linux-kernel - [PATCH v3 4/9] arm64: dts: qcom: sm8250: add a link between DWC3 and QMP PHY

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Date: Mon, 01 Apr 2024 23:33:43 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Luca Weiss <luca.weiss@...rphone.com>, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Subject: [PATCH v3 4/9] arm64: dts: qcom: sm8250: add a link between DWC3
 and QMP PHY

The SuperSpeed signals originate from the DWC3 host controller and then
are routed through the Combo QMP PHY, where they are multiplexed with
the DisplayPort signals. Add corresponding OF graph link.

Reported-by: Luca Weiss <luca.weiss@...rphone.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index 440bbb89bf8a..cfc07dd9d0ec 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -3917,6 +3917,10 @@ port@0 {
 
 				port@1 {
 					reg = <1>;
+
+					usb_1_qmpphy_usb_ss_in: endpoint {
+						remote-endpoint = <&usb_1_dwc3_ss_out>;
+					};
 				};
 
 				port@2 {
@@ -4195,8 +4199,24 @@ usb_1_dwc3: usb@...0000 {
 				phys = <&usb_1_hsphy>, <&usb_1_qmpphy QMP_USB43DP_USB3_PHY>;
 				phy-names = "usb2-phy", "usb3-phy";
 
-				port {
-					usb_1_dwc3_hs_out: endpoint {};
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+
+						usb_1_dwc3_hs_out: endpoint {
+						};
+					};
+
+					port@1 {
+						reg = <1>;
+
+						usb_1_dwc3_ss_out: endpoint {
+							remote-endpoint = <&usb_1_qmpphy_usb_ss_in>;
+						};
+					};
 				};
 			};
 		};

-- 
2.39.2