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Commit f9aaf4c1 authored by Fenglin Wu's avatar Fenglin Wu
Browse files

dt-bindings: input: Add binding settings for haptics audio/PWM mode 



Add device tree properties for haptics audio/PWM mode as per effect
settings.

Change-Id: Ib2733ac76fece01ec1982ef2c10e2475bce92c32
Signed-off-by: default avatarFenglin Wu <fenglinw@codeaurora.org>
parent 04415e1e

Documentation/devicetree/bindings/input/qti-haptics.txt

+20 −14
Original line number Diff line number Diff line
@@ -59,19 +59,6 @@ Properties: 
		specified in the LRA actuator datasheet. Allowed values are:

		0 to 20475. If this is not specified, 5715us play rate is used.



- qcom,external-waveform-source

  Usage:      optional

  Value type: <string>

  Definition: The haptics module supports to play with internal constant

		Vmax strength or play with patterns specified in its internal

		8-bytes waveform buffer. It can also play with the audio

		LINE-IN signal or PWM waveform coming from LINE-IN/PWM pin.

		This property specify the kind of the waveform resources

		on the LINE-IN/PWM pins. Allowed values are: "audio", "pwm".

		If this is not specified, internal signals (Vmax or buffer)

		will be selected according to the requriement of the playing

		waveforms.



- vdd-supply

  Usage:      optional

  Value type: <phandle>
@@ -114,7 +101,7 @@ waveforms/effects: 
		notification event.



- qcom,wf-pattern

  Usage:      required

  Usage:      optional

  Value type: <prop-encoded-array>

  Definition: Specifies the waveform pattern in a byte array that will be

		played for the effect-id. The bit fields of each byte are:
@@ -172,6 +159,19 @@ waveforms/effects: 
  Definition: If specified, the hardware feature of LRA auto resonance detection

		is disabled.



- qcom,wf-line-in-audio

  Usage:      optional

  Value type: <empty>

  Definition: Boolean flag to indicate if the effect is playing the audio signal

		comes into LINE-IN pin. If this is specified, the pattern

		specified in "qcom,wf-pattern" will be ignored.



- qcom,wf-line-in-pwm

  Usage:      optional

  Value type: <empty>

  Definition: Boolean flag to indicate if the effect is playing the PWM signal

		comes into LINE-IN pin. If this is specified, the pattern

		specified in "qcom,wf-pattern" will be ignored.

Example:

  qcom,haptics@c000 {

	compatible = "qcom,haptics";
@@ -200,4 +200,10 @@ Example: 
		qcom,wf-play-rate-us = <6250>;

		qcom,wf-pattern = [7e 7e 7e];

	};



	wf_6 {

		/* RINGTONE_x effect */

		qcom,effect-id = <6>;

		qcom,wf-line-in-audio;

	};

  };