linux-kernel - [PATCH v2 1/8] dt-bindings: clock: qcom: Allow VDD

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Message-ID: <20231220-sa8295p-gpu-v2-1-4763246b72c0@quicinc.com>
Date: Thu, 21 Dec 2023 20:39:22 -0800
From: Bjorn Andersson <quic_bjorande@...cinc.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio
	<konrad.dybcio@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        "Krzysztof
 Kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        Taniya Das <quic_tdas@...cinc.com>,
        Ulf Hansson
	<ulf.hansson@...aro.org>,
        Johan Hovold <johan+linaro@...nel.org>,
        "Catalin
 Marinas" <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-pm@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        "Bjorn
 Andersson" <quic_bjorande@...cinc.com>
Subject: [PATCH v2 1/8] 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.

Signed-off-by: Bjorn Andersson <quic_bjorande@...cinc.com>
---
 Documentation/devicetree/bindings/clock/qcom,gpucc.yaml | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/qcom,gpucc.yaml b/Documentation/devicetree/bindings/clock/qcom,gpucc.yaml
index f369fa34e00c..c0dd24c9dcb3 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gpucc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gpucc.yaml
@@ -53,6 +53,9 @@ properties:
   power-domains:
     maxItems: 1
 
+  vdd-gfx-supply:
+    description: Regulator supply for the VDD_GFX pads
+
   '#clock-cells':
     const: 1
 
@@ -74,6 +77,19 @@ required:
   - '#reset-cells'
   - '#power-domain-cells'
 
+# Allow either power-domains or vdd-gfx-supply, not both
+oneOf:
+  - required:
+      - power-domains
+  - required:
+      - vdd-gfx-supply
+  - not:
+      anyOf:
+        - required:
+            - power-domains
+        - required:
+            - vdd-gfx-supply
+
 additionalProperties: false
 
 examples:

-- 
2.25.1