On Fri, Sep 05, 2014 at 10:32:22AM +0100, Robert Richter wrote:

On 05.09.14 09:42:00, Will Deacon wrote:

quoted

On Fri, Sep 05, 2014 at 08:46:44AM +0100, Robert Richter wrote:

quoted

From: Radha Mohan Chintakuntla <rchintakuntla-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>

This patch adds documentation for the devicetree bindings used by the
DT files of Cavium Thunder SoC platforms.

Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
Signed-off-by: Robert Richter <rrichter-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
---
 Documentation/devicetree/bindings/arm/cavium-thunder.txt | 10 ++++++++++
 Documentation/devicetree/bindings/arm/cpus.txt           |  1 +
 2 files changed, 11 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/cavium-thunder.txt

diff --git a/Documentation/devicetree/bindings/arm/cavium-thunder.txt b/Documentation/devicetree/bindings/arm/cavium-thunder.txt
new file mode 100644
index 000000000000..6f63a5866902
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/cavium-thunder.txt

@@ -0,0 +1,10 @@
+Cavium Thunder platform device tree bindings
+--------------------------------------------
+
+Boards with Cavium's Thunder SoC shall have following properties.
+
+Root Node
+---------
+Required root node properties:
+
+  - compatible = "cavium,thunder-88xx";

Is this file necessary? We don't have one for xgene afaict.

Hmm, looking at Documentation/devicetree/bindings/arm/calxeda.txt
there is something similar.

I am fine with both, keeping or removing it.

Would leave this to the DT maintainers.

Having a required root node compatible is fine, though I would only
expect it to be necessary for errata workarounds if we have no other way
of detecting things.

That said, compatible strings shouldn't have wildcards, so
"cavium,thunder-88xx" should be replaced with something more specific.
Later boards can claim compatibility with that (but should have their
own strings too).

Mark.
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