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Mon, 06 Jul 2026 06:57:55 -0700 (PDT) Received: from hu-pkondeti-hyd.qualcomm.com ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-30f3c8b19c7sm36304130eec.4.2026.07.06.06.57.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Jul 2026 06:57:55 -0700 (PDT) Date: Mon, 6 Jul 2026 19:27:48 +0530 From: Pavan Kondeti To: Shawn Guo Cc: Bjorn Andersson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Konrad Dybcio , Dmitry Baryshkov , Bartosz Golaszewski , Deepti Jaggi , Harshal Dev , Herbert Xu , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 RESEND 3/5] arm64: dts: qcom: Add device tree for Nord SA8797P SoC Message-ID: References: <20260526051300.1669201-1-shengchao.guo@oss.qualcomm.com> <20260526051300.1669201-4-shengchao.guo@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260526051300.1669201-4-shengchao.guo@oss.qualcomm.com> X-Proofpoint-GUID: x0TWjH_K_rrWiL6aeOdO10wnZNvcMel_ X-Proofpoint-ORIG-GUID: x0TWjH_K_rrWiL6aeOdO10wnZNvcMel_ X-Authority-Analysis: v=2.4 cv=CPYamxrD c=1 sm=1 tr=0 ts=6a4bb464 cx=c_pps a=rz3CxIlbcmazkYymdCej/Q==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=kj9zAlcOel0A:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=DDZHeiFfpNG52dTxXqoA:9 a=CjuIK1q_8ugA:10 a=bFCP_H2QrGi7Okbo017w:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzA2MDE0MiBTYWx0ZWRfX8Xqu3ZILI/QV B4q3gZZnNKvWXhE+UygynKJluKyRWzUZOZIiMByH46oqEkN4b1S6zrW9NlPbhRjmZptqjrWNG4u djL8dDPlXN5srgtfi9jH7l+1PiDexj/jpuvcYTHnu7PDhWr6HyVgT8ZbM8MxzhLQqSf7jXDMKcv HZkp9zg3gsoivKlQkdzqYS53f5UPdwxi26ruJoo39v13YJJFkHp9yziLApnaxVgj96dYaocpY1j unYYxA273r1oOu3jqVc6DbSHg+FuLc2v8z9jFDFMRZYPUVgfiPAA6ZuC0qAaU6AkhykRjl/sTjz euGOsZis55Nn++xRV2u95XlCaPnSrRnlAInOPposT+O1z5Y4AHZk3bIz/KrWON0XQF3xBa2BGDe ndqfGxi8WdkGInFS/JCX4dXHhJ/QmpO/Le07/UOyN3ucaXRv9H37llAWlnPZFg5tIwj1L49NGKT AuWJ+18LUky4jTm4CJA== X-Proofpoint-Spam-Info: AW1haW4tMjYwNzA2MDE0MiBTYWx0ZWRfXyey9rbhKTKo4 oZ8tNHA1l/7vA4Cb29EdodUZEaxm8CXtDmPxx3UUW3Ax38VBR8rqBVC3C9YADGFbS43IOAI4lim 1gd05pTT+G89e37IIC10OPvSNDKsx0A= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-06_01,2026-07-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 adultscore=0 clxscore=1015 priorityscore=1501 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 lowpriorityscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607060142 On Tue, May 26, 2026 at 01:12:58PM +0800, Shawn Guo wrote: > diff --git a/arch/arm64/boot/dts/qcom/scmi-common.dtsi b/arch/arm64/boot/dts/qcom/scmi-common.dtsi > new file mode 100644 > index 000000000000..0c7ffe9e415c > --- /dev/null > +++ b/arch/arm64/boot/dts/qcom/scmi-common.dtsi > @@ -0,0 +1,1918 @@ > +// SPDX-License-Identifier: BSD-3-Clause > +/* > + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. > + */ > + > +#include > + > +&firmware { > + scmi0: scmi-0 { > + compatible = "qcom,scmi-smc"; > + arm,smc-id = <0xc6008012>; > + shmem = <&shmem0>; > + interrupts = ; > + interrupt-names = "a2p"; I believe this interrupt source is GearVM firmware via Gunyah's doorbell, correct? How do we know that scmi0 instance's interrupt is GIC_SPI#963? Are these assumed to be constant/fixed through out the life time of this SoC? > + #address-cells = <1>; > + #size-cells = <0>; > + arm,max-msg = <10>; > + arm,max-msg-size = <256>; > + arm,max-rx-timeout-ms = <3000>; > + > + status = "disabled"; > + > + scmi0_pd: protocol@11 { > + reg = <0x11>; > + #power-domain-cells = <1>; > + }; > + > + scmi0_dvfs: protocol@13 { > + reg = <0x13>; > + #power-domain-cells = <1>; > + }; > + > + scmi0_rst: protocol@16 { > + reg = <0x16>; > + #reset-cells = <1>; > + }; > + }; > +