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From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/2] ARM: mvebu: Add support to get the ID and the revision of a SoC
Date: Sun, 5 Jan 2014 20:17:10 +0100	[thread overview]
Message-ID: <201401052017.10982.arnd@arndb.de> (raw)
In-Reply-To: <20140105154023.GA2048@lunn.ch>

On Sunday 05 January 2014, Andrew Lunn wrote:
> That would be rather odd. These nodes are in the top level SoC dtsi
> file. When they are not used, they have status = "disabled" and are in
> the dtb blob with this state.
> 
> The only reason i can think of them not being present at all is if
> somebody adds an optimizer to dtc which removed disabled nodes. What
> does the device tree spec say about that? Are we relying on undefined
> dtc behavior?

There is no requirement to use the include files. If someone decides
to ship a default dtb file in their boot loader, it wouldn't be
a bug to leave the nodes out entirely.

	Arn

  parent reply	other threads:[~2014-01-05 19:17 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-03  9:59 [PATCH v2 0/2] Fix i2c bus hang on A0 version of the Armada XP SoCs Gregory CLEMENT
2014-01-03  9:59 ` [PATCH v2 1/2] ARM: mvebu: Add support to get the ID and the revision of a SoC Gregory CLEMENT
2014-01-03 14:47   ` Andrew Lunn
2014-01-03 14:51     ` Gregory CLEMENT
2014-01-03 15:13       ` Gregory CLEMENT
2014-01-03 16:41         ` Andrew Lunn
2014-01-03 19:30           ` Gregory CLEMENT
2014-01-03 18:48   ` Thomas Petazzoni
2014-01-03 19:25     ` Gregory CLEMENT
2014-01-03 18:59   ` Jason Gunthorpe
2014-01-03 19:35     ` Gregory CLEMENT
2014-01-05 14:25   ` Arnd Bergmann
2014-01-05 15:40     ` Andrew Lunn
2014-01-05 17:27       ` Jason Gunthorpe
2014-01-05 17:37         ` Sebastian Hesselbarth
2014-01-05 23:07           ` Jason Gunthorpe
2014-01-05 23:12             ` Sebastian Hesselbarth
2014-01-05 23:40               ` Jason Gunthorpe
2014-01-06  0:05                 ` Sebastian Hesselbarth
2014-01-06  0:17                   ` Andrew Lunn
2014-01-06  9:55                     ` Gregory CLEMENT
2014-01-06 10:10                       ` Gregory CLEMENT
2014-01-05 19:17       ` Arnd Bergmann [this message]
2014-01-05 23:51         ` Andrew Lunn
2014-01-06 15:37           ` Arnd Bergmann
2014-01-06 16:24             ` Andrew Lunn
2014-01-07 14:41               ` Arnd Bergmann
2014-01-06 10:28     ` Gregory CLEMENT
2014-01-03  9:59 ` [PATCH v2 2/2] i2c: mv64xxx: Fix bus hang on A0 version of the Armada XP SoCs Gregory CLEMENT
2014-01-03 12:20   ` Gregory CLEMENT
2014-01-03 18:49   ` Thomas Petazzoni
2014-01-03 19:31     ` Gregory CLEMENT
2014-01-05 14:33   ` Arnd Bergmann
2014-01-06  9:09     ` Gregory CLEMENT
2014-01-07  9:03       ` Arnd Bergmann
2014-01-07 13:17         ` Gregory CLEMENT
2014-01-07 20:50           ` Arnd Bergmann

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