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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Aug 2025 08:33:10.3715 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7fc59e39-5f2c-41af-635b-08dde47b309b X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BY1PEPF0001AE18.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV2PR12MB5797 Content-Type: text/plain; charset="utf-8" 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 Acked-by: Conor Dooley --- v2 -> v3: * Add constraints for "nvidia,tegra264-i2c". v1 -> v2: * Fixed typos. --- .../devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml = b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml index 6b6f6762d122..f0693b872cb6 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 fr= om + Tegra194, a SW mutex register is added to support use of the sam= e I2C + instance across multiple firmwares. + const: nvidia,tegra264-i2c =20 reg: maxItems: 1 @@ -186,6 +192,7 @@ allOf: contains: enum: - nvidia,tegra194-i2c + - nvidia,tegra264-i2c then: required: - resets --=20 2.43.0