Commit de554096 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'rtc-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux 

Pull RTC updates from Alexandre Belloni:
 "Mostly documentation/comment changes and non urgent fixes.

   - add or fix SPDX identifiers

   - NXP pcf*: fix datasheet URLs

   - imxdi: add wakeup support

   - pcf2127: handle timestamp interrupts, this fixes a possible
     interrupt storm

   - bd70528: Drop BD70528 support"

* tag 'rtc-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (33 commits)
  rtc: pcf8523: rename register and bit defines
  rtc: pcf2127: handle timestamp interrupts
  rtc: at91sam9: Remove unnecessary offset variable checks
  rtc: s5m: Check return value of s5m_check_peding_alarm_interrupt()
  rtc: spear: convert to SPDX identifier
  rtc: tps6586x: convert to SPDX identifier
  rtc: tps80031: convert to SPDX identifier
  rtc: rtd119x: Fix format of SPDX identifier
  rtc: sc27xx: Fix format of SPDX identifier
  rtc: palmas: convert to SPDX identifier
  rtc: max6900: convert to SPDX identifier
  rtc: ds1374: convert to SPDX identifier
  rtc: au1xxx: convert to SPDX identifier
  rtc: pcf85063: Update the PCF85063A datasheet revision
  dt-bindings: rtc: ti,bq32k: take maintainership
  rtc: pcf8563: Fix the datasheet URL
  rtc: pcf85063: Fix the datasheet URL
  rtc: pcf2127: Fix the datasheet URL
  dt-bindings: rtc: ti,bq32k: Convert to json-schema
  dt-bindings: rtc: rx8900: Convert to YAML schema
  ...
parents 6bce2443 4aa90c03

Documentation/devicetree/bindings/rtc/epson,rx8900.txt

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Real Time Clock driver for:

  - Epson RX8900

  - Micro Crystal rv8803



Required properties:

- compatible: should be: "microcrystal,rv8803" or "epson,rx8900"

- reg : the I2C address of the device for I2C



Optional properties:

- epson,vdet-disable : boolean, if present will disable voltage detector.

  Should be set if no backup battery is used.

- trickle-diode-disable : boolean, if present will disable internal trickle

  charger diode



Example:



	rtc: rtc@32 {

		compatible = "epson,rx8900"

		reg = <0x32>;

		epson,vdet-disable;

		trickle-diode-disable;

	};

Documentation/devicetree/bindings/rtc/epson,rx8900.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/rtc/epson,rx8900.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: EPSON RX8900 / Microcrystal RV8803 Real-Time Clock DT bindings



maintainers:

  - Marek Vasut <marex@denx.de>



allOf:

  - $ref: rtc.yaml#



properties:

  compatible:

    enum:

      - epson,rx8900

      - microcrystal,rv8803



  reg:

    maxItems: 1



  epson,vdet-disable:

    type: boolean

    description: |

      Disable voltage detector. Should be set if no backup battery is used.



  trickle-diode-disable: true



required:

  - compatible

  - reg



additionalProperties: false



examples:

  - |

    i2c {

        #address-cells = <1>;

        #size-cells = <0>;



        rtc@32 {

            compatible = "epson,rx8900";

            reg = <0x32>;

            epson,vdet-disable;

            trickle-diode-disable;

        };

    };

Documentation/devicetree/bindings/rtc/faraday,ftrtc010.txt

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* Faraday Technology FTRTC010 Real Time Clock



This RTC appears in for example the Storlink Gemini family of

SoCs.



Required properties:

- compatible : Should be one of:

  "faraday,ftrtc010"

  "cortina,gemini-rtc", "faraday,ftrtc010"



Optional properties:

- clocks: when present should contain clock references to the

  PCLK and EXTCLK clocks. Faraday calls the later CLK1HZ and

  says the clock should be 1 Hz, but implementers actually seem

  to choose different clocks here, like Cortina who chose

  32768 Hz (a typical low-power clock).

- clock-names: should name the clocks "PCLK" and "EXTCLK"

  respectively.



Examples:



rtc@45000000 {

	compatible = "cortina,gemini-rtc";

	reg = <0x45000000 0x100>;

	interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;

	clocks = <&foo 0>, <&foo 1>;

	clock-names = "PCLK", "EXTCLK";

};

Documentation/devicetree/bindings/rtc/faraday,ftrtc010.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/rtc/faraday,ftrtc010.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Faraday Technology FTRTC010 Real Time Clock



maintainers:

  - Linus Walleij <linus.walleij@linaro.org>



description: |

  This RTC appears in for example the Storlink Gemini family of SoCs.



properties:

  compatible:

    oneOf:

      - const: faraday,ftrtc010

      - items:

          - const: cortina,gemini-rtc

          - const: faraday,ftrtc010



  resets:

    maxItems: 1



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  clocks:

    minItems: 2

    items:

      - description: PCLK clocks

      - description: EXTCLK clocks. Faraday calls it CLK1HZ and says the clock

          should be 1 Hz, but implementers actually seem to choose different

          clocks here, like Cortina who chose 32768 Hz (a typical low-power clock).



  clock-names:

    items:

      - const: "PCLK"

      - const: "EXTCLK"



required:

  - compatible



additionalProperties: false



examples:

  - |

    #include <dt-bindings/interrupt-controller/irq.h>

    rtc@45000000 {

      compatible = "cortina,gemini-rtc", "faraday,ftrtc010";

      reg = <0x45000000 0x100>;

      interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;

      clocks = <&foo 0>, <&foo 1>;

      clock-names = "PCLK", "EXTCLK";

    };

Documentation/devicetree/bindings/rtc/rtc-m41t80.txt

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@@ -21,10 +21,19 @@ Optional properties: 
                      clock name

- wakeup-source: Enables wake up of host system on alarm



Optional child node:

- clock: Provide this if the square wave pin is used as boot-enabled fixed clock.



Example:

	rtc@68 {

		compatible = "st,m41t80";

		reg = <0x68>;

		interrupt-parent = <&UIC0>;

		interrupts = <0x9 0x8>;



		clock {

			compatible = "fixed-clock";

			#clock-cells = <0>;

			clock-frequency = <32768>;

		};

	};