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Wed, 24 Jun 2026 03:23:41 -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 v5 07/12] i3c: dw-i3c-master: Add SETAASA as supported CCC Date: Wed, 24 Jun 2026 10:21:01 +0000 Message-ID: <20260624102153.1770072-8-akhilrajeev@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260624102153.1770072-1-akhilrajeev@nvidia.com> References: <20260624102153.1770072-1-akhilrajeev@nvidia.com> MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF000397B4:EE_|DM4PR12MB6110:EE_ X-MS-Office365-Filtering-Correlation-Id: e5a701d6-f15e-4e65-7951-08ded1dab5e7 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700016|23010399003|82310400026|7416014|376014|1800799024|56012099006|11063799006|22082099003|18002099003|3023799007; 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X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org Add SETAASA and SETHID to the supported list of CCC commands for DesignWare I3C host controller. SETAASA is a broadcast command that assigns predefined static addresses to all I3C devices on the bus. SETHID is to stop HID bit flipping by the SPD Hub to which the SPD devices are connected. It is a prerequisite command to be sent before SETAASA as recommended by JESD300-5 and JESD403 sideband bus specifications. Reviewed-by: Frank Li Signed-off-by: Akhil R --- drivers/i3c/master/dw-i3c-master.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c index 2f8c0c4683e0..29030fd9594a 100644 --- a/drivers/i3c/master/dw-i3c-master.c +++ b/drivers/i3c/master/dw-i3c-master.c @@ -309,6 +309,8 @@ static bool dw_i3c_master_supports_ccc_cmd(struct i3c_master_controller *m, case I3C_CCC_GETSTATUS: case I3C_CCC_GETMXDS: case I3C_CCC_GETHDRCAP: + case I3C_CCC_SETAASA: + case I3C_CCC_VENDOR(0, true): /* SETHID */ return true; default: return false; -- 2.43.0 -- linux-i3c mailing list linux-i3c@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-i3c