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dt-bindings: clock: qcom: Allow VDD_GFX supply to GX

In some designs the SoC's VDD_GFX pads are supplied by an external
regulator, rather than a power-domain. Allow this to be described in the
GPU clock controller binding.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Link: https://lore.kernel.org/r/20240125-sa8295p-gpu-v4-1-7011c2a63037@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

authored by

Bjorn Andersson and committed by
Bjorn Andersson e60b95d2 c8bf3e08

+9
+9
Documentation/devicetree/bindings/clock/qcom,gpucc.yaml
··· 53 53 power-domains: 54 54 maxItems: 1 55 55 56 + vdd-gfx-supply: 57 + description: Regulator supply for the VDD_GFX pads 58 + 56 59 '#clock-cells': 57 60 const: 1 58 61 ··· 76 73 - '#clock-cells' 77 74 - '#reset-cells' 78 75 - '#power-domain-cells' 76 + 77 + # Require that power-domains and vdd-gfx-supply are not both present 78 + not: 79 + required: 80 + - power-domains 81 + - vdd-gfx-supply 79 82 80 83 additionalProperties: false 81 84