[PATCH v4 2/4] dt-bindings: regulator: add document bindings for mpq7920

Saravanan Sekar
2019-12-26T22:29:48Z

Add device tree binding information for mpq7920 regulator driver.
Example bindings for mpq7920 are added.

Signed-off-by: Saravanan Sekar <sravanhome@gmail.com>
---
.../bindings/regulator/mpq7920.yaml | 143 ++++++++++++++++++
1 file changed, 143 insertions(+)
create mode 100644 Documentation/devicetree/bindings/regulator/mpq7920.yaml

diff --git a/Documentation/devicetree/bindings/regulator/mpq7920.yaml b/Documentation/devicetree/bindings/regulator/mpq7920.yaml
new file mode 100644
index 000000000000..54e9177dfd1b
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/mpq7920.yaml
@@ -0,0 +1,143 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/mpq7920.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Monolithic Power System MPQ7920 PMIC
+
+maintainers:
+ - Saravanan Sekar <sravanhome@gmail.com>
+
+properties:
+ $nodename:
+ pattern: "pmic@[0-9a-f]{1,2}"
+ compatible:
+ enum:
+ - mps,mpq7920
+
+ reg:
+ maxItems: 1
+
+ mps,time-slot:
+ description:
+ each regulator output shall be delayed during power on/off sequence which
+ based on configurable time slot value, must be one of following corresponding
+ value 0.5ms, 2ms, 8ms, 16ms
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint8"
+ - enum: [ 0, 1, 2, 3 ]
+ - default: 0
+
+ mps,fixed-on-time:
+ description:
+ select power on sequence with fixed time output delay mentioned in
+ time-slot reg for all the regulators.
+ type: boolean
+
+ mps,fixed-off-time:
+ description:
+ select power off sequence with fixed time output delay mentioned in
+ time-slot reg for all the regulators.
+ type: boolean
+
+ mps,inc-off-time:
+ description: |
+ mutually exclusive to mps,fixed-off-time an array of 8, linearly increase
+ output delay during power off sequence based on factor of time slot/interval
+ for each regulator.
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint8-array"
+ - minimum: 0
+ - maximum: 15
+ - default: [ 0, 6, 0, 6, 7, 7, 7, 9 ]
+
+ mps,inc-on-time:
+ description: |
+ mutually exclusive to mps,fixed-on-time an array of 8, linearly increase
+ output delay during power on sequence based on factor of time slot/interval
+ for each regulator.
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint8-array"
+ - minimum: 0
+ - maximum: 15
+ - default: [ 0, 6, 0, 6, 7, 7, 7, 9 ]
+
+ mps,switch-freq:
+ description: |
+ switching frequency must be one of following corresponding value
+ 1.1MHz, 1.65MHz, 2.2MHz, 2.75MHz
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint8"
+ - enum: [ 0, 1, 2, 3 ]
+ - default: 2
+
+ mps,buck-softstart:
+ description: |
+ An array of 4 contains soft start time of each buck, must be one of
+ following corresponding values 150us, 300us, 610us, 920us
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint8-array"
+ - enum: [ 0, 1, 2, 3 ]
+ - default: [ 1, 1, 1, 1 ]
+
+ mps,buck-ovp:
+ description: |
+ An array of 4 contains over voltage protection of each buck, must be
+ one of above values
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint8-array"
+ - enum: [ 0, 1 ]
+ - default: [ 1, 1, 1, 1 ]
+
+ mps,buck-phase-delay:
+ description: |
+ An array of 4 contains phase delay of each buck must be one of above values
+ corresponding to 0deg, 90deg, 180deg, 270deg
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint8-array"
+ - enum: [ 0, 1, 2, 3 ]
+ - default: [ 0, 0, 1, 1 ]
+
+ regulators:
+ type: object
+ description:
+ list of regulators provided by this controller, must be named
+ after their hardware counterparts BUCK[1-4], one LDORTC, and LDO[2-5]
+ The valid names for regulators are
+ buck1, buck2, buck3, buck4, ldortc, ldo2, ldo3, ldo4, ldo5
+
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmic@69 {
+ compatible = "mps,mpq7920";
+ reg = <0x69>;
+
+ mps,switch-freq = <1>;
+ mps,buck-softstart = /bits/ 8 <1 2 1 3>;
+ mps,buck-ovp = /bits/ 8 <1 0 1 1>;
+
+ regulators {
+ buck1 {
+ regulator-name = "buck1";
+ regulator-min-microvolt = <400000>;
+ regulator-max-microvolt = <3587500>;
+ regulator-min-microamp = <460000>;
+ regulator-max-microamp = <7600000>;
+ regulator-boot-on;
+ };
+
+ ldo2 {
+ regulator-name = "ldo2";
+ regulator-min-microvolt = <650000>;
+ regulator-max-microvolt = <3587500>;
+ };
+ };
+ };
+ };
+...
--
2.17.1