From nobody Fri Dec 26 05:36:19 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EA7E039FC1 for ; Tue, 9 Jan 2024 15:21:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="NcDQdF9l" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1704813662; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type; bh=vn1ce8hywqQSUdzE/tq3PAQDOHuc7M+muFOo7RqI5C0=; b=NcDQdF9l8+9zIF96irLq9TVr9K4MG+GNybtjRs3eSA6O7uXu7A3nkBXZvMJ1r/5IOGWcqF lwXopGYW6TLi/DIEmMO0yEFHnp2PpI0+yPxxfhkrb01f/UJk5PZLgQdLhuFj/H5WblgAhM 5+fuk+Tngzzicz+mf55CR3qL3mclhg4= Received: from mail-qk1-f198.google.com (mail-qk1-f198.google.com [209.85.222.198]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-37-NRbeGThqMJuyX5xv38JAEg-1; Tue, 09 Jan 2024 10:21:01 -0500 X-MC-Unique: NRbeGThqMJuyX5xv38JAEg-1 Received: by mail-qk1-f198.google.com with SMTP id af79cd13be357-78330275051so60720085a.3 for ; Tue, 09 Jan 2024 07:21:01 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1704813661; x=1705418461; h=user-agent:content-disposition:mime-version:message-id:subject:cc :to:from:date:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=vn1ce8hywqQSUdzE/tq3PAQDOHuc7M+muFOo7RqI5C0=; b=El20zD/qpxK9lL48iq830NdxwNlKEsTiUPLZ56xndNyegD2m6Q6H6edifB1WWiBks8 qfXTOaKHX/v7zmLoB1xeNjmE8dxp8F8+Sew8TTt9/hk94axV2EiNTpF5EtVtJP8Z9SU/ 8IcrLY3/A+eafzlEzHmLGML6Rwgh9drJqAByDjRWOFge9yLEeQz/VyGcAqVYVP6dNNwy /3ZO0Wn0tCM9JDbymeevfYdwVS0vtyhK1g5eyz16drs4SfYocSaWlkLYIHRw0HJSNSPw CZNssRRmSZ29cKpeMSVUx//z1OXyy2wHlrOppoui0LLqo7OwmuvIrrfJN5w6va2D/ILv d06Q== X-Gm-Message-State: AOJu0Yxf/AMpMpzdTOS9465ZULQq/E+Wz0JmDleyJ/6c3PdnGFYESLgQ zzJm67Ssxa3KisEMco+lCSErEmmnb2c0MemasS3QOKpf4nFpX40GBAMb4rmiBMVM9uB1YEvA7rM GgSoe0+2MrqGpK3m8WpklEFb4UM4+rIHl X-Received: by 2002:a05:620a:4008:b0:783:314c:48c4 with SMTP id h8-20020a05620a400800b00783314c48c4mr605886qko.96.1704813660942; Tue, 09 Jan 2024 07:21:00 -0800 (PST) X-Google-Smtp-Source: AGHT+IEn8hS9/EPAk99SwHPz6Ctm7qGK+fZo5cmWdV36DyjYJZKlNIvEBawV15ZkWLFEopPcYMNuVQ== X-Received: by 2002:a05:620a:4008:b0:783:314c:48c4 with SMTP id h8-20020a05620a400800b00783314c48c4mr605875qko.96.1704813660554; Tue, 09 Jan 2024 07:21:00 -0800 (PST) Received: from fedora ([174.91.39.234]) by smtp.gmail.com with ESMTPSA id h2-20020a05620a13e200b007832016a732sm874832qkl.83.2024.01.09.07.20.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Jan 2024 07:21:00 -0800 (PST) Date: Tue, 9 Jan 2024 10:20:50 -0500 From: Lucas Karpinski To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] arm64: dts: qcom: sa8540p-ride: disable pcie2a node Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline User-Agent: NeoMutt/20231103 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" pcie2a and pcie3a both cause interrupt storms to occur. However, when both are enabled simultaneously, the two combined interrupt storms will lead to rcu stalls. Red Hat is the only company still using this board and since we still need pcie3a, just disable pcie2a. Signed-off-by: Lucas Karpinski Reviewed-by: Brian Masney --- v2: - don't remove the entire pcie2a node, just set status to disabled. - update commit message. arch/arm64/boot/dts/qcom/sa8540p-ride.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts b/arch/arm64/boot/dt= s/qcom/sa8540p-ride.dts index b04f72ec097c..177b9dad6ff7 100644 --- a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts +++ b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts @@ -376,14 +376,14 @@ &pcie2a { pinctrl-names =3D "default"; pinctrl-0 =3D <&pcie2a_default>; =20 - status =3D "okay"; + status =3D "disabled"; }; =20 &pcie2a_phy { vdda-phy-supply =3D <&vreg_l11a>; vdda-pll-supply =3D <&vreg_l3a>; =20 - status =3D "okay"; + status =3D "disabled"; }; =20 &pcie3a { --=20 2.43.0