[PATCH] Documentation: dt: Add binding for /secure-chosen/stdout-path

Jerome Forissier jerome.forissier at linaro.org
Thu Mar 30 23:34:20 PDT 2017

On 03/31/2017 12:28 AM, Rob Herring wrote:
> On Fri, Mar 03, 2017 at 10:24:33AM +0100, Jerome Forissier wrote:
>> Some platforms may use a single device tree to describe two address
>> spaces, as described in d9f43babb998 ("Documentation: dt: Add bindings
>> for Secure-only devices"). For these platforms it makes sense to define
>> a secure counterpart of /chosen, namely: /secure-chosen. This new node
>> is meant to be used by the secure firmware to pass data to the secure
>> OS. Only the stdout-path property is supported for now.
>> Signed-off-by: Jerome Forissier <jerome.forissier at linaro.org>
>> ---
>>  Documentation/devicetree/bindings/arm/secure.txt | 19 ++++++++++++++++++-
>>  1 file changed, 18 insertions(+), 1 deletion(-)
>> v2
>> - Clarify the expected behavior when /secure-chosen/stdout-path is not
>> present (either the property or the node itself), as proposed by Peter
>> and Robin. Note that I have made the fallback to /chosen optional.
> I'm okay with this, but would like to hold off merging it until your are 
> really using it. You did say you were "experimenting" and it doesn't 
> sound like the DT usage in secure world is that far along. I just want 
> to see if there are other issues that come up.

Fair enough.


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