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From: timur@freescale.com (Timur Tabi)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: vexpress: initial device tree support
Date: Wed, 11 Jan 2012 17:32:44 -0600	[thread overview]
Message-ID: <4F0E1C1C.70909@freescale.com> (raw)
In-Reply-To: <4F0E1923.4090703@firmworks.com>

Mitch Bradley wrote:
> You make device nodes for each of the i2c adapters 

We have that already.

> (possibly with a GPIO 
> I2C mux node underneath the EDID one), 

Ok.

> then you point to the correct 
> adapter (or mux) node with a phandle-valued property in the video node.

The only connection between a device tree node and an I2C object is the
of_find_i2c_device_by_node() function.  That requires the I2C device to be
instantiated.

> Of course, you need the deferral patch cited in another message.

Last I heard, it's not ready.  I suspect it will be part of kernel 3.4, at
the earliest.

-- 
Timur Tabi
Linux kernel developer at Freescale

WARNING: multiple messages have this Message-ID (diff)
From: Timur Tabi <timur-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
To: Mitch Bradley <wmb-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
Cc: "Paweł Moll" <Pawel.Moll-5wv7dgnIgG8@public.gmane.org>,
	"patches-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org"
	<patches-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	"devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org"
	<devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org>,
	"Jamie Lokier" <jamie-yetKDKU6eevNLxjTenLetw@public.gmane.org>,
	"Rob Herring"
	<rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>,
	"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
	<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>
Subject: Re: [PATCH] ARM: vexpress: initial device tree support
Date: Wed, 11 Jan 2012 17:32:44 -0600	[thread overview]
Message-ID: <4F0E1C1C.70909@freescale.com> (raw)
In-Reply-To: <4F0E1923.4090703-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>

Mitch Bradley wrote:
> You make device nodes for each of the i2c adapters 

We have that already.

> (possibly with a GPIO 
> I2C mux node underneath the EDID one), 

Ok.

> then you point to the correct 
> adapter (or mux) node with a phandle-valued property in the video node.

The only connection between a device tree node and an I2C object is the
of_find_i2c_device_by_node() function.  That requires the I2C device to be
instantiated.

> Of course, you need the deferral patch cited in another message.

Last I heard, it's not ready.  I suspect it will be part of kernel 3.4, at
the earliest.

-- 
Timur Tabi
Linux kernel developer at Freescale

  reply	other threads:[~2012-01-11 23:32 UTC|newest]

Thread overview: 82+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-21  9:19 [PATCH] ARM: vexpress: initial device tree support Dave Martin
2011-09-21  9:19 ` Dave Martin
2011-09-21 13:24 ` Rob Herring
2011-09-21 13:24   ` Rob Herring
2011-09-21 14:24   ` Dave Martin
2011-09-21 14:24     ` Dave Martin
2011-09-21 14:33     ` Pawel Moll
2011-09-21 14:33       ` Pawel Moll
2011-09-21 15:49       ` Dave Martin
2011-09-21 15:49         ` Dave Martin
2011-09-21 14:57   ` Grant Likely
2011-09-21 14:57     ` Grant Likely
2011-09-21 16:01     ` Pawel Moll
2011-09-21 16:01       ` Pawel Moll
2011-09-21 16:17       ` Dave Martin
2011-09-21 16:17         ` Dave Martin
2011-09-21 16:28         ` Pawel Moll
2011-09-21 16:28           ` Pawel Moll
2011-09-21 16:37     ` Rob Herring
2011-09-21 16:37       ` Rob Herring
2011-09-21 17:15       ` Dave Martin
2011-09-21 17:15         ` Dave Martin
2011-09-21 17:47         ` Mitch Bradley
2011-09-21 17:47           ` Mitch Bradley
2011-09-22 12:19           ` Dave Martin
2011-09-22 12:19             ` Dave Martin
2012-01-09 23:26 ` Tabi Timur-B04825
2012-01-09 23:26   ` Tabi Timur-B04825
2012-01-10  0:42   ` Mitch Bradley
2012-01-10  0:42     ` Mitch Bradley
2012-01-10  2:24     ` Tabi Timur-B04825
2012-01-10  2:24       ` Tabi Timur-B04825
2012-01-10 12:22     ` Jamie Lokier
2012-01-10 12:22       ` Jamie Lokier
2012-01-10 21:58       ` Timur Tabi
2012-01-10 21:58         ` Timur Tabi
2012-01-10 22:35         ` Mitch Bradley
2012-01-10 22:35           ` Mitch Bradley
2012-01-10 23:55           ` Stephen Warren
2012-01-10 23:55             ` Stephen Warren
2012-01-11  0:02             ` Timur Tabi
2012-01-11  0:02               ` Timur Tabi
2012-01-11  0:28           ` Timur Tabi
2012-01-11  0:28             ` Timur Tabi
2012-01-11  6:43             ` Mitch Bradley
2012-01-11  6:43               ` Mitch Bradley
2012-01-11 20:17               ` Timur Tabi
2012-01-11 20:17                 ` Timur Tabi
2012-01-11 23:20                 ` Mitch Bradley
2012-01-11 23:20                   ` Mitch Bradley
2012-01-11 23:32                   ` Timur Tabi [this message]
2012-01-11 23:32                     ` Timur Tabi
2012-01-11 20:29               ` Stephen Warren
2012-01-11 20:29                 ` Stephen Warren
2012-01-11 20:32                 ` Timur Tabi
2012-01-11 20:32                   ` Timur Tabi
2012-01-11 20:36                   ` Stephen Warren
2012-01-11 20:36                     ` Stephen Warren
2012-01-11 21:37                     ` Timur Tabi
2012-01-11 21:37                       ` Timur Tabi
2012-01-11 21:57                       ` Stephen Warren
2012-01-11 21:57                         ` Stephen Warren
2012-01-12 12:24                     ` Jamie Lokier
2012-01-12 12:24                       ` Jamie Lokier
2012-01-12 16:49                       ` Stephen Warren
2012-01-12 16:49                         ` Stephen Warren
2012-01-11 23:16                 ` Mitch Bradley
2012-01-11 23:16                   ` Mitch Bradley
2012-01-12  0:15                   ` Stephen Warren
2012-01-12  0:15                     ` Stephen Warren
2012-01-12  0:38                     ` Mitch Bradley
2012-01-12  0:38                       ` Mitch Bradley
2012-01-12  0:47                       ` Mitch Bradley
2012-01-12  0:47                         ` Mitch Bradley
2012-01-12 16:45                       ` Stephen Warren
2012-01-12 16:45                         ` Stephen Warren
2012-01-12 12:09                     ` Jamie Lokier
2012-01-12 12:09                       ` Jamie Lokier
2012-01-12 16:52                       ` Stephen Warren
2012-01-12 16:52                         ` Stephen Warren
2012-01-10 11:04   ` Dave Martin
2012-01-10 11:04     ` Dave Martin

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