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Add Device Tree binding documentation for the clocks outputs in the Maxim 77802 Power Management IC. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Mike Turquette <mturquette@linaro.org>
45 lines
1.2 KiB
Plaintext
45 lines
1.2 KiB
Plaintext
Binding for Maxim MAX77802 32k clock generator block
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This is a part of device tree bindings of MAX77802 multi-function device.
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More information can be found in bindings/mfd/max77802.txt file.
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The MAX77802 contains two 32.768khz clock outputs that can be controlled
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(gated/ungated) over I2C.
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Following properties should be present in main device node of the MFD chip.
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Required properties:
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- #clock-cells: From common clock binding; shall be set to 1.
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Optional properties:
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- clock-output-names: From common clock binding.
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Each clock is assigned an identifier and client nodes can use this identifier
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to specify the clock which they consume. Following indices are allowed:
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- 0: 32khz_ap clock,
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- 1: 32khz_cp clock.
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Clocks are defined as preprocessor macros in dt-bindings/clock/maxim,max77802.h
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header and can be used in device tree sources.
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Example: Node of the MFD chip
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max77802: max77802@09 {
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compatible = "maxim,max77802";
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interrupt-parent = <&wakeup_eint>;
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interrupts = <26 0>;
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reg = <0x09>;
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#clock-cells = <1>;
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/* ... */
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};
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Example: Clock consumer node
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foo@0 {
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compatible = "bar,foo";
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/* ... */
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clock-names = "my-clock";
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clocks = <&max77802 MAX77802_CLK_32K_AP>;
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};
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