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Tue, 16 Jun 2026 02:56:18 -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 v4 07/12] i3c: dw-i3c-master: Add SETAASA as supported CCC Date: Tue, 16 Jun 2026 09:54:21 +0000 Message-ID: <20260616095429.3947205-8-akhilrajeev@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260616095429.3947205-1-akhilrajeev@nvidia.com> References: <20260616095429.3947205-1-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: SN1PEPF0002636E:EE_|CY3PR12MB9631:EE_ X-MS-Office365-Filtering-Correlation-Id: 454d0894-197f-4eb7-5aa0-08decb8d8b04 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|36860700016|82310400026|23010399003|1800799024|56012099006|3023799007|11063799006|22082099003|18002099003; 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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. 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 971b429b76bc..3e510fddf06c 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