[PATCH v3] dt-bindings: nvmem: add binding for QTI SPMI SDAM
From: Shyam Kumar Thella <hidden>
Date: 2020-01-13 09:21:33
Also in:
linux-arm-msm, lkml
Subsystem:
arm/qualcomm mailing list, nvmem framework, open firmware and flattened device tree bindings, the rest · Maintainers:
Srinivas Kandagatla, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
QTI SDAM allows PMIC peripherals to access the shared memory that is available on QTI PMICs. Add documentation for it. Signed-off-by: Shyam Kumar Thella <redacted> --- .../devicetree/bindings/nvmem/qcom,spmi-sdam.yaml | 83 ++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 Documentation/devicetree/bindings/nvmem/qcom,spmi-sdam.yaml
diff --git a/Documentation/devicetree/bindings/nvmem/qcom,spmi-sdam.yaml b/Documentation/devicetree/bindings/nvmem/qcom,spmi-sdam.yaml
new file mode 100644
index 0000000..f2e640f
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/qcom,spmi-sdam.yaml@@ -0,0 +1,83 @@ +# 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: + - $ref: "nvmem.yaml#" + +properties: + compatible: + enum: + - qcom,spmi-sdam + + reg: + maxItems: 1 + + "#address-cells": + const: 1 + + "#size-cells": + const: 1 + + ranges: true + +required: + - compatible + - reg + +patternProperties: + "^.*@[0-9a-f]+$": + 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 + 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 + - ranges + + 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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