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Thu, 30 Jan 2025 06:34:41 -0800 From: Kartik Rajput To: , , , , , , , , , , , , Subject: [PATCH v2 1/5] dt-bindings: i2c: nvidia,tegra20-i2c: Document Tegra264 I2C Date: Thu, 30 Jan 2025 20:04:20 +0530 Message-ID: <20250130143424.52389-2-kkartik@nvidia.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250130143424.52389-1-kkartik@nvidia.com> References: <20250130143424.52389-1-kkartik@nvidia.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NV-OnPremToCloud: AnonymousSubmission X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF0002636B:EE_|DM3PR12MB9435:EE_ X-MS-Office365-Filtering-Correlation-Id: 42c8f6b0-5252-4b5a-1325-08dd413b4ad1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|1800799024|7416014|36860700013|82310400026|376014|921020; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc6edge2.nvidia.com; CAT:NONE; SFS:(13230040)(1800799024)(7416014)(36860700013)(82310400026)(376014)(921020); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Jan 2025 14:35:06.9164 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 42c8f6b0-5252-4b5a-1325-08dd413b4ad1 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.117.161]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SN1PEPF0002636B.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM3PR12MB9435 Tegra264 has 17 generic I2C controllers, two of which are in always-on partition of the SoC. In addition to the features supported by Tegra194 it also supports a SW mutex register to allow sharing the same I2C instance across multiple firmware. Document compatible string "nvidia,tegra264-i2c" for Tegra264 I2C. Signed-off-by: Kartik Rajput --- v1 -> v2: * Fixed typos. --- .../devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml index b57ae6963e62..89138384517e 100644 --- a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml +++ b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml @@ -80,6 +80,12 @@ properties: support for 64 KiB transactions whereas earlier chips supported no more than 4 KiB per transactions. const: nvidia,tegra194-i2c + - description: + Tegra264 has 17 generic I2C controllers, two of which are in the AON + (always-on) partition of the SoC. In addition to the features from + Tegra194, a SW mutex register is added to support use of the same I2C + instance across multiple firmwares. + const: nvidia,tegra264-i2c reg: maxItems: 1