On Mon, 21 Jul 2025 11:17:33 +0200, Tomeu Vizoso wrote:

Add the bindings for the Neural Processing Unit IP from Rockchip.

v2:

• Adapt to new node structure (one node per core, each with its own IOMMU)
• Several misc. fixes from Sebastian Reichel

v3:

• Split register block in its constituent subblocks, and only require the ones that the kernel would ever use (Nicolas Frattaroli)
• Group supplies (Rob Herring)
• Explain the way in which the top core is special (Rob Herring)

v4:

• Change required node name to npu@ (Rob Herring and Krzysztof Kozlowski)
• Remove unneeded items: (Krzysztof Kozlowski)
• Fix use of minItems/maxItems (Krzysztof Kozlowski)
• Add reg-names to list of required properties (Krzysztof Kozlowski)
• Fix example (Krzysztof Kozlowski)

v5:

• Rename file to rockchip,rk3588-rknn-core.yaml (Krzysztof Kozlowski)
• Streamline compatible property (Krzysztof Kozlowski)

v6:

• Remove mention to NVDLA, as the hardware is only incidentally related (Kever Yang)
• Mark pclk and npu clocks as required by all clocks (Rob Herring)

v7:

• Remove allOf section, not needed now that all nodes require 4 clocks (Heiko Stübner)

v8:

• Remove notion of top core (Robin Murphy)

Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com Reviewed-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Tested-by: Heiko Stuebner heiko@sntech.de Signed-off-by: Tomeu Vizoso tomeu@tomeuvizoso.net

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.../bindings/npu/rockchip,rk3588-rknn-core.yaml | 112 +++++++++++++++++++++ 1 file changed, 112 insertions(+)

Reviewed-by: Rob Herring (Arm) robh@kernel.org