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From: Segher Boessenkool <segher@kernel.crashing.org>
To: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org, Kumar Gala <kumar.gala@linaro.org>,
	Frank Rowand <frowand.list@gmail.com>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	devicetree-spec@vger.kernel.org,
	Grant Likely <grant.likely@arm.com>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	David Gibson <david@gibson.dropbear.id.au>
Subject: Re: DT case sensitivity
Date: Fri, 24 Aug 2018 11:52:42 -0500	[thread overview]
Message-ID: <20180824165242.GW24439@gate.crashing.org> (raw)
In-Reply-To: <CAL_Jsq+VnhT_4H4yECWsuXnmpQRnSHNRXAohRYds1LxcRjUHkw@mail.gmail.com>

On Fri, Aug 24, 2018 at 10:14:01AM -0500, Rob Herring wrote:
> Another question: Is there ever a case where the node name in the path
> aka 'driver-name' doesn't match the 'name' property? I think this
> generally can't happen on FDT as the 'name' property is generated when
> we unflatten it though I suppose one could craft an FDT with name
> properties.

In Open Firmware, it *is* the "name" property :-)

> There's also various places in the kernel that check for a NULL name
> which doesn't seem like it could happen either other than the root
> node.

In Open Firmware the root node is required to have a "name" property, too.
There are systems that violate that rule (as with most rules...)


Segher

WARNING: multiple messages have this Message-ID (diff)
From: Segher Boessenkool <segher@kernel.crashing.org>
To: Rob Herring <robh@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Kumar Gala <kumar.gala@linaro.org>,
	devicetree@vger.kernel.org, devicetree-spec@vger.kernel.org,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	Grant Likely <grant.likely@arm.com>,
	Frank Rowand <frowand.list@gmail.com>,
	David Gibson <david@gibson.dropbear.id.au>
Subject: Re: DT case sensitivity
Date: Fri, 24 Aug 2018 11:52:42 -0500	[thread overview]
Message-ID: <20180824165242.GW24439@gate.crashing.org> (raw)
In-Reply-To: <CAL_Jsq+VnhT_4H4yECWsuXnmpQRnSHNRXAohRYds1LxcRjUHkw@mail.gmail.com>

On Fri, Aug 24, 2018 at 10:14:01AM -0500, Rob Herring wrote:
> Another question: Is there ever a case where the node name in the path
> aka 'driver-name' doesn't match the 'name' property? I think this
> generally can't happen on FDT as the 'name' property is generated when
> we unflatten it though I suppose one could craft an FDT with name
> properties.

In Open Firmware, it *is* the "name" property :-)

> There's also various places in the kernel that check for a NULL name
> which doesn't seem like it could happen either other than the root
> node.

In Open Firmware the root node is required to have a "name" property, too.
There are systems that violate that rule (as with most rules...)


Segher

  reply	other threads:[~2018-08-24 16:52 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-23  0:47 DT case sensitivity Rob Herring
2018-08-23  1:03 ` Benjamin Herrenschmidt
2018-08-23  1:26   ` Rob Herring
2018-08-23  1:26     ` Rob Herring
2018-08-23  1:29     ` Benjamin Herrenschmidt
2018-08-23  1:29       ` Benjamin Herrenschmidt
2018-08-23  9:02       ` Grant Likely
2018-08-23  9:02         ` Grant Likely
2018-08-23 11:43         ` Rob Herring
2018-08-23 11:43           ` Rob Herring
2018-08-23 11:47           ` Benjamin Herrenschmidt
2018-08-23 11:47             ` Benjamin Herrenschmidt
2018-08-23 11:56             ` Grant Likely
2018-08-23 11:56               ` Grant Likely
2018-08-23 12:08             ` Rob Herring
2018-08-23 12:08               ` Rob Herring
2018-08-23 12:48               ` Grant Likely
2018-08-23 12:48                 ` Grant Likely
2018-08-23 12:36       ` Segher Boessenkool
2018-08-23 12:36         ` Segher Boessenkool
2018-08-24 15:14         ` Rob Herring
2018-08-24 15:14           ` Rob Herring
2018-08-24 16:52           ` Segher Boessenkool [this message]
2018-08-24 16:52             ` Segher Boessenkool
2018-08-23 12:19   ` Segher Boessenkool
2018-08-23 12:19     ` Segher Boessenkool
2018-08-23 21:49     ` Benjamin Herrenschmidt
2018-08-23 21:49       ` Benjamin Herrenschmidt
2018-08-24  5:39 ` Michael Ellerman

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