linux-kernel - [PATCH 1/3] dt-bindings: usb: qcom,dwc3: Add multi-pd bindings for dwc3 qcom

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Message-Id: <1630346073-7099-2-git-send-email-sanm@codeaurora.org>
Date:   Mon, 30 Aug 2021 23:24:31 +0530
From:   Sandeep Maheswaram <sanm@...eaurora.org>
To:     Rob Herring <robh+dt@...nel.org>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Felipe Balbi <balbi@...nel.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Doug Anderson <dianders@...omium.org>,
        Matthias Kaehlcke <mka@...omium.org>
Cc:     devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        Pratham Pratap <prathampratap@...eaurora.org>,
        Sandeep Maheswaram <sanm@...eaurora.org>
Subject: [PATCH 1/3] dt-bindings: usb: qcom,dwc3: Add multi-pd bindings for dwc3 qcom

Add multi pd bindings to set performance state for cx domain
to maintain minimum corner voltage for USB clocks.

Signed-off-by: Sandeep Maheswaram <sanm@...eaurora.org>
---
 Documentation/devicetree/bindings/usb/qcom,dwc3.yaml | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
index e70afc4..838d9c4 100644
--- a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
@@ -41,7 +41,18 @@ properties:
 
   power-domains:
     description: specifies a phandle to PM domain provider node
-    maxItems: 1
+    minItems: 1
+    items:
+      - description: optional,cx power domain
+      - description: USB gdsc power domain
+
+  power-domain-names:
+     items:
+      - const: cx
+      - const: usb_gdsc
+
+  required-opps:
+    description: specifies the performance state to cx power domain
 
   clocks:
     description:
-- 
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