Lines Matching +full:2 +full:- +full:channel
1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jeff LaBundy <jeff@labundy.com>
13 The Azoteq IQS626A is a 14-channel capacitive touch controller that features
14 additional Hall-effect and inductive sensing capabilities.
19 - $ref: touchscreen/touchscreen.yaml#
31 "#address-cells":
34 "#size-cells":
37 azoteq,suspend-mode:
39 enum: [0, 1, 2, 3]
45 2: Ultra-low power (ULP channel proximity sensing)
48 azoteq,clk-div:
52 azoteq,ulp-enable:
55 Permits the device to automatically enter ultra-low-power mode from low-
58 azoteq,ulp-update:
60 enum: [0, 1, 2, 3, 4, 5, 6, 7]
64 updated during ultra-low-power mode as follows:
67 2: 28
74 azoteq,ati-band-disable:
78 azoteq,ati-lp-only:
80 description: Limits automatic ATI to low-power mode.
82 azoteq,gpio3-select:
84 enum: [0, 1, 2, 3, 4, 5, 6, 7]
87 Selects the channel or group of channels for which the GPIO3 pin
90 1: ULP channel
91 2: Trackpad
93 4: Generic channel 0
94 5: Generic channel 1
95 6: Generic channel 2
96 7: Hall channel
98 azoteq,reseed-select:
100 enum: [0, 1, 2, 3]
104 long-term average) of an associated channel as follows:
107 2: Proximity or touch
110 azoteq,thresh-extend:
112 description: Multiplies all touch and deep-touch thresholds by 4.
114 azoteq,tracking-enable:
120 azoteq,reseed-offset:
123 Applies an 8-count offset to all long-term averages upon either ATI or
126 azoteq,rate-np-ms:
130 description: Specifies the report rate (in ms) during normal-power mode.
132 azoteq,rate-lp-ms:
136 description: Specifies the report rate (in ms) during low-power mode.
138 azoteq,rate-ulp-ms:
143 description: Specifies the report rate (in ms) during ultra-low-power mode.
145 azoteq,timeout-pwr-ms:
152 from normal-power mode to low-power mode, or (if 'azoteq,ulp-enable' is
153 present) from low-power mode to ultra-low-power mode.
155 azoteq,timeout-lta-ms:
161 Specifies the length of time (in ms) to wait before resetting the long-
165 touchscreen-inverted-x: true
166 touchscreen-inverted-y: true
167 touchscreen-swapped-x-y: true
170 "^ulp-0|generic-[0-2]|hall$":
173 Represents a single sensing channel. A channel is active if defined and
177 azoteq,ati-exclude:
180 Prevents the channel from participating in an ATI event that is
183 azoteq,reseed-disable:
186 Prevents the channel from being reseeded if the long-term average
187 timeout (defined in 'azoteq,timeout-lta') expires.
189 azoteq,meas-cap-decrease:
194 azoteq,rx-inactive:
196 enum: [0, 1, 2]
202 2: VREG (generic channels only)
207 Enables linearization of the channel's counts (generic and Hall
208 channels) or inverts the polarity of the channel's proximity or
209 touch states (ULP channel).
211 azoteq,dual-direction:
214 Specifies that the channel's long-term average is to freeze in the
215 presence of either increasing or decreasing counts, thereby permit-
218 azoteq,filt-disable:
220 description: Disables raw count filtering for the channel.
222 azoteq,ati-mode:
224 enum: [0, 1, 2, 3]
226 Specifies the channel's ATI mode as follows:
228 1: Semi-partial
229 2: Partial
232 The default value is a function of the channel and the device's reset
236 azoteq,ati-base:
240 Specifies the channel's ATI base. The default value is a function
241 of the channel and the device's RUI.
243 azoteq,ati-target:
249 Specifies the channel's ATI target. The default value is a function
250 of the channel and the device's RUI.
252 azoteq,cct-increase:
258 Specifies the degree to which the channel's charge cycle time is to
260 limited to 4 in the case of the ULP channel, and the property is un-
261 available entirely in the case of the Hall channel.
263 azoteq,proj-bias:
265 enum: [0, 1, 2, 3]
268 Specifies the bias current applied during projected-capacitance
272 2: 10 uA
275 This property is unavailable in the case of the Hall channel.
277 azoteq,sense-freq:
279 enum: [0, 1, 2, 3]
281 Specifies the channel's sensing frequency as follows (parenthesized
282 numbers represent the frequency if 'azoteq,clk-div' is present):
284 1: 2 MHz (500 kHz)
285 2: 1 MHz (250 kHz)
288 This property is unavailable in the case of the Hall channel. The
289 default value is a function of the channel and the device's RUI.
291 azoteq,ati-band-tighten:
297 azoteq,proj-enable:
299 description: Enables projected-capacitance sensing (ULP channel only).
301 azoteq,filt-str-np-cnt:
303 enum: [0, 1, 2, 3]
306 Specifies the raw count filter strength during normal-power mode (ULP
309 azoteq,filt-str-lp-cnt:
311 enum: [0, 1, 2, 3]
314 Specifies the raw count filter strength during low-power mode (ULP and
317 azoteq,filt-str-np-lta:
319 enum: [0, 1, 2, 3]
322 Specifies the long-term average filter strength during normal-power
325 azoteq,filt-str-lp-lta:
327 enum: [0, 1, 2, 3]
330 Specifies the long-term average filter strength during low-power mode
333 azoteq,rx-enable:
334 $ref: /schemas/types.yaml#/definitions/uint32-array
341 Specifies the CRX pin(s) associated with the channel.
343 This property is unavailable in the case of the Hall channel. The
344 default value is a function of the channel and the device's RUI.
346 azoteq,tx-enable:
347 $ref: /schemas/types.yaml#/definitions/uint32-array
354 Specifies the TX pin(s) associated with the channel.
356 This property is unavailable in the case of the Hall channel. The
357 default value is a function of the channel and the device's RUI.
359 azoteq,local-cap-size:
361 enum: [0, 1, 2, 3, 4]
364 Specifies the capacitance to be added to the channel as follows:
367 2: 1.0 pF
373 azoteq,sense-mode:
377 Specifies the channel's sensing mode as follows:
387 The default value is a function of the channel and the device's RUI.
389 azoteq,tx-freq:
391 enum: [0, 1, 2, 3]
395 (parenthesized numbers represent the frequency if 'azoteq,clk-div'
398 1: 8 MHz (2 MHz)
399 2: 4 MHz (1 MHz)
400 3: 2 MHz (500 kHz)
404 azoteq,invert-enable:
408 deep-touch events relative to their respective thresholds (generic
411 azoteq,comp-disable:
414 Disables compensation for the channel (generic channels only).
416 azoteq,static-enable:
419 Enables the static front-end for the channel (generic channels only).
421 azoteq,assoc-select:
422 $ref: /schemas/types.yaml#/definitions/string-array
427 - ulp-0
428 - trackpad-3x2
429 - trackpad-3x3
430 - generic-0
431 - generic-1
432 - generic-2
433 - hall
435 Specifies the associated channels for which the channel serves as a
436 reference channel. By default, no channels are selected. This prop-
439 azoteq,assoc-weight:
445 Specifies the channel's impact weight if it acts as an associated
446 channel (0 = 0% impact, 255 = 200% impact). This property is only
450 "^event-(prox|touch|deep)(-alt)?$":
454 Represents a proximity, touch or deep-touch event reported by the
455 channel in response to a decrease in counts. Node names suffixed with
456 '-alt' instead correspond to an increase in counts.
458 By default, the long-term average tracks an increase in counts such
462 Specify 'azoteq,dual-direction' to freeze the long-term average when
464 can be reported. Alternatively, specify 'azoteq,invert-enable' to in-
465 vert the polarity of the states reported by the channel.
467 Complementary events (e.g. event-touch and event-touch-alt) can both
468 be present and specify different key or switch codes, but not differ-
471 Proximity events are unavailable in the case of the Hall channel, and
472 deep-touch events are only available for the generic channels. Unless
473 otherwise specified, default values are a function of the channel and
488 Specifies the hysteresis for the event (touch and deep-touch
493 linux,input-type:
497 a switch (5). By default, Hall-channel events are interpreted as
503 azoteq,assoc-weight: ["azoteq,assoc-select"]
507 "^trackpad-3x[2-3]$":
515 azoteq,ati-exclude:
521 azoteq,reseed-disable:
524 Prevents the trackpad channels from being reseeded if the long-term
525 average timeout (defined in 'azoteq,timeout-lta') expires.
527 azoteq,meas-cap-decrease:
532 azoteq,rx-inactive:
545 azoteq,dual-direction:
548 Specifies that the trackpad's long-term averages are to freeze in
552 azoteq,filt-disable:
556 azoteq,ati-mode:
558 enum: [0, 1, 2, 3]
563 1: Semi-partial
564 2: Partial
567 azoteq,ati-base:
568 $ref: /schemas/types.yaml#/definitions/uint32-array
575 description: Specifies each individual trackpad channel's ATI base.
577 azoteq,ati-target:
585 azoteq,cct-increase:
594 azoteq,proj-bias:
596 enum: [0, 1, 2, 3]
599 Specifies the bias current applied during projected-capacitance
603 2: 10 uA
606 azoteq,sense-freq:
608 enum: [0, 1, 2, 3]
612 numbers represent the frequency if 'azoteq,clk-div' is present):
614 1: 2 MHz (500 kHz)
615 2: 1 MHz (250 kHz)
618 azoteq,ati-band-tighten:
624 $ref: /schemas/types.yaml#/definitions/uint32-array
632 Specifies each individual trackpad channel's touch threshold.
641 azoteq,lta-update:
643 enum: [0, 1, 2, 3, 4, 5, 6, 7]
646 Specifies the update rate of the trackpad's long-term average during
647 ultra-low-power mode as follows:
648 0: 2
650 2: 8
657 azoteq,filt-str-trackpad:
659 enum: [0, 1, 2, 3]
663 azoteq,filt-str-np-cnt:
665 enum: [0, 1, 2, 3]
668 Specifies the raw count filter strength during normal-power mode.
670 azoteq,filt-str-lp-cnt:
672 enum: [0, 1, 2, 3]
675 Specifies the raw count filter strength during low-power mode.
685 2: Positive flick or swipe in Y direction
690 azoteq,gesture-swipe:
696 azoteq,timeout-tap-ms:
705 azoteq,timeout-swipe-ms:
714 azoteq,thresh-swipe:
724 azoteq,gesture-swipe: ["linux,keycodes"]
725 azoteq,timeout-tap-ms: ["linux,keycodes"]
726 azoteq,timeout-swipe-ms: ["linux,keycodes"]
727 azoteq,thresh-swipe: ["linux,keycodes"]
732 - compatible
733 - reg
734 - interrupts
735 - "#address-cells"
736 - "#size-cells"
741 - |
742 #include <dt-bindings/input/input.h>
743 #include <dt-bindings/interrupt-controller/irq.h>
746 #address-cells = <1>;
747 #size-cells = <0>;
750 #address-cells = <1>;
751 #size-cells = <0>;
755 interrupt-parent = <&gpio>;
758 azoteq,rate-np-ms = <16>;
759 azoteq,rate-lp-ms = <160>;
761 azoteq,timeout-pwr-ms = <2560>;
762 azoteq,timeout-lta-ms = <32768>;
764 ulp-0 {
765 azoteq,meas-cap-decrease;
767 azoteq,ati-base = <75>;
768 azoteq,ati-target = <1024>;
770 azoteq,rx-enable = <2>, <3>, <4>,
773 event-prox {
778 trackpad-3x3 {
779 azoteq,filt-str-np-cnt = <1>;
780 azoteq,filt-str-lp-cnt = <1>;
787 azoteq,ati-mode = <3>;
788 azoteq,ati-base = <195>, <195>, <195>,
791 azoteq,ati-target = <512>;
793 azoteq,proj-bias = <1>;
794 azoteq,sense-freq = <2>;
803 azoteq,gesture-swipe;
804 azoteq,timeout-swipe-ms = <800>;
805 azoteq,timeout-tap-ms = <400>;
806 azoteq,thresh-swipe = <40>;
811 * the temperature-tracking channel leveraged
819 generic-2 {
820 azoteq,reseed-disable;
821 azoteq,meas-cap-decrease;
822 azoteq,dual-direction;
823 azoteq,comp-disable;
824 azoteq,static-enable;
828 azoteq,reseed-disable;
829 azoteq,meas-cap-decrease;
831 event-touch {