.com>
2014-12-04 21:56 ` [PATCH 0/4] Add pinctrl support to Broadcom Cygnus SoC Ray Jui
2014-12-04 21:56 ` [PATCH 1/4] pinctrl: Broadcom Cygnus pinctrl device tree binding Ray Jui
2014-12-04 22:16 ` Belisko Marek
2014-12-04 22:35 ` Ray Jui
2014-12-04 21:56 ` [PATCH 2/4] pinctrl: cygnus: add initial pinctrl support Ray Jui
2014-12-04 21:56 ` [PATCH 3/4] ARM: mach-bcm: enable pinctrl support for Cygnus Ray Jui
2014-12-04 21:56 ` [PATCH 4/4] ARM: dts: enable pinctrl for Broadcom Cygnus Ray Jui
2014-12-05 19:51 ` [PATCH v2 0/4] Add pinctrl support to Broadcom Cygnus SoC Ray Jui
[not found] ` <1417809069-26510-1-git-send-email-rjui-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2014-12-05 19:51 ` [PATCH v2 1/4] pinctrl: Broadcom Cygnus pinctrl device tree binding Ray Jui
2014-12-05 19:51 ` [PATCH v2 2/4] pinctrl: cygnus: add initial pinctrl support Ray Jui
2014-12-05 19:51 ` [PATCH v2 3/4] ARM: mach-bcm: enable pinctrl support for Cygnus Ray Jui
2014-12-05 19:51 ` [PATCH v2 4/4] ARM: dts: enable pinctrl for Broadcom Cygnus Ray Jui
[not found] ` <Ray Jui <rjui-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2014-12-06 0:40 ` [PATCH 0/5] Add gpio support to Broadcom Cygnus SoC Ray Jui
2014-12-06 0:40 ` [PATCH 1/5] gpio: Cygnus: define Broadcom Cygnus GPIO binding Ray Jui
2015-01-13 7:57 ` Linus Walleij
2015-01-13 17:07 ` Ray Jui
2014-12-06 0:40 ` [PATCH 2/5] gpio: Cygnus: add GPIO driver Ray Jui
[not found] ` <1417826408-1600-3-git-send-email-rjui-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2014-12-06 1:28 ` Joe Perches
2014-12-06 2:14 ` Ray Jui
2014-12-06 2:34 ` Joe Perches
2014-12-06 3:41 ` Ray Jui
2014-12-06 4:24 ` Joe Perches
2014-12-08 1:34 ` Ray Jui
2014-12-08 1:59 ` Ray Jui
2014-12-06 0:40 ` [PATCH 3/5] ARM: mach-bcm: Enable GPIO support for Cygnus Ray Jui
2014-12-06 0:40 ` [PATCH 4/5] ARM: dts: enable GPIO for Broadcom Cygnus Ray Jui
2014-12-06 0:40 ` [PATCH 5/5] MAINTAINERS: Entry for Cygnus GPIO driver Ray Jui
2014-12-16 2:18 ` [PATCH v6 0/3] Add gpio support to Broadcom Cygnus SoC Ray Jui
2014-12-16 2:18 ` [PATCH v6 1/3] gpio: Cygnus: define Broadcom Cygnus GPIO binding Ray Jui
2014-12-16 2:18 ` [PATCH v6 2/3] gpio: Cygnus: add GPIO driver Ray Jui
2015-01-13 8:53 ` Linus Walleij
2015-01-13 17:05 ` Ray Jui
2015-01-16 10:14 ` Linus Walleij
2015-01-17 0:11 ` Ray Jui
2015-01-20 9:53 ` Linus Walleij
2015-01-20 19:17 ` Ray Jui
2014-12-16 2:18 ` [PATCH v6 3/3] ARM: dts: enable GPIO for Broadcom Cygnus Ray Jui
2014-12-16 8:56 ` [PATCH v6 0/3] Add gpio support to Broadcom Cygnus SoC Arnd Bergmann
2014-12-17 8:06 ` Alexandre Courbot
2015-02-04 2:09 ` [PATCH v4 0/4] Add pinctrl " Ray Jui
2015-02-04 2:09 ` [PATCH v4 1/4] pinctrl: bcm: consolidate Broadcom pinctrl drivers Ray Jui
[not found] ` <1423015801-26967-2-git-send-email-rjui-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2015-03-04 9:07 ` Linus Walleij
[not found] ` <CACRpkdaiM+mqGg43BT1Kr-CNi8+_U4KgZM4iZocv9+ovHL5hLQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-03-04 17:31 ` Ray Jui
[not found] ` <1423015801-26967-1-git-send-email-rjui-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2015-02-04 2:09 ` [PATCH v4 2/4] pinctrl: Broadcom Cygnus pinctrl device tree binding Ray Jui
2015-02-04 2:10 ` [PATCH v4 3/4] pinctrl: cygnus: add initial IOMUX driver support Ray Jui
2015-02-04 2:10 ` [PATCH v4 4/4] ARM: dts: enable IOMUX for Broadcom Cygnus Ray Jui
2015-02-25 19:29 ` [PATCH v4 0/4] Add pinctrl support to Broadcom Cygnus SoC Dmitry Torokhov
2014-12-08 2:38 ` [PATCH v2 0/5] Add gpio " Ray Jui
2014-12-08 2:38 ` [PATCH v2 1/5] gpio: Cygnus: define Broadcom Cygnus GPIO binding Ray Jui
2014-12-08 11:22 ` Arnd Bergmann
2014-12-08 16:55 ` Ray Jui
2014-12-08 17:11 ` Arnd Bergmann
2014-12-08 2:38 ` [PATCH v2 2/5] gpio: Cygnus: add GPIO driver Ray Jui
2014-12-08 2:38 ` [PATCH v2 3/5] ARM: mach-bcm: Enable GPIO support for Cygnus Ray Jui
2014-12-08 2:38 ` [PATCH v2 4/5] ARM: dts: enable GPIO for Broadcom Cygnus Ray Jui
2014-12-08 2:38 ` [PATCH v2 5/5] MAINTAINERS: Entry for Cygnus GPIO driver Ray Jui
2014-12-08 18:47 ` [PATCH v3 0/5] Add gpio support to Broadcom Cygnus SoC Ray Jui
2014-12-08 18:47 ` [PATCH v2 " Ray Jui
[not found] ` <1418064468-8512-2-git-send-email-rjui-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2014-12-08 18:48 ` Ray Jui
2014-12-08 18:47 ` [PATCH v3 1/5] gpio: Cygnus: define Broadcom Cygnus GPIO binding Ray Jui
2014-12-08 19:38 ` Arnd Bergmann
2014-12-08 19:45 ` Ray Jui
[not found] ` <1418064468-8512-1-git-send-email-rjui-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2014-12-08 18:47 ` [PATCH v3 2/5] gpio: Cygnus: add GPIO driver Ray Jui
2014-12-08 18:47 ` [PATCH v3 3/5] ARM: mach-bcm: Enable GPIO support for Cygnus Ray Jui
2014-12-08 18:47 ` [PATCH v3 4/5] ARM: dts: enable GPIO for Broadcom Cygnus Ray Jui
2014-12-08 18:47 ` [PATCH v3 5/5] MAINTAINERS: Entry for Cygnus GPIO driver Ray Jui
2014-12-08 20:41 ` [PATCH v4 0/5] Add gpio support to Broadcom Cygnus SoC Ray Jui
2014-12-08 20:41 ` [PATCH v4 1/5] gpio: Cygnus: define Broadcom Cygnus GPIO binding Ray Jui
2014-12-08 20:41 ` [PATCH v4 2/5] gpio: Cygnus: add GPIO driver Ray Jui
2014-12-10 10:34 ` Alexandre Courbot
[not found] ` <CAAVeFuJ875fvEwPbnc-Eewsw4Rp7hLbv7nXWBb=OgvLwhQBVvQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-12-11 1:30 ` Ray Jui
2014-12-08 20:41 ` [PATCH v4 3/5] ARM: mach-bcm: Enable GPIO support for Cygnus Ray Jui
2014-12-08 20:41 ` [PATCH v4 4/5] ARM: dts: enable GPIO for Broadcom Cygnus Ray Jui
2014-12-08 20:41 ` [PATCH v4 5/5] MAINTAINERS: Entry for Cygnus GPIO driver Ray Jui
2014-12-12 0:05 ` [PATCH v5 0/3] Add gpio support to Broadcom Cygnus SoC Ray Jui
2014-12-12 0:05 ` [PATCH v5 1/3] gpio: Cygnus: define Broadcom Cygnus GPIO binding Ray Jui
2014-12-12 12:08 ` Arnd Bergmann
2014-12-12 13:05 ` Alexandre Courbot
2014-12-12 15:28 ` Arnd Bergmann
2014-12-15 21:35 ` Ray Jui
2014-12-15 21:57 ` Arnd Bergmann
2014-12-16 0:08 ` Ray Jui
2014-12-17 2:52 ` Alexandre Courbot
2015-01-13 8:01 ` Linus Walleij
2014-12-17 2:45 ` Alexandre Courbot
2014-12-17 10:26 ` Arnd Bergmann [this message]
2014-12-17 13:16 ` Alexandre Courbot
2014-12-17 10:44 ` Russell King - ARM Linux
2014-12-17 13:13 ` Alexandre Courbot
2015-01-13 8:06 ` Linus Walleij
[not found] ` <CACRpkdZbGjNecrggrFr_18zjobXMBpkrSjBMAUfyfs2ZCebB0w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-01-13 11:41 ` Russell King - ARM Linux
2015-01-16 10:18 ` Linus Walleij
2014-12-12 17:17 ` Ray Jui
2014-12-12 0:05 ` [PATCH v5 2/3] gpio: Cygnus: add GPIO driver Ray Jui
2014-12-12 0:05 ` [PATCH v5 3/3] ARM: dts: enable GPIO for Broadcom Cygnus Ray Jui
2015-02-03 2:01 ` [PATCH v3 0/4] Add pinctrl support to Broadcom Cygnus SoC Ray Jui
2015-02-03 2:01 ` [PATCH v3 1/4] pinctrl: bcm: consolidate Broadcom pinctrl drivers Ray Jui
[not found] ` <1422928894-20716-1-git-send-email-rjui-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2015-02-03 2:01 ` [PATCH v3 2/4] pinctrl: Broadcom Cygnus pinctrl device tree binding Ray Jui
2015-02-03 2:01 ` [PATCH v3 3/4] pinctrl: cygnus: add initial IOMUX driver support Ray Jui
2015-02-03 17:40 ` Dmitry Torokhov
2015-02-03 19:29 ` Ray Jui
2015-02-03 20:00 ` Dmitry Torokhov
2015-02-03 20:16 ` Ray Jui
2015-02-03 2:01 ` [PATCH v3 4/4] ARM: dts: enable IOMUX for Broadcom Cygnus Ray Jui
2015-02-04 1:09 ` [PATCH v7 0/4] Add gpio/pinconf support to Broadcom Cygnus SoC Ray Jui
[not found] ` <1423012148-22560-1-git-send-email-rjui-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2015-02-04 1:09 ` [PATCH v7 1/4] pinctrl: Cygnus: define Broadcom Cygnus GPIO/PINCONF binding Ray Jui
2015-02-04 1:09 ` [PATCH v7 2/4] pinctrl: cygnus: add gpio/pinconf driver Ray Jui
2015-02-04 1:41 ` Dmitry Torokhov
2015-02-04 2:19 ` Ray Jui
2015-02-04 1:09 ` [PATCH v7 3/4] ARM: dts: enable GPIO for Broadcom Cygnus Ray Jui
2015-02-04 1:09 ` [PATCH v7 4/4] ARM: dts: cygnus: enable GPIO based hook detection Ray Jui
2015-02-04 17:20 ` [PATCH v8 0/4] Add gpio/pinconf support to Broadcom Cygnus SoC Ray Jui
2015-02-04 17:21 ` [PATCH v8 1/4] pinctrl: Cygnus: define Broadcom Cygnus GPIO/PINCONF binding Ray Jui
2015-02-04 17:21 ` [PATCH v8 2/4] pinctrl: cygnus: add gpio/pinconf driver Ray Jui
2015-02-09 19:20 ` Dmitry Torokhov
2015-02-10 21:47 ` Ray Jui
2015-02-04 17:21 ` [PATCH v8 3/4] ARM: dts: enable GPIO for Broadcom Cygnus Ray Jui
2015-02-04 17:21 ` [PATCH v8 4/4] ARM: dts: cygnus: enable GPIO based hook detection Ray Jui
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