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dt-bindings: misc: add property to support non-secure DSP

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Add property to set DSP domain as non-secure.

ADSP/MDSP/SDSP are by default secured, where as CDSP can be either be
secured/unsecured.
non-secured Compute DSP would allow users to load unsigned process
and run hexagon instructions, but limiting access to secured hardware
within the DSP.

Based on this flag device nodes for secured and unsecured are created.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jeya R <jeyr@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220214161002.6831-5-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jeya R 2022-02-14 16:09:54 +00:00 committed by Greg Kroah-Hartman
parent 6c16fd8bdd
commit fb42387b2e
1 changed files with 5 additions and 0 deletions
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5
Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
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@ -17,6 +17,11 @@ other tasks.
Definition: should specify the dsp domain name this fastrpc
corresponds to. must be one of this: "adsp", "mdsp", "sdsp", "cdsp"
- qcom,non-secure-domain:
Usage: required
Value type: <boolean>
Definition: Property to specify that dsp domain is non-secure.
- #address-cells
Usage: required
Value type: <u32>