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Tue, 28 Jul 2026 00:01:50 -0700 From: Akhil R To: Alexandre Belloni CC: Frank Li , Frank Li , "Miquel Raynal" , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley , "Guenter Roeck" , Philipp Zabel , "Jon Hunter" , Thierry Reding , , , , , , Akhil R Subject: [PATCH v7 06/12] i3c: master: match I3C device through DT and ACPI Date: Tue, 28 Jul 2026 06:59:48 +0000 Message-ID: <20260728065955.809445-7-akhilrajeev@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260728065955.809445-1-akhilrajeev@nvidia.com> References: <20260728065955.809445-1-akhilrajeev@nvidia.com> Precedence: bulk X-Mailing-List: devicetree@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: BN2PEPF00004FBF:EE_|SJ0PR12MB7006:EE_ X-MS-Office365-Filtering-Correlation-Id: ca1c1329-cf9b-457c-a88e-08deec7625d2 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|7416014|1800799024|36860700016|376014|23010399003|56012099006|11063799006|10067099003|22082099003|18002099003|3023799007; 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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 488177d95e48..f94e2410d37b 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