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Mon, 06 Jul 2026 19:15:48 -0700 (PDT) X-Received: by 2002:a05:6a20:5491:b0:3b4:8bc6:138 with SMTP id adf61e73a8af0-3c08ed1f10amr4146347637.23.1783390547600; Mon, 06 Jul 2026 19:15:47 -0700 (PDT) Received: from [192.168.50.84] ([76.176.60.246]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-31174a92eccsm2175748eec.23.2026.07.06.19.15.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 06 Jul 2026 19:15:47 -0700 (PDT) Message-ID: <46af10c8-8400-4131-ac87-b3f17350bb65@oss.qualcomm.com> Date: Mon, 6 Jul 2026 19:15:15 -0700 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 RESEND 3/5] arm64: dts: qcom: Add device tree for Nord SA8797P SoC To: Pavan Kondeti , Shawn Guo Cc: Bjorn Andersson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Konrad Dybcio , Dmitry Baryshkov , Bartosz Golaszewski , Harshal Dev , Herbert Xu , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260526051300.1669201-1-shengchao.guo@oss.qualcomm.com> <20260526051300.1669201-4-shengchao.guo@oss.qualcomm.com> Content-Language: en-US From: Deepti Jaggi In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzA3MDAxOSBTYWx0ZWRfXySpLQhNiCe93 i46+ys7r57WhEQLPtMEcpuFbs1eNR0Ck/2LQLACMxIBw76QvGotZQIMG0dBWQ3eu984spfOIf15 TkDmRthdVzuRKK6pHAx5NseEfPhgYuzr13Cd0FOKewdXsFZY+qgJy0OhZMXnSwPXCDb9Ot33zGI s5jNqGg9tf+NF+pLVxlRilVaC4ndJsF2OeOEgQdrvxxIsueWhoPAFX0STfcCoWtVV9RMKvNBHHU pAQWW6+gFMBlqDHoRtZfvn1w0ebYYzilQ7TaM9ykSb0i6KtPwh7phJbMJscsNm+rEr4uefkMlYZ sDY1eVF8NX5CTd5wE44t3uIgvYbxsybZA9e0oEApAhx/1b2zNKwSvY+QFc0MoBbUd7sNPcFHLY6 n4oJOXZxrGMtEyHmJd4AVVipSLf1uziP1rACjuiSdMpWxqE58Vj6o68Lv1Hhuv3rzvzPCsJrxpb g0K0jrep9K0LW1KCzLw== X-Proofpoint-Spam-Info: AW1haW4tMjYwNzA3MDAxOSBTYWx0ZWRfX6KnT0dQO4APP j4QvrOlyOMynN8BMMTAIeZdSh980bES8BwPJH74BBjzQsLmQQSKH2Vy3ugQsgJn1aLgoLSqDOO9 p4li9XdZJ4rH9cIopTaEtTRKZ1B802Q= X-Proofpoint-GUID: sDgpdlU58v2VPInxrghFNmC9Ac9mtU82 X-Proofpoint-ORIG-GUID: sDgpdlU58v2VPInxrghFNmC9Ac9mtU82 X-Authority-Analysis: v=2.4 cv=OKcXGyaB c=1 sm=1 tr=0 ts=6a4c6155 cx=c_pps a=Qgeoaf8Lrialg5Z894R3/Q==:117 a=0ISbvMpsx/t7i6H15JfNAA==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=fFv3aZm-RBs7SO91p5wA:9 a=QEXdDO2ut3YA:10 a=x9snwWr2DeNwDh03kgHS:22 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_03,2026-07-06_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 adultscore=0 malwarescore=0 clxscore=1011 suspectscore=0 spamscore=0 phishscore=0 priorityscore=1501 impostorscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607070019 On 7/6/2026 6:57 AM, Pavan Kondeti wrote: > 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? Yes, this interrupt is a Gunyah Rx doorbell VIRQ for SCMI a2p completion from GearVM to Linux. It is allocated by Gunyah RM from the platform's virtual IRQ range and patched into the DTB by Linux bootloader at boot stage. > >> + #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>; >> + }; >> + }; >> + Thanks, Deepti