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Thu, 28 May 2026 08:26:10 -0500 Received: from [10.24.72.113] (akashdeep-hp-z2-tower-g5-workstation.dhcp.ti.com [10.24.72.113]) by lelvem-mr05.itg.ti.com (8.18.1/8.18.1) with ESMTP id 64SDQ7vV2129448; Thu, 28 May 2026 08:26:08 -0500 Message-ID: <9e5b46b8-cf04-4b9b-9e33-2cf27802690d@ti.com> Date: Thu, 28 May 2026 18:56:06 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 1/1] cpufreq: ti: Add EPROBE_DEFER for K3 SoCs To: Zhongqiu Han , , , , , , , CC: , , References: <20260527062534.1808422-1-a-kaur@ti.com> <20260527062534.1808422-2-a-kaur@ti.com> Content-Language: en-US From: Akashdeep Kaur In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000075EF:EE_|SA1PR10MB7634:EE_ X-MS-Office365-Filtering-Correlation-Id: 8d17669c-a20d-44b5-2d06-08debcbcb0b3 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|36860700016|82310400026|1800799024|22082099003|18002099003|56012099006|4143699003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:198.47.23.195;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:lewvzet201.ext.ti.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(376014)(36860700016)(82310400026)(1800799024)(22082099003)(18002099003)(56012099006)(4143699003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: Y7C/Lfs+bW7sY73MEf9je7Jfl3ggFiv0wONXX1RZ//gRw66uT8lfxsGnJ7EE5wwU3orRvk+Cth3Y4PU0DM3/mkSYnDsrP71d5OwReL3/BWGF8LQ6Jta/QbhKFWEfu7pPIEmov1PiD4G07W7c25m1HYjwUM8/aN7fp63/hMQndhzGxsMfEXtGreAUdcB6V9gWM8qi7vHLEP+hh4oomboWeAUcirgBNyGXVpWejv21YSZmptUUp4+IciznQBAcrvw/W8xpLvx27im1VltvE8Id027ZHM1rC2i2nf3wUUIs4gyFSSzjfPZWxuTRnji2v+wyfouDxSnTWgNEG0BxusLrWRM7vsF5sHlqWMzsPp72/y/DPpW9HoBc08jXpOElmfz/F5CbxlTTpzm/LpMGnpE0AhWtiSqofCdlhZYNptJBJkOSXTuuUcYb1nTHysBIv9tv X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 May 2026 13:26:13.6280 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8d17669c-a20d-44b5-2d06-08debcbcb0b3 X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.23.195];Helo=[lewvzet201.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000075EF.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR10MB7634 Hi Han, On 27/05/26 13:29, Zhongqiu Han wrote: > On 5/27/2026 2:25 PM, Akashdeep Kaur wrote: >> On K3 SoCs, ti-cpufreq relies on k3-socinfo to register the SoC >> device before soc_device_match() can return valid revision >> information. If ti-cpufreq probes before k3-socinfo, >> soc_device_match() returns NULL, leading to incorrect CPU frequency ... >>       u32 revision; >>       int ret; >> @@ -441,6 +442,15 @@ static int ti_cpufreq_get_rev(struct >> ti_cpufreq_data *opp_data, >>            */ >>           *revision_value = 0x1; >>           goto done; >> +    } else { >> +        /* Check if we're on a K3 SoC that needs k3-socinfo */ >> +        match = dev_get_platdata(dev); > > > Hi Akashdeep, > > Just to double-check: here 'dev' is 'opp_data->cpu_dev' > (get_cpu_device(0)), not 'pdev->dev', right? > > In that case, would the 'struct of_device_id' match data actually be > associated with the ti-cpufreq platform device rather than the CPU > device? > > Do you think it would be reasonable to add a boolean > `needs_k3_socinfo` flag to `struct ti_cpufreq_soc_data` (similar to the > existing multi_regulator pattern), and check > `opp_data->soc_data->needs_k3_socinfo` instead? Good catch!! I think the approach to use needs_k3_socinfo is good, i have respinned the series with this approach, please take a look. > > > >> +        if (match && !strncmp(match->compatible, "ti,am62", 7)) { >> +            /* SoC info not ready yet, defer */ >> +            dev_dbg(opp_data->cpu_dev, >> +                "Failed to get SoC info, deferring probe\n"); >> +            return -EPROBE_DEFER; >> +        } >>       } >>       ret = regmap_read(opp_data->syscon, opp_data->soc_data->rev_offset, > > Thanks and Regards, Akashdeep Kaur