bindings/i2c/nvidia%2Ctegra186-bpmp-i2c.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/i2c/nvidia,tegra186-bpmp-i2c.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: NVIDIA Tegra186 (and later) BPMP I2C controller
10   - Thierry Reding <thierry.reding@gmail.com>
11   - Jon Hunter <jonathanh@nvidia.com>
14   In Tegra186 and later, the BPMP (Boot and Power Management Processor)
16   management I2C bus. Software running on other CPUs must perform IPC to
17   the BPMP in order to execute transactions on that I2C bus. This
18   binding describes an I2C bus that is accessed in such a fashion.
20   The BPMP I2C node must be located directly inside the main BPMP node.
21   See ../firmware/nvidia,tegra186-bpmp.yaml for details of the BPMP
28     const: nvidia,tegra186-bpmp-i2c
30   nvidia,bpmp-bus-id:
32     description: Indicates the I2C bus number this DT node represents,
33       as defined by the BPMP firmware.
36   - $ref: /schemas/i2c/i2c-controller.yaml
41   - compatible
42   - "#address-cells"
43   - "#size-cells"
44   - nvidia,bpmp-bus-id