Commit 9664a6b5 authored by Shyam Kumar Thella's avatar Shyam Kumar Thella Committed by Greg Kroah-Hartman

dt-bindings: nvmem: add binding for QTI SPMI SDAM

QTI SDAM allows PMIC peripherals to access the shared memory that is
available on QTI PMICs. Add documentation for it.
Signed-off-by: default avatarShyam Kumar Thella <sthella@codeaurora.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200116161100.30637-3-srinivas.kandagatla@linaro.orgSigned-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4ad3ad18
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/nvmem/qcom,spmi-sdam.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Technologies, Inc. SPMI SDAM DT bindings
maintainers:
- Shyam Kumar Thella <sthella@codeaurora.org>
description: |
The SDAM provides scratch register space for the PMIC clients. This
memory can be used by software to store information or communicate
to/from the PBUS.
allOf:
- $ref: "nvmem.yaml#"
properties:
compatible:
enum:
- qcom,spmi-sdam
reg:
maxItems: 1
"#address-cells":
const: 1
"#size-cells":
const: 1
ranges: true
required:
- compatible
- reg
- ranges
patternProperties:
"^.*@[0-9a-f]+$":
type: object
properties:
reg:
maxItems: 1
description:
Offset and size in bytes within the storage device.
bits:
$ref: /schemas/types.yaml#/definitions/uint32-array
maxItems: 1
items:
items:
- minimum: 0
maximum: 7
description:
Offset in bit within the address range specified by reg.
- minimum: 1
description:
Size in bit within the address range specified by reg.
required:
- reg
additionalProperties: false
examples:
- |
sdam_1: nvram@b000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "qcom,spmi-sdam";
reg = <0xb000 0x100>;
ranges = <0 0xb000 0x100>;
/* Data cells */
restart_reason: restart@50 {
reg = <0x50 0x1>;
bits = <6 2>;
};
};
...
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