[PATCH 1/4] dt-bindings: crypto: rockchip: Add RK356x/RK3588 crypto engine binding

[Rob Herring (Arm)]

On Sat, 30 May 2026 17:06:42 +0100, Dawid Olesinski wrote:
> Add a YAML device tree binding for the Rockchip second-generation (V2)
> cryptographic hardware accelerator present on the RK3568 and RK3588 SoCs.
> 
> The IP block exposes AES-ECB, AES-CBC, AES-XTS block ciphers, SHA-1,
> SHA-224, SHA-256, SHA-384, SHA-512, MD5, and SM3 hash algorithms, each
> with a hardware DMA engine controlled via linked-list descriptors.
> 
> The binding covers two compatible strings:
> 
>   - rockchip,rk3568-crypto: clocks and resets are driven directly by the
>     non-secure CRU (accessible to Linux at EL1).
>   - rockchip,rk3588-crypto: clocks and resets live in SECURECRU, a
>     register bank sandboxed to TrustZone. Linux must request them through
>     the ARM SCMI firmware interface (scmi_clk / scmi_reset), as direct
>     MMIO access to SECURECRU from EL1 triggers a bus fault.
> 
> Signed-off-by: Dawid Olesinski <dawidro at gmail.com>
> ---
>  .../crypto/rockchip,rk3588-crypto.yaml        | 69 +++++++++++++++++++
>  1 file changed, 69 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/crypto/rockchip,rk3588-crypto.yaml
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
Lexical error: Documentation/devicetree/bindings/crypto/rockchip,rk3588-crypto.example.dts:30.33-49 Unexpected 'SCMI_CRYPTO_CORE'
Lexical error: Documentation/devicetree/bindings/crypto/rockchip,rk3588-crypto.example.dts:31.33-52 Unexpected 'SCMI_ACLK_SECURE_NS'
Lexical error: Documentation/devicetree/bindings/crypto/rockchip,rk3588-crypto.example.dts:32.33-52 Unexpected 'SCMI_HCLK_SECURE_NS'
Lexical error: Documentation/devicetree/bindings/crypto/rockchip,rk3588-crypto.example.dts:34.35-56 Unexpected 'SCMI_SRST_CRYPTO_CORE'
FATAL ERROR: Syntax error parsing input tree
make[2]: *** [scripts/Makefile.dtbs:140: Documentation/devicetree/bindings/crypto/rockchip,rk3588-crypto.example.dtb] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/builds/robherring/dt-review-ci/linux/Makefile:1660: dt_binding_check] Error 2
make: *** [Makefile:248: __sub-make] Error 2

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260530160704.3453555-2-dawidro@gmail.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.