dt-bindings: mfd: brcm,bcm59056: Convert to YAML

Convert devicetree bindings for the Broadcom BCM59056 PMU MFD from
TXT to YAML format. This patch does not change any functionality;
the bindings remain the same.

The bindings have been split into two parts: the MFD binding and
a separate binding for the regulator node, to simplify the addition
of other models later (which have different regulators).

Signed-off-by: Artur Weber <[e-mail]>
Reviewed-by: "Rob Herring (Arm)" <[e-mail]>
Reviewed-by: Stanislav Jakubek <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Lee Jones <[e-mail]>

Documentation/devicetree/bindings/mfd/brcm,bcm59056.txt

···
--------------------------------
-BCM590xx Power Management Units
--------------------------------
-
-Required properties:
-- compatible: "brcm,bcm59056"
-- reg: I2C slave address
-- interrupts: interrupt for the PMU. Generic interrupt client node bindings
-  are described in interrupt-controller/interrupts.txt
-
-------------------
-Voltage Regulators
-------------------
-
-Optional child nodes:
-- regulators: container node for regulators following the generic
-  regulator binding in regulator/regulator.txt
-
-  The valid regulator node names for BCM59056 are:
-  	rfldo, camldo1, camldo2, simldo1, simldo2, sdldo, sdxldo,
-	mmcldo1, mmcldo2, audldo, micldo, usbldo, vibldo,
-	csr, iosr1, iosr2, msr, sdsr1, sdsr2, vsr,
-	gpldo1, gpldo2, gpldo3, gpldo4, gpldo5, gpldo6,
-	vbus
-
-Example:
-	pmu: bcm59056@8 {
-		compatible = "brcm,bcm59056";
-		reg = <0x08>;
-		interrupts = <GIC_SPI 215 IRQ_TYPE_LEVEL_HIGH>;
-		regulators {
-			rfldo_reg: rfldo {
-				regulator-min-microvolt = <1200000>;
-				regulator-max-microvolt = <3300000>;
-			};
-
-			...
-		};
-	};

Documentation/devicetree/bindings/mfd/brcm,bcm59056.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/brcm,bcm59056.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom BCM590xx Power Management Units
+
+maintainers:
+  - Artur Weber <[e-mail]>
+
+properties:
+  compatible:
+    const: brcm,bcm59056
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  regulators:
+    type: object
+    $ref: /schemas/regulator/brcm,bcm59056.yaml#
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        pmic@8 {
+            compatible = "brcm,bcm59056";
+            reg = <0x08>;
+            interrupts = <GIC_SPI 215 IRQ_TYPE_LEVEL_HIGH>;
+
+            regulators {
+                rfldo {
+                    regulator-min-microvolt = <1200000>;
+                    regulator-max-microvolt = <3300000>;
+                };
+            };
+        };
+    };

Documentation/devicetree/bindings/regulator/brcm,bcm59056.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/brcm,bcm59056.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom BCM59056 Power Management Unit regulators
+
+description: |
+  This is a part of device tree bindings for the BCM59056 power
+  management unit.
+
+  See Documentation/devicetree/bindings/mfd/brcm,bcm59056.yaml for
+  additional information and example.
+
+maintainers:
+  - Artur Weber <[e-mail]>
+
+patternProperties:
+  "^(cam|sim|mmc)ldo[1-2]$":
+    type: object
+    $ref: /schemas/regulator/regulator.yaml#
+    unevaluatedProperties: false
+
+  "^(rf|sd|sdx|aud|mic|usb|vib)ldo$":
+    type: object
+    $ref: /schemas/regulator/regulator.yaml#
+    unevaluatedProperties: false
+
+  "^(c|m|v)sr$":
+    type: object
+    $ref: /schemas/regulator/regulator.yaml#
+    unevaluatedProperties: false
+
+  "^(io|sd)sr[1-2]$":
+    type: object
+    $ref: /schemas/regulator/regulator.yaml#
+    unevaluatedProperties: false
+
+  "^gpldo[1-6]$":
+    type: object
+    $ref: /schemas/regulator/regulator.yaml#
+    unevaluatedProperties: false
+
+properties:
+  vbus:
+    type: object
+    $ref: /schemas/regulator/regulator.yaml#
+    unevaluatedProperties: false
+
+additionalProperties: false