infineon,autanalog-ptcomp-comp

Description

Infineon AutAnalog PTComp comparator.

Each node represents one of the two comparators (Comp0 or Comp1) within
a PTComp block. The comparator compares the voltage on the non-inverting
input to the voltage on the inverting input and produces a digital output.

Input routing is configured via positive-mux and negative-mux properties
using the cy_en_autanalog_ptcomp_comp_mux_t values:
  0  = CTB0 Pin 1            8  = CTB0 OA0 output
  1  = CTB0 Pin 4            9  = CTB0 OA1 output
  2  = CTB0 Pin 6           10  = CTB1 OA0 output
  3  = CTB0 Pin 7           11  = CTB1 OA1 output
  4  = CTB1 Pin 1           12  = DAC0 (VREF0)
  5  = CTB1 Pin 4           13  = DAC1 (VREF1)
  6  = CTB1 Pin 6           14  = PRB OUT0 (VREF2)
  7  = CTB1 Pin 7           15  = PRB OUT1 (VREF3)
  16-23 = SAR/PTC GPIO Pin 0-7

The parent node must have compatible "infineon,autanalog-ptcomp".

Examples

/*
 * Use constants from <dt-bindings/comparator/infineon-autanalog-ptcomp.h>.
 */
ptcomp0: ptcomp@0 {
    compatible = "infineon,autanalog-ptcomp";
    status = "okay";

    comp0: comp@0 {
        compatible = "infineon,autanalog-ptcomp-comp";
        reg = <0>;
        power-mode = <IFX_AUTANALOG_PTCOMP_PWR_NORMAL>;
        interrupt-mode = <IFX_AUTANALOG_PTCOMP_INT_EDGE_RISING>;
        positive-mux = <IFX_AUTANALOG_PTCOMP_MUX_GPIO2>;
        negative-mux = <IFX_AUTANALOG_PTCOMP_MUX_PRB_OUT0>;
    };
};

/*
 * Advanced mode: 2 dynamic mux config slots on comp@0.
 * Each child node is one slot with named properties.
 */
ptcomp0: ptcomp@0 {
    compatible = "infineon,autanalog-ptcomp";
    status = "okay";

    comp0: comp@0 {
        compatible = "infineon,autanalog-ptcomp-comp";
        reg = <0>;
        power-mode = <IFX_AUTANALOG_PTCOMP_PWR_NORMAL>;
        interrupt-mode = <IFX_AUTANALOG_PTCOMP_INT_EDGE_RISING>;
        positive-mux = <IFX_AUTANALOG_PTCOMP_MUX_GPIO2>;
        negative-mux = <IFX_AUTANALOG_PTCOMP_MUX_PRB_OUT0>;

        dyn-cfg-0 {
            positive-mux = <IFX_AUTANALOG_PTCOMP_MUX_GPIO2>;
            negative-mux = <IFX_AUTANALOG_PTCOMP_MUX_PRB_OUT0>;
        };

        dyn-cfg-1 {
            positive-mux = <IFX_AUTANALOG_PTCOMP_MUX_GPIO2>;
            negative-mux = <IFX_AUTANALOG_PTCOMP_MUX_DAC0>;
        };
    };
};

Properties

Top level properties

These property descriptions apply to “infineon,autanalog-ptcomp-comp” nodes themselves. This page also describes child node properties in the following sections.

Node specific properties

Properties not inherited from the base binding file.

Name

Type

Details

power-mode

int

 
Comparator power mode.
Use IFX_AUTANALOG_PTCOMP_PWR_* constants from
<dt-bindings/comparator/infineon-autanalog-ptcomp.h>.
  IFX_AUTANALOG_PTCOMP_PWR_OFF    (0) - Off
  IFX_AUTANALOG_PTCOMP_PWR_ULP    (1) - Ultra-low power (< 300nA, 7us)
  IFX_AUTANALOG_PTCOMP_PWR_LP     (2) - Low power (< 10uA, 1us)
  IFX_AUTANALOG_PTCOMP_PWR_NORMAL (3) - Normal (< 150uA, 0.1us)

This property is required.

Legal values: 0, 1, 2, 3

hysteresis

boolean

 
Enable 30mV input hysteresis for the comparator.

interrupt-mode

int

 
Edge detection mode for comparator interrupts.
Use IFX_AUTANALOG_PTCOMP_INT_* constants from
<dt-bindings/comparator/infineon-autanalog-ptcomp.h>.
  IFX_AUTANALOG_PTCOMP_INT_DISABLED     (0) - Disabled
  IFX_AUTANALOG_PTCOMP_INT_EDGE_RISING  (1) - Rising edge
  IFX_AUTANALOG_PTCOMP_INT_EDGE_FALLING (2) - Falling edge
  IFX_AUTANALOG_PTCOMP_INT_EDGE_BOTH    (3) - Both edges

positive-mux

int

 
Non-inverting (positive) input mux selector.
Use IFX_AUTANALOG_PTCOMP_MUX_* constants from
<dt-bindings/comparator/infineon-autanalog-ptcomp.h>, values 0-23.

This property is required.

negative-mux

int

 
Inverting (negative) input mux selector.
Use IFX_AUTANALOG_PTCOMP_MUX_* constants from
<dt-bindings/comparator/infineon-autanalog-ptcomp.h>, values 0-23.

This property is required.

pp-input-source

int

 
Post-processing input source.
Use IFX_AUTANALOG_PTCOMP_PP_SRC_* constants from
<dt-bindings/comparator/infineon-autanalog-ptcomp.h>.
  IFX_AUTANALOG_PTCOMP_PP_SRC_DISABLED (0)
  IFX_AUTANALOG_PTCOMP_PP_SRC_COMP0    (1)
  IFX_AUTANALOG_PTCOMP_PP_SRC_COMP1    (2)

Legal values: 0, 1, 2

pp-input-type

int

 
Post-processing edge/level sensing type.
Use IFX_AUTANALOG_PTCOMP_PP_TYPE_* constants from
<dt-bindings/comparator/infineon-autanalog-ptcomp.h>.
  IFX_AUTANALOG_PTCOMP_PP_TYPE_LEVEL        (0)
  IFX_AUTANALOG_PTCOMP_PP_TYPE_EDGE_RISING  (1)
  IFX_AUTANALOG_PTCOMP_PP_TYPE_EDGE_FALLING (2)
  IFX_AUTANALOG_PTCOMP_PP_TYPE_EDGE_BOTH    (3)

Legal values: 0, 1, 2, 3

pp-count-mode

int

 
Post-processing counter mode.
Use IFX_AUTANALOG_PTCOMP_PP_MODE_* constants from
<dt-bindings/comparator/infineon-autanalog-ptcomp.h>.
  IFX_AUTANALOG_PTCOMP_PP_MODE_DIRECT (0) - Count events, reset on condition
  IFX_AUTANALOG_PTCOMP_PP_MODE_FRAME  (1) - Count events within a frame period
  IFX_AUTANALOG_PTCOMP_PP_MODE_WINDOW (2) - Sliding window counter

Legal values: 0, 1, 2

pp-data-function

int

 
Post-processing LUT boolean function combining both comp outputs.
Use IFX_AUTANALOG_PTCOMP_PP_FUNC_* constants from
<dt-bindings/comparator/infineon-autanalog-ptcomp.h>, values 0-13.

pp-window-size

int

 
Post-processing window size for WINDOW mode.
Use IFX_AUTANALOG_PTCOMP_PP_WIN_* constants from
<dt-bindings/comparator/infineon-autanalog-ptcomp.h>.
  IFX_AUTANALOG_PTCOMP_PP_WIN_2   (0)
  IFX_AUTANALOG_PTCOMP_PP_WIN_4   (1)
  IFX_AUTANALOG_PTCOMP_PP_WIN_8   (2)
  IFX_AUTANALOG_PTCOMP_PP_WIN_16  (3)
  IFX_AUTANALOG_PTCOMP_PP_WIN_32  (4)
  IFX_AUTANALOG_PTCOMP_PP_WIN_64  (5)
  IFX_AUTANALOG_PTCOMP_PP_WIN_128 (6)

Legal values: 0, 1, 2, 3, 4, 5, 6

pp-period

int

 
Post-processing frame period in clock cycles (FRAME mode).

pp-limit-condition

int

 
Post-processing counter limit condition.
Use IFX_AUTANALOG_PTCOMP_PP_COND_* constants from
<dt-bindings/comparator/infineon-autanalog-ptcomp.h>.
  IFX_AUTANALOG_PTCOMP_PP_COND_BELOW   (0) - Below threshold-low
  IFX_AUTANALOG_PTCOMP_PP_COND_INSIDE  (1) - Between low and high
  IFX_AUTANALOG_PTCOMP_PP_COND_ABOVE   (2) - Above threshold-high
  IFX_AUTANALOG_PTCOMP_PP_COND_OUTSIDE (3) - Below low or above high

Legal values: 0, 1, 2, 3

pp-threshold-low

int

 
Post-processing low threshold for counter range detection.

pp-threshold-high

int

 
Post-processing high threshold for counter range detection.

Deprecated node specific properties

Deprecated properties not inherited from the base binding file.

(None)

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 “infineon,autanalog-ptcomp-comp” compatible.

Name

Type

Details

reg

array

 
Comparator index within the PTComp block (0 or 1).

This property is required.

See Important properties for more information.

status

string

 
Indicates the operational status of the hardware or other
resource that the node represents. In particular:

  - "okay" means the resource is operational and, for example,
    can be used by device drivers
  - "disabled" means the resource is not operational and the system
    should treat it as if it is not present

For details, see "2.3.4 status" in Devicetree Specification v0.4.

Legal values: okay, disabled, reserved, fail, fail-sss

See Important properties for more information.

compatible

string-array

 
This property is a list of strings that essentially define what
type of hardware or other resource this devicetree node
represents. Each device driver checks for specific compatible
property values to find the devicetree nodes that represent
resources that the driver should manage.

The recommended format is "vendor,device", The "vendor" part is
an abbreviated name of the vendor. The "device" is usually from
the datasheet.

The compatible property can have multiple values, ordered from
most- to least-specific. Having additional values is useful when the
device is a specific instance of a more general family, to allow the
system to match the most specific driver available.

For details, see "2.3.1 compatible" in Devicetree Specification v0.4.

This property is required.

See Important properties for more information.

reg-names

string-array

 
Optional names given to each register block in the "reg" property.
For example:

  / {
       soc {
           #address-cells = <1>;
           #size-cells = <1>;

           uart@1000 {
               reg = <0x1000 0x2000>, <0x3000 0x4000>;
               reg-names = "foo", "bar";
           };
       };
  };

The uart@1000 node has two register blocks:

  - one with base address 0x1000, size 0x2000, and name "foo"
  - another with base address 0x3000, size 0x4000, and name "bar"

interrupts

array

 
Information about interrupts generated by the device, encoded as an array
of one or more interrupt specifiers. The format of the data in this property
varies by where the device appears in the interrupt tree. Devices with the same
"interrupt-parent" will use the same format in their interrupts properties.

For details, see "2.4 Interrupts and Interrupt Mapping" in
Devicetree Specification v0.4.

See Important properties for more information.

interrupts-extended

compound

 
Extended interrupt specifier for device, used as an alternative to
the "interrupts" property.

For details, see "2.4 Interrupts and Interrupt Mapping" in
Devicetree Specification v0.4.

interrupt-names

string-array

 
Optional names given to each interrupt generated by a device.
The interrupts themselves are defined in either "interrupts" or
"interrupts-extended" properties.

For details, see "2.4 Interrupts and Interrupt Mapping" in
Devicetree Specification v0.4.

interrupt-parent

phandle

 
If present, this refers to the node which handles interrupts generated
by this device.

For details, see "2.4 Interrupts and Interrupt Mapping" in
Devicetree Specification v0.4.

label

string

 
Human readable string describing the device. Use of this property is
deprecated except as needed on a case-by-case basis.

For details, see "4.1.2 Miscellaneous Properties" in Devicetree
Specification v0.4.

See Important properties for more information.

clocks

phandle-array

 
Information about the device's clock providers. In general, this property
should follow conventions established in the dt-schema binding:

  https://github.com/devicetree-org/dt-schema/blob/main/dtschema/schemas/clock/clock.yaml

clock-names

string-array

 
Optional names given to each clock provider in the "clocks" property.

#address-cells

int

 
This property encodes the number of <u32> cells used by address fields
in "reg" properties in this node's children.

For details, see "2.3.5 #address-cells and #size-cells" in Devicetree
Specification v0.4.

#size-cells

int

 
This property encodes the number of <u32> cells used by size fields in
"reg" properties in this node's children.

For details, see "2.3.5 #address-cells and #size-cells" in Devicetree
Specification v0.4.

dma-coherent

boolean

 
Indicates that the device is capable of coherent DMA operations.

For details, see "2.3.10 dma-coherent" in Devicetree Specification v0.4.

dmas

phandle-array

 
DMA channel specifiers relevant to the device.

dma-names

string-array

 
Optional names given to the DMA channel specifiers in the "dmas" property.

io-channels

phandle-array

 
IO channel specifiers relevant to the device.

io-channel-names

string-array

 
Optional names given to the IO channel specifiers in the "io-channels" property.

mboxes

phandle-array

 
Mailbox / IPM channel specifiers relevant to the device.

mbox-names

string-array

 
Optional names given to the mbox specifiers in the "mboxes" property.

power-domains

phandle-array

 
Power domain specifiers relevant to the device.

power-domain-names

string-array

 
Optional names given to the power domain specifiers in the "power-domains" property.

#power-domain-cells

int

 
Number of cells in power-domains property

hwlocks

phandle-array

 
HW spinlock id relevant to the device.

hwlock-names

string-array

 
Optional names given to the hwlock specifiers in the "hwlocks" property.

zephyr,deferred-init

boolean

 
Do not initialize device automatically on boot. Device should be manually
initialized using device_init().

wakeup-source

boolean

 
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.

zephyr,pm-device-runtime-auto

boolean

 
Automatically configure the device for runtime power management after the
init function runs.

zephyr,disabling-power-states

phandles

 
List of power states that will disable this device power.

Child node properties

Name

Type

Details

positive-mux

int

 
Non-inverting (positive) input mux selector.
Use IFX_AUTANALOG_PTCOMP_MUX_* constants from
<dt-bindings/comparator/infineon-autanalog-ptcomp.h>.

negative-mux

int

 
Inverting (negative) input mux selector.
Use IFX_AUTANALOG_PTCOMP_MUX_* constants from
<dt-bindings/comparator/infineon-autanalog-ptcomp.h>.