dts: update to v5.11-rc1

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

35 files changed, 1273 insertions, 748 deletions

diff --git a/dts/Bindings/iio/adc/adc.txt b/dts/Bindings/iio/adc/adc.txt
deleted file mode 100644
index 5bbaa330a2..0000000000
--- a/dts/Bindings/iio/adc/adc.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-Common ADCs properties
-
-Optional properties for child nodes:
-- bipolar : Boolean, if set the channel is used in bipolar mode.
-- diff-channels : Differential channels muxed for this ADC. The first value
-		specifies the positive input pin, the second value the negative
-		input pin.
-
-Example:
-	adc@0 {
-		compatible = "some,adc";
-		...
-		channel@0 {
-			bipolar;
-			diff-channels = <0 1>;
-			...
-		};
-
-		channel@1 {
-			diff-channels = <2 3>;
-			...
-		};
-	};
diff --git a/dts/Bindings/iio/adc/adc.yaml b/dts/Bindings/iio/adc/adc.yaml
new file mode 100644
index 0000000000..912a7635ed
--- /dev/null
+++ b/dts/Bindings/iio/adc/adc.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic IIO bindings for ADC channels
+
+maintainers:
+  - Jonathan Cameron <jic23@kernel.org>
+
+description:
+  A few properties are defined in a common way ADC channels.
+
+properties:
+  $nodename:
+    pattern: "^channel(@[0-9a-f]+)?$"
+    description:
+      A channel index should match reg.
+
+  reg:
+    maxItems: 1
+
+  label:
+    $ref: /schemas/types.yaml#/definitions/string
+    description: Unique name to identify which channel this is.
+
+  bipolar:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: If provided, the channel is to be used in bipolar mode.
+
+  diff-channels:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    maxItems: 2
+    minItems: 2
+    description:
+      Many ADCs have dual Muxes to allow different input pins to be routed
+      to both the positive and negative inputs of a differential ADC.
+      The first value specifies the positive input pin, the second
+      specifies the negative input pin.
+
+additionalProperties: true
diff --git a/dts/Bindings/iio/adc/adi,ad7124.yaml b/dts/Bindings/iio/adc/adi,ad7124.yaml
index f1c574c896..fb3d0dae9b 100644
--- a/dts/Bindings/iio/adc/adi,ad7124.yaml
+++ b/dts/Bindings/iio/adc/adi,ad7124.yaml
@@ -63,10 +63,10 @@ required:
 
 patternProperties:
   "^channel@([0-9]|1[0-5])$":
+    $ref: "adc.yaml"
     type: object
     description: |
       Represents the external channels which are connected to the ADC.
-      See Documentation/devicetree/bindings/iio/adc/adc.txt.
 
     properties:
       reg:
@@ -88,15 +88,9 @@ patternProperties:
         $ref: /schemas/types.yaml#/definitions/uint32
         enum: [0, 1, 3]
 
-      diff-channels:
-        description: see Documentation/devicetree/bindings/iio/adc/adc.txt
-        items:
-          minimum: 0
-          maximum: 15
+      diff-channels: true
 
-      bipolar:
-        description: see Documentation/devicetree/bindings/iio/adc/adc.txt
-        type: boolean
+      bipolar: true
 
       adi,buffered-positive:
         description: Enable buffered mode for positive input.
@@ -110,6 +104,8 @@ patternProperties:
       - reg
       - diff-channels
 
+    additionalProperties: false
+
 additionalProperties: false
 
 examples:
diff --git a/dts/Bindings/iio/adc/adi,ad7292.yaml b/dts/Bindings/iio/adc/adi,ad7292.yaml
index 108d202b28..a3e39a40c9 100644
--- a/dts/Bindings/iio/adc/adi,ad7292.yaml
+++ b/dts/Bindings/iio/adc/adi,ad7292.yaml
@@ -45,10 +45,10 @@ required:
 
 patternProperties:
   "^channel@[0-7]$":
+    $ref: "adc.yaml"
     type: object
     description: |
       Represents the external channels which are connected to the ADC.
-      See Documentation/devicetree/bindings/iio/adc/adc.txt.
 
     properties:
       reg:
@@ -58,13 +58,13 @@ patternProperties:
           - minimum: 0
             maximum: 7
 
-      diff-channels:
-        description: see Documentation/devicetree/bindings/iio/adc/adc.txt
-        maxItems: 1
+      diff-channels: true
 
     required:
       - reg
 
+    additionalProperties: true
+
 additionalProperties: false
 
 examples:
diff --git a/dts/Bindings/iio/adc/adi,ad7768-1.yaml b/dts/Bindings/iio/adc/adi,ad7768-1.yaml
index 8f32800fe5..924477dfb8 100644
--- a/dts/Bindings/iio/adc/adi,ad7768-1.yaml
+++ b/dts/Bindings/iio/adc/adi,ad7768-1.yaml
@@ -29,6 +29,12 @@ properties:
   interrupts:
     maxItems: 1
 
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
   vref-supply:
     description:
       ADC reference voltage supply
@@ -62,6 +68,24 @@ required:
   - spi-cpha
   - adi,sync-in-gpios
 
+patternProperties:
+  "^channel@([0-9]|1[0-5])$":
+    type: object
+    description: |
+      Represents the external channels which are connected to the device.
+
+    properties:
+      reg:
+        description: |
+          The channel number.
+
+      label:
+        description: |
+          Unique name to identify which channel this is.
+    required:
+      - reg
+    additionalProperties: false
+
 additionalProperties: false
 
 examples:
@@ -85,6 +109,14 @@ examples:
             reset-gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
             clocks = <&ad7768_mclk>;
             clock-names = "mclk";
+
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            channel@0 {
+                reg = <0>;
+                label = "channel_0";
+            };
         };
     };
 ...
diff --git a/dts/Bindings/iio/adc/at91-sama5d2_adc.txt b/dts/Bindings/iio/adc/at91-sama5d2_adc.txt
deleted file mode 100644
index 07c59f301b..0000000000
--- a/dts/Bindings/iio/adc/at91-sama5d2_adc.txt
+++ /dev/null
@@ -1,50 +0,0 @@
-* AT91 SAMA5D2 Analog to Digital Converter (ADC)
-
-Required properties:
-  - compatible: Should be "atmel,sama5d2-adc" or "microchip,sam9x60-adc".
-  - reg: Should contain ADC registers location and length.
-  - interrupts: Should contain the IRQ line for the ADC.
-  - clocks: phandle to device clock.
-  - clock-names: Must be "adc_clk".
-  - vref-supply: Supply used as reference for conversions.
-  - vddana-supply: Supply for the adc device.
-  - atmel,min-sample-rate-hz: Minimum sampling rate, it depends on SoC.
-  - atmel,max-sample-rate-hz: Maximum sampling rate, it depends on SoC.
-  - atmel,startup-time-ms: Startup time expressed in ms, it depends on SoC.
-  - atmel,trigger-edge-type: One of possible edge types for the ADTRG hardware
-  trigger pin. When the specific edge type is detected, the conversion will
-  start. Possible values are rising, falling, or both.
-  This property uses the IRQ edge types values: IRQ_TYPE_EDGE_RISING ,
-  IRQ_TYPE_EDGE_FALLING or IRQ_TYPE_EDGE_BOTH
-
-Optional properties:
-  - dmas: Phandle to dma channel for the ADC.
-  - dma-names: Must be "rx" when dmas property is being used.
-  See ../../dma/dma.txt for details.
-  - #io-channel-cells: in case consumer drivers are attached, this must be 1.
-  See <Documentation/devicetree/bindings/iio/iio-bindings.txt> for details.
-
-Properties for consumer drivers:
-  - Consumer drivers can be connected to this producer device, as specified
-  in <Documentation/devicetree/bindings/iio/iio-bindings.txt>
-  - Channels exposed are specified in:
-  <dt-bindings/iio/adc/at91-sama5d2_adc.txt>
-
-Example:
-
-adc: adc@fc030000 {
-	compatible = "atmel,sama5d2-adc";
-	reg = <0xfc030000 0x100>;
-	interrupts = <40 IRQ_TYPE_LEVEL_HIGH 7>;
-	clocks = <&adc_clk>;
-	clock-names = "adc_clk";
-	atmel,min-sample-rate-hz = <200000>;
-	atmel,max-sample-rate-hz = <20000000>;
-	atmel,startup-time-ms = <4>;
-	vddana-supply = <&vdd_3v3_lp_reg>;
-	vref-supply = <&vdd_3v3_lp_reg>;
-	atmel,trigger-edge-type = <IRQ_TYPE_EDGE_BOTH>;
-	dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(25))>;
-	dma-names = "rx";
-	#io-channel-cells = <1>;
-}
diff --git a/dts/Bindings/iio/adc/at91_adc.txt b/dts/Bindings/iio/adc/at91_adc.txt
deleted file mode 100644
index f65b04fb79..0000000000
--- a/dts/Bindings/iio/adc/at91_adc.txt
+++ /dev/null
@@ -1,83 +0,0 @@
-* AT91's Analog to Digital Converter (ADC)
-
-Required properties:
-  - compatible: Should be "atmel,<chip>-adc"
-    <chip> can be "at91sam9260", "at91sam9g45" or "at91sam9x5"
-  - reg: Should contain ADC registers location and length
-  - interrupts: Should contain the IRQ line for the ADC
-  - clock-names: tuple listing input clock names.
-	Required elements: "adc_clk", "adc_op_clk".
-  - clocks: phandles to input clocks.
-  - atmel,adc-channels-used: Bitmask of the channels muxed and enabled for this
-    device
-  - atmel,adc-startup-time: Startup Time of the ADC in microseconds as
-    defined in the datasheet
-  - atmel,adc-vref: Reference voltage in millivolts for the conversions
-  - atmel,adc-res: List of resolutions in bits supported by the ADC. List size
-		   must be two at least.
-  - atmel,adc-res-names: Contains one identifier string for each resolution
-			 in atmel,adc-res property. "lowres" and "highres"
-			 identifiers are required.
-
-Optional properties:
-  - atmel,adc-use-external-triggers: Boolean to enable the external triggers
-  - atmel,adc-use-res: String corresponding to an identifier from
-		       atmel,adc-res-names property. If not specified, the highest
-		       resolution will be used.
-  - atmel,adc-sleep-mode: Boolean to enable sleep mode when no conversion
-  - atmel,adc-sample-hold-time: Sample and Hold Time in microseconds
-  - atmel,adc-ts-wires: Number of touchscreen wires. Should be 4 or 5. If this
-                        value is set, then the adc driver will enable touchscreen
-                        support.
-    NOTE: when adc touchscreen is enabled, the adc hardware trigger will be
-          disabled. Since touchscreen will occupy the trigger register.
-  - atmel,adc-ts-pressure-threshold: a pressure threshold for touchscreen. It
-                                     makes touch detection more precise.
-
-Optional trigger Nodes:
-  - Required properties:
-    * trigger-name: Name of the trigger exposed to the user
-    * trigger-value: Value to put in the Trigger register
-      to activate this trigger
-  - Optional properties:
-    * trigger-external: Is the trigger an external trigger?
-
-Examples:
-adc0: adc@fffb0000 {
-	#address-cells = <1>;
-	#size-cells = <0>;
-	compatible = "atmel,at91sam9260-adc";
-	reg = <0xfffb0000 0x100>;
-	interrupts = <20 IRQ_TYPE_LEVEL_HIGH 0>;
-	clocks = <&adc_clk>, <&adc_op_clk>;
-	clock-names = "adc_clk", "adc_op_clk";
-	atmel,adc-channels-used = <0xff>;
-	atmel,adc-startup-time = <40>;
-	atmel,adc-use-external-triggers;
-	atmel,adc-vref = <3300>;
-	atmel,adc-res = <8 10>;
-	atmel,adc-res-names = "lowres", "highres";
-	atmel,adc-use-res = "lowres";
-
-	trigger0 {
-		trigger-name = "external-rising";
-		trigger-value = <0x1>;
-		trigger-external;
-	};
-	trigger1 {
-		trigger-name = "external-falling";
-		trigger-value = <0x2>;
-		trigger-external;
-	};
-
-	trigger2 {
-		trigger-name = "external-any";
-		trigger-value = <0x3>;
-		trigger-external;
-	};
-
-	trigger3 {
-		trigger-name = "continuous";
-		trigger-value = <0x6>;
-	};
-};
diff --git a/dts/Bindings/iio/adc/atmel,sama5d2-adc.yaml b/dts/Bindings/iio/adc/atmel,sama5d2-adc.yaml
new file mode 100644
index 0000000000..79c13b408e
--- /dev/null
+++ b/dts/Bindings/iio/adc/atmel,sama5d2-adc.yaml
@@ -0,0 +1,101 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/atmel,sama5d2-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AT91 SAMA5D2 Analog to Digital Converter (ADC)
+
+maintainers:
+  - Ludovic Desroches <ludovic.desroches@atmel.com>
+  - Eugen Hristev <eugen.hristev@microchip.com>
+
+properties:
+  compatible:
+    enum:
+      - atmel,sama5d2-adc
+      - microchip,sam9x60-adc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: adc_clk
+
+  vref-supply: true
+  vddana-supply: true
+
+  atmel,min-sample-rate-hz:
+    description: Minimum sampling rate, it depends on SoC.
+
+  atmel,max-sample-rate-hz:
+    description: Maximum sampling rate, it depends on SoC.
+
+  atmel,startup-time-ms:
+    description: Startup time expressed in ms, it depends on SoC.
+
+  atmel,trigger-edge-type:
+    $ref: '/schemas/types.yaml#/definitions/uint32'
+    description:
+      One of possible edge types for the ADTRG hardware trigger pin.
+      When the specific edge type is detected, the conversion will
+      start. Should be one of IRQ_TYPE_EDGE_RISING, IRQ_TYPE_EDGE_FALLING
+      or IRQ_TYPE_EDGE_BOTH.
+    enum: [1, 2, 3]
+
+  dmas:
+    maxItems: 1
+
+  dma-names:
+    const: rx
+
+  "#io-channel-cells":
+    const: 1
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - vref-supply
+  - vddana-supply
+  - atmel,min-sample-rate-hz
+  - atmel,max-sample-rate-hz
+  - atmel,startup-time-ms
+  - atmel,trigger-edge-type
+
+examples:
+  - |
+    #include <dt-bindings/dma/at91.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    soc {
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        adc@fc030000 {
+            compatible = "atmel,sama5d2-adc";
+            reg = <0xfc030000 0x100>;
+            interrupts = <40 IRQ_TYPE_LEVEL_HIGH 7>;
+            clocks = <&adc_clk>;
+            clock-names = "adc_clk";
+            atmel,min-sample-rate-hz = <200000>;
+            atmel,max-sample-rate-hz = <20000000>;
+            atmel,startup-time-ms = <4>;
+            vddana-supply = <&vdd_3v3_lp_reg>;
+            vref-supply = <&vdd_3v3_lp_reg>;
+            atmel,trigger-edge-type = <IRQ_TYPE_EDGE_BOTH>;
+            dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(25))>;
+            dma-names = "rx";
+            #io-channel-cells = <1>;
+        };
+    };
+...
diff --git a/dts/Bindings/iio/adc/atmel,sama9260-adc.yaml b/dts/Bindings/iio/adc/atmel,sama9260-adc.yaml
new file mode 100644
index 0000000000..e6a1f915b5
--- /dev/null
+++ b/dts/Bindings/iio/adc/atmel,sama9260-adc.yaml
@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/atmel,sama9260-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AT91 sama9260 and similar Analog to Digital Converter (ADC)
+
+maintainers:
+  - Alexandre Belloni <alexandre.belloni@bootlin.com>
+
+properties:
+  compatible:
+    enum:
+      - atmel,at91sam9260-adc
+      - atmel,at91sam9rl-adc
+      - atmel,at91sam9g45-adc
+      - atmel,at91sam9x5-adc
+      - atmel,at91sama5d3-adc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    minItems: 2
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: adc_clk
+      - const: adc_op_clk
+
+  atmel,adc-channels-used:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Bitmask of the channels muxed and enabled for this device
+
+  atmel,adc-startup-time:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Startup Time of the ADC in microseconds as defined in the datasheet
+
+  atmel,adc-vref:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Reference voltage in millivolts for the conversions
+
+  atmel,adc-use-external-triggers:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: Enable the external triggers
+
+  atmel,adc-use-res:
+    $ref: /schemas/types.yaml#/definitions/string
+    description:
+      String corresponding to an identifier from atmel,adc-res-names property.
+      If not specified, the highest resolution will be used.
+    enum:
+      - "lowres"
+      - "highres"
+
+  atmel,adc-sleep-mode:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: Enable sleep mode when no conversion
+
+  atmel,adc-sample-hold-time:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Sample and Hold Time in microseconds
+
+  atmel,adc-ts-wires:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Number of touchscreen wires. Must be set to enable touchscreen.
+      NOTE: when adc touchscreen is enabled, the adc hardware trigger will be
+      disabled. Since touchscreen will occupy the trigger register.
+    enum:
+      - 4
+      - 5
+
+  atmel,adc-ts-pressure-threshold:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Pressure threshold for touchscreen.
+
+  "#io-channel-cells":
+    const: 1
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - atmel,adc-channels-used
+  - atmel,adc-startup-time
+  - atmel,adc-vref
+
+examples:
+  - |
+    #include <dt-bindings/dma/at91.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    soc {
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        adc@fffb0000 {
+            compatible = "atmel,at91sam9260-adc";
+            reg = <0xfffb0000 0x100>;
+            interrupts = <20 IRQ_TYPE_LEVEL_HIGH 0>;
+            clocks = <&adc_clk>, <&adc_op_clk>;
+            clock-names = "adc_clk", "adc_op_clk";
+            atmel,adc-channels-used = <0xff>;
+            atmel,adc-startup-time = <40>;
+            atmel,adc-use-external-triggers;
+            atmel,adc-vref = <3300>;
+            atmel,adc-use-res = "lowres";
+        };
+    };
+...
diff --git a/dts/Bindings/iio/adc/axp20x_adc.txt b/dts/Bindings/iio/adc/axp20x_adc.txt
deleted file mode 100644
index 7a63139139..0000000000
--- a/dts/Bindings/iio/adc/axp20x_adc.txt
+++ /dev/null
@@ -1,48 +0,0 @@
-* X-Powers AXP ADC bindings
-
-Required properties:
-  - compatible: should be one of:
-    - "x-powers,axp209-adc",
-    - "x-powers,axp221-adc",
-    - "x-powers,axp813-adc",
-  - #io-channel-cells: should be 1,
-
-Example:
-
-&axp22x {
-	adc {
-		compatible = "x-powers,axp221-adc";
-		#io-channel-cells = <1>;
-	};
-};
-
-ADC channels and their indexes per variant:
-
-AXP209
-------
- 0 | acin_v
- 1 | acin_i
- 2 | vbus_v
- 3 | vbus_i
- 4 | pmic_temp
- 5 | gpio0_v
- 6 | gpio1_v
- 7 | ipsout_v
- 8 | batt_v
- 9 | batt_chrg_i
-10 | batt_dischrg_i
-
-AXP22x
-------
- 0 | pmic_temp
- 1 | batt_v
- 2 | batt_chrg_i
- 3 | batt_dischrg_i
-
-AXP813
-------
- 0 | pmic_temp
- 1 | gpio0_v
- 2 | batt_v
- 3 | batt_chrg_i
- 4 | batt_dischrg_i
diff --git a/dts/Bindings/iio/adc/brcm,iproc-static-adc.txt b/dts/Bindings/iio/adc/brcm,iproc-static-adc.txt
deleted file mode 100644
index 7b1b1e4086..0000000000
--- a/dts/Bindings/iio/adc/brcm,iproc-static-adc.txt
+++ /dev/null
@@ -1,40 +0,0 @@
-* Broadcom's IPROC Static ADC controller
-
-Broadcom iProc ADC controller has 8 channels 10bit ADC.
-Allows user to convert analog input voltage values to digital.
-
-Required properties:
-
-- compatible: Must be "brcm,iproc-static-adc"
-
-- adc-syscon: Handler of syscon node defining physical base address of the
-  controller and length of memory mapped region.
-
-- #io-channel-cells = <1>; As ADC has multiple outputs
-  refer to Documentation/devicetree/bindings/iio/iio-bindings.txt for details.
-
-- io-channel-ranges:
-  refer to Documentation/devicetree/bindings/iio/iio-bindings.txt for details.
-
-- clocks: Clock used for this block.
-
-- clock-names: Clock name should be given as tsc_clk.
-
-- interrupts: interrupt line number.
-
-For example:
-
-	ts_adc_syscon: ts_adc_syscon@180a6000 {
-		compatible = "brcm,iproc-ts-adc-syscon","syscon";
-		reg = <0x180a6000 0xc30>;
-	};
-
-	adc: adc@180a6000 {
-		compatible = "brcm,iproc-static-adc";
-		adc-syscon = <&ts_adc_syscon>;
-		#io-channel-cells = <1>;
-		io-channel-ranges;
-		clocks = <&asiu_clks BCM_CYGNUS_ASIU_ADC_CLK>;
-		clock-names = "tsc_clk";
-		interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
-	};
diff --git a/dts/Bindings/iio/adc/brcm,iproc-static-adc.yaml b/dts/Bindings/iio/adc/brcm,iproc-static-adc.yaml
new file mode 100644
index 0000000000..c562d25bee
--- /dev/null
+++ b/dts/Bindings/iio/adc/brcm,iproc-static-adc.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/brcm,iproc-static-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom's IPROC Static ADC controller
+
+maintainers:
+  - Raveendra Padasalagi <raveendra.padasalagi@broadcom.com>
+
+description: |
+  Broadcom iProc ADC controller has 8 10bit channels
+
+properties:
+  compatible:
+    const: brcm,iproc-static-adc
+
+  adc-syscon:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      syscon node defining physical base address of the controller and length
+      of memory mapped region.
+
+  "#io-channel-cells":
+    const: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: tsc_clk
+
+  interrupts:
+    maxItems: 1
+
+additionalProperties: false
+
+required:
+  - compatible
+  - adc-syscon
+  - "#io-channel-cells"
+  - clocks
+  - clock-names
+  - interrupts
+
+examples:
+  - |
+    #include <dt-bindings/clock/bcm-cygnus.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    soc {
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        ts_adc_syscon: ts_adc_syscon@180a6000 {
+            compatible = "brcm,iproc-ts-adc-syscon","syscon";
+            reg = <0x180a6000 0xc30>;
+        };
+
+        adc {
+            compatible = "brcm,iproc-static-adc";
+            adc-syscon = <&ts_adc_syscon>;
+            #io-channel-cells = <1>;
+            clocks = <&asiu_clks BCM_CYGNUS_ASIU_ADC_CLK>;
+            clock-names = "tsc_clk";
+            interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
+        };
+    };
+...
diff --git a/dts/Bindings/iio/adc/envelope-detector.txt b/dts/Bindings/iio/adc/envelope-detector.txt
deleted file mode 100644
index 27544bdd44..0000000000
--- a/dts/Bindings/iio/adc/envelope-detector.txt
+++ /dev/null
@@ -1,54 +0,0 @@
-Bindings for ADC envelope detector using a DAC and a comparator
-
-The DAC is used to find the peak level of an alternating voltage input
-signal by a binary search using the output of a comparator wired to
-an interrupt pin. Like so:
-                          _
-                         | \
-    input +------>-------|+ \
-                         |   \
-           .-------.     |    }---.
-           |       |     |   /    |
-           |    dac|-->--|- /     |
-           |       |     |_/      |
-           |       |              |
-           |       |              |
-           |    irq|------<-------'
-           |       |
-           '-------'
-
-Required properties:
-- compatible: Should be "axentia,tse850-envelope-detector"
-- io-channels: Channel node of the dac to be used for comparator input.
-- io-channel-names: Should be "dac".
-- interrupt specification for one client interrupt,
-  see ../../interrupt-controller/interrupts.txt for details.
-- interrupt-names: Should be "comp".
-
-Example:
-
-	&i2c {
-		dpot: mcp4651-104@28 {
-			compatible = "microchip,mcp4651-104";
-			reg = <0x28>;
-			#io-channel-cells = <1>;
-		};
-	};
-
-	dac: dac {
-		compatible = "dpot-dac";
-		vref-supply = <&reg_3v3>;
-		io-channels = <&dpot 0>;
-		io-channel-names = "dpot";
-		#io-channel-cells = <1>;
-	};
-
-	envelope-detector {
-		compatible = "axentia,tse850-envelope-detector";
-		io-channels = <&dac 0>;
-		io-channel-names = "dac";
-
-		interrupt-parent = <&gpio>;
-		interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
-		interrupt-names = "comp";
-	};
diff --git a/dts/Bindings/iio/adc/envelope-detector.yaml b/dts/Bindings/iio/adc/envelope-detector.yaml
new file mode 100644
index 0000000000..296d5459b4
--- /dev/null
+++ b/dts/Bindings/iio/adc/envelope-detector.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/envelope-detector.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ADC envelope detector using a DAC and a comparator
+
+maintainers:
+  - Peter Rosin <peda@axentia.se>
+
+description: |
+  The DAC is used to find the peak level of an alternating voltage input
+  signal by a binary search using the output of a comparator wired to
+  an interrupt pin. Like so:
+                          _
+                         | \
+    input +------>-------|+ \
+                         |   \
+           .-------.     |    }---.
+           |       |     |   /    |
+           |    dac|-->--|- /     |
+           |       |     |_/      |
+           |       |              |
+           |       |              |
+           |    irq|------<-------'
+           |       |
+           '-------'
+
+properties:
+  compatible:
+    const: axentia,tse850-envelope-detector
+
+  io-channels:
+    maxItems: 1
+    description: Channel node of the dac to be used for comparator input.
+
+  io-channel-names:
+    const: dac
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-names:
+    const: comp
+
+required:
+  - compatible
+  - io-channels
+  - io-channel-names
+  - interrupts
+  - interrupt-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        dpot: dpot@28 {
+            compatible = "microchip,mcp4651-104";
+            reg = <0x28>;
+            #io-channel-cells = <1>;
+        };
+    };
+
+    dac: dac {
+        compatible = "dpot-dac";
+        vref-supply = <&reg_3v3>;
+        io-channels = <&dpot 0>;
+        io-channel-names = "dpot";
+        #io-channel-cells = <1>;
+    };
+
+    envelope-detector {
+        compatible = "axentia,tse850-envelope-detector";
+        io-channels = <&dac 0>;
+        io-channel-names = "dac";
+
+        interrupt-parent = <&gpio>;
+        interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
+        interrupt-names = "comp";
+    };
+...
diff --git a/dts/Bindings/iio/adc/lltc,ltc2496.yaml b/dts/Bindings/iio/adc/lltc,ltc2496.yaml
index 6a991e9f78..2716d4e953 100644
--- a/dts/Bindings/iio/adc/lltc,ltc2496.yaml
+++ b/dts/Bindings/iio/adc/lltc,ltc2496.yaml
@@ -17,8 +17,7 @@ properties:
       - lltc,ltc2496
 
   vref-supply:
-    description: phandle to an external regulator providing the reference voltage
-    $ref: /schemas/types.yaml#/definitions/phandle
+    description: Power supply for the reference voltage
 
   reg:
     description: spi chipselect number according to the usual spi bindings
diff --git a/dts/Bindings/iio/adc/maxim,max1027.yaml b/dts/Bindings/iio/adc/maxim,max1027.yaml
new file mode 100644
index 0000000000..46b7747076
--- /dev/null
+++ b/dts/Bindings/iio/adc/maxim,max1027.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/maxim,max1027.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX1027 and similar ADCs
+
+maintainers:
+  - Miquel Raynal <miquel.raynal@bootlin.com>
+  - Philippe Reynes <tremyfr@yahoo.fr>
+
+description: |
+  300ks/s SPI ADCs with temperature sensors.
+
+properties:
+  compatible:
+    enum:
+        # 10-bit 8 channels
+      - maxim,max1027
+        # 10-bit 12 channels
+      - maxim,max1029
+        # 10-bit 16 channels
+      - maxim,max1031
+         # 12-bit 8 channels
+      - maxim,max1227
+         # 12-bit 12 channels
+      - maxim,max1229
+         # 12-bit 16 channels
+      - maxim,max1231
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  spi-max-frequency:
+    maximum: 10000000
+
+  "#io-channel-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    spi {
+       #address-cells = <1>;
+       #size-cells = <0>;
+        maxadc: adc@0 {
+            compatible = "maxim,max1027";
+            reg = <0>;
+            #io-channel-cells = <1>;
+            interrupt-parent = <&gpio5>;
+            interrupts = <15 IRQ_TYPE_EDGE_RISING>;
+            spi-max-frequency = <1000000>;
+        };
+    };
+...
diff --git a/dts/Bindings/iio/adc/mediatek,mt2701-auxadc.yaml b/dts/Bindings/iio/adc/mediatek,mt2701-auxadc.yaml
new file mode 100644
index 0000000000..5b21a9fba5
--- /dev/null
+++ b/dts/Bindings/iio/adc/mediatek,mt2701-auxadc.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/mediatek,mt2701-auxadc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek AUXADC - ADC on Mediatek mobile SoC (mt65xx/mt81xx/mt27xx)
+
+maintainers:
+  - Zhiyong Tao <zhiyong.tao@mediatek.com>
+  - Matthias Brugger <matthias.bgg@gmail.com>
+
+description: |
+  The Auxiliary Analog/Digital Converter (AUXADC) is an ADC found
+  in some Mediatek SoCs which among other things measures the temperatures
+  in the SoC. It can be used directly with register accesses, but it is also
+  used by thermal controller which reads the temperatures from the AUXADC
+  directly via its own bus interface. See mediatek-thermal bindings
+  for the Thermal Controller which holds a phandle to the AUXADC.
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - mediatek,mt2701-auxadc
+          - mediatek,mt2712-auxadc
+          - mediatek,mt6765-auxadc
+          - mediatek,mt7622-auxadc
+          - mediatek,mt8173-auxadc
+      - items:
+          - enum:
+              - mediatek,mt7623-auxadc
+          - const: mediatek,mt2701-auxadc
+      - items:
+          - enum:
+              - mediatek,mt8183-auxadc
+              - mediatek,mt8516-auxadc
+          - const: mediatek,mt8173-auxadc
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: main
+
+  "#io-channel-cells":
+    const: 1
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - "#io-channel-cells"
+
+examples:
+  - |
+    #include <dt-bindings/clock/mt8183-clk.h>
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        adc@11001000 {
+            compatible = "mediatek,mt8183-auxadc",
+                         "mediatek,mt8173-auxadc";
+            reg = <0 0x11001000 0 0x1000>;
+            clocks = <&infracfg CLK_INFRA_AUXADC>;
+            clock-names = "main";
+            #io-channel-cells = <1>;
+        };
+    };
+...
diff --git a/dts/Bindings/iio/adc/mediatek,mt6360-adc.yaml b/dts/Bindings/iio/adc/mediatek,mt6360-adc.yaml
new file mode 100644
index 0000000000..db4e3613c1
--- /dev/null
+++ b/dts/Bindings/iio/adc/mediatek,mt6360-adc.yaml
@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/mediatek,mt6360-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek MT6360 and similar ADCs
+
+maintainers:
+  - Gene Chen <gene_chen@richtek.com>
+
+properties:
+  compatible:
+    const: mediatek,mt6360-adc
+
+  "#io-channel-cells":
+    const: 1
+
+required:
+  - compatible
+  - "#io-channel-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    adc {
+      compatible = "mediatek,mt6360-adc";
+      #io-channel-cells = <1>;
+    };
+...
diff --git a/dts/Bindings/iio/adc/mt6577_auxadc.txt b/dts/Bindings/iio/adc/mt6577_auxadc.txt
deleted file mode 100644
index 78c06e05c8..0000000000
--- a/dts/Bindings/iio/adc/mt6577_auxadc.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-* Mediatek AUXADC - Analog to Digital Converter on Mediatek mobile soc (mt65xx/mt81xx/mt27xx)
-===============
-
-The Auxiliary Analog/Digital Converter (AUXADC) is an ADC found
-in some Mediatek SoCs which among other things measures the temperatures
-in the SoC. It can be used directly with register accesses, but it is also
-used by thermal controller which reads the temperatures from the AUXADC
-directly via its own bus interface. See
-Documentation/devicetree/bindings/thermal/mediatek-thermal.txt
-for the Thermal Controller which holds a phandle to the AUXADC.
-
-Required properties:
-  - compatible: Should be one of:
-    - "mediatek,mt2701-auxadc": For MT2701 family of SoCs
-    - "mediatek,mt2712-auxadc": For MT2712 family of SoCs
-    - "mediatek,mt6765-auxadc": For MT6765 family of SoCs
-    - "mediatek,mt7622-auxadc": For MT7622 family of SoCs
-    - "mediatek,mt8173-auxadc": For MT8173 family of SoCs
-    - "mediatek,mt8183-auxadc", "mediatek,mt8173-auxadc": For MT8183 family of SoCs
-  - reg: Address range of the AUXADC unit.
-  - clocks: Should contain a clock specifier for each entry in clock-names
-  - clock-names: Should contain "main".
-  - #io-channel-cells: Should be 1, see ../iio-bindings.txt
-
-Example:
-
-auxadc: adc@11001000 {
-	compatible = "mediatek,mt2701-auxadc";
-	reg = <0 0x11001000 0 0x1000>;
-	clocks = <&pericfg CLK_PERI_AUXADC>;
-	clock-names = "main";
-	#io-channel-cells = <1>;
-};
diff --git a/dts/Bindings/iio/adc/palmas-gpadc.txt b/dts/Bindings/iio/adc/palmas-gpadc.txt
deleted file mode 100644
index 4bb9a86065..0000000000
--- a/dts/Bindings/iio/adc/palmas-gpadc.txt
+++ /dev/null
@@ -1,48 +0,0 @@
-* Palmas general purpose ADC IP block devicetree bindings
-
-Channels list:
-	0 battery type
-	1 battery temp NTC (optional current source)
-	2 GP
-	3 temp (with ext. diode, optional current source)
-	4 GP
-	5 GP
-	6 VBAT_SENSE
-	7 VCC_SENSE
-	8 Backup Battery voltage
-	9 external charger (VCHG)
-	10 VBUS
-	11 DC-DC current probe (how does this work?)
-	12 internal die temp
-	13 internal die temp
-	14 USB ID pin voltage
-	15 test network
-
-Required properties:
-- compatible : Must be "ti,palmas-gpadc".
-- #io-channel-cells: Should be set to <1>.
-
-Optional sub-nodes:
-ti,channel0-current-microamp: Channel 0 current in uA.
-	Values are rounded to derive 0uA, 5uA, 15uA, 20uA.
-ti,channel3-current-microamp: Channel 3 current in uA.
-	Values are rounded to derive 0uA, 10uA, 400uA, 800uA.
-ti,enable-extended-delay: Enable extended delay.
-
-Example:
-
-pmic {
-	compatible = "ti,twl6035-pmic", "ti,palmas-pmic";
-	...
-	gpadc {
-		compatible = "ti,palmas-gpadc";
-		interrupts = <18 0
-			      16 0
-			      17 0>;
-		#io-channel-cells = <1>;
-		ti,channel0-current-microamp = <5>;
-		ti,channel3-current-microamp = <10>;
-		};
-	};
-	...
-};
diff --git a/dts/Bindings/iio/adc/qcom,pm8018-adc.yaml b/dts/Bindings/iio/adc/qcom,pm8018-adc.yaml
new file mode 100644
index 0000000000..d186b713d6
--- /dev/null
+++ b/dts/Bindings/iio/adc/qcom,pm8018-adc.yaml
@@ -0,0 +1,166 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/qcom,pm8018-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm's PM8xxx voltage XOADC
+
+maintainers:
+  - Linus Walleij <linus.walleij@linaro.org>
+
+description: |
+  The Qualcomm PM8xxx PMICs contain a HK/XO ADC (Housekeeping/Crystal
+  oscillator ADC) encompassing PM8018, PM8038, PM8058 and PM8921.
+
+properties:
+  compatible:
+    enum:
+      - qcom,pm8018-adc
+      - qcom,pm8038-adc
+      - qcom,pm8058-adc
+      - qcom,pm8921-adc
+
+  reg:
+    maxItems: 1
+    description:
+      ADC base address in the PMIC, typically 0x197.
+
+  xoadc-ref-supply:
+    description:
+      The reference voltage may vary with PMIC variant but is typically
+      something like 2.2 or 1.8V.
+
+  interrupts:
+    maxItems: 1
+
+  "#address-cells":
+    const: 2
+    description:
+      The first cell is the prescaler (on PM8058) or premux (on PM8921)
+      with two valid bits  so legal values are 0x00, 0x01 or 0x02.
+      The second cell is the main analog mux setting (0x00..0x0f).
+      The combination of prescaler/premux and analog mux uniquely addresses
+      a hardware channel on all systems.
+
+  "#size-cells":
+    const: 0
+
+  "#io-channel-cells":
+    const: 2
+    description:
+      The cells are precaler or premux followed by the analog muxing line.
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - "#io-channel-cells"
+  - "#address-cells"
+  - "#size-cells"
+  - adc-channel@c
+  - adc-channel@d
+  - adc-channel@f
+
+patternProperties:
+  "^(adc-channel@)[0-9a-f]$":
+    type: object
+    description: |
+      ADC channel specific configuration.
+      Note that channels c, d and f must be present for calibration.
+      These three nodes are used for absolute and ratiometric calibration
+      and only need to have these reg values: they are by hardware definition
+      1:1 ratio converters that sample 625, 1250 and 0 milliV and create
+      an interpolation calibration for all other ADCs.
+
+    properties:
+      reg:
+        maxItems: 1
+
+      qcom,decimation:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description: |
+          This parameter is used to decrease the ADC sampling rate.
+          Quicker measurements can be made by reducing the decimation ratio.
+          Valid values are 512, 1024, 2048, 4096.
+          If the property is not found, a default value of 512 will be used.
+
+      qcom,ratiometric:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description: |
+          Channel calibration type. If this property is specified
+          VADC will use a special voltage references for channel
+          calibration. The available references are specified in the
+          as a u32 value setting (see below) and it is compulsory
+          to also specify this reference if ratiometric calibration
+          is selected.
+
+          If the property is not found, the channel will be
+          calibrated with the 0.625V and 1.25V reference channels, also
+          known as an absolute calibration.
+
+          The reference voltage pairs when using ratiometric calibration:
+          0 = XO_IN/XOADC_GND
+          1 = PMIC_IN/XOADC_GND
+          2 = PMIC_IN/BMS_CSP
+          3 (invalid)
+          4 = XOADC_GND/XOADC_GND
+          5 = XOADC_VREF/XOADC_GND
+
+    additionalProperties: false
+
+    required:
+      - reg
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    pmic {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        adc@197 {
+            compatible = "qcom,pm8058-adc";
+            reg = <0x197>;
+            interrupts-extended = <&pm8058 76 IRQ_TYPE_EDGE_RISING>;
+            #address-cells = <2>;
+            #size-cells = <0>;
+            #io-channel-cells = <2>;
+
+            vcoin: adc-channel@0 {
+                reg = <0x00 0x00>;
+            };
+            vbat: adc-channel@1 {
+                reg = <0x00 0x01>;
+            };
+            dcin: adc-channel@2 {
+                reg = <0x00 0x02>;
+            };
+            ichg: adc-channel@3 {
+                reg = <0x00 0x03>;
+            };
+            vph_pwr: adc-channel@4 {
+                reg = <0x00 0x04>;
+            };
+            usb_vbus: adc-channel@a {
+                reg = <0x00 0x0a>;
+            };
+            die_temp: adc-channel@b {
+                reg = <0x00 0x0b>;
+            };
+            ref_625mv: adc-channel@c {
+                reg = <0x00 0x0c>;
+            };
+            ref_1250mv: adc-channel@d {
+                reg = <0x00 0x0d>;
+            };
+            ref_325mv: adc-channel@e {
+                reg = <0x00 0x0e>;
+            };
+            ref_muxoff: adc-channel@f {
+                reg = <0x00 0x0f>;
+           };
+        };
+    };
+...
diff --git a/dts/Bindings/iio/adc/qcom,pm8xxx-xoadc.txt b/dts/Bindings/iio/adc/qcom,pm8xxx-xoadc.txt
deleted file mode 100644
index 3ae0612778..0000000000
--- a/dts/Bindings/iio/adc/qcom,pm8xxx-xoadc.txt
+++ /dev/null
@@ -1,157 +0,0 @@
-Qualcomm's PM8xxx voltage XOADC
-
-The Qualcomm PM8xxx PMICs contain a HK/XO ADC (Housekeeping/Crystal
-oscillator ADC) encompassing PM8018, PM8038, PM8058 and PM8921.
-
-Required properties:
-
-- compatible: should be one of:
-  "qcom,pm8018-adc"
-  "qcom,pm8038-adc"
-  "qcom,pm8058-adc"
-  "qcom,pm8921-adc"
-
-- reg: should contain the ADC base address in the PMIC, typically
-  0x197.
-
-- xoadc-ref-supply: should reference a regulator that can supply
-  a reference voltage on demand. The reference voltage may vary
-  with PMIC variant but is typically something like 2.2 or 1.8V.
-
-The following required properties are standard for IO channels, see
-iio-bindings.txt for more details, but notice that this particular
-ADC has a special addressing scheme that require two cells for
-identifying each ADC channel:
-
-- #address-cells: should be set to <2>, the first cell is the
-  prescaler (on PM8058) or premux (on PM8921) with two valid bits
-  so legal values are 0x00, 0x01 or 0x02. The second cell
-  is the main analog mux setting (0x00..0x0f). The combination
-  of prescaler/premux and analog mux uniquely addresses a hardware
-  channel on all systems.
-
-- #size-cells: should be set to <0>
-
-- #io-channel-cells: should be set to <2>, again the cells are
-  precaler or premux followed by the analog muxing line.
-
-- interrupts: should refer to the parent PMIC interrupt controller
-  and reference the proper ADC interrupt.
-
-Required subnodes:
-
-The ADC channels are configured as subnodes of the ADC.
-
-Since some of them are used for calibrating the ADC, these nodes are
-compulsory:
-
-adc-channel@c {
-	reg = <0x00 0x0c>;
-};
-
-adc-channel@d {
-	reg = <0x00 0x0d>;
-};
-
-adc-channel@f {
-	reg = <0x00 0x0f>;
-};
-
-These three nodes are used for absolute and ratiometric calibration
-and only need to have these reg values: they are by hardware definition
-1:1 ratio converters that sample 625, 1250 and 0 milliV and create
-an interpolation calibration for all other ADCs.
-
-Optional subnodes: any channels other than channels [0x00 0x0c],
-[0x00 0x0d] and [0x00 0x0f] are optional.
-
-Required channel node properties:
-
-- reg: should contain the hardware channel number in the range
-  0 .. 0xff (8 bits).
-
-Optional channel node properties:
-
-- qcom,decimation:
-  Value type: <u32>
-  Definition: This parameter is used to decrease the ADC sampling rate.
-          Quicker measurements can be made by reducing the decimation ratio.
-          Valid values are 512, 1024, 2048, 4096.
-          If the property is not found, a default value of 512 will be used.
-
-- qcom,ratiometric:
-  Value type: <u32>
-  Definition: Channel calibration type. If this property is specified
-          VADC will use a special voltage references for channel
-          calibration. The available references are specified in the
-	  as a u32 value setting (see below) and it is compulsory
-	  to also specify this reference if ratiometric calibration
-	  is selected.
-
-	  If the property is not found, the channel will be
-          calibrated with the 0.625V and 1.25V reference channels, also
-          known as an absolute calibration.
-  The reference voltage pairs when using ratiometric calibration:
-	  0 = XO_IN/XOADC_GND
-	  1 = PMIC_IN/XOADC_GND
-	  2 = PMIC_IN/BMS_CSP
-	  3 (invalid)
-	  4 = XOADC_GND/XOADC_GND
-	  5 = XOADC_VREF/XOADC_GND
-
-Example:
-
-xoadc: xoadc@197 {
-	compatible = "qcom,pm8058-adc";
-	reg = <0x197>;
-	interrupts-extended = <&pm8058 76 IRQ_TYPE_EDGE_RISING>;
-	#address-cells = <2>;
-	#size-cells = <0>;
-	#io-channel-cells = <2>;
-
-	vcoin: adc-channel@0 {
-		reg = <0x00 0x00>;
-	};
-	vbat: adc-channel@1 {
-		reg = <0x00 0x01>;
-	};
-	dcin: adc-channel@2 {
-		reg = <0x00 0x02>;
-	};
-	ichg: adc-channel@3 {
-		reg = <0x00 0x03>;
-	};
-	vph_pwr: adc-channel@4 {
-		reg = <0x00 0x04>;
-	};
-	usb_vbus: adc-channel@a {
-		reg = <0x00 0x0a>;
-	};
-	die_temp: adc-channel@b {
-		reg = <0x00 0x0b>;
-	};
-	ref_625mv: adc-channel@c {
-		reg = <0x00 0x0c>;
-	};
-	ref_1250mv: adc-channel@d {
-		reg = <0x00 0x0d>;
-	};
-	ref_325mv: adc-channel@e {
-		reg = <0x00 0x0e>;
-	};
-	ref_muxoff: adc-channel@f {
-		reg = <0x00 0x0f>;
-	};
-};
-
-/* IIO client node */
-iio-hwmon {
-	compatible = "iio-hwmon";
-	io-channels = <&xoadc 0x00 0x01>, /* Battery */
-		    <&xoadc 0x00 0x02>, /* DC in (charger) */
-		    <&xoadc 0x00 0x04>, /* VPH the main system voltage */
-		    <&xoadc 0x00 0x0b>, /* Die temperature */
-		    <&xoadc 0x00 0x0c>, /* Reference voltage 1.25V */
-		    <&xoadc 0x00 0x0d>, /* Reference voltage 0.625V */
-		    <&xoadc 0x00 0x0e>; /* Reference voltage 0.325V */
-};
diff --git a/dts/Bindings/iio/adc/qcom,spmi-iadc.txt b/dts/Bindings/iio/adc/qcom,spmi-iadc.txt
deleted file mode 100644
index 4e36d6e2f7..0000000000
--- a/dts/Bindings/iio/adc/qcom,spmi-iadc.txt
+++ /dev/null
@@ -1,46 +0,0 @@
-Qualcomm's SPMI PMIC current ADC
-
-QPNP PMIC current ADC (IADC) provides interface to clients to read current.
-A 16 bit ADC is used for current measurements. IADC can measure the current
-through an external resistor (channel 1) or internal (built-in) resistor
-(channel 0). When using an external resistor it is to be described by
-qcom,external-resistor-micro-ohms property.
-
-IADC node:
-
-- compatible:
-    Usage: required
-    Value type: <string>
-    Definition: Should contain "qcom,spmi-iadc".
-
-- reg:
-    Usage: required
-    Value type: <prop-encoded-array>
-    Definition: IADC base address and length in the SPMI PMIC register map
-
-- interrupts:
-    Usage: optional
-    Value type: <prop-encoded-array>
-    Definition: End of ADC conversion.
-
-- qcom,external-resistor-micro-ohms:
-    Usage: optional
-    Value type: <u32>
-    Definition: Sense resister value in micro Ohm.
-                If not defined value of 10000 micro Ohms will be used.
-
-Example:
-	/* IADC node */
-	pmic_iadc: iadc@3600 {
-		compatible = "qcom,spmi-iadc";
-		reg = <0x3600 0x100>;
-		interrupts = <0x0 0x36 0x0 IRQ_TYPE_EDGE_RISING>;
-		qcom,external-resistor-micro-ohms = <10000>;
-		#io-channel-cells  = <1>;
-	};
-
-	/* IIO client node */
-	bat {
-		io-channels = <&pmic_iadc  0>;
-		io-channel-names = "iadc";
-	};
diff --git a/dts/Bindings/iio/adc/qcom,spmi-iadc.yaml b/dts/Bindings/iio/adc/qcom,spmi-iadc.yaml
new file mode 100644
index 0000000000..27e3108661
--- /dev/null
+++ b/dts/Bindings/iio/adc/qcom,spmi-iadc.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/qcom,spmi-iadc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm's SPMI PMIC current ADC
+
+maintainers:
+  - Jonathan Cameron <jic23@kernel.org>
+
+description: |
+  QPNP PMIC current ADC (IADC) provides interface to clients to read current.
+  A 16 bit ADC is used for current measurements. IADC can measure the current
+  through an external resistor (channel 1) or internal (built-in) resistor
+  (channel 0). When using an external resistor it is to be described by
+  qcom,external-resistor-micro-ohms property.
+
+properties:
+  compatible:
+    const: qcom,spmi-iadc
+
+  reg:
+    description: IADC base address and length in the SPMI PMIC register map
+    maxItems: 1
+
+  qcom,external-resistor-micro-ohms:
+    description:
+      Sensor resistor value. If not defined value of 10000 micro Ohms
+      will be used.
+
+  interrupts:
+    maxItems: 1
+    description:
+      End of conversion interrupt.
+
+  "#io-channel-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    spmi_bus {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        pmic_iadc: adc@3600 {
+            compatible = "qcom,spmi-iadc";
+            reg = <0x3600 0x100>;
+            interrupts = <0x0 0x36 0x0 IRQ_TYPE_EDGE_RISING>;
+            qcom,external-resistor-micro-ohms = <10000>;
+            #io-channel-cells  = <1>;
+        };
+    };
+...
diff --git a/dts/Bindings/iio/adc/qcom,spmi-vadc.yaml b/dts/Bindings/iio/adc/qcom,spmi-vadc.yaml
index 7f4f827c57..95cc705b96 100644
--- a/dts/Bindings/iio/adc/qcom,spmi-vadc.yaml
+++ b/dts/Bindings/iio/adc/qcom,spmi-vadc.yaml
@@ -48,8 +48,6 @@ properties:
     description:
       End of conversion interrupt.
 
-  io-channel-ranges: true
-
 required:
   - compatible
   - reg
@@ -249,7 +247,6 @@ examples:
         #address-cells = <1>;
         #size-cells = <0>;
         #io-channel-cells = <1>;
-        io-channel-ranges;
 
         /* Channel node */
         adc-chan@39 {
diff --git a/dts/Bindings/iio/adc/renesas,gyroadc.txt b/dts/Bindings/iio/adc/renesas,gyroadc.txt
deleted file mode 100644
index df5b9f2ad8..0000000000
--- a/dts/Bindings/iio/adc/renesas,gyroadc.txt
+++ /dev/null
@@ -1,98 +0,0 @@
-* Renesas R-Car GyroADC device driver
-
-The GyroADC block is a reduced SPI block with up to 8 chipselect lines,
-which supports the SPI protocol of a selected few SPI ADCs. The SPI ADCs
-are sampled by the GyroADC block in a round-robin fashion and the result
-presented in the GyroADC registers.
-
-Required properties:
-- compatible:	Should be "<soc-specific>", "renesas,rcar-gyroadc".
-                The <soc-specific> should be one of:
-		renesas,r8a7791-gyroadc - for the GyroADC block present
-					  in r8a7791 SoC
-		renesas,r8a7792-gyroadc - for the GyroADC with interrupt
-					  block present in r8a7792 SoC
-- reg:		Address and length of the register set for the device
-- clocks:	References to all the clocks specified in the clock-names
-		property as specified in
-		Documentation/devicetree/bindings/clock/clock-bindings.txt.
-- clock-names:	Shall contain "fck". The "fck" is the GyroADC block clock.
-- power-domains: Must contain a reference to the PM domain, if available.
-- #address-cells: Should be <1> (setting for the subnodes) for all ADCs
-		except for "fujitsu,mb88101a". Should be <0> (setting for
-		only subnode) for "fujitsu,mb88101a".
-- #size-cells:	Should be <0> (setting for the subnodes)
-
-Sub-nodes:
-You must define subnode(s) which select the connected ADC type and reference
-voltage for the GyroADC channels.
-
-Required properties for subnodes:
-- compatible:	Should be either of:
-		"fujitsu,mb88101a"
-			- Fujitsu MB88101A compatible mode,
-			  12bit sampling, up to 4 channels can be sampled in
-			  round-robin fashion. One Fujitsu chip supplies four
-			  GyroADC channels with data as it contains four ADCs
-			  on the chip and thus for 4-channel operation, single
-			  MB88101A is required. The Cx chipselect lines of the
-			  MB88101A connect directly to two CHS lines of the
-			  GyroADC, no demuxer is required. The data out line
-			  of each MB88101A connects to a shared input pin of
-			  the GyroADC.
-		"ti,adcs7476" or "ti,adc121" or "adi,ad7476"
-			- TI ADCS7476 / TI ADC121 / ADI AD7476 compatible mode,
-			  15bit sampling, up to 8 channels can be sampled in
-			  round-robin fashion. One TI/ADI chip supplies single
-			  ADC channel with data, thus for 8-channel operation,
-			  8 chips are required. A 3:8 chipselect demuxer is
-			  required to connect the nCS line of the TI/ADI chips
-			  to the GyroADC, while MISO line of each TI/ADI ADC
-			  connects to a shared input pin of the GyroADC.
-		"maxim,max1162" or "maxim,max11100"
-			- Maxim MAX1162 / Maxim MAX11100 compatible mode,
-			  16bit sampling, up to 8 channels can be sampled in
-			  round-robin fashion. One Maxim chip supplies single
-			  ADC channel with data, thus for 8-channel operation,
-			  8 chips are required. A 3:8 chipselect demuxer is
-			  required to connect the nCS line of the MAX chips
-			  to the GyroADC, while MISO line of each Maxim ADC
-			  connects to a shared input pin of the GyroADC.
-- reg:		Should be the number of the analog input. Should be present
-		for all ADCs except "fujitsu,mb88101a".
-- vref-supply:	Reference to the channel reference voltage regulator.
-
-Example:
-	vref_max1162: regulator-vref-max1162 {
-		compatible = "regulator-fixed";
-
-		regulator-name = "MAX1162 Vref";
-		regulator-min-microvolt = <4096000>;
-		regulator-max-microvolt = <4096000>;
-	};
-
-	adc@e6e54000 {
-		compatible = "renesas,r8a7791-gyroadc", "renesas,rcar-gyroadc";
-		reg = <0 0xe6e54000 0 64>;
-		clocks = <&mstp9_clks R8A7791_CLK_GYROADC>;
-		clock-names = "fck";
-		power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
-
-		pinctrl-0 = <&adc_pins>;
-		pinctrl-names = "default";
-
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		adc@0 {
-			reg = <0>;
-			compatible = "maxim,max1162";
-			vref-supply = <&vref_max1162>;
-		};
-
-		adc@1 {
-			reg = <1>;
-			compatible = "maxim,max1162";
-			vref-supply = <&vref_max1162>;
-		};
-	};
diff --git a/dts/Bindings/iio/adc/renesas,rcar-gyroadc.yaml b/dts/Bindings/iio/adc/renesas,rcar-gyroadc.yaml
new file mode 100644
index 0000000000..c115e2e99b
--- /dev/null
+++ b/dts/Bindings/iio/adc/renesas,rcar-gyroadc.yaml
@@ -0,0 +1,143 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/renesas,rcar-gyroadc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas R-Car GyroADC
+
+maintainers:
+  - Marek Vasut <marek.vasut+renesas@gmail.com>
+
+description: |
+  The GyroADC block is a reduced SPI block with up to 8 chipselect lines,
+  which supports the SPI protocol of a selected few SPI ADCs. The SPI ADCs
+  are sampled by the GyroADC block in a round-robin fashion and the result
+  presented in the GyroADC registers.
+  The ADC bindings should match with that of the devices connected to a
+  full featured SPI bus.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - renesas,r8a7791-gyroadc
+          - renesas,r8a7792-gyroadc
+      - const: renesas,rcar-gyroadc
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: fck
+
+  power-domains: true
+
+  resets: true
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - "#address-cells"
+  - "#size-cells"
+
+patternProperties:
+  "@[0-7]$":
+    type: object
+    properties:
+      compatible:
+        description: |
+          fujitsu,mb88101a
+          - Fujitsu MB88101A compatible mode,
+            12bit sampling, up to 4 channels can be sampled in round-robin
+            fashion. One Fujitsu chip supplies four GyroADC channels with
+            data as it contains four ADCs on the chip and thus for 4-channel
+            operation, single MB88101A is required. The Cx chipselect lines
+            of the MB88101A connect directly to two CHS lines of the GyroADC,
+            no demuxer is required. The data out line of each MB88101A
+            connects to a shared input pin of the GyroADC.
+          ti,adcs7476 or ti,adc121 or adi,ad7476
+          - TI ADCS7476 / TI ADC121 / ADI AD7476 compatible mode, 15bit
+            sampling, up to 8 channels can be sampled in round-robin
+            fashion. One TI/ADI chip supplies single ADC channel with data,
+            thus for 8-channel operation, 8 chips are required.
+            A 3:8 chipselect demuxer is  required to connect the nCS line
+            of the TI/ADI chips to the GyroADC, while MISO line of each
+            TI/ADI ADC connects to a shared input pin of the GyroADC.
+          maxim,max1162 or maxim,max11100
+          - Maxim MAX1162 / Maxim MAX11100 compatible mode,  16bit sampling,
+            up to 8 channels can be sampled in round-robin fashion. One
+            Maxim chip supplies single ADC channel with data, thus for
+            8-channel operation, 8 chips are required.
+            A 3:8 chipselect demuxer is required to connect the nCS line
+            of the MAX chips to the GyroADC, while MISO line of each Maxim
+            ADC connects to a shared input pin of the GyroADC.
+        enum:
+          - adi,7476
+          - fujitsu,mb88101a
+          - maxim,max1162
+          - maxim,max11100
+          - ti,adcs7476
+          - ti,adc121
+
+      reg:
+        minimum: 0
+        maximum: 7
+
+      vref-supply: true
+
+    additionalProperties: false
+
+    required:
+      - compatible
+      - reg
+      - vref-supply
+
+examples:
+  - |
+    #include <dt-bindings/clock/r8a7791-clock.h>
+    #include <dt-bindings/power/r8a7791-sysc.h>
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        adc@e6e54000 {
+            compatible = "renesas,r8a7791-gyroadc", "renesas,rcar-gyroadc";
+            reg = <0 0xe6e54000 0 64>;
+            clocks = <&mstp9_clks R8A7791_CLK_GYROADC>;
+            clock-names = "fck";
+            power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
+
+            pinctrl-0 = <&adc_pins>;
+            pinctrl-names = "default";
+
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            adc@0 {
+                reg = <0>;
+                compatible = "maxim,max1162";
+                vref-supply = <&vref_max1162>;
+            };
+
+            adc@1 {
+                reg = <1>;
+                compatible = "maxim,max1162";
+                vref-supply = <&vref_max1162>;
+            };
+        };
+    };
+...
diff --git a/dts/Bindings/iio/adc/samsung,exynos-adc.yaml b/dts/Bindings/iio/adc/samsung,exynos-adc.yaml
index 5ebb0ab250..c65921e66d 100644
--- a/dts/Bindings/iio/adc/samsung,exynos-adc.yaml
+++ b/dts/Bindings/iio/adc/samsung,exynos-adc.yaml
@@ -49,8 +49,6 @@ properties:
   "#io-channel-cells":
     const: 1
 
-  io-channel-ranges: true
-
   vdd-supply: true
 
   samsung,syscon-phandle:
@@ -130,7 +128,6 @@ examples:
         reg = <0x12d10000 0x100>;
         interrupts = <0 106 0>;
         #io-channel-cells = <1>;
-        io-channel-ranges;
 
         clocks = <&clock 303>;
         clock-names = "adc";
@@ -156,7 +153,6 @@ examples:
         reg = <0x126C0000 0x100>;
         interrupts = <0 137 0>;
         #io-channel-cells = <1>;
-        io-channel-ranges;
 
         clocks = <&cmu CLK_TSADC>,
                  <&cmu CLK_SCLK_TSADC>;
diff --git a/dts/Bindings/iio/adc/st,stm32-dfsdm-adc.yaml b/dts/Bindings/iio/adc/st,stm32-dfsdm-adc.yaml
index d61bc011e8..6f2398cdc8 100644
--- a/dts/Bindings/iio/adc/st,stm32-dfsdm-adc.yaml
+++ b/dts/Bindings/iio/adc/st,stm32-dfsdm-adc.yaml
@@ -199,8 +199,6 @@ patternProperties:
               description:
                 From common IIO binding. Used to pipe external sigma delta
                 modulator or internal ADC output to DFSDM channel.
-                This is not required for "st,stm32-dfsdm-pdm" compatibility as
-                PDM microphone is binded in Audio DT node.
 
           required:
             - io-channels
@@ -235,6 +233,10 @@ patternProperties:
               description: child node
 
               properties:
+                compatible:
+                  enum:
+                    - st,stm32h7-dfsdm-dai
+
                 "#sound-dai-cells":
                   const: 0
 
@@ -244,6 +246,7 @@ patternProperties:
                     modulator or internal ADC output to DFSDM channel.
 
               required:
+                - compatible
                 - "#sound-dai-cells"
                 - io-channels
 
diff --git a/dts/Bindings/iio/adc/ti,adc084s021.yaml b/dts/Bindings/iio/adc/ti,adc084s021.yaml
new file mode 100644
index 0000000000..1a113b30a4
--- /dev/null
+++ b/dts/Bindings/iio/adc/ti,adc084s021.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,adc084s021.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments ADC084S021 ADC
+
+maintainers:
+  - Mårten Lindahl <martenli@axis.com>
+
+description: |
+  8 bit ADC with 4 channels
+
+properties:
+  compatible:
+    const: ti,adc084s021
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency: true
+
+  vref-supply:
+    description: External reference, needed to establish input scaling
+
+  spi-cpol: true
+  spi-cpha: true
+
+  "#io-channel-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - vref-supply
+  - spi-cpol
+  - spi-cpha
+
+additionalProperties: false
+
+examples:
+  - |
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        adc@0 {
+            compatible = "ti,adc084s021";
+            reg = <0>;
+            vref-supply = <&adc_vref>;
+            spi-cpol;
+            spi-cpha;
+            spi-max-frequency = <16000000>;
+            #io-channel-cells = <1>;
+        };
+    };
+...
diff --git a/dts/Bindings/iio/adc/ti,ads124s08.yaml b/dts/Bindings/iio/adc/ti,ads124s08.yaml
new file mode 100644
index 0000000000..9f5e96439c
--- /dev/null
+++ b/dts/Bindings/iio/adc/ti,ads124s08.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,ads124s08.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments' ads124s08 and ads124s06 ADC chip
+
+maintainers:
+  - Dan Murphy <dmurphy@ti.com>
+
+properties:
+  compatible:
+    enum:
+      - ti,ads124s06
+      - ti,ads124s08
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency: true
+
+  spi-cpha: true
+
+  reset-gpios:
+    maxItems: 1
+
+  "#io-channel-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        adc@0 {
+            compatible = "ti,ads124s08";
+            reg = <0>;
+            spi-max-frequency = <1000000>;
+            spi-cpha;
+            reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
+        };
+    };
+...
diff --git a/dts/Bindings/iio/adc/ti,palmas-gpadc.yaml b/dts/Bindings/iio/adc/ti,palmas-gpadc.yaml
new file mode 100644
index 0000000000..692dacd0fe
--- /dev/null
+++ b/dts/Bindings/iio/adc/ti,palmas-gpadc.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,palmas-gpadc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Palmas general purpose ADC IP block devicetree bindings
+
+maintainers:
+  - Tony Lindgren <tony@atomide.com>
+
+description: |
+  This ADC is often used to provide channels via the io-channels
+  consumer framework.
+  Channels list:
+    0 battery type
+    1 battery temp NTC (optional current source)
+    2 GP
+    3 temp (with ext. diode, optional current source)
+    4 GP
+    5 GP
+    6 VBAT_SENSE
+    7 VCC_SENSE
+    8 Backup Battery voltage
+    9 external charger (VCHG)
+    10 VBUS
+    11 DC-DC current probe (how does this work?)
+    12 internal die temp
+    13 internal die temp
+    14 USB ID pin voltage
+    15 test network
+
+properties:
+  compatible:
+    const: ti,palmas-gpadc
+
+  interrupts:
+    minItems: 1
+    maxItems: 3
+
+  "#io-channel-cells":
+    const: 1
+
+  ti,channel0-current-microamp:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Channel 0 current in uA.
+    enum:
+      - 0
+      - 5
+      - 15
+      - 20
+
+  ti,channel3-current-microamp:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Channel 3 current in uA.
+    enum:
+      - 0
+      - 10
+      - 400
+      - 800
+
+  ti,enable-extended-delay:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: Enable extended delay.
+
+additionalProperties: false
+
+required:
+  - compatible
+  - "#io-channel-cells"
+
+examples:
+  - |
+    #include <dt-bindings/clock/mt8183-clk.h>
+    pmic {
+        compatible = "ti,twl6035-pmic", "ti,palmas-pmic";
+        adc {
+            compatible = "ti,palmas-gpadc";
+            interrupts = <18 0
+                          16 0
+                          17 0>;
+            #io-channel-cells = <1>;
+            ti,channel0-current-microamp = <5>;
+            ti,channel3-current-microamp = <10>;
+        };
+    };
+...
diff --git a/dts/Bindings/iio/adc/ti-adc084s021.txt b/dts/Bindings/iio/adc/ti-adc084s021.txt
deleted file mode 100644
index 4259e50620..0000000000
--- a/dts/Bindings/iio/adc/ti-adc084s021.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-* Texas Instruments' ADC084S021
-
-Required properties:
- - compatible        : Must be "ti,adc084s021"
- - reg               : SPI chip select number for the device
- - vref-supply       : The regulator supply for ADC reference voltage
- - spi-cpol          : Per spi-bus bindings
- - spi-cpha          : Per spi-bus bindings
- - spi-max-frequency : Per spi-bus bindings
-
-Example:
-adc@0 {
-	compatible = "ti,adc084s021";
-	reg = <0>;
-	vref-supply = <&adc_vref>;
-	spi-cpol;
-	spi-cpha;
-	spi-max-frequency = <16000000>;
-};
diff --git a/dts/Bindings/iio/adc/ti-ads124s08.txt b/dts/Bindings/iio/adc/ti-ads124s08.txt
deleted file mode 100644
index ecf807bb32..0000000000
--- a/dts/Bindings/iio/adc/ti-ads124s08.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-* Texas Instruments' ads124s08 and ads124s06 ADC chip
-
-Required properties:
- - compatible :
-	"ti,ads124s08"
-	"ti,ads124s06"
- - reg : spi chip select number for the device
-
-Recommended properties:
- - spi-max-frequency : Definition as per
-		Documentation/devicetree/bindings/spi/spi-bus.txt
- - spi-cpha : Definition as per
-		Documentation/devicetree/bindings/spi/spi-bus.txt
-
-Optional properties:
- - reset-gpios : GPIO pin used to reset the device.
-
-Example:
-adc@0 {
-	compatible = "ti,ads124s08";
-	reg = <0>;
-	spi-max-frequency = <1000000>;
-	spi-cpha;
-	reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
-};
diff --git a/dts/Bindings/iio/adc/x-powers,axp209-adc.yaml b/dts/Bindings/iio/adc/x-powers,axp209-adc.yaml
new file mode 100644
index 0000000000..5ccbb1f819
--- /dev/null
+++ b/dts/Bindings/iio/adc/x-powers,axp209-adc.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/x-powers,axp209-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: X-Powers AXP ADC bindings
+
+maintainers:
+  - Chen-Yu Tsai <wens@csie.org>
+
+description: |
+  ADC is frequently used as a provider to consumers of the ADC channels.
+  Device is a child of an axp209 multifunction device
+  ADC channels and their indexes per variant:
+
+  AXP209
+  ------
+   0 | acin_v
+   1 | acin_i
+   2 | vbus_v
+   3 | vbus_i
+   4 | pmic_temp
+   5 | gpio0_v
+   6 | gpio1_v
+   7 | ipsout_v
+   8 | batt_v
+   9 | batt_chrg_i
+  10 | batt_dischrg_i
+
+  AXP22x
+  ------
+   0 | pmic_temp
+   1 | batt_v
+   2 | batt_chrg_i
+   3 | batt_dischrg_i
+
+  AXP813
+  ------
+   0 | pmic_temp
+   1 | gpio0_v
+   2 | batt_v
+   3 | batt_chrg_i
+   4 | batt_dischrg_i
+
+
+properties:
+  compatible:
+    enum:
+      - x-powers,axp209-adc
+      - x-powers,axp221-adc
+      - x-powers,axp813-adc
+
+  "#io-channel-cells":
+    const: 1
+
+additionalProperties: false
+
+examples:
+  - |
+    axp221 {
+        adc {
+            compatible = "x-powers,axp221-adc";
+            #io-channel-cells = <1>;
+        };
+    };
+...