linux-kernel - [PATCH 2/2] arm64: dts: qcom: msm8996: add interconnect paths to USB2 controller

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Message-Id: <20251002-fix-msm8996-icc-v1-2-a36a05d1f869@oss.qualcomm.com>
Date: Thu, 02 Oct 2025 11:53:01 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Georgi Djakov <djakov@...nel.org>,
        Yassine Oudjana <y.oudjana@...tonmail.com>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH 2/2] arm64: dts: qcom: msm8996: add interconnect paths to
 USB2 controller

Add the missing interconnects to the USB2 host. The Fixes tag points to
the commit which broke probing of the USB host on that platform.

Fixes: 130733a10079 ("interconnect: qcom: msm8996: Promote to core_initcall")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>

---
Note: without the previous patch applying this one can result in the
kernel stuck at booting because of the EPROBE_DEFER loop. I suggest
applying them through the same tree in order to make sure that the tree
is not broken (or using an immutable tag for the icc commit).
---
 arch/arm64/boot/dts/qcom/msm8996.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
index c75b522f6eba66afeb71be5d81624183641bde71..33608b1d7d060b0a614357929eb3404bab46ecb6 100644
--- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
@@ -3496,6 +3496,9 @@ usb2: usb@...8800 {
 					  <&gcc GCC_USB20_MASTER_CLK>;
 			assigned-clock-rates = <19200000>, <60000000>;
 
+			interconnects = <&pnoc MASTER_USB_HS &bimc SLAVE_EBI_CH0>,
+					<&bimc MASTER_AMPSS_M0 &pnoc SLAVE_USB_HS>;
+			interconnect-names = "usb-ddr", "apps-usb";
 			power-domains = <&gcc USB30_GDSC>;
 			qcom,select-utmi-as-pipe-clk;
 			status = "disabled";

-- 
2.47.3