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Binding for Maxim MAX77686/MAX77802 32k clock generator block
This is a part of device tree bindings of MAX77686/MAX77802 multi-function
device. More information can be found in bindings/mfd/max77686.txt file for
MAX77686 and bindings/mfd/max77802.txt for MAX77802.
The MAX77686 contains three 32.768khz clock outputs that can be controlled
(gated/ungated) over I2C.
The MAX77802 contains two 32.768khz clock outputs that can be controlled
(gated/ungated) over I2C.
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),
- 1: 32khz_cp clock (max77686, max77802),
- 2: 32khz_pmic clock (max77686).
Clocks are defined as preprocessor macros in dt-bindings/clock/maxim,max77686.h
header for MAX77686 and dt-bindings/clock/maxim,max77802.h for MAX77802 and can
be used in device tree sources.
Example:
1. With MAX77686:
#include <dt-bindings/clock/maxim,max77686.h>
/* ... */
Node of the MFD chip
max77686: max77686@09 {
compatible = "maxim,max77686";
interrupt-parent = <&wakeup_eint>;
interrupts = <26 0>;
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@09 {
compatible = "maxim,max77802";
interrupt-parent = <&wakeup_eint>;
interrupts = <26 0>;
reg = <0x09>;
#clock-cells = <1>;
/* ... */
};
Clock consumer node
foo@0 {
compatible = "bar,foo";
/* ... */
clock-names = "my-clock";
clocks = <&max77802 MAX77802_CLK_32K_AP>;
};
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