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authorSascha Hauer <s.hauer@pengutronix.de>2022-01-27 11:22:53 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2022-01-28 15:31:59 +0100
commit5f3e773ca4830daf71c7b5eee0c6b1dfe4d09c08 (patch)
tree0634f20e5f75f3d44242af47eebd9ea1ce0163f6 /dts/Bindings/i2c/nvidia,tegra186-bpmp-i2c.yaml
parentdb35548372eaee835fbf9bae68c08362ba59d49d (diff)
downloadbarebox-5f3e773ca4830daf71c7b5eee0c6b1dfe4d09c08.tar.gz
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dts: update to v5.17-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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+# 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