Re: [v6, 3/5] dt: move guts devicetree doc out of powerpc directory

Rob Herring
2016-03-17T17:06:40Z

On Wed, Mar 09, 2016 at 06:08:49PM +0800, Yangbo Lu wrote:
> Move guts devicetree doc to Documentation/devicetree/bindings/soc/fsl/
> since it's used by not only PowerPC but also ARM. And add a specification
> for 'little-endian' property.
>
> Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
> ---
> Changes for v2:
> - None
> Changes for v3:
> - None
> Changes for v4:
> - Added this patch
> Changes for v5:
> - Modified the description for little-endian property
> Changes for v6:
> - None
> ---
> Documentation/devicetree/bindings/{powerpc => soc}/fsl/guts.txt | 3 +++
> 1 file changed, 3 insertions(+)
> rename Documentation/devicetree/bindings/{powerpc => soc}/fsl/guts.txt (91%)
>
> diff --git a/Documentation/devicetree/bindings/powerpc/fsl/guts.txt b/Documentation/devicetree/bindings/soc/fsl/guts.txt
> similarity index 91%
> rename from Documentation/devicetree/bindings/powerpc/fsl/guts.txt
> rename to Documentation/devicetree/bindings/soc/fsl/guts.txt
> index b71b203..07adca9 100644
> --- a/Documentation/devicetree/bindings/powerpc/fsl/guts.txt
> +++ b/Documentation/devicetree/bindings/soc/fsl/guts.txt
> @@ -25,6 +25,9 @@ Recommended properties:
> - fsl,liodn-bits : Indicates the number of defined bits in the LIODN
> registers, for those SOCs that have a PAMU device.
>
> + - little-endian : Indicates that the global utilities block is little
> + endian. The default is big endian.

The default is "the native endianness of the system". So absence on an
ARM system would be LE. This property is valid for any simple-bus
device, so it isn't really required to document per device. You can, but
your description had better match the documented behaviour.

Rob