Merge tag 'mfd-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "Core Frameworks:
   - Allow all MFD Cell properties to be filled in dynamically at
     runtime
   - Skip disabled device nodes and continue to look for subsequent
     devices

  New Device Support:
   - Add support for Lunar Lake-M PCI to Intel LPSS PCI
   - Add support for Denverton to Intel ICH LPC

  New Functionality:
   - Add support for Clocks to Texas Instruments TWL* Core
   - Add support for Interrupts to STMicroelectronics STM32 Timers

  Fix-ups:
   - Convert to new devm-* (managed) power-off API
   - Remove superfluous code
   - Bunch of Device Tree additions, conversions and adaptions
   - Simplify obtaining resources (memory, device data) using unified
     API helpers
   - Trivial coding-style / spelling type clean-ups
   - Constify / staticify changes
   - Expand or edit on existing documentation
   - Convert some Regmap configurations to use the Maple Tree cache
   - Apply new __counted_by() annotation to several data structures
     containing flexible arrays
   - Replace strncpy() with strscpy()

  Bug Fixes:
   - Remove double put creating reference imbalances
   - Ensure headphone/lineout detection gets set when booting with ACPI"

* tag 'mfd-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (73 commits)
  mfd: lpc_ich: Mark *_gpio_offsets data with const
  spmi: rename spmi device lookup helper
  spmi: document spmi_device_from_of() refcounting
  dt-bindings: mfd: armltd: Move Arm board syscon's to separate schema
  mfd: rk8xx: Add support for RK806 power off
  mfd: rk8xx: Add support for standard system-power-controller property
  dt-bindings: mfd: rk806: Allow system-power-controller property
  dt-bindings: mfd: rk8xx: Deprecate rockchip,system-power-controller
  dt-bindings: mfd: max8925: Convert to DT schema format
  mfd: Use i2c_get_match_data() in a selection of drivers
  mfd: Use device_get_match_data() in a bunch of drivers
  mfd: mc13xxx-spi/wm831x-spi: Use spi_get_device_match_data()
  mfd: motorola-cpcap: Drop unnecessary of_match_device() call
  mfd: arizona-spi: Set pdata.hpdet_channel for ACPI enumerated devs
  mfd: qcom-spmi-pmic: Switch to EXPORT_SYMBOL_GPL()
  mfd: qcom-spmi-pmic: Fix revid implementation
  mfd: qcom-spmi-pmic: Fix reference leaks in revid helper
  mfd: intel-m10-bmc: Change contact for ABI docs
  mfd: max8907: Convert to use maple tree register cache
  mfd: max77686: Convert to use maple tree register cache
  ...

32 files changed, 689 insertions, 381 deletions

diff --git a/Documentation/devicetree/bindings/arm/arm,integrator.yaml b/Documentation/devicetree/bindings/arm/arm,integrator.yaml
index 98ff5698ae1f..1bdbd1b7ee38 100644
--- a/Documentation/devicetree/bindings/arm/arm,integrator.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,integrator.yaml
@@ -40,45 +40,6 @@ properties:
         items:
           - const: arm,integrator-sp
 
-  core-module@10000000:
-    type: object
-    description: the root node in the Integrator platforms must contain
-      a core module child node. They are always at physical address
-      0x10000000 in all the Integrator variants.
-    properties:
-      compatible:
-        items:
-          - const: arm,core-module-integrator
-          - const: syscon
-          - const: simple-mfd
-      reg:
-        maxItems: 1
-
-    required:
-      - compatible
-      - reg
-
-patternProperties:
-  "^syscon@[0-9a-f]+$":
-    description: All Integrator boards must provide a system controller as a
-      node in the root of the device tree.
-    type: object
-    properties:
-      compatible:
-        items:
-          - enum:
-              - arm,integrator-ap-syscon
-              - arm,integrator-cp-syscon
-              - arm,integrator-sp-syscon
-          - const: syscon
-      reg:
-        maxItems: 1
-
-    required:
-      - compatible
-      - reg
-
-
 required:
   - compatible
   - core-module@10000000
diff --git a/Documentation/devicetree/bindings/arm/arm,realview.yaml b/Documentation/devicetree/bindings/arm/arm,realview.yaml
index 8d3ed2e4ed31..d1bdee98f9af 100644
--- a/Documentation/devicetree/bindings/arm/arm,realview.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,realview.yaml
@@ -75,43 +75,6 @@ properties:
         type: object
         description: All RealView boards must provide a syscon system controller
           node inside the soc node.
-        properties:
-          compatible:
-            oneOf:
-              - items:
-                  - const: arm,realview-eb11mp-revb-syscon
-                  - const: arm,realview-eb-syscon
-                  - const: syscon
-                  - const: simple-mfd
-              - items:
-                  - const: arm,realview-eb11mp-revc-syscon
-                  - const: arm,realview-eb-syscon
-                  - const: syscon
-                  - const: simple-mfd
-              - items:
-                  - const: arm,realview-eb-syscon
-                  - const: syscon
-                  - const: simple-mfd
-              - items:
-                  - const: arm,realview-pb1176-syscon
-                  - const: syscon
-                  - const: simple-mfd
-              - items:
-                  - const: arm,realview-pb11mp-syscon
-                  - const: syscon
-                  - const: simple-mfd
-              - items:
-                  - const: arm,realview-pba8-syscon
-                  - const: syscon
-                  - const: simple-mfd
-              - items:
-                  - const: arm,realview-pbx-syscon
-                  - const: syscon
-                  - const: simple-mfd
-
-        required:
-          - compatible
-          - reg
 
     required:
       - compatible
diff --git a/Documentation/devicetree/bindings/arm/arm,versatile.yaml b/Documentation/devicetree/bindings/arm/arm,versatile.yaml
index 13e52ba92060..7a3caf6af200 100644
--- a/Documentation/devicetree/bindings/arm/arm,versatile.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,versatile.yaml
@@ -14,6 +14,14 @@ description: |+
   with various pluggable interface boards, in essence the Versatile PB version
   is a superset of the Versatile AB version.
 
+  The root node in the Versatile platforms must contain a core module child
+  node. They are always at physical address 0x10000000 in all the Versatile
+  variants.
+
+  When fitted with the IB2 Interface Board, the Versatile AB will present an
+  optional system controller node which controls the extra peripherals on the
+  interface board.
+
 properties:
   $nodename:
     const: '/'
@@ -32,38 +40,6 @@ properties:
         items:
           - const: arm,versatile-pb
 
-  core-module@10000000:
-    type: object
-    description: the root node in the Versatile platforms must contain
-      a core module child node. They are always at physical address
-      0x10000000 in all the Versatile variants.
-    properties:
-      compatible:
-        items:
-          - const: arm,core-module-versatile
-          - const: syscon
-          - const: simple-mfd
-      reg:
-        maxItems: 1
-
-    required:
-      - compatible
-      - reg
-
-patternProperties:
-  "^syscon@[0-9a-f]+$":
-    type: object
-    description: When fitted with the IB2 Interface Board, the Versatile
-      AB will present an optional system controller node which controls the
-      extra peripherals on the interface board.
-    properties:
-      compatible:
-        contains:
-          const: arm,versatile-ib2-syscon
-    required:
-      - compatible
-      - reg
-
 required:
   - compatible
   - core-module@10000000
diff --git a/Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt b/Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt
index f5021214edec..6c201a2ba8ac 100644
--- a/Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt
+++ b/Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt
@@ -1,7 +1,7 @@
 Texas Instruments TWL family (twl4030) pwrbutton module
 
 This module is part of the TWL4030. For more details about the whole
-chip see Documentation/devicetree/bindings/mfd/twl-family.txt.
+chip see Documentation/devicetree/bindings/mfd/ti,twl.yaml.
 
 This module provides a simple power button event via an Interrupt.
 
diff --git a/Documentation/devicetree/bindings/leds/backlight/max8925-backlight.txt b/Documentation/devicetree/bindings/leds/backlight/max8925-backlight.txt
deleted file mode 100644
index b4cffdaa4137..000000000000
--- a/Documentation/devicetree/bindings/leds/backlight/max8925-backlight.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-88pm860x-backlight bindings
-
-Optional properties:
-  - maxim,max8925-dual-string: whether support dual string
-
-Example:
-
-	backlights {
-		maxim,max8925-dual-string = <0>;
-	};
diff --git a/Documentation/devicetree/bindings/leds/register-bit-led.yaml b/Documentation/devicetree/bindings/leds/register-bit-led.yaml
index ed26ec19ecbd..20930d327ae9 100644
--- a/Documentation/devicetree/bindings/leds/register-bit-led.yaml
+++ b/Documentation/devicetree/bindings/leds/register-bit-led.yaml
@@ -60,7 +60,7 @@ examples:
   - |
 
     syscon@10000000 {
-        compatible = "arm,realview-pb1176-syscon", "syscon";
+        compatible = "arm,realview-pb1176-syscon", "syscon", "simple-mfd";
         reg = <0x10000000 0x1000>;
         #address-cells = <1>;
         #size-cells = <1>;
diff --git a/Documentation/devicetree/bindings/mfd/arm,dev-platforms-syscon.yaml b/Documentation/devicetree/bindings/mfd/arm,dev-platforms-syscon.yaml
new file mode 100644
index 000000000000..46b164ae0831
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/arm,dev-platforms-syscon.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/arm,dev-platforms-syscon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm Ltd Developer Platforms System Controllers
+
+maintainers:
+  - Linus Walleij <linus.walleij@linaro.org>
+
+description:
+  The Arm Ltd Integrator, Realview, and Versatile families of developer
+  platforms are contain various system controller blocks. Often these blocks
+  are part of a daughterboard or motherboard module.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - arm,integrator-ap-syscon
+              - arm,integrator-cp-syscon
+              - arm,integrator-sp-syscon
+              - arm,im-pd1-syscon
+          - const: syscon
+      - items:
+          - enum:
+              - arm,core-module-integrator
+              - arm,integrator-ap-syscon
+              - arm,integrator-cp-syscon
+              - arm,integrator-sp-syscon
+              - arm,realview-eb-syscon
+              - arm,realview-pb1176-syscon
+              - arm,realview-pb11mp-syscon
+              - arm,realview-pba8-syscon
+              - arm,realview-pbx-syscon
+              - arm,versatile-ib2-syscon
+          - const: syscon
+          - const: simple-mfd
+      - items:
+          - enum:
+              - arm,realview-eb11mp-revb-syscon
+              - arm,realview-eb11mp-revc-syscon
+          - const: arm,realview-eb-syscon
+          - const: syscon
+          - const: simple-mfd
+
+  reg:
+    maxItems: 1
+
+  ranges: true
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties:
+  type: object
+
+...
diff --git a/Documentation/devicetree/bindings/mfd/max8925.txt b/Documentation/devicetree/bindings/mfd/max8925.txt
deleted file mode 100644
index 4f0dc6638e5e..000000000000
--- a/Documentation/devicetree/bindings/mfd/max8925.txt
+++ /dev/null
@@ -1,64 +0,0 @@
-* Maxim max8925 Power Management IC
-
-Required parent device properties:
-- compatible : "maxim,max8925"
-- reg : the I2C slave address for the max8925 chip
-- interrupts : IRQ line for the max8925 chip
-- interrupt-controller: describes the max8925 as an interrupt
-  controller (has its own domain)
-- #interrupt-cells : should be 1.
-	- The cell is the max8925 local IRQ number
-
-Optional parent device properties:
-- maxim,tsc-irq: there are 2 IRQ lines for max8925, one is indicated in
-  interrupts property, the other is indicated here.
-
-max8925 consists of a large and varied group of sub-devices:
-
-Device			 Supply Names	 Description
-------			 ------------	 -----------
-max8925-onkey		:		: On key
-max8925-rtc		:		: RTC
-max8925-regulator	:		: Regulators
-max8925-backlight	:		: Backlight
-max8925-touch		:		: Touchscreen
-max8925-power		:		: Charger
-
-Example:
-
-	pmic: max8925@3c {
-		compatible = "maxim,max8925";
-		reg = <0x3c>;
-		interrupts = <1>;
-		interrupt-parent = <&intcmux4>;
-		interrupt-controller;
-		#interrupt-cells = <1>;
-		maxim,tsc-irq = <0>;
-
-		regulators {
-			SDV1 {
-				regulator-min-microvolt = <637500>;
-				regulator-max-microvolt = <1425000>;
-				regulator-boot-on;
-				regulator-always-on;
-			};
-
-			LDO1 {
-				regulator-min-microvolt = <750000>;
-				regulator-max-microvolt = <3900000>;
-				regulator-boot-on;
-				regulator-always-on;
-			};
-
-		};
-		backlight {
-			maxim,max8925-dual-string = <0>;
-		};
-		charger {
-			batt-detect = <0>;
-			topoff-threshold = <1>;
-			fast-charge = <7>;
-			no-temp-support = <0>;
-			no-insert-detect = <0>;
-		};
-	};
diff --git a/Documentation/devicetree/bindings/mfd/max8998.txt b/Documentation/devicetree/bindings/mfd/max8998.txt
deleted file mode 100644
index 4ed52184d081..000000000000
--- a/Documentation/devicetree/bindings/mfd/max8998.txt
+++ /dev/null
@@ -1,125 +0,0 @@
-* Maxim MAX8998, National/TI LP3974 multi-function device
-
-The Maxim MAX8998 is a multi-function device which includes voltage/current
-regulators, real time clock, battery charging controller and several
-other sub-blocks. It is interfaced using an I2C interface. Each sub-block
-is addressed by the host system using different i2c slave address.
-
-PMIC sub-block
---------------
-
-The PMIC sub-block contains a number of voltage and current regulators,
-with controllable parameters and dynamic voltage scaling capability.
-In addition, it includes a real time clock and battery charging controller
-as well. It is accessible at I2C address 0x66.
-
-Required properties:
-- compatible: Should be one of the following:
-    - "maxim,max8998" for Maxim MAX8998
-    - "national,lp3974" or "ti,lp3974" for National/TI LP3974.
-- reg: Specifies the i2c slave address of the pmic block. It should be 0x66.
-
-Optional properties:
-- interrupts: Interrupt specifiers for two interrupt sources.
-  - First interrupt specifier is for main interrupt.
-  - Second interrupt specifier is for power-on/-off interrupt.
-- max8998,pmic-buck1-dvs-gpios: GPIO specifiers for two host gpios used
-  for buck 1 dvs. The format of the gpio specifier depends on the gpio
-  controller.
-- max8998,pmic-buck2-dvs-gpio: GPIO specifier for host gpio used
-  for buck 2 dvs. The format of the gpio specifier depends on the gpio
-  controller.
-- max8998,pmic-buck1-default-dvs-idx: Default voltage setting selected from
-  the possible 4 options selectable by the dvs gpios. The value of this
-  property should be 0, 1, 2 or 3. If not specified or out of range,
-  a default value of 0 is taken.
-- max8998,pmic-buck2-default-dvs-idx: Default voltage setting selected from
-  the possible 2 options selectable by the dvs gpios. The value of this
-  property should be 0 or 1. If not specified or out of range, a default
-  value of 0 is taken.
-- max8998,pmic-buck-voltage-lock: If present, disallows changing of
-  preprogrammed buck dvfs voltages.
-
-Additional properties required if max8998,pmic-buck1-dvs-gpios is defined:
-- max8998,pmic-buck1-dvs-voltage: An array of 4 voltage values in microvolts
-  for buck1 regulator that can be selected using dvs gpio.
-
-Additional properties required if max8998,pmic-buck2-dvs-gpio is defined:
-- max8998,pmic-buck2-dvs-voltage: An array of 2 voltage values in microvolts
-  for buck2 regulator that can be selected using dvs gpio.
-
-Regulators: All the regulators of MAX8998 to be instantiated shall be
-listed in a child node named 'regulators'. Each regulator is represented
-by a child node of the 'regulators' node.
-
-	regulator-name {
-		/* standard regulator bindings here */
-	};
-
-Following regulators of the MAX8998 PMIC block are supported. Note that
-the 'n' in regulator name, as in LDOn or BUCKn, represents the LDO or BUCK
-number as described in MAX8998 datasheet.
-
-	- LDOn
-		  - valid values for n are 2 to 17
-		  - Example: LDO2, LDO10, LDO17
-	- BUCKn
-		  - valid values for n are 1 to 4.
-		  - Example: BUCK1, BUCK2, BUCK3, BUCK4
-
-	- ENVICHG: Battery Charging Current Monitor Output. This is a fixed
-		   voltage type regulator
-
-	- ESAFEOUT1: (ldo19)
-	- ESAFEOUT2: (ld020)
-
-	- CHARGER: main battery charger current control
-
-Standard regulator bindings are used inside regulator subnodes. Check
-  Documentation/devicetree/bindings/regulator/regulator.txt
-for more details.
-
-Example:
-
-	pmic@66 {
-		compatible = "maxim,max8998-pmic";
-		reg = <0x66>;
-		interrupt-parent = <&wakeup_eint>;
-		interrupts = <4 0>, <3 0>;
-
-		/* Buck 1 DVS settings */
-		max8998,pmic-buck1-default-dvs-idx = <0>;
-		max8998,pmic-buck1-dvs-gpios = <&gpx0 0 1 0 0>, /* SET1 */
-					       <&gpx0 1 1 0 0>; /* SET2 */
-		max8998,pmic-buck1-dvs-voltage = <1350000>, <1300000>,
-						 <1000000>, <950000>;
-
-		/* Buck 2 DVS settings */
-		max8998,pmic-buck2-default-dvs-idx = <0>;
-		max8998,pmic-buck2-dvs-gpio = <&gpx0 0 3 0 0>; /* SET3 */
-		max8998,pmic-buck2-dvs-voltage = <1350000>, <1300000>;
-
-		/* Regulators to instantiate */
-		regulators {
-			ldo2_reg: LDO2 {
-				regulator-name = "VDD_ALIVE_1.1V";
-				regulator-min-microvolt = <1100000>;
-				regulator-max-microvolt = <1100000>;
-				regulator-always-on;
-			};
-
-			buck1_reg: BUCK1 {
-				regulator-name = "VDD_ARM_1.2V";
-				regulator-min-microvolt = <950000>;
-				regulator-max-microvolt = <1350000>;
-				regulator-always-on;
-				regulator-boot-on;
-			};
-
-			charger_reg: CHARGER {
-				regulator-name = "CHARGER";
-				regulator-min-microamp = <90000>;
-				regulator-max-microamp = <800000>;
-			};
-		};
-	};
diff --git a/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml b/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml
index da67742c5aa9..0da5cae3852e 100644
--- a/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml
+++ b/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml
@@ -45,8 +45,13 @@ properties:
     patternProperties:
       "^led@[0-3]$":
         $ref: /schemas/leds/common.yaml#
+        unevaluatedProperties: false
         type: object
 
+        properties:
+          reg:
+            maximum: 3
+
     additionalProperties: false
 
   vss1-supply:
diff --git a/Documentation/devicetree/bindings/mfd/maxim,max8925.yaml b/Documentation/devicetree/bindings/mfd/maxim,max8925.yaml
new file mode 100644
index 000000000000..86dd810851ab
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/maxim,max8925.yaml
@@ -0,0 +1,145 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/maxim,max8925.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MAX8925 PMIC from Maxim Integrated.
+
+maintainers:
+  - Lee Jones <lee@kernel.org>
+
+properties:
+  compatible:
+    const: maxim,max8925
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  "#interrupt-cells":
+    const: 1
+    description:
+      The cell is the IRQ number
+
+  maxim,tsc-irq:
+    description: second interrupt from max8925
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  regulators:
+    type: object
+
+    patternProperties:
+      "^SDV[1-3]$|^LDO[1-9]$|^LDO1[0-9]$|^LDO20$":
+        description: regulator configuration for SDV1-3 and LDO1-20
+        $ref: /schemas/regulator/regulator.yaml
+        unevaluatedProperties: false
+
+    additionalProperties: false
+
+  backlight:
+    type: object
+    properties:
+      maxim,max8925-dual-string:
+        description: set to 1 to support dual string
+        $ref: /schemas/types.yaml#/definitions/uint32
+        enum: [0, 1]
+        default: 0
+
+    additionalProperties: false
+
+  charger:
+    type: object
+    properties:
+      batt-detect:
+        description: set to 1 if battery detection via ID pin is supported
+        $ref: /schemas/types.yaml#/definitions/uint32
+        enum: [0, 1]
+        default: 0
+
+      topoff-threshold:
+        description: charging current in topoff mode, configures bits 5-6 in CHG_CNTL1
+        $ref: /schemas/types.yaml#/definitions/uint32
+        minimum: 0
+        maximum: 3
+        default: 0
+
+      fast-charge:
+        description: set charging current in fast mode, configures bits 0-3 in CHG_CNTL1
+        $ref: /schemas/types.yaml#/definitions/uint32
+        minimum: 0
+        maximum: 7
+        default: 0
+
+      no-temp-support:
+        description: set to 1 if temperature sensing is not supported
+        $ref: /schemas/types.yaml#/definitions/uint32
+        enum: [0, 1]
+        default: 0
+
+      no-insert-detect:
+        description: set to 1 if AC detection is not supported
+        $ref: /schemas/types.yaml#/definitions/uint32
+        enum: [0, 1]
+        default: 0
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupt-controller
+  - "#interrupt-cells"
+  - regulators
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        pmic@3c {
+            compatible = "maxim,max8925";
+            reg = <0x3c>;
+            interrupts = <1>;
+            interrupt-parent = <&intcmux4>;
+            interrupt-controller;
+            #interrupt-cells = <1>;
+            maxim,tsc-irq = <0>;
+
+            regulators {
+                SDV1 {
+                    regulator-min-microvolt = <637500>;
+                    regulator-max-microvolt = <1425000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                LDO1 {
+                    regulator-min-microvolt = <750000>;
+                    regulator-max-microvolt = <3900000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+            };
+
+            backlight {
+                maxim,max8925-dual-string = <0>;
+            };
+
+            charger {
+                batt-detect = <0>;
+                topoff-threshold = <1>;
+                fast-charge = <7>;
+                no-temp-support = <0>;
+                no-insert-detect = <0>;
+            };
+        };
+    };
diff --git a/Documentation/devicetree/bindings/mfd/maxim,max8998.yaml b/Documentation/devicetree/bindings/mfd/maxim,max8998.yaml
new file mode 100644
index 000000000000..f3c3f64fd012
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/maxim,max8998.yaml
@@ -0,0 +1,324 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/maxim,max8998.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX8998, National/TI LP3974 Power Management IC
+
+maintainers:
+  - Krzysztof Kozlowski <krzk@kernel.org>
+
+description:
+  The Maxim MAX8998 is a Power Management IC which includes voltage/current
+  regulators, real time clock, battery charging controller and several other
+  sub-blocks. It is interfaced using an I2C interface. Each sub-block is
+  addressed by the host system using different i2c slave address.
+
+properties:
+  compatible:
+    enum:
+      - maxim,max8998
+      - national,lp3974
+      - ti,lp3974
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    minItems: 1
+    items:
+      - description: Main interrupt
+      - description: Power-on/-off interrupt
+
+  max8998,pmic-buck1-dvs-gpios:
+    maxItems: 2
+    description:
+      Two host gpios used for buck1 DVS.
+
+  max8998,pmic-buck2-dvs-gpio:
+    maxItems: 1
+    description:
+      Host gpio used for buck2 DVS.
+
+  max8998,pmic-buck1-default-dvs-idx:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1, 2, 3]
+    default: 0
+