Merge tag 'iio-for-5.4b-take3' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of new device support, cleanups and features for IIO in the 5.4 cycle

Revised pull request to fix up a missing Signed-off-by and roll in
a fix in the lsm9ds1 support after I broke it when applying.
Revised again because the fix changed a hash meaning a fix
that previously followed it now had the wrong fixes tag.

A few fixes in here that could have gone a faster path but aren't quite
worth the rush for 5.3.

New device support
* ad7606
  - Support the ad7606b which adds a software controlled mode alongside
    the pin controlled only approach of the ad7606. Including dt-bindings.
* lsm6dsx
  - Add support for the gyro and accelerometer part of the lsm9ds1 which is
    a compound device also including a magnetometer (st_sensors driver).
    Includes bindings and precursor rework of the driver.

Features
* ad7192
  - Add support for low pass filter control.
  - DT binding docs.

Cleanups and minor fixes
* MAINTAINERS
  - Fix a typo in a path.
  - Add entry for ad7606
* ad5380
  - Fix a failure to dereference a pointer before atempting to assign the
    value.
* ad7192
  - Drop platform data as not used in mainline and we now have full DT bindings.
* ad7606
  - YAML conversion for dt-bindings.
* adis16240
  - Rework write_raw to make it more readable using GENMASK.
* adis16460
  - Fix and issue with an unsigned variable holding potential negatives.
* cros_ec
  - Fix missing default of calibration vector so that we get 'something'
    before calibration is complete on a given axis.
* hid-sensors
  - Use int_pow instead of opencoding.
* isl29501
  - rename dt-binding docs to include renesas inline with other renesas parts
    and general current convention.
* kxcjk1013
  - Improve comments on the 'unusual' ACPI ids used to identify which sensor
    is which in certain laptops.
* lsm6dsx
  - Add one bit to the fifo status masks for a number of parts.
  - Drop a reserved entry from the sensitivity values to tidy up interface.
  - Use core conversion macro from G to m/s^2 for lsm9ds1 to make it easier
    to relate to the datasheet and consistent with other parts supported.
* max1027
  - Use device managed APIs to avoid manual error handling and cleanup.
* rfd77402
  - Typo in Kconfig help.
* sc27xx
  - Switch to polling mode from interrupts as interrupt handling typically
    to slow for very short sleeps.
* st-sensors
  - Fix some missing selects for regmap.
* tools
  - Add a .gitignore containing the binary outputs.

* tag 'iio-for-5.4b-take3' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (27 commits)
  iio: imu: st_lsm6dsx: rely on IIO_G_TO_M_S_2 for gain definition for LSM9DS1
  iio: imu: st_lsm6dsx: remove invalid gain value for LSM9DS1
  iio: cros_ec: set calibscale for 3d MEMS to unit vector
  iio: dac: ad5380: fix incorrect assignment to val
  iio: imu: st_lsm6dsx: Fix FIFO diff mask for tagged fifo
  dt-bindings: iio: imu: st_lsm6dsx: add lsm9ds1 device bindings
  iio: imu: st_lsm6dsx: add support for accel/gyro unit of lsm9ds1
  iio: imu: st_lsm6dsx: move register definitions to sensor_settings struct
  iio: imu: st_lsm6dsx: introduce update_fifo function pointer
  dt-bindings: iio: light: isl29501: Rename bindings documentation file
  Kconfig: Fix the reference to the RFD77402 ToF sensor in the 'help' section
  iio: st_sensors: Fix build error
  dt-bindings: iio: adc: Add AD7606B ADC documentation
  dt-bindings: iio: adc: Migrate AD7606 documentation to yaml
  MAINTAINERS: Add Beniamin Bia for AD7606 driver
  iio: adc: ad7606: Add support for AD7606B ADC
  tools: iio: add .gitignore
  iio: adc: sc27xx: Change to polling mode to read data
  iio: hid-sensor-attributes: Convert to use int_pow()
  iio: adc: max1027: Use device-managed APIs
  ...

5 files changed, 260 insertions, 66 deletions

diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
new file mode 100644
index 000000000000..676ec42e1438
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2019 Analog Devices Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bindings/iio/adc/adi,ad7192.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7192 ADC device driver
+
+maintainers:
+  - Michael Hennerich <michael.hennerich@analog.com>
+
+description: |
+  Bindings for the Analog Devices AD7192 ADC device. Datasheet can be
+  found here:
+  https://www.analog.com/media/en/technical-documentation/data-sheets/AD7192.pdf
+
+properties:
+  compatible:
+    enum:
+      - adi,ad7190
+      - adi,ad7192
+      - adi,ad7193
+      - adi,ad7195
+
+  reg:
+    maxItems: 1
+
+  spi-cpol: true
+
+  spi-cpha: true
+
+  clocks:
+    maxItems: 1
+    description: phandle to the master clock (mclk)
+
+  clock-names:
+    items:
+      - const: mclk
+
+  interrupts:
+    maxItems: 1
+
+  dvdd-supply:
+    description: DVdd voltage supply
+    items:
+      - const: dvdd
+
+  avdd-supply:
+    description: AVdd voltage supply
+    items:
+      - const: avdd
+
+  adi,rejection-60-Hz-enable:
+    description: |
+      This bit enables a notch at 60 Hz when the first notch of the sinc
+      filter is at 50 Hz. When REJ60 is set, a filter notch is placed at
+      60 Hz when the sinc filter first notch is at 50 Hz. This allows
+      simultaneous 50 Hz/ 60 Hz rejection.
+    type: boolean
+
+  adi,refin2-pins-enable:
+    description: |
+      External reference applied between the P1/REFIN2(+) and P0/REFIN2(−) pins.
+    type: boolean
+
+  adi,buffer-enable:
+    description: |
+      Enables the buffer on the analog inputs. If cleared, the analog inputs
+      are unbuffered, lowering the power consumption of the device. If this
+      bit is set, the analog inputs are buffered, allowing the user to place
+      source impedances on the front end without contributing gain errors to
+      the system.
+    type: boolean
+
+  adi,burnout-currents-enable:
+    description: |
+      When this bit is set to 1, the 500 nA current sources in the signal
+      path are enabled. When BURN = 0, the burnout currents are disabled.
+      The burnout currents can be enabled only when the buffer is active
+      and when chop is disabled.
+    type: boolean
+
+  bipolar:
+    description: see Documentation/devicetree/bindings/iio/adc/adc.txt
+    type: boolean
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+  - dvdd-supply
+  - avdd-supply
+  - spi-cpol
+  - spi-cpha
+
+examples:
+  - |
+    spi0 {
+      adc@0 {
+        compatible = "adi,ad7192";
+        reg = <0>;
+        spi-max-frequency = <1000000>;
+        spi-cpol;
+        spi-cpha;
+        clocks = <&ad7192_mclk>;
+        clock-names = "mclk";
+        #interrupt-cells = <2>;
+        interrupts = <25 0x2>;
+        interrupt-parent = <&gpio>;
+        dvdd-supply = <&dvdd>;
+        avdd-supply = <&avdd>;
+
+        adi,refin2-pins-enable;
+        adi,rejection-60-Hz-enable;
+        adi,buffer-enable;
+        adi,burnout-currents-enable;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.txt b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.txt
deleted file mode 100644
index d8652460198e..000000000000
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.txt
+++ /dev/null
@@ -1,66 +0,0 @@
-Analog Devices AD7606 Simultaneous Sampling ADC
-
-Required properties for the AD7606:
-
-- compatible: Must be one of
-	* "adi,ad7605-4"
-	* "adi,ad7606-8"
-	* "adi,ad7606-6"
-	* "adi,ad7606-4"
-	* "adi,ad7616"
-- reg: SPI chip select number for the device
-- spi-max-frequency: Max SPI frequency to use
-	see: Documentation/devicetree/bindings/spi/spi-bus.txt
-- spi-cpha: See Documentation/devicetree/bindings/spi/spi-bus.txt
-- avcc-supply: phandle to the Avcc power supply
-- interrupts: IRQ line for the ADC
-	see: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
-- adi,conversion-start-gpios: must be the device tree identifier of the CONVST pin.
-		  This logic input is used to initiate conversions on the analog
-		  input channels. As the line is active high, it should be marked
-		  GPIO_ACTIVE_HIGH.
-
-Optional properties:
-
-- reset-gpios: must be the device tree identifier of the RESET pin. If specified,
-	       it will be asserted during driver probe. As the line is active high,
-	       it should be marked GPIO_ACTIVE_HIGH.
-- standby-gpios: must be the device tree identifier of the STBY pin. This pin is used
-		to place the AD7606 into one of two power-down modes, Standby mode or
-		Shutdown mode. As the line is active low, it should be marked
-		GPIO_ACTIVE_LOW.
-- adi,first-data-gpios: must be the device tree identifier of the FRSTDATA pin.
-		    The FRSTDATA output indicates when the first channel, V1, is
-		    being read back on either the parallel, byte or serial interface.
-		    As the line is active high, it should be marked GPIO_ACTIVE_HIGH.
-- adi,range-gpios: must be the device tree identifier of the RANGE pin. The polarity on
-	      this pin determines the input range of the analog input channels. If
-	      this pin is tied to a logic high, the analog input range is ±10V for
-	      all channels. If this pin is tied to a logic low, the analog input range
-	      is ±5V for all channels. As the line is active high, it should be marked
-	      GPIO_ACTIVE_HIGH.
-- adi,oversampling-ratio-gpios: must be the device tree identifier of the over-sampling
-				mode pins. As the line is active high, it should be marked
-				GPIO_ACTIVE_HIGH.
-
-Example:
-
-	adc@0 {
-		compatible = "adi,ad7606-8";
-		reg = <0>;
-		spi-max-frequency = <1000000>;
-		spi-cpol;
-
-		avcc-supply = <&adc_vref>;
-
-		interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
-		interrupt-parent = <&gpio>;
-
-		adi,conversion-start-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
-		reset-gpios = <&gpio 27 GPIO_ACTIVE_HIGH>;
-		adi,first-data-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
-		adi,oversampling-ratio-gpios = <&gpio 18 GPIO_ACTIVE_HIGH
-						&gpio 23 GPIO_ACTIVE_HIGH
-						&gpio 26 GPIO_ACTIVE_HIGH>;
-		standby-gpios = <&gpio 24 GPIO_ACTIVE_LOW>;
-	};
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
new file mode 100644
index 000000000000..cc544fdc38be
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
@@ -0,0 +1,138 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7606.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7606 Simultaneous Sampling ADC
+
+maintainers:
+  - Beniamin Bia <beniamin.bia@analog.com>
+  - Stefan Popa <stefan.popa@analog.com>
+
+description: |
+  Analog Devices AD7606 Simultaneous Sampling ADC
+  https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606_7606-6_7606-4.pdf
+  https://www.analog.com/media/en/technical-documentation/data-sheets/AD7606B.pdf
+  https://www.analog.com/media/en/technical-documentation/data-sheets/AD7616.pdf
+
+properties:
+  compatible:
+    enum:
+      - adi,ad7605-4
+      - adi,ad7606-8
+      - adi,ad7606-6
+      - adi,ad7606-4
+      - adi,ad7606b
+      - adi,ad7616
+
+  reg:
+    maxItems: 1
+
+  spi-cpha: true
+
+  avcc-supply:
+    description:
+      Phandle to the Avcc power supply
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  adi,conversion-start-gpios:
+    description:
+      Must be the device tree identifier of the CONVST pin.
+      This logic input is used to initiate conversions on the analog
+      input channels. As the line is active high, it should be marked
+      GPIO_ACTIVE_HIGH.
+    maxItems: 1
+
+  reset-gpios:
+    description:
+      Must be the device tree identifier of the RESET pin. If specified,
+      it will be asserted during driver probe. As the line is active high,
+      it should be marked GPIO_ACTIVE_HIGH.
+    maxItems: 1
+
+  standby-gpios:
+    description:
+       Must be the device tree identifier of the STBY pin. This pin is used
+       to place the AD7606 into one of two power-down modes, Standby mode or
+       Shutdown mode. As the line is active low, it should be marked
+       GPIO_ACTIVE_LOW.
+    maxItems: 1
+
+  adi,first-data-gpios:
+    description:
+      Must be the device tree identifier of the FRSTDATA pin.
+      The FRSTDATA output indicates when the first channel, V1, is
+      being read back on either the parallel, byte or serial interface.
+      As the line is active high, it should be marked GPIO_ACTIVE_HIGH.
+    maxItems: 1
+
+  adi,range-gpios:
+    description:
+      Must be the device tree identifier of the RANGE pin. The polarity on
+      this pin determines the input range of the analog input channels. If
+      this pin is tied to a logic high, the analog input range is ±10V for
+      all channels. If this pin is tied to a logic low, the analog input range
+      is ±5V for all channels. As the line is active high, it should be marked
+      GPIO_ACTIVE_HIGH.
+    maxItems: 1
+
+  adi,oversampling-ratio-gpios:
+    description:
+      Must be the device tree identifier of the over-sampling
+      mode pins. As the line is active high, it should be marked
+      GPIO_ACTIVE_HIGH.
+    maxItems: 1
+
+  adi,sw-mode:
+    description:
+      Software mode of operation, so far available only for ad7616 and ad7606b.
+      It is enabled when all three oversampling mode pins are connected to
+      high level. The device is configured by the corresponding registers. If the
+      adi,oversampling-ratio-gpios property is defined, then the driver will set the
+      oversampling gpios to high. Otherwise, it is assumed that the pins are hardwired
+      to VDD.
+    type: boolean
+
+required:
+  - compatible
+  - reg
+  - spi-cpha
+  - avcc-supply
+  - interrupts
+  - adi,conversion-start-gpios
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    spi0 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        adc@0 {
+                compatible = "adi,ad7606-8";
+                reg = <0>;
+                spi-max-frequency = <1000000>;
+                spi-cpol;
+                spi-cpha;
+
+                avcc-supply = <&adc_vref>;
+
+                interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
+                interrupt-parent = <&gpio>;
+
+                adi,conversion-start-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
+                reset-gpios = <&gpio 27 GPIO_ACTIVE_HIGH>;
+                adi,first-data-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
+                adi,oversampling-ratio-gpios = <&gpio 18 GPIO_ACTIVE_HIGH
+                                                &gpio 23 GPIO_ACTIVE_HIGH
+                                                &gpio 26 GPIO_ACTIVE_HIGH>;
+                standby-gpios = <&gpio 24 GPIO_ACTIVE_LOW>;
+                adi,sw-mode;
+        };
+    };
+...
diff --git a/Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt b/Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt
index 87407d110bb7..6d0c050d89fe 100644
--- a/Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt
+++ b/Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt
@@ -13,6 +13,7 @@ Required properties:
   "st,lsm6dsr"
   "st,lsm6ds3tr-c"
   "st,ism330dhcx"
+  "st,lsm9ds1-imu"
 - reg: i2c address of the sensor / spi cs line
 
 Optional properties:
diff --git a/Documentation/devicetree/bindings/iio/light/isl29501.txt b/Documentation/devicetree/bindings/iio/light/renesas,isl29501.txt
index 46957997fee3..46957997fee3 100644
--- a/Documentation/devicetree/bindings/iio/light/isl29501.txt
+++ b/Documentation/devicetree/bindings/iio/light/renesas,isl29501.txt