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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/clock/maxim,max77686.txt | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/devicetree/bindings/clock/maxim,max77686.txt | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/clock/maxim,max77686.txt b/Documentation/devicetree/bindings/clock/maxim,max77686.txt new file mode 100644 index 000000000..3472b461c --- /dev/null +++ b/Documentation/devicetree/bindings/clock/maxim,max77686.txt @@ -0,0 +1,114 @@ +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 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@9 { + 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>; + }; + + +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>; + }; |