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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/input/dlg,da7280.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Dialog Semiconductor DA7280 Low Power High-Definition Haptic Driver
maintainers:
- Roy Im <roy.im.opensource@diasemi.com>
properties:
compatible:
const: dlg,da7280
reg:
maxItems: 1
description: I2C address of the device.
interrupts:
maxItems: 1
dlg,actuator-type:
enum:
- LRA # Linear Resonance Actuator type
- ERM-bar # Bar type Eccentric Rotating Mass
- ERM-coin # Coin type Eccentric Rotating Mass
dlg,const-op-mode:
$ref: /schemas/types.yaml#/definitions/uint32
enum:
- 1 # Direct register override (DRO) mode triggered by i2c (default)
- 2 # PWM data source mode controlled by PWM duty
description:
Haptic operation mode for FF_CONSTANT
dlg,periodic-op-mode:
$ref: /schemas/types.yaml#/definitions/uint32
enum:
- 1 # Register triggered waveform memory(RTWM) mode, the pattern
# assigned to the PS_SEQ_ID played as much times as PS_SEQ_LOOP
- 2 # Edge triggered waveform memory(ETWM) mode, external GPI(N)
# control are required to enable/disable and it needs to keep
# device enabled by sending magnitude (X > 0),
# the pattern is assigned to the GPI(N)_SEQUENCE_ID below
default: 1
description:
Haptic operation mode for FF_PERIODIC.
The default value is 1 for both of the operation modes.
For more details, please see the datasheet
dlg,nom-microvolt:
minimum: 0
maximum: 6000000
description:
Nominal actuator voltage rating
dlg,abs-max-microvolt:
minimum: 0
maximum: 6000000
description:
Absolute actuator maximum voltage rating
dlg,imax-microamp:
minimum: 0
maximum: 252000
default: 130000
description:
Actuator max current rating
dlg,impd-micro-ohms:
minimum: 0
maximum: 1500000000
description:
Impedance of the actuator
pwms:
maxItems: 1
dlg,ps-seq-id:
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 15
description:
The PS_SEQ_ID(pattern ID in waveform memory inside chip)
to play back when RTWM-MODE is enabled
dlg,ps-seq-loop:
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 15
description:
The PS_SEQ_LOOP, Number of times the pre-stored sequence pointed to by
PS_SEQ_ID or GPI(N)_SEQUENCE_ID is repeated
dlg,gpi0-seq-id:
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 15
description:
the GPI0_SEQUENCE_ID, pattern to play when gpi0 is triggered
dlg,gpi1-seq-id:
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 15
description:
the GPI1_SEQUENCE_ID, pattern to play when gpi1 is triggered
dlg,gpi2-seq-id:
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 15
description:
the GPI2_SEQUENCE_ID, pattern to play when gpi2 is triggered
dlg,gpi0-mode:
enum:
- Single-pattern
- Multi-pattern
description:
Pattern mode for gpi0
dlg,gpi1-mode:
enum:
- Single-pattern
- Multi-pattern
description:
Pattern mode for gpi1
dlg,gpi2-mode:
enum:
- Single-pattern
- Multi-pattern
description:
Pattern mode for gpi2
dlg,gpi0-polarity:
enum:
- Rising-edge
- Falling-edge
- Both-edge
description:
gpi0 polarity, Haptic will work by this edge option in case of ETWM mode
dlg,gpi1-polarity:
enum:
- Rising-edge
- Falling-edge
- Both-edge
description:
gpi1 polarity, Haptic will work by this edge option in case of ETWM mode
dlg,gpi2-polarity:
enum:
- Rising-edge
- Falling-edge
- Both-edge
description:
gpi2 polarity, Haptic will work by this edge option in case of ETWM mode
dlg,resonant-freq-hz:
minimum: 50
maximum: 300
default: 205
dlg,bemf-sens-enable:
$ref: /schemas/types.yaml#/definitions/flag
description:
Enable for internal loop computations
dlg,freq-track-enable:
$ref: /schemas/types.yaml#/definitions/flag
description:
Enable for resonant frequency tracking
dlg,acc-enable:
$ref: /schemas/types.yaml#/definitions/flag
description:
Enable for active acceleration
dlg,rapid-stop-enable:
$ref: /schemas/types.yaml#/definitions/flag
description:
Enable for rapid stop
dlg,amp-pid-enable:
$ref: /schemas/types.yaml#/definitions/flag
description:
Enable for the amplitude PID
dlg,mem-array:
$ref: /schemas/types.yaml#/definitions/uint32-array
minItems: 100
description:
Customized waveform memory (patterns) data downloaded to the device during initialization.
Each entry value must be included between 0 and 255.
required:
- compatible
- reg
- interrupts
- dlg,actuator-type
- dlg,const-op-mode
- dlg,periodic-op-mode
- dlg,nom-microvolt
- dlg,abs-max-microvolt
- dlg,imax-microamp
- dlg,impd-micro-ohms
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
haptics@4a {
compatible = "dlg,da7280";
reg = <0x4a>;
interrupt-parent = <&gpio6>;
interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
dlg,actuator-type = "LRA";
dlg,const-op-mode = <1>;
dlg,periodic-op-mode = <1>;
dlg,nom-microvolt = <2000000>;
dlg,abs-max-microvolt = <2000000>;
dlg,imax-microamp = <170000>;
dlg,resonant-freq-hz = <180>;
dlg,impd-micro-ohms = <10500000>;
dlg,freq-track-enable;
dlg,rapid-stop-enable;
dlg,mem-array = <0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00>;
};
};
|