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| author | Thierry Reding <treding@nvidia.com> | 2021-12-08 15:33:06 +0100 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2021-12-08 22:52:05 +0100 |
| commit | 84184107c39ae65d08f6d449a57ec58734ff535a (patch) | |
| tree | 130822a98446d697bf4f5928e97ee2d88dc02ecc /Documentation/devicetree/bindings/i2c/nvidia,tegra186-bpmp-i2c.yaml | |
| parent | dt-bindings: arm: pmu: Document Denver and Carmel PMUs (diff) | |
| download | linux-84184107c39ae65d08f6d449a57ec58734ff535a.tar.xz linux-84184107c39ae65d08f6d449a57ec58734ff535a.zip | |
dt-bindings: i2c: tegra-bpmp: Convert to json-schema
Convert the NVIDIA Tegra186 (and later) BPMP I2C bindings from the
free-form text format to json-schema.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20211208143306.534700-1-thierry.reding@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c/nvidia,tegra186-bpmp-i2c.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/nvidia,tegra186-bpmp-i2c.yaml | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/nvidia,tegra186-bpmp-i2c.yaml b/Documentation/devicetree/bindings/i2c/nvidia,tegra186-bpmp-i2c.yaml new file mode 100644 index 000000000000..b8319dcf3d8a --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/nvidia,tegra186-bpmp-i2c.yaml @@ -0,0 +1,45 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/nvidia,tegra186-bpmp-i2c.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NVIDIA Tegra186 (and later) BPMP I2C controller + +maintainers: + - Thierry Reding <thierry.reding@gmail.com> + - Jon Hunter <jonathanh@nvidia.com> + +description: | + In Tegra186 and later, the BPMP (Boot and Power Management Processor) + owns certain HW devices, such as the I2C controller for the power + management I2C bus. Software running on other CPUs must perform IPC to + the BPMP in order to execute transactions on that I2C bus. This + binding describes an I2C bus that is accessed in such a fashion. + + The BPMP I2C node must be located directly inside the main BPMP node. + See ../firmware/nvidia,tegra186-bpmp.yaml for details of the BPMP + binding. + + This node represents an I2C controller. See ../i2c/i2c.txt for details + of the core I2C binding. + +properties: + compatible: + const: nvidia,tegra186-bpmp-i2c + + nvidia,bpmp-bus-id: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Indicates the I2C bus number this DT node represents, + as defined by the BPMP firmware. + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml + +unevaluatedProperties: false + +required: + - compatible + - "#address-cells" + - "#size-cells" + - nvidia,bpmp-bus-id |