[RFC PATCH v3 1/5] dt-bindings: mfd: add entry for Marvell 88PM886 PMIC

Karel Balej
2024-03-03T10:15:35Z

From: Karel Balej <balejk@matfyz.cz>

Marvell 88PM886 is a PMIC with several subdevices such as onkey,
regulators or battery and charger. It comes in at least two revisions,
A0 and A1 -- only A1 is described here at the moment.

Signed-off-by: Karel Balej <balejk@matfyz.cz>
---

Notes:
RFC v3:
- Add wakeup-source property.
- Address Rob's feedback:
- Move regulators into the MFD file.
- Remove interrupt-controller and #interrupt-cells properties.
RFC v2:
- Address Rob's feedback:
- Drop mention of 88PM880.
- Make sure the file passes bindings check (add the necessary header
and fix `interrupt-cells`).
- Other small changes.
- Add regulators. Changes with respect to the regulator RFC series:
- Address Krzysztof's comments:
- Drop unused compatible.
- Fix sub-node pattern.

.../bindings/mfd/marvell,88pm886-a1.yaml | 76 +++++++++++++++++++
1 file changed, 76 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/marvell,88pm886-a1.yaml

diff --git a/Documentation/devicetree/bindings/mfd/marvell,88pm886-a1.yaml b/Documentation/devicetree/bindings/mfd/marvell,88pm886-a1.yaml
new file mode 100644
index 000000000000..61ffbf669e90
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/marvell,88pm886-a1.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/marvell,88pm886-a1.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell 88PM886 PMIC core
+
+maintainers:
+ - Karel Balej <balejk@matfyz.cz>
+
+description:
+ Marvell 88PM886 is a PMIC providing several functions such as onkey,
+ regulators or battery and charger.
+
+properties:
+ compatible:
+ const: marvell,88pm886-a1
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ wakeup-source: true
+
+ regulators:
+ type: object
+ additionalProperties: false
+ patternProperties:
+ "^(ldo(1[0-6]|[1-9])|buck[1-5])$":
+ type: object
+ $ref: /schemas/regulator/regulator.yaml#
+ description: LDO or buck regulator.
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pmic@30 {
+ compatible = "marvell,88pm886-a1";
+ reg = <0x30>;
+ interrupts = <0 4 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&gic>;
+ wakeup-source;
+
+ regulators {
+ ldo2: ldo2 {
+ regulator-min-microvolt = <3100000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ ldo15: ldo15 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ buck2: buck2 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+ };
+ };
+ };
+...
--
2.44.0