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Wed, 27 May 2026 01:25:43 -0500 From: Akashdeep Kaur To: , , , , , , CC: , , , Subject: [PATCH v3 1/1] cpufreq: ti: Add EPROBE_DEFER for K3 SoCs Date: Wed, 27 May 2026 11:55:34 +0530 Message-ID: <20260527062534.1808422-2-a-kaur@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260527062534.1808422-1-a-kaur@ti.com> References: <20260527062534.1808422-1-a-kaur@ti.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA2PEPF00003F68:EE_|LVTPR10MB997842:EE_ X-MS-Office365-Filtering-Correlation-Id: d839ce44-350a-4fe1-2a5e-08debbb8caae X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700016|376014|1800799024|82310400026|18002099003|22082099003|56012099006; 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)(36860700016)(376014)(1800799024)(82310400026)(18002099003)(22082099003)(56012099006);DIR:OUT;SFP:1101; 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charset="utf-8" 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 scaling behavior. Defer probe when k3-socinfo hasn't registered the SoC device yet. Signed-off-by: Akashdeep Kaur --- drivers/cpufreq/ti-cpufreq.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c index a01abc1622eb..72832898f3f5 100644 --- a/drivers/cpufreq/ti-cpufreq.c +++ b/drivers/cpufreq/ti-cpufreq.c @@ -429,6 +429,7 @@ static int ti_cpufreq_get_efuse(struct ti_cpufreq_data = *opp_data, static int ti_cpufreq_get_rev(struct ti_cpufreq_data *opp_data, u32 *revision_value) { + const struct of_device_id *match; struct device *dev =3D opp_data->cpu_dev; u32 revision; int ret; @@ -441,6 +442,15 @@ static int ti_cpufreq_get_rev(struct ti_cpufreq_data *= opp_data, */ *revision_value =3D 0x1; goto done; + } else { + /* Check if we're on a K3 SoC that needs k3-socinfo */ + match =3D dev_get_platdata(dev); + 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; + } } =20 ret =3D regmap_read(opp_data->syscon, opp_data->soc_data->rev_offset, --=20 2.34.1