Commit b76b4e1d authored by Sibi Sankar's avatar Sibi Sankar Committed by Philipp Zabel
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dt-bindings: reset: aoss: Convert AOSS reset bindings to yaml



Convert AOSS reset bindings to yaml and add SC7180 AOSS reset to the list
of possible bindings.

Signed-off-by: default avatarSibi Sankar <sibis@codeaurora.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
parent b89a8da9
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Qualcomm AOSS Reset Controller
======================================

This binding describes a reset-controller found on AOSS-CC (always on subsystem)
for Qualcomm SDM845 SoCs.

Required properties:
- compatible:
	Usage: required
	Value type: <string>
	Definition: must be:
		    "qcom,sdm845-aoss-cc"

- reg:
	Usage: required
	Value type: <prop-encoded-array>
	Definition: must specify the base address and size of the register
	            space.

- #reset-cells:
	Usage: required
	Value type: <uint>
	Definition: must be 1; cell entry represents the reset index.

Example:

aoss_reset: reset-controller@c2a0000 {
	compatible = "qcom,sdm845-aoss-cc";
	reg = <0xc2a0000 0x31000>;
	#reset-cells = <1>;
};

Specifying reset lines connected to IP modules
==============================================

Device nodes that need access to reset lines should
specify them as a reset phandle in their corresponding node as
specified in reset.txt.

For list of all valid reset indicies see
<dt-bindings/reset/qcom,sdm845-aoss.h>

Example:

modem-pil@4080000 {
	...

	resets = <&aoss_reset AOSS_CC_MSS_RESTART>;
	reset-names = "mss_restart";

	...
};
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/reset/qcom,aoss-reset.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm AOSS Reset Controller

maintainers:
  - Sibi Sankar <sibis@codeaurora.org>

description:
  The bindings describe the reset-controller found on AOSS-CC (always on
  subsystem) for Qualcomm Technologies Inc SoCs.

properties:
  compatible:
    oneOf:
      - description: on SC7180 SoCs the following compatibles must be specified
        items:
          - const: "qcom,sc7180-aoss-cc"
          - const: "qcom,sdm845-aoss-cc"

      - description: on SDM845 SoCs the following compatibles must be specified
        items:
          - const: "qcom,sdm845-aoss-cc"

  reg:
    maxItems: 1

  '#reset-cells':
    const: 1

required:
  - compatible
  - reg
  - '#reset-cells'

additionalProperties: false

examples:
  - |
    aoss_reset: reset-controller@c2a0000 {
      compatible = "qcom,sdm845-aoss-cc";
      reg = <0xc2a0000 0x31000>;
      #reset-cells = <1>;
    };