[PATCH v3 1/2] dt-bindings: gpu: img,powervr-rogue: add spacemit,k3-gpu
Sterling-Ash <[email protected]>
| Newsgroups | org.infradead.lists.linux-riscv,dev.linux.lists.spacemit,org.freedesktop.lists.dri-devel,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
Add a compatible string for the IMG BXM-4-64 GPU integrated into the SpacemiT K3 SoC. It shares the same core as thead,th1520-gpu but is kept as a separate compatible entry, since the K3 integration differs from TH1520 in its clock and power-domain requirements: K3 has a single "core" clock rather than three, and its GPU power domain is enabled by the bootloader before Linux boots rather than being modelled and switched by Linux, so no power-domains property is required for this platform (unlike the other img,img-bxm-4-64 user). spacemit,k3-gpu is added to the existing ti,am62-gpu/ti,am62p-gpu/ ti,j721s2-gpu "if" block that restricts clocks to a single entry, since K3 has the same single-clock requirement. It does not match any "if" block that constrains power-domains, so that property falls back to this schema's general constraints, where it is optional. This leaves room for a power-domains provider to be added later without a further binding change, should one ever be modelled in Linux for this SoC. Signed-off-by: Sterling-Ash <[email protected]> --- v3: also add spacemit,k3-gpu to the existing ti,am62-gpu/ti,am62p-gpu/ ti,j721s2-gpu "if" block restricting clocks to a single entry -- previously it fell back to this schema's general clocks constraint (1-3 items), which would have let an invalid DT with 2 or 3 clocks pass validation (found by automated review on v2). .../devicetree/bindings/gpu/img,powervr-rogue.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml index a1f54dbae3f3..d29f0d163b91 100644 --- a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml +++ b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml @@ -38,6 +38,11 @@ properties: - thead,th1520-gpu - const: img,img-bxm-4-64 - const: img,img-rogue + - items: + - enum: + - spacemit,k3-gpu + - const: img,img-bxm-4-64 + - const: img,img-rogue - items: - enum: - ti,am62p-gpu @@ -100,6 +105,7 @@ allOf: compatible: contains: enum: + - spacemit,k3-gpu - ti,am62-gpu - ti,am62p-gpu - ti,j721s2-gpu -- 2.34.1 _______________________________________________ linux-riscv mailing list [email protected] http://lists.infradead.org/mailman/listinfo/linux-riscv