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Tue, 3 Mar 2026 14:52:27 -0600 From: Andrew Davis To: Nishanth Menon , Vignesh Raghavendra , "Tero Kristo" , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley CC: , , , Andrew Davis Subject: [PATCH 2/2] arm64: dts: ti: k3-j721s2: Make MAIN domain system control bus a simple-bus Date: Tue, 3 Mar 2026 14:52:24 -0600 Message-ID: <20260303205224.108217-2-afd@ti.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20260303205224.108217-1-afd@ti.com> References: <20260303205224.108217-1-afd@ti.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000066E6:EE_|IA0PR10MB7350:EE_ X-MS-Office365-Filtering-Correlation-Id: 7995074b-34ed-400c-b235-08de7966ceae X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|36860700013|34020700016|82310400026; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:198.47.21.194;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:flwvzet200.ext.ti.com;PTR:ErrorRetry;CAT:NONE;SFS:(13230040)(1800799024)(376014)(36860700013)(34020700016)(82310400026);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: H9xB0Il6na6TyDr5VRJoP37AKxOfzsAi0UxlYLocPb5EywXfg/XhshtmG05ZtbmLxgx8l+QvFZjRF0064OSE6GWs/yhsTY9FNufV7coyVaeXJlKYCoRIkSYzWuPjnzQY0wiSTvb771WsDCLZeLdyqndmgZlfIsQD+kM9qrW1WPizB1p3YrXKQ14V8/uqW2SbRbn91ssQiXGU5sV5sZxU8isDNYBhhhnKokfHoUQnJrB6QthBBuSnZrCEQQcp3kYmB4gTUj5+OTpwGD/Nhdh6V1olcv7AaUv3j84Ne2KgP8GjMEbdpqlP7YXPoiAKgfN7q+NAmXM/GONm/Qo6M3aNMqUTmV+dKHpzSP1HDOS+B9ur2qm8ugX/phx4x0evnbqVkMP7U8Ns1yIXXZ04yb9meUszIVYVuowNaShX5nr6ge7PLqrdDjY837LH3VKPt6FU X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Mar 2026 20:52:39.3060 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7995074b-34ed-400c-b235-08de7966ceae X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.21.194];Helo=[flwvzet200.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000066E6.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA0PR10MB7350 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260303_125246_776350_53F1164B X-CRM114-Status: GOOD ( 12.74 ) 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 This node describes a memory address range containing several sub-regions with control registers for various IP in the MAIN domain of this SoC. It was described as a "ti,j721e-system-controller" but this is a J721S2 SoC with is not compatible with the system controller region found in J721e. No project consuming this DT has been found that makes use of the syscon compatible for this region, to prevent any from using this node like a generic syscon region in the future, make this a normal simple-bus as it should have been from the start. Signed-off-by: Andrew Davis --- arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi index 80c51b11ac9fa..774958aca880e 100644 --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi @@ -37,9 +37,8 @@ l3cache-sram@200000 { }; }; - scm_conf: syscon@104000 { - compatible = "ti,j721e-system-controller", "syscon", "simple-mfd"; - reg = <0x00 0x00104000 0x00 0x18000>; + scm_conf: bus@104000 { + compatible = "simple-bus"; #address-cells = <1>; #size-cells = <1>; ranges = <0x00 0x00 0x00104000 0x18000>; -- 2.39.2