dt-bindings: mfd: maxim,max77802: Convert to dtschema

Convert the MFD part of Maxim MAX77802 PMIC to DT schema format.  The
example DTS was copied from existing DTS (exynos5800-peach-pi.dts), so
keep the license as GPL-2.0-only.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220215075344.31421-3-krzysztof.kozlowski@canonical.com

3 files changed, 195 insertions, 26 deletions

diff --git a/Documentation/devicetree/bindings/mfd/max77802.txt b/Documentation/devicetree/bindings/mfd/max77802.txt
deleted file mode 100644
index 09decac20d91..000000000000
--- a/Documentation/devicetree/bindings/mfd/max77802.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-Maxim MAX77802 multi-function device
-
-The Maxim MAX77802 is a Power Management IC (PMIC) that contains 10 high
-efficiency Buck regulators, 32 Low-DropOut (LDO) regulators used to power
-up application processors and peripherals, a 2-channel 32kHz clock outputs,
-a Real-Time-Clock (RTC) and a I2C interface to program the individual
-regulators, clocks outputs and the RTC.
-
-Bindings for the built-in 32k clock generator block and
-regulators are defined in ../clk/maxim,max77802.txt and
-../regulator/max77802.txt respectively.
-
-Required properties:
-- compatible		: Must be "maxim,max77802"
-- reg			: Specifies the I2C slave address of PMIC block.
-- interrupts		: I2C device IRQ line connected to the main SoC.
-
-Example:
-
-	max77802: pmic@9 {
-		compatible = "maxim,max77802";
-		interrupt-parent = <&intc>;
-		interrupts = <26 IRQ_TYPE_NONE>;
-		reg = <0x09>;
-	};
diff --git a/Documentation/devicetree/bindings/mfd/maxim,max77802.yaml b/Documentation/devicetree/bindings/mfd/maxim,max77802.yaml
new file mode 100644
index 000000000000..baa1346ac5d5
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/maxim,max77802.yaml
@@ -0,0 +1,194 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/maxim,max77802.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX77802 Power Management IC
+
+maintainers:
+  - Javier Martinez Canillas <javier@dowhile0.org>
+  - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
+
+description: |
+  This is a part of device tree bindings for Maxim MAX77802 Power Management
+  Integrated Circuit (PMIC).
+
+  The Maxim MAX77802 is a Power Management IC which includes voltage and
+  current regulators (10 high efficiency Buck regulators and 32 Low-DropOut
+  (LDO)), RTC and clock outputs.
+
+  The MAX77802 provides two 32.768khz clock outputs that can be controlled
+  (gated/ungated) over I2C.  The clock IDs are defined as preprocessor macros
+  in dt-bindings/clock/maxim,max77802.h.
+
+properties:
+  compatible:
+    const: maxim,max77802
+
+  '#clock-cells':
+    const: 1
+
+  interrupts:
+    maxItems: 1
+
+  reg:
+    maxItems: 1
+
+  regulators:
+    $ref: /schemas/regulator/maxim,max77802.yaml
+    description:
+      List of child nodes that specify the regulators.
+
+  inb1-supply:
+    description: Power supply for buck1
+  inb2-supply:
+    description: Power supply for buck2
+  inb3-supply:
+    description: Power supply for buck3
+  inb4-supply:
+    description: Power supply for buck4
+  inb5-supply:
+    description: Power supply for buck5
+  inb6-supply:
+    description: Power supply for buck6
+  inb7-supply:
+    description: Power supply for buck7
+  inb8-supply:
+    description: Power supply for buck8
+  inb9-supply:
+    description: Power supply for buck9
+  inb10-supply:
+    description: Power supply for buck10
+
+  inl1-supply:
+    description: Power supply for LDO8, LDO15
+  inl2-supply:
+    description: Power supply for LDO17, LDO27, LDO30, LDO35
+  inl3-supply:
+    description: Power supply for LDO3, LDO5, LDO7, LDO7
+  inl4-supply:
+    description: Power supply for LDO10, LDO11, LDO13, LDO14
+  inl5-supply:
+    description: Power supply for LDO9, LDO19
+  inl6-supply:
+    description: Power supply for LDO4, LDO21, LDO24, LDO33
+  inl7-supply:
+    description: Power supply for LDO18, LDO20, LDO28, LDO29
+  inl9-supply:
+    description: Power supply for LDO12, LDO23, LDO25, LDO26, LDO32, LDO34
+  inl10-supply:
+    description: Power supply for LDO1, LDO2
+
+  wakeup-source: true
+
+required:
+  - compatible
+  - '#clock-cells'
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/regulator/maxim,max77802.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        pmic@9 {
+            compatible = "maxim,max77802";
+            interrupt-parent = <&gpx3>;
+            interrupts = <1 IRQ_TYPE_NONE>;
+            pinctrl-names = "default";
+            pinctrl-0 = <&max77802_irq>, <&pmic_selb>,
+                        <&pmic_dvs_1>, <&pmic_dvs_2>, <&pmic_dvs_3>;
+            wakeup-source;
+            reg = <0x9>;
+            #clock-cells = <1>;
+
+            inb1-supply = <&tps65090_dcdc2>;
+            inb2-supply = <&tps65090_dcdc1>;
+            inb3-supply = <&tps65090_dcdc2>;
+            inb4-supply = <&tps65090_dcdc2>;
+            inb5-supply = <&tps65090_dcdc1>;
+            inb6-supply = <&tps65090_dcdc2>;
+            inb7-supply = <&tps65090_dcdc1>;
+            inb8-supply = <&tps65090_dcdc1>;
+            inb9-supply = <&tps65090_dcdc1>;
+            inb10-supply = <&tps65090_dcdc1>;
+
+            inl1-supply = <&buck5_reg>;
+            inl2-supply = <&buck7_reg>;
+            inl3-supply = <&buck9_reg>;
+            inl4-supply = <&buck9_reg>;
+            inl5-supply = <&buck9_reg>;
+            inl6-supply = <&tps65090_dcdc2>;
+            inl7-supply = <&buck9_reg>;
+            inl9-supply = <&tps65090_dcdc2>;
+            inl10-supply = <&buck7_reg>;
+
+            regulators {
+                BUCK1 {
+                    regulator-name = "vdd_mif";
+                    regulator-min-microvolt = <800000>;
+                    regulator-max-microvolt = <1300000>;
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-ramp-delay = <12500>;
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                BUCK2 {
+                    regulator-name = "vdd_arm";
+                    regulator-min-microvolt = <800000>;
+                    regulator-max-microvolt = <1500000>;
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-ramp-delay = <12500>;
+                    regulator-coupled-with = <&buck3_reg>;
+                    regulator-coupled-max-spread = <300000>;
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                // ...
+
+                BUCK10 {
+                    regulator-name = "vdd_1v8";
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <1800000>;
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                    };
+                };
+
+                LDO1 {
+                    regulator-name = "vdd_1v0";
+                    regulator-min-microvolt = <1000000>;
+                    regulator-max-microvolt = <1000000>;
+                    regulator-always-on;
+                    regulator-initial-mode = <MAX77802_OPMODE_NORMAL>;
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-mode = <MAX77802_OPMODE_LP>;
+                    };
+                };
+
+                // ...
+
+                LDO35 {
+                    regulator-name = "ldo_35";
+                    regulator-min-microvolt = <1200000>;
+                    regulator-max-microvolt = <1200000>;
+                };
+            };
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 31d1c0926697..823cdb3fe41b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11695,7 +11695,7 @@ MAXIM MAX77802 PMIC REGULATOR DEVICE DRIVER
 M:	Javier Martinez Canillas <javier@dowhile0.org>
 L:	linux-kernel@vger.kernel.org
 S:	Supported
-F:	Documentation/devicetree/bindings/*/*max77802.txt
+F:	Documentation/devicetree/bindings/*/*max77802.yaml
 F:	drivers/regulator/max77802-regulator.c
 F:	include/dt-bindings/*/*max77802.h