From: sebastian.hesselbarth@googlemail•com (Sebastian Hesselbarth)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v2 01/12] ARM: Orion: DT support for IRQ and GPIO Controllers
Date: Thu, 05 Jul 2012 17:51:21 +0200 [thread overview]
Message-ID: <4FF5B7F9.9020507@googlemail.com> (raw)
In-Reply-To: <201207051454.24475.arnd@arndb.de>
On 07/05/2012 04:54 PM, Arnd Bergmann wrote:
> This way you have multiple nodes with the same register
> and different names, which is not how it normally works.
Ok.
>> This would have the advantage that DT describes gpio-to-irq dependencies.
>> Moreover, nodes that reference gpios can do gpios =<&gpio 71 0>; instead of
>> gpios =<&gpio3 7 0>;
>
> Is that desired?
>
> The device tree representation should match what is in the data sheet
> normally. If they are in a single continuous number range, then we should
> probably have a single device node with multiple register ranges
> rather than one device node for each 32-bit register. Looking at
> arch/arm/plat-orion/gpio.c I think that is not actually the case though
> and having separate banks is more logical.
Well, looking at the datasheet of Dove GPIOs are numbered [63:0] plus
GPOs [71:64]. This dt will be a lot shorter and maybe it is describing
the hardware as it is. (Not sure about the syntax for irqs, though)
gpio at d0400 {
compatible = "marvell,orion-gpio";
gpio-controller;
reg = <0xd0400 0x20>, /* GPIO[31: 0] */
<0xd0420 0x20>, /* GPIO[63:32] */
<0xe8400 0x0c>; /* GPO [71:64] */
ngpio = <72>;
interrupts = <12 13 14 15>, <61>;
};
Sebastian
next prev parent reply other threads:[~2012-07-05 15:51 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-03 14:22 [PATCH v2 00/12] IRQ, GPIO SPI, I2C, etc DTC support Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 01/12] ARM: Orion: DT support for IRQ and GPIO Controllers Andrew Lunn
2012-07-05 8:15 ` Andrew Lunn
2012-07-05 9:02 ` Thomas Petazzoni
2012-07-05 9:48 ` Andrew Lunn
2012-07-05 10:10 ` Thomas Petazzoni
2012-07-05 10:25 ` Andrew Lunn
2012-07-05 10:11 ` Arnaud Patard (Rtp)
2012-07-05 10:20 ` Thomas Petazzoni
2012-07-05 10:38 ` Arnaud Patard (Rtp)
2012-07-05 11:42 ` Thomas Petazzoni
2012-07-05 11:48 ` Andrew Lunn
2012-07-05 12:09 ` Sebastian Hesselbarth
2012-07-05 12:58 ` Thomas Petazzoni
2012-07-05 13:15 ` Andrew Lunn
2012-07-05 13:28 ` Thomas Petazzoni
2012-07-05 13:33 ` Andrew Lunn
2012-07-05 13:36 ` Thomas Petazzoni
2012-07-05 12:25 ` Arnd Bergmann
2012-07-05 13:08 ` Andrew Lunn
2012-07-05 13:47 ` Arnd Bergmann
2012-07-05 13:54 ` Andrew Lunn
2012-07-05 15:47 ` Arnd Bergmann
2012-07-05 14:14 ` Sebastian Hesselbarth
2012-07-05 14:43 ` Andrew Lunn
2012-07-05 14:54 ` Arnd Bergmann
2012-07-05 15:51 ` Sebastian Hesselbarth [this message]
2012-07-05 16:30 ` Arnaud Patard (Rtp)
2012-07-05 16:16 ` Andrew Lunn
2012-07-06 20:08 ` Arnd Bergmann
2012-07-06 21:00 ` Andrew Lunn
2012-07-07 0:24 ` Where to put a large bootloader-supplied device tree on ARM ? Mitch Bradley
2012-07-07 1:23 ` David VomLehn (dvomlehn)
2012-07-07 1:59 ` Mitch Bradley
2012-07-09 4:30 ` Nicolas Pitre
2012-07-12 6:52 ` Mitch Bradley
2012-07-12 18:16 ` Nicolas Pitre
2012-07-12 20:34 ` Rob Herring
2012-07-12 21:38 ` [U-Boot] " Albert ARIBAUD
2012-07-12 21:47 ` Wolfgang Denk
2012-07-13 1:28 ` Rob Herring
2012-07-13 6:45 ` Albert ARIBAUD
2012-07-05 18:36 ` [PATCH v2 01/12] ARM: Orion: DT support for IRQ and GPIO Controllers Mitch Bradley
2012-07-03 14:22 ` [PATCH v2 02/12] SPI: Refactor spi-orion to use SPI framework queue Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 03/12] spi-orion: remove uneeded spi_info Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 04/12] spi-orion: add device tree binding Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 05/12] ARM: kirkwood: use devicetree for orion-spi Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 06/12] ARM: kirkwood: use devicetree for SPI on dreamplug Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 07/12] I2C: MV64XXX: Add Device Tree support Andrew Lunn
2012-07-03 15:59 ` Florian Fainelli
2012-07-03 16:58 ` Andrew Lunn
2012-07-04 19:49 ` Florian Fainelli
2012-07-05 6:52 ` Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 08/12] Kirkwood: Add basic device tree support for QNAP TS219 Andrew Lunn
2012-07-03 15:47 ` Florian Fainelli
2012-07-03 17:09 ` Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 09/12] ARM: Kirkwood: DTify the watchdog timer Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 10/12] ATA: sata_mv: Add device tree support Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 11/12] ARM: Kirkwood: Use DT to configure SATA device Andrew Lunn
2012-07-03 14:52 ` Josh Coombs
2012-07-03 15:32 ` Andrew Lunn
2012-07-03 14:22 ` [PATCH v2 12/12] Crypto: CESA: Add support for DT based instantiation Andrew Lunn
2012-07-03 15:50 ` Florian Fainelli
2012-07-03 17:03 ` Andrew Lunn
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4FF5B7F9.9020507@googlemail.com \
--to=sebastian.hesselbarth@googlemail$(echo .)com \
--cc=linux-arm-kernel@lists$(echo .)infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox