Merge tag 'staging-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

		When counting down the counter start from preset value

		and fire event when reach 0.

What:		/sys/bus/iio/devices/iio:deviceX/in_count_quadrature_mode_available

KernelVersion:	4.12

Contact:	benjamin.gaignard@st.com

Description:

		Reading returns the list possible quadrature modes.

What:		/sys/bus/iio/devices/iio:deviceX/in_count0_quadrature_mode

KernelVersion:	4.12

Contact:	benjamin.gaignard@st.com

Description:

		Configure the device counter quadrature modes:

		channel_A:

			Encoder A input servers as the count input and B as

			the UP/DOWN direction control input.

		channel_B:

			Encoder B input serves as the count input and A as

			the UP/DOWN direction control input.

		quadrature:

			Encoder A and B inputs are mixed to get direction

			and count with a scale of 0.25.

What:		/sys/bus/iio/devices/iio:deviceX/in_count_enable_mode_available

KernelVersion:	4.12

Contact:	benjamin.gaignard@st.com

# 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;

        };

    };

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>;

	};

# 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;

        };

    };

...

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.

Contents of a stm32 adc child node:

-----------------------------------