linux-kernel - [PATCH v2 1/3] dt-bindings: usb: qcom,dwc3: Add multi-pd bindings for dwc3 qcom

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Date:   Mon, 25 Oct 2021 14:37:29 +0530
From:   Sandeep Maheswaram <quic_c_sanm@...cinc.com>
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>,
        <quic_pkondeti@...cinc.com>, <quic_ppratap@...cinc.com>,
        Sandeep Maheswaram <quic_c_sanm@...cinc.com>
Subject: [PATCH v2 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 <quic_c_sanm@...cinc.com>
---
v2:
Make cx domain mandatory.

 Documentation/devicetree/bindings/usb/qcom,dwc3.yaml | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
index 2bdaba0..fd595a8 100644
--- a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
@@ -42,7 +42,13 @@ properties:
 
   power-domains:
     description: specifies a phandle to PM domain provider node
-    maxItems: 1
+    minItems: 2
+    items:
+      - description: cx power domain
+      - description: USB gdsc power domain
+
+  required-opps:
+    description: specifies the performance state to power domain
 
   clocks:
     description:
-- 
2.7.4