nxp,kinetis-acmp
Vendor: NXP Semiconductors N.V.
Description
NXP Kinetis ACMP (Analog CoMParator)
The following example displays the minimum node layout:
acmp0: acmp@deadbeef {
compatible = "nxp,kinetis-acmp";
reg = <0xdeadbeef 0x1000>;
interrupts = <0 0>;
clocks = <&scg KINETIS_SCG_BUS_CLK>;
status = "disabled";
};
Enabling the comparator node requires setting the minimum default
configuration of the comparator. This includes selecting the
positive and negative inputs, and routing them using pinctrl:
&pinctrl {
acmp0_default: acmp0_default {
group0 {
...
};
};
};
&acmp0 {
status = "okay";
pinctrl-0 = <&acmp0_default>;
pinctrl-names = "default";
positive-mux-input = "IN0";
negative-mux-input = "IN1";
};
Properties
Node specific properties
Properties not inherited from the base binding file.
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Details |
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Legal values: |
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Legal values: |
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Legal values: |
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Legal values: |
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Filter sample count (0 to 7).
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Filter sample period in bus clock cycles (0 to 255).
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Legal values: |
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Legal values: |
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Legal values: |
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Pin configuration/s for the first state. Content is specific to the
selected pin controller driver implementation.
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Pin configuration/s for the second state. See pinctrl-0.
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Pin configuration/s for the third state. See pinctrl-0.
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Pin configuration/s for the fourth state. See pinctrl-0.
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Pin configuration/s for the fifth state. See pinctrl-0.
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Names for the provided states. The number of names needs to match the
number of states.
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Deprecated node specific properties
Deprecated properties not inherited from the base binding file.
Name |
Type |
Details |
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Deprecated. Please use enable-pin-out instead
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Deprecated. Please use use-unfiltered-output instead
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Deprecated. Please use enable-high-speed-mode instead
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Deprecated. Please use filter-enable-sample instead
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Deprecated. Please use filter-count instead
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Deprecated. Please use filter-period instead
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Deprecated. Please use enable-window-mode instead
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Base properties
Properties inherited from the base binding file, which defines common properties that may be set on many nodes. Not all of these may apply to the “nxp,kinetis-acmp” compatible.
Name |
Type |
Details |
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interrupts for device
This property is required. See Important properties for more information. |
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register space
This property is required. See Important properties for more information. |
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indicates the operational status of a device
Legal values: See Important properties for more information. |
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compatible strings
This property is required. See Important properties for more information. |
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name of each register space
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extended interrupt specifier for device
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name of each interrupt
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phandle to interrupt controller node
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Human readable string describing the device (used as device_get_binding() argument)
See Important properties for more information. This property is deprecated. |
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Clock gate information
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name of each clock
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number of address cells in reg property
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number of size cells in reg property
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DMA channels specifiers
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Provided names of DMA channel specifiers
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IO channels specifiers
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Provided names of IO channel specifiers
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mailbox / IPM channels specifiers
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Provided names of mailbox / IPM channel specifiers
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Power domain specifiers
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Provided names of power domain specifiers
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Number of cells in power-domains property
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Do not initialize device automatically on boot. Device should be manually
initialized using device_init().
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Property to identify that a device can be used as wake up source.
When this property is provided a specific flag is set into the
device that tells the system that the device is capable of
wake up the system.
Wake up capable devices are disabled (interruptions will not wake up
the system) by default but they can be enabled at runtime if necessary.
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Automatically configure the device for runtime power management after the
init function runs.
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List of power states that will disable this device power.
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