Re: [PATCH V4 2/3] dt-bindings: input: Add document bindings for DA7280
From: Pavel Machek <hidden>
Date: 2018-08-26 06:52:04
Also in:
linux-input, lkml
Hi!
quoted hunk ↗ jump to hunk
+++ b/Documentation/devicetree/bindings/input/dlg,da7280.txt@@ -0,0 +1,101 @@ +Dialog Semiconductor DA7280 Haptics bindings + +Required properties: +- compatible: Should be "dlg,da7280". +- reg: Specifies the I2C slave address. + +- interrupt-parent : Specifies the phandle of the interrupt controller to + which the IRQs from DA7280 are delivered to. + +- dlg,vib-mode: + "LRA-MODE" - Linear Resonance Actuator mode. + "ERM-BAR" - Bar type Eccentric Rotating Mass mode. + "ERM-COIN" - Coin type Eccentric Rotating Mass mode.
So this is some kind of "vibration motor" on steroids)?
+- dlg,op-mode: Haptic operation mode. + Possible values: + 1 - Direct register override mode triggered by i2c(default), + 2 - PWM data source mode setting duty to 0 - 0xffff(0% - 100%),
Space after 0xffff?
+ 3 - Register triggered waveform memory mode, the pattern assigned + to the PS_SEQ_ID played as much times as PS_SEQ_LOOP, + 4 - Edge triggered waveform memory mode, external GPI(N) condtrol
"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
"below."
+- dlg,imax-microamp: Actuator max current rating. + Valid values: 0 - 252000. + Default: 130000. +- dlg,impd-micro-ohms: the impedance of the actuator in micro ohm,
"ohms"
+ as read from its datasheet.
"as read" does not sound english.
+- dlg,mem-array: use in case that memory registers should be updated, + Please fill the whole buffers(100 bytes) to avoid any error in driver. + For example, + dlg,mem-array = < + 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A + ... + 0x71 0x72 0x73 0x74 0x75 0x76 0x77 0x78 0x79 0x7A + 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 + 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 + >;
I'd not understand what this is from this description. (And I'd put example below... in the exampls section).
+For further information, see device datasheet.
+
+======
+
+Example:
+
+ haptics: da7280-haptics@4a {
+ compatible = "dlg,da7280";
+ reg = <0x4a>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+ dlg,vib-mode = "LRA-MODE";
+ dlg,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;
+ };-- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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