dt-bindings: clock: Drop maxim,max77686.txt

Binding for Maxim MAX77686/MAX77802/MAX77620 32k clock generator block

This is a part of device tree bindings of MAX77686/MAX77802/MAX77620

multi-function device. More information can be found in MFD DT binding

doc as follows:

	bindings/mfd/max77686.txt for MAX77686 and

	bindings/mfd/max77802.txt for MAX77802 and

	bindings/mfd/max77620.txt for MAX77620.

The MAX77686 contains three 32.768khz clock outputs that can be controlled

(gated/ungated) over I2C. Clocks are defined as preprocessor macros in

dt-bindings/clock/maxim,max77686.h.

The MAX77802 contains two 32.768khz clock outputs that can be controlled

(gated/ungated) over I2C. Clocks are defined as preprocessor macros in

dt-bindings/clock/maxim,max77802.h.

The MAX77686 contains one 32.768khz clock outputs that can be controlled

(gated/ungated) over I2C. Clocks are defined as preprocessor macros in

dt-bindings/clock/maxim,max77620.h.

Following properties should be presend in main device node of the MFD chip.

Required properties:

- #clock-cells: from common clock binding; shall be set to 1.

Optional properties:

- clock-output-names: From common clock binding.

Each clock is assigned an identifier and client nodes can use this identifier

to specify the clock which they consume. Following indices are allowed:

    - 0: 32khz_ap clock (max77686, max77802), 32khz_out0 (max77620)

    - 1: 32khz_cp clock (max77686, max77802),

    - 2: 32khz_pmic clock (max77686).

Clocks are defined as preprocessor macros in above dt-binding header for

respective chips.

Example:

1. With MAX77686:

#include <dt-bindings/clock/maxim,max77686.h>

/* ... */

	Node of the MFD chip

		max77686: max77686@9 {

			compatible = "maxim,max77686";

			interrupt-parent = <&wakeup_eint>;

			interrupts = <26 IRQ_TYPE_LEVEL_LOW>;

			reg = <0x09>;

			#clock-cells = <1>;

			/* ... */

		};

	Clock consumer node

		foo@0 {

			compatible = "bar,foo";

			/* ... */

			clock-names = "my-clock";

			clocks = <&max77686 MAX77686_CLK_PMIC>;

		};

2. With MAX77802:

#include <dt-bindings/clock/maxim,max77802.h>

/* ... */

	Node of the MFD chip

		max77802: max77802@9 {

			compatible = "maxim,max77802";

			interrupt-parent = <&wakeup_eint>;

			interrupts = <26 IRQ_TYPE_LEVEL_LOW>;

			reg = <0x09>;

			#clock-cells = <1>;

			/* ... */

		};

	Clock consumer node

		foo@0 {

			compatible = "bar,foo";

			/* ... */

			clock-names = "my-clock";

			clocks = <&max77802 MAX77802_CLK_32K_AP>;

		};

3. With MAX77620:

#include <dt-bindings/clock/maxim,max77620.h>

/* ... */

	Node of the MFD chip

		max77620: max77620@3c {

			compatible = "maxim,max77620";

			reg = <0x3c>;

			#clock-cells = <1>;

			/* ... */

		};

	Clock consumer node

		foo@0 {

			compatible = "bar,foo";

			/* ... */

			clock-names = "my-clock";

			clocks = <&max77620 MAX77620_CLK_32K_OUT0>;

		};

F:	Documentation/devicetree/bindings/*/maxim,max77693.yaml

F:	Documentation/devicetree/bindings/*/maxim,max77705*.yaml

F:	Documentation/devicetree/bindings/*/maxim,max77843.yaml

F:	Documentation/devicetree/bindings/clock/maxim,max77686.txt

F:	drivers/leds/leds-max77705.c

F:	drivers/*/*max77843.c

F:	drivers/*/max14577*.c