Merge tag 'iio-5.7a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First set of new IIO device support, fatures and cleanups for the 5.7 cycle

Includes changes for the counter subsystem

Core Feature
* Explicitly handle sysfs values in dB, including correctly handling the
  needed postfix dB.
* Add a TODO to suggest suitable activities for new contributors to IIO now
  the vast majority of drivers are out of staging (and the remaining ones
  there are 'hard'). Also update the TODO in staging to remove stale entries.

Staging graduations
* ad7192 ADC.

New device support
* ad5770r
  - New driver for this 6 channel DAC including DT bindings.
* ad8366
  - Add supprot for the hmc1119 attenuator.
* al3010
  - New driver supporting this Dyna-image light sensors.
  - Power management and DT bindings added in additional patches.
* atlas-sensor
  - Add support for atlas DO-SM device.  Reads disolved oxygen in a solution.
* gpap002x00f
  - New driver and bindings to support the GP2AP002A00F and GP2AP002S00F light
    and proximity sensors. There is some limited existing support in
    input.  The intent is to drop this driver once IIO driver is in place.
* hmc425a
  - New driver for this attenuator.
* icp10100
  - New driver for this presure sensor.
* ltc2632
  - Add support for the ltc2636 8 channel DAC. Includes bindings and some
    tidying up of the driver.
* inv_mpu6050
  - Support IAM20680, ICM20609, ICM20689 and ICM20690.
    Includes related tidy up and rework of low pass filter bandwidth
    handling to give suitable values for all chips.

Binding conversions to yaml or missing bindings docs.
* atlas-sensor, including consolidation of previous 3 separate docs into 1.
* ad7923, previously no doc.
* max1363, split into max1238 and max1363 to simplify yaml.
* stm32-adc

Features
* (counter) 104-quad-8
  - Support a filter clock prescaler.
  - Support reporting of encoder cable status.
* ad7124
  - Low pass filter support.
  - Debugfs interface to access registers directly.
* ad8366
  - Support control of hardware gain.
* inv_mpu6050
  - Runtime pm with autosuspend.
* npcm adc
  - Add reset support. This is a breaking change if DT is not in sync,
    however this device is a BMC so the ecosystem is closed enought that
    this should not be a problem.
* srf04
  - Add power management with DT bindings for the GPIO.
* stm32-timer-trigger
  - Power management.
* (counter) stm32-timer-cnt
  - Power management.
* vcnl4000
  - Enable runtime PM for devices that don't use on demand measurement.

Cleanups and minor fixes
* core
  - Avoid double read when using debugfs.  Whilst we provide no guarantees
    on lack of side effects using the debugfs interfaces, this one is
    generate unexpected results so let us tidy it up.
* dac/Kconfig
  - Alphabetic order.
* ad5755
  - Grammar and minor other fixes.
* ad7124
  - Fail probe if get_voltage fails as no meaningful readings can be had
    without knowing the external reference.
  - Switch to selection between different channel attributes rather than
    building the arrays at runtime.
  - Remove the spi_device_id table as the driver cannot be probled without
    more information that can be provided without dt.
  - Update sysfs docs to provide more inormation and bring remaining docs for
    this part out of staging.
* ad9292
  - Use new SPI transfer delay structure.
* adis library
  - Add unlocked version of adis_initial_startup and refactor the function.
  - Add a product ID santiy check.
  - Add support for different self test registers.
  - Use new SPI delay structure.
  - Add new docs and tidy up existing.
* adis16136
  - Initialize adis_data statically.
* adis16400
  - Initialize adis_data statically.
* adis16460
  - Use core __adis_initial_Startup now it supports everything needed.
* adis16480
  - Initialize adis_data statically.
  - Use core __adis_initial_startup now it supports everything needed.
* al3320a
  - Add missing DT binding docs.
  - Tidy up code formatting.
  - Simplify error paths using devm_add_action_or_reset.
  - Ensure autoloading works by adding the of_match_table.
* atlas-sensor
  - Drop false requirement for interrupt line, the value can be polled using
    a sysfs or hrtimer type trigger.
* exynos-adc
  - Silence warning message on deferring probe.
* gp2ap002
  - Greatly simplify the Lux LUT.
  - Reorder actions around buffer setup and tear down as part of a sub-system
    wide standardization of these.
* inv_mpu6050
  - Various lttle tidyups.
  - Simpliy I2C aux MUX handling by enabling it only at startup. It never
    needs to be disabled.
  - Simplify polling rate when magnetometer enabled by putting only under
    control of userspace.
  - Always execute full reset on devices supporting spi. It does no harm
    when using i2c and makes for simpler code.
  - Reduce over the top sleep times for vddio regulator power up.
  - Greatly simplify power and engine management.
  - Fix some delays in polled reads (only visible due to other changes)
  - Stop preventing sampling rate changes whilst running as there is no
    adverse consequence of doing so.
  - Prevent attempting to read the temperature if neither accel nor
    gyro is enabled.
* lmp9100
  - Reorder actions around buffer setup and tear down as part of a sub-system
    wide standardization of these.
* max1118
  - Use new SPI transfer delay structure.
* mcp320x
  - Use new SPI transfer delay structure.
* si1133
  - Read full 24 bit signed integer instead o dropping last 8 bits of value.
    Not a critical fix as just adds precision.
* st_sensors
  - Use st_sensors_dev_name_probe instead of open coded version in st_accel
  - Handle potential memory allocation failure.
* st_lsm6dsx
  - Fix some wrong structure element naming in documentation.
  - Add missing return value check.
* stm32_timer_cnt
  - Drop some unused left over IIO headers from this count subsystem driver.
  - Ensure the clock is enabled in master mode.  Theoretical issue rather
    than one known to happen in the wild.
* tlc4541
  - Use new SPI delay structure.

* tag 'iio-5.7a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (98 commits)
  iio: dac: Kconfig: sort symbols alphabetically
  iio: light: gp2ap020a00f: fix iio_triggered_buffer_{predisable,postenable} positions
  iio: potentiostat: lmp9100: fix iio_triggered_buffer_{predisable,postenable} positions
  iio: trigger: stm32-timer: add power management support
  iio: trigger: stm32-timer: rename enabled flag
  iio: add a TODO
  counter: 104-quad-8: Support Differential Encoder Cable Status
  counter: 104-quad-8: Support Filter Clock Prescaler
  iio: pressure: icp10100: add driver for InvenSense ICP-101xx
  iio: industrialio-core: Fix debugfs read
  iio: imu: adis: add a note better explaining state_lock
  iio: imu: adis: update 'adis_data' struct doc-string
  iio: imu: adis: add doc-string for 'adis' struct
  iio: imu: adis_buffer: Use new structure for SPI transfer delays
  iio: adc: ti-tlc4541: Use new structure for SPI transfer delays
  iio: adc: mcp320x: Use new structure for SPI transfer delays
  iio: adc: max1118: Use new structure for SPI transfer delays
  iio: adc: ad9292: Use new structure for SPI transfer delays
  iio: adc: exynos: Silence warning about regulators during deferred probe
  staging: iio: update TODO
  ...

22 files changed, 1184 insertions, 282 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-counter-104-quad-8 b/Documentation/ABI/testing/sysfs-bus-counter-104-quad-8
index 46b1f33b2fce..eac32180c40d 100644
--- a/Documentation/ABI/testing/sysfs-bus-counter-104-quad-8
+++ b/Documentation/ABI/testing/sysfs-bus-counter-104-quad-8
@@ -1,3 +1,28 @@
+What:		/sys/bus/counter/devices/counterX/signalY/cable_fault
+KernelVersion:	5.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Read-only attribute that indicates whether a differential
+		encoder cable fault (not connected or loose wires) is detected
+		for the respective channel of Signal Y. Valid attribute values
+		are boolean. Detection must first be enabled via the
+		corresponding cable_fault_enable attribute.
+
+What:		/sys/bus/counter/devices/counterX/signalY/cable_fault_enable
+KernelVersion:	5.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Whether detection of differential encoder cable faults for the
+		respective channel of Signal Y is enabled. Valid attribute
+		values are boolean.
+
+What:		/sys/bus/counter/devices/counterX/signalY/filter_clock_prescaler
+KernelVersion:	5.7
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Filter clock factor for input Signal Y. This prescaler value
+		affects the inputs of both quadrature pair signals.
+
 What:		/sys/bus/counter/devices/counterX/signalY/index_polarity
 KernelVersion:	5.2
 Contact:	linux-iio@vger.kernel.org
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192 b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192
index 7627d3be08f5..f8315202c8f0 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192
+++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192
@@ -2,17 +2,22 @@ What:		/sys/bus/iio/devices/iio:deviceX/ac_excitation_en
 KernelVersion:
 Contact:	linux-iio@vger.kernel.org
 Description:
-		Reading gives the state of AC excitation.
-		Writing '1' enables AC excitation.
+		This attribute, if available, is used to enable the AC
+		excitation mode found on some converters. In ac excitation mode,
+		the polarity of the excitation voltage is reversed on
+		alternate cycles, to eliminate DC errors.
 
 What:		/sys/bus/iio/devices/iio:deviceX/bridge_switch_en
 KernelVersion:
 Contact:	linux-iio@vger.kernel.org
 Description:
-		This bridge switch is used to disconnect it when there is a
-		need to minimize the system current consumption.
-		Reading gives the state of the bridge switch.
-		Writing '1' enables the bridge switch.
+		This attribute, if available, is used to close or open the
+		bridge power down switch found on some converters.
+		In bridge applications, such as strain gauges and load cells,
+		the bridge itself consumes the majority of the current in the
+		system. To minimize the current consumption of the system,
+		the bridge can be disconnected (when it is not being used
+		using the bridge_switch_en attribute.
 
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration
 KernelVersion:
@@ -21,6 +26,13 @@ Description:
 		Initiates the system calibration procedure. This is done on a
 		single channel at a time. Write '1' to start the calibration.
 
+What:		/sys/bus/iio/devices/iio:deviceX/in_voltage2-voltage2_shorted_raw
+KernelVersion:
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Measure voltage from AIN2 pin connected to AIN(+)
+		and AIN(-) shorted.
+
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration_mode_available
 KernelVersion:
 Contact:	linux-iio@vger.kernel.org
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7923.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7923.yaml
new file mode 100644
index 000000000000..a11b918e0016
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7923.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7923.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7923 and similars with 4 and 8 Channel ADCs.
+
+maintainers:
+  - Michael Hennerich <michael.hennerich@analog.com>
+  - Patrick Vasseur <patrick.vasseur@c-s.fr>
+
+description: |
+  Analog Devices AD7904, AD7914, AD7923, AD7924 4 Channel ADCs, and AD7908,
+   AD7918, AD7928 8 Channels ADCs.
+
+  Specifications about the part can be found at:
+    https://www.analog.com/media/en/technical-documentation/data-sheets/AD7923.pdf
+    https://www.analog.com/media/en/technical-documentation/data-sheets/AD7904_7914_7924.pdf
+    https://www.analog.com/media/en/technical-documentation/data-sheets/AD7908_7918_7928.pdf
+
+properties:
+  compatible:
+    enum:
+      - adi,ad7904
+      - adi,ad7914
+      - adi,ad7923
+      - adi,ad7924
+      - adi,ad7908
+      - adi,ad7918
+      - adi,ad7928
+
+  reg:
+    maxItems: 1
+
+  refin-supply:
+    description: |
+      The regulator supply for ADC reference voltage.
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    spi {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      ad7928: adc@0 {
+        compatible = "adi,ad7928";
+        reg = <0>;
+        spi-max-frequency = <25000000>;
+        refin-supply = <&adc_vref>;
+
+        #address-cells = <1>;
+        #size-cells = <0>;
+      };
+    };
diff --git a/Documentation/devicetree/bindings/iio/adc/max1363.txt b/Documentation/devicetree/bindings/iio/adc/max1363.txt
deleted file mode 100644
index 94a9011dd860..000000000000
--- a/Documentation/devicetree/bindings/iio/adc/max1363.txt
+++ /dev/null
@@ -1,63 +0,0 @@
-* Maxim 1x3x/136x/116xx Analog to Digital Converter (ADC)
-
-The node for this driver must be a child node of a I2C controller, hence
-all mandatory properties for your controller must be specified. See directory:
-
-        Documentation/devicetree/bindings/i2c
-
-for more details.
-
-Required properties:
-  - compatible: Should be one of
-		"maxim,max1361"
-		"maxim,max1362"
-		"maxim,max1363"
-		"maxim,max1364"
-		"maxim,max1036"
-		"maxim,max1037"
-		"maxim,max1038"
-		"maxim,max1039"
-		"maxim,max1136"
-		"maxim,max1137"
-		"maxim,max1138"
-		"maxim,max1139"
-		"maxim,max1236"
-		"maxim,max1237"
-		"maxim,max1238"
-		"maxim,max1239"
-		"maxim,max11600"
-		"maxim,max11601"
-		"maxim,max11602"
-		"maxim,max11603"
-		"maxim,max11604"
-		"maxim,max11605"
-		"maxim,max11606"
-		"maxim,max11607"
-		"maxim,max11608"
-		"maxim,max11609"
-		"maxim,max11610"
-		"maxim,max11611"
-		"maxim,max11612"
-		"maxim,max11613"
-		"maxim,max11614"
-		"maxim,max11615"
-		"maxim,max11616"
-		"maxim,max11617"
-		"maxim,max11644"
-		"maxim,max11645"
-		"maxim,max11646"
-		"maxim,max11647"
-  - reg: Should contain the ADC I2C address
-
-Optional properties:
-  - vcc-supply: phandle to the regulator that provides power to the ADC.
-  - vref-supply: phandle to the regulator for ADC reference voltage.
-  - interrupts: IRQ line for the ADC. If not used the driver will use
-    polling.
-
-Example:
-adc: max11644@36 {
-	compatible = "maxim,max11644";
-	reg = <0x36>;
-	vref-supply = <&adc_vref>;
-};
diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max1238.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max1238.yaml
new file mode 100644
index 000000000000..a0ebb4680140
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/maxim,max1238.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/maxim,max1238.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX1238 and similar ADCs
+
+maintainers:
+  - Jonathan Cameron <jic23@kernel.org>
+
+description: |
+   Family of simple ADCs with i2c inteface and internal references.
+
+properties:
+  compatible:
+    enum:
+      - maxim,max1036
+      - maxim,max1037
+      - maxim,max1038
+      - maxim,max1039
+      - maxim,max1136
+      - maxim,max1137
+      - maxim,max1138
+      - maxim,max1139
+      - maxim,max1236
+      - maxim,max1237
+      - maxim,max1238
+      - maxim,max1239
+      - maxim,max11600
+      - maxim,max11601
+      - maxim,max11602
+      - maxim,max11603
+      - maxim,max11604
+      - maxim,max11605
+      - maxim,max11606
+      - maxim,max11607
+      - maxim,max11608
+      - maxim,max11609
+      - maxim,max11610
+      - maxim,max11611
+      - maxim,max11612
+      - maxim,max11613
+      - maxim,max11614
+      - maxim,max11615
+      - maxim,max11616
+      - maxim,max11617
+      - maxim,max11644
+      - maxim,max11645
+      - maxim,max11646
+      - maxim,max11647
+
+  reg:
+    maxItems: 1
+
+  vcc-supply: true
+  vref-supply:
+    description: Optional external reference.  If not supplied, internal
+      reference will be used.
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        adc@36 {
+            compatible = "maxim,max1238";
+            reg = <0x36>;
+        };
+    };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max1363.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max1363.yaml
new file mode 100644
index 000000000000..48377549c39a
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/maxim,max1363.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/maxim,max1363.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX1363 and similar ADCs
+
+maintainers:
+  - Jonathan Cameron <jic23@kernel.org>
+
+description: |
+   Family of ADCs with i2c inteface, internal references and threshold
+   monitoring.
+
+properties:
+  compatible:
+    enum:
+      - maxim,max1361
+      - maxim,max1362
+      - maxim,max1363
+      - maxim,max1364
+
+  reg:
+    maxItems: 1
+
+  vcc-supply: true
+  vref-supply:
+    description: Optional external reference.  If not supplied, internal
+      reference will be used.
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        adc@36 {
+            compatible = "maxim,max1363";
+            reg = <0x36>;
+        };
+    };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/nuvoton,npcm-adc.txt b/Documentation/devicetree/bindings/iio/adc/nuvoton,npcm-adc.txt
index eb939fe77836..ef8eeec1a997 100644
--- a/Documentation/devicetree/bindings/iio/adc/nuvoton,npcm-adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/nuvoton,npcm-adc.txt
@@ -6,6 +6,7 @@ Required properties:
 - compatible: "nuvoton,npcm750-adc" for the NPCM7XX BMC.
 - reg: specifies physical base address and size of the registers.
 - interrupts: Contain the ADC interrupt with flags for falling edge.
+- resets : phandle to the reset control for this device.
 
 Optional properties:
 - clocks: phandle of ADC reference clock, in case the clock is not
@@ -21,4 +22,5 @@ adc: adc@f000c000 {
 	reg = <0xf000c000 0x8>;
 	interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
 	clocks = <&clk NPCM7XX_CLK_ADC>;
+	resets = <&rstc NPCM7XX_RESET_IPSRST1 NPCM7XX_RESET_ADC>;
 };
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
deleted file mode 100644
index 8de933146771..000000000000
--- a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
+++ /dev/null
@@ -1,149 +0,0 @@
-STMicroelectronics STM32 ADC device driver
-
-STM32 ADC is a successive approximation analog-to-digital converter.
-It has several multiplexed input channels. Conversions can be performed
-in single, continuous, scan or discontinuous mode. Result of the ADC is
-stored in a left-aligned or right-aligned 32-bit data register.
-Conversions can be launched in software or using hardware triggers.
-
-The analog watchdog feature allows the application to detect if the input
-voltage goes beyond the user-defined, higher or lower thresholds.
-
-Each STM32 ADC block can have up to 3 ADC instances.
-
-Each instance supports two contexts to manage conversions, each one has its
-own configurable sequence and trigger:
-- regular conversion can be done in sequence, running in background
-- injected conversions have higher priority, and so have the ability to
-  interrupt regular conversion sequence (either triggered in SW or HW).
-  Regular sequence is resumed, in case it has been interrupted.
-
-Contents of a stm32 adc root node:
------------------------------------
-Required properties:
-- compatible: Should be one of:
-  "st,stm32f4-adc-core"
-  "st,stm32h7-adc-core"
-  "st,stm32mp1-adc-core"
-- reg: Offset and length of the ADC block register set.
-- interrupts: One or more interrupts for ADC block. Some parts like stm32f4
-  and stm32h7 share a common ADC interrupt line. stm32mp1 has two separate
-  interrupt lines, one for each ADC within ADC block.
-- clocks: Core can use up to two clocks, depending on part used:
-  - "adc" clock: for the analog circuitry, common to all ADCs.
-    It's required on stm32f4.
-    It's optional on stm32h7.
-  - "bus" clock: for registers access, common to all ADCs.
-    It's not present on stm32f4.
-    It's required on stm32h7.
-- clock-names: Must be "adc" and/or "bus" depending on part used.
-- interrupt-controller: Identifies the controller node as interrupt-parent
-- vdda-supply: Phandle to the vdda input analog voltage.
-- vref-supply: Phandle to the vref input analog reference voltage.
-- #interrupt-cells = <1>;
-- #address-cells = <1>;
-- #size-cells = <0>;
-
-Optional properties:
-- A pinctrl state named "default" for each ADC channel may be defined to set
-  inX ADC pins in mode of operation for analog input on external pin.
-- booster-supply: Phandle to the embedded booster regulator that can be used
-  to supply ADC analog input switches on stm32h7 and stm32mp1.
-- vdd-supply: Phandle to the vdd input voltage. It can be used to supply ADC
-  analog input switches on stm32mp1.
-- st,syscfg: Phandle to system configuration controller. It can be used to
-  control the analog circuitry on stm32mp1.
-- st,max-clk-rate-hz: Allow to specify desired max clock rate used by analog
-  circuitry.
-
-Contents of a stm32 adc child node:
------------------------------------
-An ADC block node should contain at least one subnode, representing an
-ADC instance available on the machine.
-
-Required properties:
-- compatible: Should be one of:
-  "st,stm32f4-adc"
-  "st,stm32h7-adc"
-  "st,stm32mp1-adc"
-- reg: Offset of ADC instance in ADC block (e.g. may be 0x0, 0x100, 0x200).
-- clocks: Input clock private to this ADC instance. It's required only on
-  stm32f4, that has per instance clock input for registers access.
-- interrupts: IRQ Line for the ADC (e.g. may be 0 for adc@0, 1 for adc@100 or
-  2 for adc@200).
-- st,adc-channels: List of single-ended channels muxed for this ADC.
-  It can have up to 16 channels on stm32f4 or 20 channels on stm32h7, numbered
-  from 0 to 15 or 19 (resp. for in0..in15 or in0..in19).
-- st,adc-diff-channels: List of differential channels muxed for this ADC.
-  Depending on part used, some channels can be configured as differential
-  instead of single-ended (e.g. stm32h7). List here positive and negative
-  inputs pairs as <vinp vinn>, <vinp vinn>,... vinp and vinn are numbered
-  from 0 to 19 on stm32h7)
-  Note: At least one of "st,adc-channels" or "st,adc-diff-channels" is required.
-  Both properties can be used together. Some channels can be used as
-  single-ended and some other ones as differential (mixed). But channels
-  can't be configured both as single-ended and differential (invalid).
-- #io-channel-cells = <1>: See the IIO bindings section "IIO consumers" in
-  Documentation/devicetree/bindings/iio/iio-bindings.txt
-
-Optional properties:
-- dmas: Phandle to dma channel for this ADC instance.
-  See ../../dma/dma.txt for details.
-- dma-names: Must be "rx" when dmas property is being used.
-- assigned-resolution-bits: Resolution (bits) to use for conversions. Must
-  match device available resolutions:
-  * can be 6, 8, 10 or 12 on stm32f4
-  * can be 8, 10, 12, 14 or 16 on stm32h7
-  Default is maximum resolution if unset.
-- st,min-sample-time-nsecs: Minimum sampling time in nanoseconds.
-  Depending on hardware (board) e.g. high/low analog input source impedance,
-  fine tune of ADC sampling time may be recommended.
-  This can be either one value or an array that matches 'st,adc-channels' list,
-  to set sample time resp. for all channels, or independently for each channel.
-
-Example:
-	adc: adc@40012000 {
-		compatible = "st,stm32f4-adc-core";
-		reg = <0x40012000 0x400>;
-		interrupts = <18>;
-		clocks = <&rcc 0 168>;
-		clock-names = "adc";
-		vref-supply = <&reg_vref>;
-		interrupt-controller;
-		pinctrl-names = "default";
-		pinctrl-0 = <&adc3_in8_pin>;
-
-		#interrupt-cells = <1>;
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		adc@0 {
-			compatible = "st,stm32f4-adc";
-			#io-channel-cells = <1>;
-			reg = <0x0>;
-			clocks = <&rcc 0 168>;
-			interrupt-parent = <&adc>;
-			interrupts = <0>;
-			st,adc-channels = <8>;
-			dmas = <&dma2 0 0 0x400 0x0>;
-			dma-names = "rx";
-			assigned-resolution-bits = <8>;
-		};
-		...
-		other adc child nodes follow...
-	};
-
-Example to setup:
-- channel 1 as single-ended
-- channels 2 & 3 as differential (with resp. 6 & 7 negative inputs)
-
-	adc: adc@40022000 {
-		compatible = "st,stm32h7-adc-core";
-		...
-		adc1: adc@0 {
-			compatible = "st,stm32h7-adc";
-			...
-			st,adc-channels = <1>;
-			st,adc-diff-channels = <2 6>, <3 7>;
-		};
-	};
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.yaml b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.yaml
new file mode 100644
index 000000000000..933ba37944d7
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.yaml
@@ -0,0 +1,458 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/bindings/iio/adc/st,stm32-adc.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: STMicroelectronics STM32 ADC bindings
+
+description: |
+  STM32 ADC is a successive approximation analog-to-digital converter.
+  It has several multiplexed input channels. Conversions can be performed
+  in single, continuous, scan or discontinuous mode. Result of the ADC is
+  stored in a left-aligned or right-aligned 32-bit data register.
+  Conversions can be launched in software or using hardware triggers.
+
+  The analog watchdog feature allows the application to detect if the input
+  voltage goes beyond the user-defined, higher or lower thresholds.
+
+  Each STM32 ADC block can have up to 3 ADC instances.
+
+maintainers:
+  - Fabrice Gasnier <fabrice.gasnier@st.com>
+
+properties:
+  compatible:
+    enum:
+      - st,stm32f4-adc-core
+      - st,stm32h7-adc-core
+      - st,stm32mp1-adc-core
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    description: |
+      One or more interrupts for ADC block, depending on part used:
+        - stm32f4 and stm32h7 share a common ADC interrupt line.
+        - stm32mp1 has two separate interrupt lines, one for each ADC within
+          ADC block.
+    minItems: 1
+    maxItems: 2
+
+  clocks:
+    description: |
+      Core can use up to two clocks, depending on part used:
+        - "adc" clock: for the analog circuitry, common to all ADCs.
+          It's required on stm32f4.
+          It's optional on stm32h7 and stm32mp1.
+        - "bus" clock: for registers access, common to all ADCs.
+          It's not present on stm32f4.
+          It's required on stm32h7 and stm32mp1.
+
+  clock-names: true
+
+  st,max-clk-rate-hz:
+    description:
+      Allow to specify desired max clock rate used by analog circuitry.
+
+  vdda-supply:
+    description: Phandle to the vdda input analog voltage.
+
+  vref-supply:
+    description: Phandle to the vref input analog reference voltage.
+
+  booster-supply:
+    description:
+      Phandle to the embedded booster regulator that can be used to supply ADC
+      analog input switches on stm32h7 and stm32mp1.
+
+  vdd-supply:
+    description:
+      Phandle to the vdd input voltage. It can be used to supply ADC analog
+      input switches on stm32mp1.
+
+  st,syscfg:
+    description:
+      Phandle to system configuration controller. It can be used to control the
+      analog circuitry on stm32mp1.
+    allOf:
+      - $ref: "/schemas/types.yaml#/definitions/phandle-array"
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    const: 1
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: st,stm32f4-adc-core
+
+    then:
+      properties:
+        clocks:
+          maxItems: 1
+
+        clock-names:
+          const: adc
+
+        interrupts:
+          items:
+            - description: interrupt line common for all ADCs
+
+        st,max-clk-rate-hz:
+          minimum: 600000
+          maximum: 36000000
+          default: 36000000
+
+        booster-supply: false
+
+        vdd-supply: false
+
+        st,syscfg: false
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: st,stm32h7-adc-core
+
+    then:
+      properties:
+        clocks:
+          minItems: 1
+          maxItems: 2
+
+        clock-names:
+          items:
+            - const: bus
+            - const: adc
+          minItems: 1
+          maxItems: 2
+
+        interrupts:
+          items:
+            - description: interrupt line common for all ADCs
+
+        st,max-clk-rate-hz:
+          minimum: 120000
+          maximum: 36000000
+          default: 36000000
+
+        vdd-supply: false
+
+        st,syscfg: false
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: st,stm32mp1-adc-core
+
+    then:
+      properties:
+        clocks:
+          minItems: 1
+          maxItems: 2
+
+        clock-names:
+          items:
+            - const: bus
+            - const: adc
+          minItems: 1
+          maxItems: 2
+
+        interrupts:
+          items:
+            - description: interrupt line for ADC1
+            - description: interrupt line for ADC2
+
+        st,max-clk-rate-hz:
+          minimum: 120000
+          maximum: 36000000
+          default: 36000000
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - vdda-supply
+  - vref-supply
+  - interrupt-controller
+  - '#interrupt-cells'
+  - '#address-cells'
+  - '#size-cells'
+
+patternProperties:
+  "^adc@[0-9]+$":
+    type: object
+    description:
+      An ADC block node should contain at least one subnode, representing an
+      ADC instance available on the machine.
+
+    properties:
+      compatible:
+        enum:
+          - st,stm32f4-adc
+          - st,stm32h7-adc
+          - st,stm32mp1-adc
+
+      reg:
+        description: |
+          Offset of ADC instance in ADC block. Valid values are:
+            - 0x0:   ADC1
+            - 0x100: ADC2
+            - 0x200: ADC3 (stm32f4 only)
+        maxItems: 1
+
+      '#io-channel-cells':
+        const: 1
+
+      interrupts:
+        description: |
+          IRQ Line for the ADC instance. Valid values are:
+            - 0 for adc@0
+            - 1 for adc@100
+            - 2 for adc@200 (stm32f4 only)
+        maxItems: 1
+
+      clocks:
+        description:
+          Input clock private to this ADC instance. It's required only on
+          stm32f4, that has per instance clock input for registers access.
+        maxItems: 1
+
+      dmas:
+        description: RX DMA Channel
+        maxItems: 1
+
+      dma-names:
+        const: rx
+
+      assigned-resolution-bits:
+        description: |
+          Resolution (bits) to use for conversions:
+            - can be 6, 8, 10 or 12 on stm32f4
+            - can be 8, 10, 12, 14 or 16 on stm32h7 and stm32mp1
+        allOf:
+          - $ref: /schemas/types.yaml#/definitions/uint32
+
+      st,adc-channels:
+        description: |
+          List of single-ended channels muxed for this ADC. It can have up to:
+            - 16 channels, numbered from 0 to 15 (for in0..in15) on stm32f4
+            - 20 channels, numbered from 0 to 19 (for in0..in19) on stm32h7 and
+              stm32mp1.
+        allOf:
+          - $ref: /schemas/types.yaml#/definitions/uint32-array
+
+      st,adc-diff-channels:
+        description: |
+          List of differential channels muxed for this ADC. Some channels can
+          be configured as differential instead of single-ended on stm32h7 and
+          on stm32mp1. Positive and negative inputs pairs are listed:
+          <vinp vinn>, <vinp vinn>,... vinp and vinn are numbered from 0 to 19.
+
+          Note: At least one of "st,adc-channels" or "st,adc-diff-channels" is
+          required. Both properties can be used together. Some channels can be
+          used as single-ended and some other ones as differential (mixed). But
+          channels can't be configured both as single-ended and differential.
+        allOf:
+          - $ref: /schemas/types.yaml#/definitions/uint32-matrix
+          - items:
+              items:
+                - description: |
+                    "vinp" indicates positive input number
+                  minimum: 0
+                  maximum: 19
+                - description: |
+                    "vinn" indicates negative input number
+                  minimum: 0
+                  maximum: 19
+
+      st,min-sample-time-nsecs:
+        description:
+          Minimum sampling time in nanoseconds. Depending on hardware (board)
+          e.g. high/low analog input source impedance, fine tune of ADC
+          sampling time may be recommended. This can be either one value or an
+          array that matches "st,adc-channels" and/or "st,adc-diff-channels"
+          list, to set sample time resp. for all channels, or independently for
+          each channel.
+        allOf:
+          - $ref: /schemas/types.yaml#/definitions/uint32-array
+
+    allOf:
+      - if:
+          properties:
+            compatible:
+              contains:
+                const: st,stm32f4-adc
+
+        then:
+          properties:
+            reg:
+              enum:
+                - 0x0
+                - 0x100
+                - 0x200
+
+            interrupts:
+              minimum: 0
+              maximum: 2
+
+            assigned-resolution-bits:
+              enum: [6, 8, 10, 12]
+              default: 12
+
+            st,adc-channels:
+              minItems: 1
+              maxItems: 16
+              items:
+                minimum: 0
+                maximum: 15
+
+            st,adc-diff-channels: false
+
+            st,min-sample-time-nsecs:
+              minItems: 1
+              maxItems: 16
+              items:
+                minimum: 80
+
+          required:
+            - clocks
+
+      - if:
+          properties:
+            compatible:
+              contains:
+                enum:
+                  - st,stm32h7-adc
+                  - st,stm32mp1-adc
+
+        then:
+          properties:
+            reg:
+              enum:
+                - 0x0
+                - 0x100
+
+            interrupts:
+              minimum: 0
+              maximum: 1
+
+            assigned-resolution-bits:
+              enum: [8, 10, 12, 14, 16]
+              default: 16
+
+            st,adc-channels:
+              minItems: 1
+              maxItems: 20
+              items:
+                minimum: 0
+                maximum: 19
+
+            st,min-sample-time-nsecs:
+              minItems: 1
+              maxItems: 20
+              items:
+                minimum: 40
+
+    additionalProperties: false
+
+    anyOf:
+      - required:
+          - st,adc-channels
+      - required:
+          - st,adc-diff-channels
+
+    required:
+      - compatible
+      - reg
+      - interrupts
+      - '#io-channel-cells'
+
+examples:
+  - |
+    // Example 1: with stm32f429, ADC1, single-ended channel 8
+      adc123: adc@40012000 {
+        compatible = "st,stm32f4-adc-core";
+        reg = <0x40012000 0x400>;
+        interrupts = <18>;
+        clocks = <&rcc 0 168>;
+        clock-names = "adc";
+        st,max-clk-rate-hz = <36000000>;
+        vdda-supply = <&vdda>;
+        vref-supply = <&vref>;
+        interrupt-controller;
+        #interrupt-cells = <1>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+        adc@0 {
+          compatible = "st,stm32f4-adc";
+          #io-channel-cells = <1>;
+          reg = <0x0>;
+          clocks = <&rcc 0 168>;
+          interrupt-parent = <&adc123>;
+          interrupts = <0>;
+          st,adc-channels = <8>;
+          dmas = <&dma2 0 0 0x400 0x0>;
+          dma-names = "rx";
+          assigned-resolution-bits = <8>;
+        };
+        // ...
+        // other adc child nodes follow...
+      };
+
+  - |
+    // Example 2: with stm32mp157c to setup ADC1 with:
+    // - channels 0 & 1 as single-ended
+    // - channels 2 & 3 as differential (with resp. 6 & 7 negative inputs)
+      #include <dt-bindings/interrupt-controller/arm-gic.h>
+      #include <dt-bindings/clock/stm32mp1-clks.h>
+      adc12: adc@48003000 {
+        compatible = "st,stm32mp1-adc-core";
+        reg = <0x48003000 0x400>;
+        interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&rcc ADC12>, <&rcc ADC12_K>;
+        clock-names = "bus", "adc";
+        booster-supply = <&booster>;
+        vdd-supply = <&vdd>;
+        vdda-supply = <&vdda>;
+        vref-supply = <&vref>;
+        st,syscfg = <&syscfg>;
+        interrupt-controller;
+        #interrupt-cells = <1>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+        adc@0 {
+          compatible = "st,stm32mp1-adc";
+          #io-channel-cells = <1>;
+          reg = <0x0>;
+          interrupt-parent = <&adc12>;
+          interrupts = <0>;
+          st,adc-channels = <0 1>;
+          st,adc-diff-channels = <2 6>, <3 7>;
+          st,min-sample-time-nsecs = <5000>;
+          dmas = <&dmamux1 9 0x400 0x05>;
+          dma-names = "rx";
+        };
+        // ...
+        // other adc child node follow...
+      };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml
new file mode 100644
index 000000000000..1c6d49685e9f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/amplifiers/adi,hmc425a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HMC425A 6-bit Digital Step Attenuator
+
+maintainers:
+- Michael Hennerich <michael.hennerich@analog.com>
+- Beniamin Bia <beniamin.bia@analog.com>
+
+description: |
+  Digital Step Attenuator IIO device with gpio interface.
+  HMC425A 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.2 - 8.0 GHz
+  https://www.analog.com/media/en/technical-documentation/data-sheets/hmc425A.pdf
+
+properties:
+  compatible:
+    enum:
+      - adi,hmc425a
+
+  vcc-supply: true
+
+  ctrl-gpios:
+    description:
+      Must contain an array of 6 GPIO specifiers, referring to the GPIO pins
+      connected to the control pins V1-V6.
+    minItems: 6
+    maxItems: 6
+
+required:
+  - compatible
+  - ctrl-gpios
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    gpio_hmc425a: hmc425a {
+      compatible = "adi,hmc425a";
+      ctrl-gpios = <&gpio 40 GPIO_ACTIVE_HIGH>,
+        <&gpio 39 GPIO_ACTIVE_HIGH>,
+        <&gpio 38 GPIO_ACTIVE_HIGH>,
+        <&gpio 37 GPIO_ACTIVE_HIGH>,
+        <&gpio 36 GPIO_ACTIVE_HIGH>,
+        <&gpio 35 GPIO_ACTIVE_HIGH>;
+      vcc-supply = <&foo>;
+    };
+...
diff --git a/Documentation/devicetree/bindings/iio/chemical/atlas,ec-sm.txt b/Documentation/devicetree/bindings/iio/chemical/atlas,ec-sm.txt
deleted file mode 100644
index f4320595b851..000000000000
--- a/Documentation/devicetree/bindings/iio/chemical/atlas,ec-sm.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-* Atlas Scientific EC-SM OEM sensor
-
-http://www.atlas-scientific.com/_files/_datasheets/_oem/EC_oem_datasheet.pdf
-
-Required properties:
-
-  - compatible: must be "atlas,ec-sm"
-  - reg: the I2C address of the sensor
-  - interrupts: the sole interrupt generated by the device
-
-  Refer to interrupt-controller/interrupts.txt for generic interrupt client
-  node bindings.
-
-Example:
-
-atlas@64 {
-	compatible = "atlas,ec-sm";
-	reg = <0x64>;
-	interrupt-parent = <&gpio1>;
-	interrupts = <16 2>;
-};
diff --git a/Documentation/devicetree/bindings/iio/chemical/atlas,orp-sm.txt b/Documentation/devicetree/bindings/iio/chemical/atlas,orp-sm.txt
deleted file mode 100644
index af1f5a9aa4da..000000000000
--- a/Documentation/devicetree/bindings/iio/chemical/atlas,orp-sm.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-* Atlas Scientific ORP-SM OEM sensor
-
-https://www.atlas-scientific.com/_files/_datasheets/_oem/ORP_oem_datasheet.pdf
-
-Required properties:
-
-  - compatible: must be "atlas,orp-sm"
-  - reg: the I2C address of the sensor
-  - interrupts: the sole interrupt generated by the device
-
-  Refer to interrupt-controller/interrupts.txt for generic interrupt client
-  node bindings.
-
-Example:
-
-atlas@66 {
-	compatible = "atlas,orp-sm";
-	reg = <0x66>;
-	interrupt-parent = <&gpio1>;
-	interrupts = <16 2>;
-};
diff --git a/Documentation/devicetree/bindings/iio/chemical/atlas,ph-sm.txt b/Documentation/devicetree/bindings/iio/chemical/atlas,ph-sm.txt
deleted file mode 100644
index 79d90f060327..000000000000
--- a/Documentation/devicetree/bindings/iio/chemical/atlas,ph-sm.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-* Atlas Scientific pH-SM OEM sensor
-
-http://www.atlas-scientific.com/_files/_datasheets/_oem/pH_oem_datasheet.pdf
-
-Required properties:
-
-  - compatible: must be "atlas,ph-sm"
-  - reg: the I2C address of the sensor
-  - interrupts: the sole interrupt generated by the device
-
-  Refer to interrupt-controller/interrupts.txt for generic interrupt client
-  node bindings.
-
-Example:
-
-atlas@65 {
-	compatible = "atlas,ph-sm";
-	reg = <0x65>;
-	interrupt-parent = <&gpio1>;
-	interrupts = <16 2>;
-};
diff --git a/Documentation/devicetree/bindings/iio/chemical/atlas,sensor.yaml b/Documentation/devicetree/bindings/iio/chemical/atlas,sensor.yaml
new file mode 100644
index 000000000000..edcd2904d50e
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/chemical/atlas,sensor.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/chemical/atlas,sensor.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atlas Scientific OEM sensors
+
+maintainers:
+  - Matt Ranostay <matt.ranostay@konsulko.com>
+
+description: |
+  Atlas Scientific OEM sensors connected via I2C
+
+  Datasheets:
+    http://www.atlas-scientific.com/_files/_datasheets/_oem/DO_oem_datasheet.pdf
+    http://www.atlas-scientific.com/_files/_datasheets/_oem/EC_oem_datasheet.pdf
+    http://www.atlas-scientific.com/_files/_datasheets/_oem/ORP_oem_datasheet.pdf
+    http://www.atlas-scientific.com/_files/_datasheets/_oem/pH_oem_datasheet.pdf
+
+properties:
+  compatible:
+    enum:
+      - atlas,do-sm
+      - atlas,ec-sm
+      - atlas,orp-sm
+      - atlas,ph-sm
+
+  reg:
+     maxItems: 1
+
+  interrupts:
+     maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      atlas@66 {
+        compatible = "atlas,orp-sm";
+        reg = <0x66>;
+        interrupt-parent = <&gpio1>;
+        interrupts = <16 2>;
+      };
+    };
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml
new file mode 100644
index 000000000000..d9c25cf4b92f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml
@@ -0,0 +1,185 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2020 Analog Devices Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bindings/iio/dac/adi,ad5770r.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD5770R DAC device driver
+
+maintainers:
+  - Mircea Caprioru <mircea.caprioru@analog.com>
+
+description: |
+  Bindings for the Analog Devices AD5770R current DAC device. Datasheet can be
+  found here:
+    https://www.analog.com/media/en/technical-documentation/data-sheets/AD5770R.pdf
+
+properties:
+  compatible:
+    enum:
+      - adi,ad5770r
+
+  reg:
+    maxItems: 1
+
+  avdd-supply:
+    description:
+      AVdd voltage supply. Represents two different supplies in the datasheet
+      that are in fact the same.
+
+  iovdd-supply:
+    description:
+      Voltage supply for the chip interface.
+
+  vref-supply:
+    description: Specify the voltage of the external reference used.
+      Available reference options are 1.25 V or 2.5 V. If no
+      external reference declared then the device will use the
+      internal reference of 1.25 V.
+
+  adi,external-resistor:
+    description: Specify if an external 2.5k ohm resistor is used. If not
+      specified the device will use an internal 2.5k ohm resistor.
+      The precision resistor is used for reference current generation.
+    type: boolean
+
+  reset-gpios:
+    description: GPIO spec for the RESET pin. If specified, it will be
+      asserted during driver probe.
+    maxItems: 1
+
+  channel0:
+    description: Represents an external channel which are
+      connected to the DAC. Channel 0 can act both as a current
+      source and sink.
+    type: object
+
+    properties:
+      num:
+        description: This represents the channel number.
+        items:
+          const: 0
+
+      adi,range-microamp:
+          description: Output range of the channel.
+          oneOf:
+            - $ref: /schemas/types.yaml#/definitions/int32-array
+            - items:
+                - enum: [0 300000]
+                - enum: [-60000 0]
+                - enum: [-60000 300000]
+
+  channel1:
+    description: Represents an external channel which are
+      connected to the DAC.
+    type: object
+
+    properties:
+      num:
+        description: This represents the channel number.
+        items:
+          const: 1
+
+      adi,range-microamp:
+          description: Output range of the channel.
+          oneOf:
+            - $ref: /schemas/types.yaml#/definitions/uint32-array
+            - items:
+                - enum: [0 140000]
+                - enum: [0 250000]
+
+  channel2:
+    description: Represents an external channel which are
+      connected to the DAC.
+    type: object
+
+    properties:
+      num:
+        description: This represents the channel number.
+        items:
+          const: 2
+
+      adi,range-microamp:
+          description: Output range of the channel.
+          oneOf:
+            - $ref: /schemas/types.yaml#/definitions/uint32-array
+            - items:
+                - enum: [0 140000]
+                - enum: [0 250000]
+
+patternProperties:
+  "^channel@([3-5])$":
+    type: object
+    description: Represents the external channels which are connected to the DAC.
+    properties:
+      num:
+        description: This represents the channel number.
+        items:
+          minimum: 3
+          maximum: 5
+
+      adi,range-microamp:
+          description: Output range of the channel.
+          oneOf:
+            - $ref: /schemas/types.yaml#/definitions/uint32-array
+            - items:
+                - enum: [0 45000]
+                - enum: [0 100000]
+
+required:
+- reg
+- diff-channels
+- channel0
+- channel1
+- channel2
+- channel3
+- channel4
+- channel5
+
+examples:
+  - |
+        spi {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                ad5770r@0 {
+                        compatible = "ad5770r";
+                        reg = <0>;
+                        spi-max-frequency = <1000000>;
+                        vref-supply = <&vref>;
+                        adi,external-resistor;
+                        reset-gpios = <&gpio 22 0>;
+
+                        channel@0 {
+                                num = <0>;
+                                adi,range-microamp = <(-60000) 300000>;
+                        };
+
+                        channel@1 {
+                                num = <1>;
+                                adi,range-microamp = <0 140000>;
+                        };
+
+                        channel@2 {
+                                num = <2>;
+                                adi,range-microamp = <0 55000>;
+                        };
+
+                        channel@3 {
+                                num = <3>;
+                                adi,range-microamp = <0 45000>;
+                        };
+
+                        channel@4 {
+                                num = <4>;
+                                adi,range-microamp = <0 45000>;
+                        };
+
+                        channel@5 {
+                                num = <5>;
+                                adi,range-microamp = <0 45000>;
+                        };
+                };
+        };
+...
diff --git a/Documentation/devicetree/bindings/iio/dac/ltc2632.txt b/Documentation/devicetree/bindings/iio/dac/ltc2632.txt
index e0d5fea33031..338c3220f01a 100644
--- a/Documentation/devicetree/bindings/iio/dac/ltc2632.txt
+++ b/Documentation/devicetree/bindings/iio/dac/ltc2632.txt
@@ -1,4 +1,4 @@
-Linear Technology LTC2632 DAC device driver
+Linear Technology LTC2632/2636 DAC
 
 Required properties:
  - compatible: Has to contain one of the following:
@@ -8,6 +8,12 @@ Required properties:
 	lltc,ltc2632-h12
 	lltc,ltc2632-h10
 	lltc,ltc2632-h8
+	lltc,ltc2636-l12
+	lltc,ltc2636-l10
+	lltc,ltc2636-l8
+	lltc,ltc2636-h12
+	lltc,ltc2636-h10
+	lltc,ltc2636-h8
 
 Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
 apply. In particular, "reg" and "spi-max-frequency" properties must be given.
diff --git a/Documentation/devicetree/bindings/iio/imu/inv_mpu6050.txt b/Documentation/devicetree/bindings/iio/imu/inv_mpu6050.txt
index c5ee8a20af9f..f2f64749e818 100644
--- a/Documentation/devicetree/bindings/iio/imu/inv_mpu6050.txt
+++ b/Documentation/devicetree/bindings/iio/imu/inv_mpu6050.txt
@@ -4,6 +4,7 @@ http://www.invensense.com/mems/gyro/mpu6050.html
 
 Required properties:
  - compatible : should be one of
+		"invensense,mpu6000"
 		"invensense,mpu6050"
  		"invensense,mpu6500"
 		"invensense,mpu6515"
@@ -11,7 +12,11 @@ Required properties:
 		"invensense,mpu9250"
 		"invensense,mpu9255"
 		"invensense,icm20608"
+		"invensense,icm20609"
+		"invensense,icm20689"
 		"invensense,icm20602"
+		"invensense,icm20690"
+		"invensense,iam20680"
  - reg : the I2C address of the sensor
  - interrupts: interrupt mapping for IRQ. It should be configured with flags
    IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_RISING, IRQ_TYPE_LEVEL_LOW or
diff --git a/Documentation/devicetree/bindings/iio/light/dynaimage,al3010.yaml b/Documentation/devicetree/bindings/iio/light/dynaimage,al3010.yaml
new file mode 100644
index 000000000000..f671edda6641
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/dynaimage,al3010.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/dynaimage,al3010.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Dyna-Image AL3010 sensor
+
+maintainers:
+  - David Heidelberg <david@ixit.cz>
+
+properties:
+  compatible:
+    const: dynaimage,al3010
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  vdd-supply:
+    description: Regulator that provides power to the sensor
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        light-sensor@1c {
+            compatible = "dynaimage,al3010";
+            reg = <0x1c>;
+            vdd-supply = <&vdd_reg>;
+            interrupts = <0 99 4>;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/iio/light/dynaimage,al3320a.yaml b/Documentation/devicetree/bindings/iio/light/dynaimage,al3320a.yaml
new file mode 100644
index 000000000000..497300239d93
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/dynaimage,al3320a.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/dynaimage,al3320a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Dyna-Image AL3320A sensor
+
+maintainers:
+  - David Heidelberg <david@ixit.cz>
+
+properties:
+  compatible:
+    const: dynaimage,al3320a
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  vdd-supply:
+    description: Regulator that provides power to the sensor
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        light-sensor@1c {
+            compatible = "dynaimage,al3320a";
+            reg = <0x1c>;
+            vdd-supply = <&vdd_reg>;
+            interrupts = <0 99 4>;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/iio/light/sharp,gp2ap002.yaml b/Documentation/devicetree/bindings/iio/light/sharp,gp2ap002.yaml
new file mode 100644
index 000000000000..12aa16f24772
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/sharp,gp2ap002.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/sharp,gp2ap002.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sharp GP2AP002A00F and GP2AP002S00F proximity and ambient light sensors
+
+maintainers:
+  - Linus Walleij <linus.walleij@linaro.org>
+
+description: |
+  Proximity and ambient light sensor with IR LED for the proximity
+  sensing and an analog output for light intensity. The ambient light
+  sensor output is not available on the GP2AP002S00F variant.
+
+properties:
+  compatible:
+    enum:
+      - sharp,gp2ap002a00f
+      - sharp,gp2ap002s00f
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+    description: an interrupt for proximity, usually a GPIO line
+
+  vdd-supply:
+    description: VDD power supply a phandle to a regulator
+
+  vio-supply:
+    description: VIO power supply a phandle to a regulator
+
+  io-channels:
+    maxItems: 1
+    description: ALSOUT ADC channel to read the ambient light
+
+  io-channel-names:
+    const: alsout
+
+  sharp,proximity-far-hysteresis:
+    $ref: /schemas/types.yaml#/definitions/uint8
+    description: |
+      Hysteresis setting for "far" object detection, this setting is
+      device-unique and adjust the optical setting for proximity detection
+      of a "far away" object in front of the sensor.
+
+  sharp,proximity-close-hysteresis:
+    $ref: /schemas/types.yaml#/definitions/uint8
+    description: |
+      Hysteresis setting for "close" object detection, this setting is
+      device-unique and adjust the optical setting for proximity detection
+      of a "close" object in front of the sensor.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - sharp,proximity-far-hysteresis
+  - sharp,proximity-close-hysteresis
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      light-sensor@44 {
+        compatible = "sharp,gp2ap002a00f";
+        reg = <0x44>;
+        interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+        vdd-supply = <&vdd_regulator>;
+        vio-supply = <&vio_regulator>;
+        io-channels = <&adc_channel>;
+        io-channel-names = "alsout";
+        sharp,proximity-far-hysteresis = /bits/ 8 <0x2f>;
+        sharp,proximity-close-hysteresis = /bits/ 8 <0x0f>;
+      };
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/proximity/devantech-srf04.yaml b/Documentation/devicetree/bindings/iio/proximity/devantech-srf04.yaml
index 4e80ea7c1475..8afbac24c34e 100644
--- a/Documentation/devicetree/bindings/iio/proximity/devantech-srf04.yaml
+++ b/Documentation/devicetree/bindings/iio/proximity/devantech-srf04.yaml
@@ -51,6 +51,24 @@ properties:
       the time between two interrupts is measured in the driver.
     maxItems: 1
 
+  power-gpios:
+    description:
+      Definition of the GPIO for power management of connected peripheral
+      (output).
+      This GPIO can be used by the external hardware for power management.
+      When the device gets suspended it's switched off and when it resumes
+      it's switched on again. After some period of inactivity the driver
+      get suspended automatically (autosuspend feature).
+    maxItems: 1
+
+  startup-time-ms:
+    description:
+      This is the startup time the device needs after a resume to be up and
+      running.
+    minimum: 0
+    maximum: 1000
+    default: 100
+
 required:
   - compatible
   - trig-gpios
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 9e67944bec9c..561768ca874c 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -267,6 +267,8 @@ patternProperties:
     description: Dragino Technology Co., Limited
   "^dserve,.*":
     description: dServe Technology B.V.
+  "^dynaimage,.*":
+    description: Dyna-Image
   "^ea,.*":
     description: Embedded Artists AB
   "^ebs-systart,.*":