From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 469ECCA6002 for ; Wed, 7 Oct 2026 16:17:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:CC:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=zlMIijXg4iz/VjoqoLtJH7VuKTZAs1I1kQSEBn3X8VY=; b=Cwy0AzwdEWwLDgwsRhwyoEBnGJ 0iCCHA9y82qcKYbLPFQBFmDOKflNUTtp4P6LjRQ0W4umR1NxLGw7A5unkWhWy1Qu85+c6lVjzJhcZ eXJi/oAjuF2/qU4DjfaKLer+suAsK026MotkBO/SF36ELIIIXx5APaAfSSALxubZdDxBpnjpbfQWo AfVrUZKYRNPVA6cB4n6Wj6YO7m7hqzZBRRXjHhfG+nD8bxzRcAklPyOpwh9xKG9ANgJeK8kqwPA0l LqkggGQ/5APTq3dcQxEEr6FKIIvqR/Z9J5MW63O5h1QW5Js0O3FPO2l0861Ot1GLPUWkpfDg1v129 THTt/KTg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xEUKe-00000002l3I-2CmJ; Wed, 07 Oct 2026 16:17:28 +0000 Received: from mx0b-0002e601.pphosted.com ([148.163.154.28]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xEUKb-00000002l2Z-1RQ9 for linux-arm-kernel@lists.infradead.org; Wed, 07 Oct 2026 16:17:27 +0000 Received: from pps.filterd (m0374955.ppops.net [127.0.0.1]) by mx0b-0002e601.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 697Ewq9C1587989; Wed, 7 Oct 2026 11:17:17 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s= proofpoint-05-2026; bh=zlMIijXg4iz/VjoqoLtJH7VuKTZAs1I1kQSEBn3X8 VY=; b=IRBoWRyriHI4Rj0rAGSDKHSWiAKX4j3iq+2JIftVZ8qyeW+glOkaOvBX9 JFSeH6wrC5n2kEgr4J9BcB98pk/aLHd0o4HGIseC2yYJD61Mnw7VvLijkjUj0RFj iFyhmkopRLEiBTfgNc7Rxg1bhUaxKPUIxwvUqF5ScGNrQHU30SSdgtC7fzqNpXOG 0wmsZ6DjMrBoH0JlmO17gs13MXGmXhSseMgW7zMgJCeh4+IrqeFtwDTn2FL5sY+0 9H1aUK6HwEcQ9UHAj35QdPyC2TlAbHj3i2qI02L8iYnprE4ZmjlAZ/xZP2j1FTQX kvGZzw6I3W0kzKbaU1vJ3aCNoHSZA== Received: from sj2pr03cu001.outbound.protection.outlook.com (mail-westusazon11012042.outbound.protection.outlook.com [52.101.43.42]) by mx0b-0002e601.pphosted.com (PPS) with ESMTPS id 4h5hw7anf9-1 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Wed, 07 Oct 2026 11:17:16 -0500 (CDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=S+5Q6YpCQ3sS9W3srb+x7QkGqZ0mE5n+eql1lBpbmi/ayD1IdUecBZzzBTJoHdqpn6cAQtNJJ4y5fcfgNRRdkAzhWxs+YvnGsQyQkX8yvORmjOJLmCDWAXrXIt7InE6+mnDG18GQUzZmoVfH9zvCJlIcNnQy2JEtB1D3ecGdm9wmiA4pCDQVsLKDc3VN0piT7JPAcjvcO+RH7pCk1v4UXOtTyHRNl55iQFa+Qr9YvHh6X0QC/xpMART74hS/48DMUqaDtV3Z7+ZQGKzHt/4skHIA0zwEsb87i9xO9jffziDvBTN2EFEMTPf1i0zrd+RpRLNineTF6Dja7NirU+babw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=zlMIijXg4iz/VjoqoLtJH7VuKTZAs1I1kQSEBn3X8VY=; b=XiUKv1EcwH4du3IjBBpvfQ76+m9JYx4COOthCCJhMM1agz6ENklWydlpoO+OfUnLVkwU5efHHBIlXH5TCLaHGwrcK3iJrWHmKK+tUNIAV9uP1sqN5f2t14InmNcTtsyu0XNL7JbjnUaZkDF7QSTFXTnCjYW8C2eOBiBZyUjoj8lNIJxkZHQLjKppTQkuhkdrsydi/kuz60MmSBnXXBRjzg1fCQUfH7RWdRV7W86i2BY4OzQS0ArLAZUn8aU2gOShCKvDSMv4KGDLak/JB/56GOR8gdAlfMM8ajkQ2LbiVVAP8AD3vuA6xdny1jTM937nZDeURDlEh6GKCUD5zw9bFQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 198.47.23.194) smtp.rcpttodomain=vger.kernel.org smtp.mailfrom=ti.com; dmarc=pass (p=quarantine sp=none pct=100) action=none header.from=ti.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ticloud.onmicrosoft.com; s=selector1-ticloud-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=zlMIijXg4iz/VjoqoLtJH7VuKTZAs1I1kQSEBn3X8VY=; b=lxYXY/LdMA8TTXnB2cjFfKF6od9DVH+/pAm2SeWi8oEmigH8AQ/KgM15pslULjSX/zAKkVWAKKNp81brTrYYNkcnZJRxofm68RQ9FErNQ83o8ULFWhll56NQtaXfdW/5tcncv64flpMm70FuQCpqyOvw3HJJkJCM8L84LCi6Dds= Received: from CH2PR18CA0006.namprd18.prod.outlook.com (2603:10b6:610:4f::16) by CH0PR10MB7437.namprd10.prod.outlook.com (2603:10b6:610:193::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.496.14; Wed, 7 Oct 2026 16:17:06 +0000 Received: from CH01EPF000BE943.namprd02.prod.outlook.com (2603:10b6:610:4f:cafe::10) by CH2PR18CA0006.outlook.office365.com (2603:10b6:610:4f::16) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.21.472.20 via Frontend Transport; Wed, 7 Oct 2026 16:17:02 +0000 X-MS-Exchange-Authentication-Results: mx.microsoft.com 1; spf=pass (sender IP is 198.47.23.194) smtp.mailfrom=ti.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=ti.com; Received-SPF: Pass (protection.outlook.com: domain of ti.com designates 198.47.23.194 as permitted sender) receiver=protection.outlook.com; client-ip=198.47.23.194; helo=lewvzet200.ext.ti.com; pr=C Received: from lewvzet200.ext.ti.com (198.47.23.194) by CH01EPF000BE943.mail.protection.outlook.com (10.167.244.135) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.496.14 via Frontend Transport; Wed, 7 Oct 2026 16:17:02 +0000 Received: from DLEE200.ent.ti.com (157.170.170.75) by lewvzet200.ext.ti.com (10.4.14.103) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.45; Wed, 7 Oct 2026 11:16:34 -0500 Received: from DLEE215.ent.ti.com (157.170.170.118) by DLEE200.ent.ti.com (157.170.170.75) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.45; Wed, 7 Oct 2026 11:16:34 -0500 Received: from lelvem-mr06.itg.ti.com (10.180.75.8) by DLEE215.ent.ti.com (157.170.170.118) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.45 via Frontend Transport; Wed, 7 Oct 2026 11:16:34 -0500 Received: from [10.249.32.48] ([10.249.32.48]) by lelvem-mr06.itg.ti.com (8.18.1/8.18.1) with ESMTP id 697GGXGW532431; Wed, 7 Oct 2026 11:16:34 -0500 Message-ID: Date: Wed, 7 Oct 2026 11:16:33 -0500 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] arm64: dts: ti: k3-am62-mcu: Add power-domains property for M4FSS To: Sidd CC: , , , , , , , , References: <20260922171942.201947-1-sid9.karanam@gmail.com> <8cb23b44-027d-4d81-b342-7eaca0248f63@ti.com> Content-Language: en-US From: Andrew Davis In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH01EPF000BE943:EE_|CH0PR10MB7437:EE_ X-MS-Office365-Filtering-Correlation-Id: 63cc698c-0ad1-4d2a-f5ca-08df248e6c04 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|1800799024|82310400026|23010399003|36860700016|10067099003|56012099006|4143699003|6133799003|13003099007|18002099003|22082099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:198.47.23.194;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:lewvzet200.ext.ti.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(376014)(1800799024)(82310400026)(23010399003)(36860700016)(10067099003)(56012099006)(4143699003)(6133799003)(13003099007)(18002099003)(22082099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: abamYXFsLKlWH8GiVmF9OM7XLMkVNej4JjzDn7zXvxzX6Vs3nfRhdWDC+LrAUSSNn3ORnm1o0R7ZgPt7d1DCjAPRPDvAIqwcMQlMAp8t9gCQJqCE3Z3WPwAW0sqpGamxNVuzydCyui19bRGGMv9ySmk/Zq32O2KoeesA5QUo1GRb1FLlwUJWIbTokocu/M3AU4w5+sboi0LSp0ejV6VNV1UIynEBDi1P0L1ZGWynGZpyFKFX1hQ+pEiJfmUkX/cpykcSxoXKbhTR+8iIjJh6T7hvbiRE1jxkY/0rB4pbVp31BhGuuerMR2lqvA0/MfExWErU2oBrViUANUQcDMJLWh+Z8G4zZ2q380U7ZKGbl3updKpp3EJKDTSMct0iGgOynfisKn5zR+yslv0XyWVoprIP0iIpYjaQoHIG/IImSOlXMSvxa7s57MilCQ+h26RU X-Exchange-RoutingPolicyChecked: PHDthqwop/rv3zP0GDCaSB4xWoNDHgp+1pJB4L4SHNZhrhtLSJxlHjca1ZqYEzmDP3Hwy2Sw8LwOt8/bzsBenVwh04ch61nHnllR2WU0H5SkyRmA+7p7UlLVfITl6q5Kx86WAPaygiCvLyeNuSMhsYe9WSmY2TBJdPk5lyy0vnpPqh73+ojSL8/ZYRNGE6X+DeZ8XyPtWtfukyvH9Vi46T63b4R37iC1nuxuFaDwzRR8negoO+0fealY3uZe3C8xtwXpRMvc6HTW8V08bPpvbR0dV0l409+R6oM8bZdjKc7BEvZ9l9xfmmCnGui6LEwMD7qC7O4a92Q2gYzdd67Opg== X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Oct 2026 16:17:02.5137 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 63cc698c-0ad1-4d2a-f5ca-08df248e6c04 X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.23.194];Helo=[lewvzet200.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: CH01EPF000BE943.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH0PR10MB7437 X-Authority-Analysis: v=2.4 cv=as8nmiZV c=1 sm=1 tr=0 ts=6ac6708c cx=c_pps a=vwzr6GK/qOZR+/kkcyjBFA==:117 a=WotqVVQAdb04rnGuttW3Kw==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s63m1ICgrNkA:10 a=AlMIdn_sM9wA:10 a=VkNPw1HP01LnGYTKEx00:22 a=Z8NIEmU8O1QQgoT56wFK:22 a=fPAWb5peG099m5CrUpKH:22 a=9AdMxfjQAAAA:20 a=sozttTNsAAAA:8 a=pGLkceISAAAA:8 a=vYBDPz2uy0ReE4h6JmsA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=bn7x_FpfJtc3yKQXRW3z:22 a=bA3UWDv6hWIuX7UZL3qL:22 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDA3MDA2NCBTYWx0ZWRfX0gHUvBdzFRCL 23K+1K5kkYpHV9MAmBR41BqEagyq3QvRPieqrUX7V484Hh0TTjvdoh+bd0wJ7IjXZERw8DnjBnE M4eFqCWB4744CsJmDWfERi1f30reJt8= X-Proofpoint-ORIG-GUID: hSfS5IiDVPfmHrf-wdTphxyMs0bAobEn X-Proofpoint-GUID: hSfS5IiDVPfmHrf-wdTphxyMs0bAobEn X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDA3MDA2NCBTYWx0ZWRfX/t2ukLZBhy2Z cwNlVoYQ9WgBMiTaxHC6UQJVmDtZc9QyIiTu9m6+/zPhtxChQPFESMhrXRHIUaIE20/5A5YnVZu 2gZEEb5say6EETyR6V/zZXB+5vCzSLhEeO/+Ykdi9cFMTjEFZBjYdnTvXQ99mxyp9f5Ury17J6F cjL3KBfqLxlBCcfBsXNAMbArTByoY63uaGuL/kKjXleMY43dRCwuGpXNLh/BhmG+hlwOW96KL0v l+m35NMGYADOEKCttqWQ7+pqb9ZXdDOqXILyuFqY7vxtGofpA6r1W84P30xCeA9XA95tW0xq3Bx VrJwGZwx/hdfYFS+FsxqhsJq/NnITFowzmDVms5OHk3SniGzUoF87zdw8yOfoXcvtar1yHx3hmT f4lUb1dvS2j3fdEO/ZW7Jja5EV+g88U1I/LADDqcTsZQMRCv6LxkPG6ivHyXIC2jyJKtM2PISaR ZBcIlySWnnLIDN3W90A== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-07_05,2026-10-06_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 clxscore=1015 suspectscore=0 adultscore=0 malwarescore=0 priorityscore=1501 lowpriorityscore=0 impostorscore=0 spamscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2610070064 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261007_091725_531805_314EDFB6 X-CRM114-Status: GOOD ( 25.23 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 10/4/26 10:39 AM, Sidd wrote: >> Anyway, the reason we don't use the normal "power-domains", and instead manage >> the power using `ti,sci-dev-id`, is because the normal power domain framework >> has a nasty habit of unconditionally powering up devices before the driver can >> probe. Which in the case of remoteprocs can cause the core to start running >> and executing random data. > > Oh I was not aware of this issue, seemed logical and a straightforward > issue to me, I'll drop this patch then. > I also figured this would in turn nicely move into wrapping all ti sci > handle's device ops through pmruntime (such as get_device and > put_device functions) but I believe that won't work as well. I think factoring out the TI-SCI handle ops is still a good idea, just not using pmruntime functions yet. We are discussing internally about how we might enhance the PM framework to allow for marking these devices so they are not auto-started but still allow manually powering them using the normal PM functions. Will keep you posted, or feel free to think up and suggest any better ideas. Andrew > > > * Power up subsystem > > * Set reset line for core > > * Power up the core > > * Setup the core (load firmware and set boot address) > > * Release reset line for core to start it running > > Right, I see, thanks for the input :) > > Thanks, > Siddharth Karanam > > On Tue, Sep 29, 2026 at 10:09 PM Andrew Davis wrote: >> >> On 9/22/26 12:19 PM, Siddharth Karanam wrote: >>> Assign the power domain to the MCU M4FSS (Cortex-M4F) node by following >>> the device ids info published in TI-SCI public documentation. >>> >>> This will be useful in future patches that will attempt at abstracting >>> ti_sci_dev_ops's calls such as get_device and put_device via pm_runtime >>> calls. >>> >>> Signed-off-by: Siddharth Karanam >>> --- >>> arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi | 1 + >>> 1 file changed, 1 insertion(+) >>> >>> diff --git a/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi >>> index 68e906796aefe..1ae0870893c16 100644 >>> --- a/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi >>> +++ b/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi >>> @@ -181,6 +181,7 @@ mcu_m4fss: m4fss@5000000 { >>> <0x00 0x5040000 0x00 0x10000>; >>> reg-names = "iram", "dram"; >>> resets = <&k3_reset 9 1>; >>> + power-domains = <&k3_pds 7 TI_SCI_PD_EXCLUSIVE>; >> >> The surrounding M4 subsystem's power domain is 7, but the core's power domain number >> is 9 (see below in `ti,sci-dev-id`). Enabling 9 should also enable 7 as it is a >> dependency. We probably should have modeled the M4 in DT the way we did the R5[0]. >> With the core being a subnode of the subsystem. Then 7 goes in subsystem and 9 >> goes in the core's subnode. >> >> Anyway, the reason we don't use the normal "power-domains", and instead manage >> the power using `ti,sci-dev-id`, is because the normal power domain framework >> has a nasty habit of unconditionally powering up devices before the driver can >> probe. Which in the case of remoteprocs can cause the core to start running >> and executing random data. We have to do things in order, >> >> * Power up subsystem >> * Set reset line for core >> * Power up the core >> * Setup the core (load firmware and set boot address) >> * Release reset line for core to start it running >> >> Andrew >> >> [0] https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi#L178 >> >>> firmware-name = "am62-mcu-m4f0_0-fw"; >>> ti,sci = <&dmsc>; >>> ti,sci-dev-id = <9>; >>