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Mon, 20 Jul 2026 21:09:35 -0700 From: Akhil R To: Alexandre Belloni CC: Frank Li , Miquel Raynal , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Guenter Roeck , Philipp Zabel , Jon Hunter , Thierry Reding , , , , , , Akhil R Subject: [PATCH v6 06/12] i3c: master: match I3C device through DT and ACPI Date: Tue, 21 Jul 2026 04:07:54 +0000 Message-ID: <20260721040805.1696503-7-akhilrajeev@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260721040805.1696503-1-akhilrajeev@nvidia.com> References: <20260721040805.1696503-1-akhilrajeev@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH3PEPF0000000A:EE_|DS2PR12MB9797:EE_ X-MS-Office365-Filtering-Correlation-Id: e5cc349d-cbd0-4b5b-36be-08dee6ddee15 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|82310400026|36860700016|7416014|376014|1800799024|3023799007|10067099003|56012099006|11063799006|22082099003|18002099003; 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the standard I3C id_table matching may not be applicable. Allow such devices to match through Device Tree or ACPI. Reviewed-by: Frank Li Signed-off-by: Akhil R --- drivers/i3c/master.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c index 7b2f819bf443..43bf530bc661 100644 --- a/drivers/i3c/master.c +++ b/drivers/i3c/master.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -345,15 +346,32 @@ static int i3c_device_match(struct device *dev, const struct device_driver *drv) { struct i3c_device *i3cdev; const struct i3c_driver *i3cdrv; + u8 static_addr_method = 0; if (dev->type != &i3c_device_type) return 0; i3cdev = dev_to_i3cdev(dev); i3cdrv = drv_to_i3cdrv(drv); - if (i3c_device_match_id(i3cdev, i3cdrv->id_table)) + + if (i3cdev->desc && i3cdev->desc->boardinfo) + static_addr_method = i3cdev->desc->boardinfo->static_addr_method; + + /* + * SETAASA-based devices need not always have a matching ID since + * it is not mandatory for such devices to implement deviceinfo + * CCC commands. Allow them to register through DT or ACPI. + */ + if (i3cdrv->id_table && i3c_device_match_id(i3cdev, i3cdrv->id_table)) return 1; + if (static_addr_method & I3C_ADDR_METHOD_SETAASA) { + if (of_driver_match_device(dev, drv)) + return 1; + if (acpi_driver_match_device(dev, drv)) + return 1; + } + return 0; } -- 2.43.0