dt-bindings: reset: Add AOSS reset bindings for SDM845 SoCs

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";

	...

};

/* SPDX-License-Identifier: GPL-2.0 */

/*

 * Copyright (C) 2018 The Linux Foundation. All rights reserved.

 */

#ifndef _DT_BINDINGS_RESET_AOSS_SDM_845_H

#define _DT_BINDINGS_RESET_AOSS_SDM_845_H

#define AOSS_CC_MSS_RESTART	0

#define AOSS_CC_CAMSS_RESTART	1

#define AOSS_CC_VENUS_RESTART	2

#define AOSS_CC_GPU_RESTART	3

#define AOSS_CC_DISPSS_RESTART	4

#define AOSS_CC_WCSS_RESTART	5

#define AOSS_CC_LPASS_RESTART	6

#endif