[v4,01/16] dt-bindings: regulator: Document ROHM BD71282 regulator bindings
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Message ID d29e0eb587b764f3ea77647392e45fac67bbd757.1573928775.git.matti.vaittinen@fi.rohmeurope.com
State New
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Series
  • Support ROHM BD71828 PMIC
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Commit Message

Vaittinen, Matti Nov. 16, 2019, 6:55 p.m. UTC
Document ROHM BD71828 PMIC regulator device tree bindings.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
 .../regulator/rohm,bd71828-regulator.yaml     | 122 ++++++++++++++++++
 1 file changed, 122 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/rohm,bd71828-regulator.yaml

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diff --git a/Documentation/devicetree/bindings/regulator/rohm,bd71828-regulator.yaml b/Documentation/devicetree/bindings/regulator/rohm,bd71828-regulator.yaml
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@@ -0,0 +1,122 @@ 
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/rohm,bd71828-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ROHM BD71828 Power Management Integrated Circuit regulators
+
+maintainers:
+  - Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
+
+description: |
+  This module is part of the ROHM BD71828 MFD device. For more details
+  see Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.yaml.
+
+  The regulator controller is represented as a sub-node of the PMIC node
+  on the device tree.
+
+  Regulator nodes should be named to BUCK_<number> and LDO_<number>.
+  The valid names for BD71828 regulator nodes are
+  BUCK1, BUCK2, BUCK3, BUCK4, BUCK5, BUCK6, BUCK7
+  LDO1, LDO2, LDO3, LDO4, LDO5, LDO6, LDO7
+
+patternProperties:
+  "^LDO[1-7]$":
+    type: object
+    allOf:
+      - $ref: regulator.yaml#
+    description:
+      Properties for single LDO regulator.
+
+    properties:
+      #Is there a nice way to check the name is same as node name but lower case
+      regulator-name:
+        pattern: "^ldo[1-7]$"
+        description:
+          should be "ldo1", ..., "ldo7"
+
+  "^BUCK[1-7]$":
+    type: object
+    allOf:
+      - $ref: regulator.yaml#
+    description:
+      Properties for single BUCK regulator.
+
+    properties:
+      #Is there a nice way to check the name is same as node name but lower case
+      regulator-name:
+        pattern: "^buck[1-7]$"
+        description:
+          should be "buck1", ..., "buck7"
+
+      rohm,dvs-run-voltage:
+        allOf:
+          - $ref: "/schemas/types.yaml#/definitions/uint32"
+          - minimum: 0
+            maximum: 3300000
+        description:
+          PMIC default "RUN" state voltage in uV. See below table for
+          bucks which support this. 0 means disabled.
+
+      rohm,dvs-idle-voltage:
+        allOf:
+          - $ref: "/schemas/types.yaml#/definitions/uint32"
+          - minimum: 0
+            maximum: 3300000
+        description:
+          PMIC default "IDLE" state voltage in uV. See below table for
+          bucks which support this. 0 means disabled.
+
+      rohm,dvs-suspend-voltage:
+        allOf:
+          - $ref: "/schemas/types.yaml#/definitions/uint32"
+          - minimum: 0
+            maximum: 3300000
+        description:
+          PMIC default "SUSPEND" state voltage in uV. See below table for
+          bucks which support this. 0 means disabled.
+
+      rohm,dvs-lpsr-voltage:
+        allOf:
+          - $ref: "/schemas/types.yaml#/definitions/uint32"
+          - minimum: 0
+            maximum: 3300000
+        description:
+          PMIC default "LPSR" state voltage in uV. See below table for
+          bucks which support this. 0 means disabled.
+
+#Supported default DVS states:
+#buck		| run		| idle		| suspend	| lpsr
+#----------------------------------------------------------------------------
+#1, 2, 6, and 7	| supported	| supported	| 	supported (*)
+#----------------------------------------------------------------------------
+#3, 4, and 5	| 			supported (**)
+#----------------------------------------------------------------------------
+#(*)  LPSR and SUSPEND states use same voltage but both states have own enable /
+#     disable settings. Voltage 0 can be specified for a state to make regulator
+#     disabled on that state.
+#(**) All states use same voltage but have own enable / disable settings.
+#     Voltage 0 can be specified for a state to make regulator disabled on that
+#     state.
+
+      rohm,dvs-runlvl-ctrl:
+        description: |
+          buck control is done based on run-level. Regulator is not
+          individually controllable. See ../mfd/rohm,bd71828-pmic.yaml for
+          how to specify run-level control mechanism. Only bucks 1, 2, 6
+          and 7 support this.
+        type: boolean
+
+      rohm,dvs-runlevel-microvolts:
+        minimum: 0
+        maximum: 2000000
+        maxItems: 4
+        description:
+          Array of voltages for run-levels. First value is for run-level 0,
+          second for run-level 1 etc. Microvolts.
+
+    required:
+      - regulator-name
+  additionalProperties: false
+additionalProperties: false