From 6a24d5f038d5e366df5e0df7686052cb9b419404 Mon Sep 17 00:00:00 2001 From: Bibek Kumar Patro Date: Tue, 26 May 2026 20:05:18 +0530 Subject: [PATCH] FROMLIST: arm64: dts: qcom: lemans: Add GEM_NOC interconnect for adreno SMMU On Lemans platforms, the Adreno SMMU requires a bandwidth vote on the GEM_NOC path (MASTER_GPU_TCU -> SLAVE_EBI1) before its registers are accessible. Without this vote, the SMMU may become unreachable, leading to intermittent probe failures and runtime issues. Add the required interconnect to ensure reliable register access. Link: https://lore.kernel.org/all/20260526-smmu_interconnect_addition-v2-0-2a6d8ca30d63@oss.qualcomm.com/ Signed-off-by: Bibek Kumar Patro --- arch/arm64/boot/dts/qcom/lemans.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/lemans.dtsi b/arch/arm64/boot/dts/qcom/lemans.dtsi index d9c31610a3ac6..02b141e406ce8 100644 --- a/arch/arm64/boot/dts/qcom/lemans.dtsi +++ b/arch/arm64/boot/dts/qcom/lemans.dtsi @@ -4456,6 +4456,8 @@ , , ; + interconnects = <&gem_noc MASTER_GPU_TCU QCOM_ICC_TAG_ALWAYS + &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>; }; serdes0: phy@8901000 {