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Date: Thu, 19 Dec 2019 11:37:19 +0100
From: Saravanan Sekar <sravanhome@...il.com>
To: sravanhome@...il.com, lgirdwood@...il.com, broonie@...nel.org,
robh+dt@...nel.org, mark.rutland@....com, mripard@...nel.org,
heiko@...ech.de, shawnguo@...nel.org,
laurent.pinchart@...asonboard.com, icenowy@...c.io,
mchehab+samsung@...nel.org, davem@...emloft.net,
gregkh@...uxfoundation.org, Jonathan.Cameron@...wei.com
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH 2/4] dt-bindings: regulator: add document bindings for mpq7920
Add device tree binding information for mpq7920 regulator driver.
Example bindings for mpq7920 are added.
Signed-off-by: Saravanan Sekar <sravanhome@...il.com>
---
.../bindings/regulator/mpq7920.yaml | 149 ++++++++++++++++++
1 file changed, 149 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..79000b745cfd
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/mpq7920.yaml
@@ -0,0 +1,149 @@
+# 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@...il.com>
+
+properties:
+ $nodename:
+ pattern: "mpq@[0-9a-f]{1,2}"
+ compatible:
+ enum:
+ - mps,mpq7920
+
+ reg:
+ maxItems: 1
+
+ regulators:
+ type: string
+ 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
+
+ properties:
+ mps,time-slot:
+ - $ref: "/schemas/types.yaml#/definitions/uint8-array"
+ description: |
+ power on/off sequence time slot/interval must be one of following values
+ With:
+ * 0: 0.5ms
+ * 1: 2ms
+ * 2: 8ms
+ * 3: 16ms
+ Defaults to 0.5ms if not specified.
+
+ properties:
+ mps,fixed-on-time:
+ - $ref: "/schemas/types.yaml#/definitions/boolean"
+ description: |
+ select power on sequence with fixed time interval mentioned in
+ time-slot reg for all the regulators.
+
+ properties:
+ mps,fixed-off-time:
+ - $ref: "/schemas/types.yaml#/definitions/boolean"
+ description: |
+ select power off sequence with fixed time interval mentioned in
+ time-slot reg for all the regulators.
+
+ properties:
+ mps,inc-off-time:
+ - $ref: "/schemas/types.yaml#/definitions/uint8-array"
+ description: |
+ An array of 8, linearly increase power off sequence time
+ slot/interval for each regulator must be one of following values
+ * 0 to 15
+ properties:
+ mps,inc-on-time:
+ - $ref: "/schemas/types.yaml#/definitions/uint8-array"
+ description: |
+ An array of 8, linearly increase power on sequence time
+ slot/interval for each regulator must be one of following values
+ * 0 to 15
+
+ properties:
+ mps,switch-freq:
+ - $ref: "/schemas/types.yaml#/definitions/uint8"
+ description: |
+ switching frequency must be one of following values
+ * 0 : 1.1MHz
+ * 1 : 1.65MHz
+ * 2 : 2.2MHz
+ * 3 : 2.75MHz
+ Defaults to 2.2 MHz if not specified.
+
+ properties:
+ mps,buck-softstart:
+ - $ref: "/schemas/types.yaml#/definitions/uint8-array"
+ description: |
+ An array of 4 contains soft start time of each buck, must be one of
+ following values
+ * 0 : 150us
+ * 1 : 300us
+ * 2 : 610us
+ * 3 : 920us
+ Defaults to 300us if not specified.
+
+ properties:
+ mps,buck-ovp:
+ - $ref: "/schemas/types.yaml#/definitions/uint8-array"
+ description: |
+ An array of 4 contains over voltage protection of each buck, must be
+ one of following values
+ * 0 : disabled
+ * 1 : enabled
+ Defaults is enabled if not specified.
+
+ properties:
+ mps,buck-phase-delay:
+ - $ref: "/schemas/types.yaml#/definitions/uint8-array"
+ description: |
+ An array of 4 contains each buck phase delay must be one of following
+ values
+ * 0: 0deg
+ * 1: 90deg
+ * 2: 180deg
+ * 3: 270deg
+ Defaults to 0deg for buck1 & buck2, 90deg for buck3 & buck4 if not
+ specified.
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mpq7920@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
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