[PATCH v2 1/6] dt-bindings: mfd: Add Actions Semi ATC260x PMIC binding

[Cristian Ciocaltea <cristian.ciocaltea@gmail.com>]

Add devicetree binding for Actions Semi ATC260x PMICs.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
---
 .../bindings/mfd/actions,atc260x.yaml         | 221 ++++++++++++++++++
 1 file changed, 221 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/actions,atc260x.yaml

diff --git a/Documentation/devicetree/bindings/mfd/actions,atc260x.yaml b/Documentation/devicetree/bindings/mfd/actions,atc260x.yaml
new file mode 100644
index 000000000000..4a55bbe1306e
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/actions,atc260x.yaml
@@ -0,0 +1,221 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/actions,atc260x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Actions Semi ATC260x Power Management IC bindings
+
+maintainers:
+  - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+  - Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
+
+description: |
+  ATC260x series PMICs integrates Audio Codec, Power Management, RTC, IR
+  and GPIO controller blocks. Currently only the PM related functionalities
+  (i.e. regulators and system power-off/reboot) for the ATC2603C and ATC2609A
+  chip variants are supported.
+  ATC2603C includes 3 programmable DC-DC converters and 9 LDO regulators.
+  ATC2609A includes 5 programmable DC-DC converters and 10 LDO regulators.
+
+properties:
+  compatible:
+    enum:
+      - actions,atc2603c
+      - actions,atc2609a
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  pwrc:
+    type: object
+    description: |
+      The power controller integrated in ATC260x provides system power-off
+      and reboot operations.
+
+    properties:
+      compatible:
+        enum:
+          - actions,atc2603c-pwrc
+          - actions,atc2609a-pwrc
+
+    required:
+      - compatible
+
+    additionalProperties: false
+
+  onkey:
+    type: object
+    description: |
+      Use the ONKEY built into ATC260x PMICs as an input device reporting
+      power button status. ONKEY can be used to wakeup from low power
+      modes and force a reset on long press.
+
+    properties:
+      compatible:
+        enum:
+          - actions,atc2603c-onkey
+          - actions,atc2609a-onkey
+
+      actions,reset-time-sec:
+        description: |
+          Duration in seconds which the key should be kept pressed for device
+          to reset automatically. The hardware default is 8. Use 0 to disable
+          this functionality.
+        enum: [0, 6, 8, 10, 12]
+
+    required:
+      - compatible
+
+    additionalProperties: false
+
+  regulators:
+    type: object
+    description: |
+      List of child nodes specifying the regulators, depending on chip variant:
+      * ATC2603C: dcdc[1-3], ldo[1-3,5-8,11], switchldo1
+      * ATC2609A: dcdc[0-4], ldo[0-9]
+
+    properties:
+      compatible:
+        enum:
+          - actions,atc2603c-regulator
+          - actions,atc2609a-regulator
+
+      switchldo1:
+        type: object
+        $ref: ../regulator/regulator.yaml
+
+        properties:
+          regulator-name: true
+          regulator-boot-on: true
+          regulator-always-on: true
+          regulator-min-microvolt: true
+          regulator-max-microvolt: true
+          regulator-allow-bypass: true
+          regulator-active-discharge: true
+
+        additionalProperties: false
+
+    patternProperties:
+      "^(dcdc[0-4]|ldo[0-9]|ldo11|switchldo1)-supply$":
+        description: ATC260x voltage regulators supplies
+
+      "^(dcdc[0-4]|ldo[0-9]|ldo11)$":
+        type: object
+        $ref: ../regulator/regulator.yaml
+
+        properties:
+          regulator-name: true
+          regulator-boot-on: true
+          regulator-always-on: true
+          regulator-min-microvolt: true
+          regulator-max-microvolt: true
+          regulator-allow-bypass: true
+
+        additionalProperties: false
+
+    allOf:
+      - if:
+          properties:
+            compatible:
+              contains:
+                const: actions,atc2603c-regulator
+        then:
+          patternProperties:
+            "^(dcdc[0,4]|ldo[0,4,9])(-supply)?$": false
+
+            "^(ldo|dcdc)":
+              properties:
+                regulator-allow-bypass: false
+      - if:
+          properties:
+            compatible:
+              contains:
+                const: actions,atc2609a-regulator
+        then:
+          patternProperties:
+            "^(ldo11|switchldo1)(-supply)?$": false
+
+            "^(dcdc|ldo[3-9])":
+              properties:
+                regulator-allow-bypass: false
+
+    required:
+      - compatible
+
+    additionalProperties: false
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    i2c0 {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      pmic@65 {
+        compatible = "actions,atc2603c";
+        reg = <0x65>;
+        interrupt-parent = <&sirq>;
+        interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
+
+        pwrc {
+          compatible = "actions,atc2603c-pwrc";
+        };
+
+        onkey {
+          compatible = "actions,atc2603c-onkey";
+          actions,reset-time-sec = <6>;
+        };
+
+        regulators {
+          compatible = "actions,atc2603c-regulator";
+
+          dcdc1-supply = <&reg_5v0>;
+          dcdc3-supply = <&reg_5v0>;
+          ldo5-supply = <&reg_5v0>;
+          switchldo1-supply = <&vcc>;
+
+          vdd_cpu: dcdc1 {
+            regulator-name = "VDD_CPU";
+            regulator-min-microvolt = <700000>;
+            regulator-max-microvolt = <1400000>;
+            regulator-always-on;
+          };
+
+          vcc: dcdc3 {
+            regulator-name = "VCC";
+            regulator-min-microvolt = <2600000>;
+            regulator-max-microvolt = <3300000>;
+            regulator-always-on;
+          };
+
+          vcc_3v1: ldo5 {
+            regulator-name = "VCC_3V1";
+            regulator-min-microvolt = <2600000>;
+            regulator-max-microvolt = <3300000>;
+          };
+
+          sd_vcc: switchldo1 {
+            regulator-name = "SD_VCC";
+            regulator-min-microvolt = <3000000>;
+            regulator-max-microvolt = <3300000>;
+            regulator-always-on;
+            regulator-boot-on;
+          };
+        };
+      };
+    };
+
+...
-- 
2.28.0