[PATCH v3 1/4] dt-bindings: mfd: Add TI TPS6594 PMIC

[Julien Panis <jpanis@baylibre.com>]

TPS6594 is a Power Management IC which provides regulators and others
features like GPIOs, RTC, watchdog, ESMs (Error Signal Monitor), and
PFSM (Pre-configurable Finite State Machine) managing the state of the
device.
TPS6594 is the super-set device while TPS6593 and LP8764X are derivatives.

Signed-off-by: Julien Panis <jpanis@baylibre.com>
---
 .../devicetree/bindings/mfd/ti,tps6594.yaml   | 231 ++++++++++++++++++
 1 file changed, 231 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/ti,tps6594.yaml

diff --git a/Documentation/devicetree/bindings/mfd/ti,tps6594.yaml b/Documentation/devicetree/bindings/mfd/ti,tps6594.yaml
new file mode 100644
index 000000000000..4e4565a68e40
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/ti,tps6594.yaml
@@ -0,0 +1,231 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/ti,tps6594.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI TPS6594 Power Management Integrated Circuit
+
+maintainers:
+  - Julien Panis <jpanis@baylibre.com>
+
+description:
+  TPS6594 is a Power Management IC which provides regulators and others
+  features like GPIOs, RTC, watchdog, ESMs (Error Signal Monitor), and
+  PFSM (Pre-configurable Finite State Machine) managing the state of the device.
+  TPS6594 is the super-set device while TPS6593 and LP8764X are derivatives.
+
+properties:
+  compatible:
+    enum:
+      - ti,lp8764x
+      - ti,tps6593
+      - ti,tps6594
+
+  reg:
+    description: I2C slave address or SPI chip select number.
+    maxItems: 1
+
+  ti,primary-pmic:
+    type: boolean
+    description: |
+      Identify the primary PMIC on SPMI bus.
+      A multi-PMIC synchronization scheme is implemented in the PMIC device
+      to synchronize the power state changes with other PMIC devices. This is
+      accomplished through a SPMI bus: the primary PMIC is the controller
+      device on the SPMI bus, and the secondary PMICs are the target devices
+      on the SPMI bus.
+
+  system-power-controller: true
+
+  gpio-controller: true
+
+  '#gpio-cells':
+    const: 2
+    description: |
+      The first cell is the pin number, the second cell is used to specify flags.
+      See ../gpio/gpio.txt for more information.
+
+  interrupts:
+    maxItems: 1
+
+  ti,multi-phase-id:
+    description: |
+      Describes buck multi-phase configuration, if any. For instance, XY id means
+      that outputs of buck converters X and Y are combined in multi-phase mode.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    oneOf:
+      - items:
+          - const: 12
+      - items:
+          - const: 34
+      - items:
+          - const: 12
+          - const: 34
+      - items:
+          - const: 123
+      - items:
+          - const: 1234
+
+  regulators:
+    type: object
+    description: List of regulators provided by this controller.
+
+    patternProperties:
+      "^buck([1-5]|12|34|123|1234)$":
+        type: object
+        $ref: /schemas/regulator/regulator.yaml#
+
+        unevaluatedProperties: false
+
+      "^ldo[1-4]$":
+        type: object
+        $ref: /schemas/regulator/regulator.yaml#
+
+        unevaluatedProperties: false
+
+    allOf:
+      - if:
+          required:
+            - buck12
+        then:
+          properties:
+            buck123: false
+            buck1234: false
+      - if:
+          required:
+            - buck123
+        then:
+          properties:
+            buck34: false
+      - if:
+          required:
+            - buck1234
+        then:
+          properties:
+            buck34: false
+
+    additionalProperties: false
+
+  rtc:
+    type: object
+    description: RTC provided by this controller.
+    $ref: /schemas/rtc/rtc.yaml#
+
+  watchdog:
+    type: object
+    description: Watchdog provided by this controller.
+    $ref: /schemas/watchdog/watchdog.yaml#
+
+patternProperties:
+  "^buck([1-5]|12|34|123|1234)-supply$":
+    description: Input supply phandle for each buck.
+
+  "^ldo[1-4]-supply$":
+    description: Input supply phandle for each ldo.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        tps6593: pmic@48 {
+            compatible = "ti,tps6593";
+            reg = <0x48>;
+            ti,primary-pmic;
+            system-power-controller;
+
+            gpio-controller;
+            #gpio-cells = <2>;
+
+            pinctrl-names = "default";
+            pinctrl-0 = <&pmic_irq_pins_default>;
+            interrupt-parent = <&mcu_gpio0>;
+            interrupts = <0 IRQ_TYPE_EDGE_FALLING>;
+
+            ti,multi-phase-id = <123>;
+
+            buck123-supply = <&vcc_3v3_sys>;
+            buck4-supply = <&vcc_3v3_sys>;
+            buck5-supply = <&vcc_3v3_sys>;
+            ldo1-supply = <&vcc_3v3_sys>;
+            ldo2-supply = <&vcc_3v3_sys>;
+            ldo3-supply = <&buck5>;
+            ldo4-supply = <&vcc_3v3_sys>;
+
+            regulators {
+                buck123: buck123 {
+                    regulator-name = "vcc_core";
+                    regulator-min-microvolt = <750000>;
+                    regulator-max-microvolt = <850000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                buck4: buck4 {
+                    regulator-name = "vcc_1v1";
+                    regulator-min-microvolt = <1100000>;
+                    regulator-max-microvolt = <1100000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                buck5: buck5 {
+                    regulator-name = "vcc_1v8_sys";
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <1800000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                ldo1: ldo1 {
+                    regulator-name = "vddshv5_sdio";
+                    regulator-min-microvolt = <3300000>;
+                    regulator-max-microvolt = <3300000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                ldo2: ldo2 {
+                    regulator-name = "vpp_1v8";
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <1800000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                ldo3: ldo3 {
+                    regulator-name = "vcc_0v85";
+                    regulator-min-microvolt = <850000>;
+                    regulator-max-microvolt = <850000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                ldo4: ldo4 {
+                    regulator-name = "vdda_1v8";
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <1800000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+            };
+
+            rtc: rtc {
+                wakeup-source;
+            };
+
+            watchdog: watchdog {
+                timeout-sec = <10>;
+            };
+        };
+    };
-- 
2.37.3