1 Dialog Semiconductor DA7280 Haptics bindings
2
3 Required properties:
4 - compatible: Should be "dlg,da7280".
5 - reg: Specifies the I2C slave address.
6
7 - interrupt-parent : Specifies the phandle of
8 which the IRQs from DA7280 are delivered to.
9
10 - dlg,actuator-type: Set Actuator type. it sho
11 "LRA" - Linear Resonance Actuator type.
12 "ERM-bar" - Bar type Eccentric Rotating Mass
13 "ERM-coin" - Coin type Eccentric Rotating Ma
14
15 - dlg,const-op-mode: Haptic operation mode for
16 Possible values:
17 1 - Direct register override(DRO) mode
18 2 - PWM data source mode controlled by
19 - dlg,periodic-op-mode: Haptic operation mode
20 Possible values:
21 1 - Register triggered waveform memory
22 assigned to the PS_SEQ_ID played a
23 2 - Edge triggered waveform memory(ETW
24 control are required to enable/dis
25 device enabled by sending magnitud
26 the pattern is assigned to the GPI
27 The default value is 1 for both of the
28 For more details, please see the datas
29
30 - dlg,nom-microvolt: Nominal actuator voltage
31 Valid values: 0 - 6000000.
32 - dlg,abs-max-microvolt: Absolute actuator max
33 Valid values: 0 - 6000000.
34 - dlg,imax-microamp: Actuator max current rati
35 Valid values: 0 - 252000.
36 Default: 130000.
37 - dlg,impd-micro-ohms: the impedance of the ac
38 Valid values: 0 - 1500000000.
39
40 Optional properties:
41 - pwms : phandle to the physical PWM(Pulse Wid
42 PWM properties should be named "pwms". And n
43 for each pwm device.
44 (See Documentation/devicetree/bindings/pwm/p
45 for further information relating to pwm pro
46
47 - dlg,ps-seq-id: the PS_SEQ_ID(pattern ID in w
48 to play back when RTWM-MODE is enabled.
49 Valid range: 0 - 15.
50 - dlg,ps-seq-loop: the PS_SEQ_LOOP, Number of
51 pointed to by PS_SEQ_ID or GPI(N)_SEQUENCE_I
52 Valid range: 0 - 15.
53 - dlg,gpiN-seq-id: the GPI(N)_SEQUENCE_ID, pat
54 when gpi0 is triggered, 'N' must be 0 - 2.
55 Valid range: 0 - 15.
56 - dlg,gpiN-mode: the pattern mode which can se
57 "Single-pattern" or "Multi-pattern", 'N' mus
58 - dlg,gpiN-polarity: gpiN polarity which can b
59 "Rising-edge", "Falling-edge" and "Both-edge
60 'N' must be 0 - 2
61 Haptic will work by this edge option in case
62
63 - dlg,resonant-freq-hz: use in case of LRA.
64 the frequency range: 50 - 300.
65 Default: 205.
66
67 - dlg,bemf-sens-enable: Enable for internal lo
68 - dlg,freq-track-enable: Enable for resonant f
69 - dlg,acc-enable: Enable for active accelerati
70 - dlg,rapid-stop-enable: Enable for rapid stop
71 - dlg,amp-pid-enable: Enable for the amplitude
72 - dlg,mem-array: Customized waveform memory(pa
73 the device during initialization. This is an
74
75 For further information, see device datasheet.
76
77 ======
78
79 Example:
80
81 haptics: da7280-haptics@4a {
82 compatible = "dlg,da7280";
83 reg = <0x4a>;
84 interrupt-parent = <&gpio6>;
85 interrupts = <11 IRQ_TYPE_LEVE
86 dlg,actuator-type = "LRA";
87 dlg,dlg,const-op-mode = <1>;
88 dlg,dlg,periodic-op-mode = <1>
89 dlg,nom-microvolt = <2000000>;
90 dlg,abs-max-microvolt = <20000
91 dlg,imax-microamp = <170000>;
92 dlg,resonant-freq-hz = <180>;
93 dlg,impd-micro-ohms = <1050000
94 dlg,freq-track-enable;
95 dlg,rapid-stop-enable;
96 dlg,mem-array = <
97 0x00 0x00 0x00 0x00 0x00 0x0
98 0x00 0x00 0x00 0x00 0x00 0x0
99 0x00 0x00 0x00 0x00 0x00 0x0
100 0x00 0x00 0x00 0x00 0x00 0x0
101 0x00 0x00 0x00 0x00 0x00 0x0
102 0x00 0x00 0x00 0x00 0x00 0x0
103 0x00 0x00 0x00 0x00 0x00 0x0
104 0x00 0x00 0x00 0x00 0x00 0x0
105 0x00 0x00 0x00 0x00 0x00 0x0
106 0x00 0x00 0x00 0x00 0x00 0x0
107 >;
108 };
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