Commit f82a1d15 authored by Javier Martinez Canillas's avatar Javier Martinez Canillas Committed by Mike Turquette

clk: max77802: Add DT binding documentation

Add Device Tree binding documentation for the clocks
outputs in the Maxim 77802 Power Management IC.
Signed-off-by: default avatarJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: default avatarMike Turquette <mturquette@linaro.org>
parent 83ccf16c
Binding for Maxim MAX77802 32k clock generator block
This is a part of device tree bindings of MAX77802 multi-function device.
More information can be found in bindings/mfd/max77802.txt file.
The MAX77802 contains two 32.768khz clock outputs that can be controlled
(gated/ungated) over I2C.
Following properties should be present 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,
- 1: 32khz_cp clock.
Clocks are defined as preprocessor macros in dt-bindings/clock/maxim,max77802.h
header and can be used in device tree sources.
Example: Node of the MFD chip
max77802: max77802@09 {
compatible = "maxim,max77802";
interrupt-parent = <&wakeup_eint>;
interrupts = <26 0>;
reg = <0x09>;
#clock-cells = <1>;
/* ... */
};
Example: Clock consumer node
foo@0 {
compatible = "bar,foo";
/* ... */
clock-names = "my-clock";
clocks = <&max77802 MAX77802_CLK_32K_AP>;
};
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