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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-10 23:51:47 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-10 23:51:47 +0300
commit49f13b0921aaef0d5519358fd9fcc237c1c9124a (patch)
treebb8789c9191bc655dc559f540548a8ea0fd0c09c /Documentation
parent09102704c67457c6cdea6c0394c34843484a852c (diff)
parent751ad34fbad74c3ed4a9ede24764b4253d4faa84 (diff)
downloadlinux-49f13b0921aaef0d5519358fd9fcc237c1c9124a.tar.xz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov: - a new driver for the Azoteq IQS269A capacitive touch controller - a new driver for the Cypress CY8CTMA140 touchscreen - updates to Elan and ft5x06 touchscreen drivers - assorted driver fixes - msm-vibrator has been removed as we have a more generic solution * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (28 commits) Input: adi - work around module name confict Input: iqs269a - add missing I2C dependency Input: elants - refactor elants_i2c_execute_command() Input: elants - override touchscreen info with DT properties Input: elants - remove unused axes Input: add support for Azoteq IQS269A dt-bindings: input: Add bindings for Azoteq IQS269A Input: imx_sc_key - use devm_add_action_or_reset() to handle all cleanups Input: remove msm-vibrator driver dt-bindings: Input: remove msm-vibrator Input: elants_i2c - provide an attribute to show calibration count Input: introduce input_mt_report_slot_inactive() dt-bindings: input: touchscreen: elants_i2c: convert to YAML Input: add driver for the Cypress CY8CTMA140 touchscreen dt-bindings: touchscreen: Add CY8CTMA140 bindings Input: edt-ft5x06 - prefer asynchronous probe Input: edt-ft5x06 - improve power management operations Input: edt-ft5x06 - move parameter restore into helper Input: edt-ft5x06 - fix get_default register write access Input: atkbd - receive and use physcode->keycode mapping from FW ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/input/elants_i2c.txt34
-rw-r--r--Documentation/devicetree/bindings/input/iqs269a.yaml581
-rw-r--r--Documentation/devicetree/bindings/input/msm-vibrator.txt36
-rw-r--r--Documentation/devicetree/bindings/input/touchscreen/cypress,cy8ctma140.yaml72
-rw-r--r--Documentation/devicetree/bindings/input/touchscreen/elan,elants_i2c.yaml69
-rw-r--r--Documentation/devicetree/bindings/input/touchscreen/mms114.txt3
6 files changed, 724 insertions, 71 deletions
diff --git a/Documentation/devicetree/bindings/input/elants_i2c.txt b/Documentation/devicetree/bindings/input/elants_i2c.txt
deleted file mode 100644
index 5edac8be0802..000000000000
--- a/Documentation/devicetree/bindings/input/elants_i2c.txt
+++ /dev/null
@@ -1,34 +0,0 @@
-Elantech I2C Touchscreen
-
-Required properties:
-- compatible: must be "elan,ekth3500".
-- reg: I2C address of the chip.
-- interrupts: interrupt to which the chip is connected (see interrupt
- binding[0]).
-
-Optional properties:
-- wakeup-source: touchscreen can be used as a wakeup source.
-- pinctrl-names: should be "default" (see pinctrl binding [1]).
-- pinctrl-0: a phandle pointing to the pin settings for the device (see
- pinctrl binding [1]).
-- reset-gpios: reset gpio the chip is connected to.
-- vcc33-supply: a phandle for the regulator supplying 3.3V power.
-- vccio-supply: a phandle for the regulator supplying IO power.
-
-[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
-[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
-
-Example:
- &i2c1 {
- /* ... */
-
- touchscreen@10 {
- compatible = "elan,ekth3500";
- reg = <0x10>;
- interrupt-parent = <&gpio4>;
- interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>;
- wakeup-source;
- };
-
- /* ... */
- };
diff --git a/Documentation/devicetree/bindings/input/iqs269a.yaml b/Documentation/devicetree/bindings/input/iqs269a.yaml
new file mode 100644
index 000000000000..f0242bb4be81
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/iqs269a.yaml
@@ -0,0 +1,581 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/iqs269a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Azoteq IQS269A Capacitive Touch Controller
+
+maintainers:
+ - Jeff LaBundy <jeff@labundy.com>
+
+description: |
+ The Azoteq IQS269A is an 8-channel capacitive touch controller that features
+ additional Hall-effect and inductive sensing capabilities.
+
+ Link to datasheet: https://www.azoteq.com/
+
+properties:
+ compatible:
+ const: azoteq,iqs269a
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ azoteq,hall-enable:
+ type: boolean
+ description:
+ Enables Hall-effect sensing on channels 6 and 7. In this case, keycodes
+ assigned to channel 6 are ignored and keycodes assigned to channel 7 are
+ interpreted as switch codes. Refer to the datasheet for requirements im-
+ posed on channels 6 and 7 by Hall-effect sensing.
+
+ azoteq,suspend-mode:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [0, 1, 2, 3]
+ default: 0
+ description: |
+ Specifies the power mode during suspend as follows:
+ 0: Automatic (same as normal runtime, i.e. suspend/resume disabled)
+ 1: Low power (all sensing at a reduced reporting rate)
+ 2: Ultra-low power (channel 0 proximity sensing)
+ 3: Halt (no sensing)
+
+ azoteq,clk-div:
+ type: boolean
+ description: Divides the device's core clock by a factor of 4.
+
+ azoteq,ulp-update:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 7
+ default: 3
+ description: Specifies the ultra-low-power mode update rate.
+
+ azoteq,reseed-offset:
+ type: boolean
+ description:
+ Applies an 8-count offset to all long-term averages upon either ATI or
+ reseed events.
+
+ azoteq,filt-str-lp-lta:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [0, 1, 2, 3]
+ default: 0
+ description:
+ Specifies the long-term average filter strength during low-power mode.
+
+ azoteq,filt-str-lp-cnt:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [0, 1, 2, 3]
+ default: 0
+ description:
+ Specifies the raw count filter strength during low-power mode.
+
+ azoteq,filt-str-np-lta:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [0, 1, 2, 3]
+ default: 0
+ description:
+ Specifies the long-term average filter strength during normal-power mode.
+
+ azoteq,filt-str-np-cnt:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [0, 1, 2, 3]
+ default: 0
+ description:
+ Specifies the raw count filter strength during normal-power mode.
+
+ azoteq,rate-np-ms:
+ minimum: 0
+ maximum: 255
+ default: 16
+ description: Specifies the report rate (in ms) during normal-power mode.
+
+ azoteq,rate-lp-ms:
+ minimum: 0
+ maximum: 255
+ default: 160
+ description: Specifies the report rate (in ms) during low-power mode.
+
+ azoteq,rate-ulp-ms:
+ multipleOf: 16
+ minimum: 0
+ maximum: 4080
+ default: 160
+ description: Specifies the report rate (in ms) during ultra-low-power mode.
+
+ azoteq,timeout-pwr-ms:
+ multipleOf: 512
+ minimum: 0
+ maximum: 130560
+ default: 2560
+ description:
+ Specifies the length of time (in ms) to wait for an event during normal-
+ power mode before transitioning to low-power mode.
+
+ azoteq,timeout-lta-ms:
+ multipleOf: 512
+ minimum: 0
+ maximum: 130560
+ default: 32768
+ description:
+ Specifies the length of time (in ms) to wait before resetting the long-
+ term average of all channels. Specify the maximum timeout to disable it
+ altogether.
+
+ azoteq,ati-band-disable:
+ type: boolean
+ description: Disables the ATI band check.
+
+ azoteq,ati-lp-only:
+ type: boolean
+ description: Limits automatic ATI to low-power mode.
+
+ azoteq,ati-band-tighten:
+ type: boolean
+ description: Tightens the ATI band from 1/8 to 1/16 of the desired target.
+
+ azoteq,filt-disable:
+ type: boolean
+ description: Disables all raw count filtering.
+
+ azoteq,gpio3-select:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 7
+ default: 0
+ description:
+ Selects the channel for which the GPIO3 pin represents touch state.
+
+ azoteq,dual-direction:
+ type: boolean
+ description:
+ Specifies that long-term averages are to freeze in the presence of either
+ increasing or decreasing counts, thereby permitting events to be reported
+ in either direction.
+
+ azoteq,tx-freq:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [0, 1, 2, 3]
+ default: 0
+ description: |
+ Specifies the inductive sensing excitation frequency as follows (paren-
+ thesized numbers represent the frequency if 'azoteq,clk-div' is present):
+ 0: 16 MHz (4 MHz)
+ 1: 8 MHz (2 MHz)
+ 2: 4 MHz (1 MHz)
+ 3: 2 MHz (500 kHz)
+
+ azoteq,global-cap-increase:
+ type: boolean
+ description: Increases the global capacitance adder from 0.5 pF to 1.5 pF.
+
+ azoteq,reseed-select:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [0, 1, 2, 3]
+ default: 0
+ description: |
+ Specifies the event(s) that prompt the device to reseed (i.e. reset the
+ long-term average) of an associated channel as follows:
+ 0: None
+ 1: Proximity
+ 2: Proximity or touch
+ 3: Proximity, touch or deep touch
+
+ azoteq,tracking-enable:
+ type: boolean
+ description:
+ Enables all associated channels to track their respective reference
+ channels.
+
+ azoteq,filt-str-slider:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [0, 1, 2, 3]
+ default: 1
+ description: Specifies the slider coordinate filter strength.
+
+patternProperties:
+ "^channel@[0-7]$":
+ type: object
+ description:
+ Represents a single sensing channel. A channel is active if defined and
+ inactive otherwise.
+
+ properties:
+ reg:
+ minimum: 0
+ maximum: 7
+ description: Index of the channel.
+
+ azoteq,reseed-disable:
+ type: boolean
+ description:
+ Prevents the channel from being reseeded if the long-term average
+ timeout (defined in 'azoteq,timeout-lta') expires.
+
+ azoteq,blocking-enable:
+ type: boolean
+ description: Specifies that the channel is a blocking channel.
+
+ azoteq,slider0-select:
+ type: boolean
+ description: Specifies that the channel participates in slider 0.
+
+ azoteq,slider1-select:
+ type: boolean
+ description: Specifies that the channel participates in slider 1.
+
+ azoteq,rx-enable:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32-array
+ - minItems: 1
+ maxItems: 8
+ items:
+ minimum: 0
+ maximum: 7
+ description:
+ Specifies the CRX pin(s) associated with the channel. By default, only
+ the CRX pin corresponding to the channel's index is enabled (e.g. CRX0
+ for channel 0).
+
+ azoteq,tx-enable:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32-array
+ - minItems: 1
+ maxItems: 8
+ items:
+ minimum: 0
+ maximum: 7
+ default: [0, 1, 2, 3, 4, 5, 6, 7]
+ description: Specifies the TX pin(s) associated with the channel.
+
+ azoteq,meas-cap-decrease:
+ type: boolean
+ description:
+ Decreases the internal measurement capacitance from 60 pF to 15 pF.
+
+ azoteq,rx-float-inactive:
+ type: boolean
+ description: Floats any inactive CRX pins instead of grounding them.
+
+ azoteq,local-cap-size:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [0, 1, 2]
+ default: 0
+ description: |
+ Specifies the capacitance to be added to the channel as follows:
+ 0: None
+ 1: Global adder (based on 'azoteq,global-cap-increase')
+ 2: Global adder + 0.5 pF
+
+ azoteq,invert-enable:
+ type: boolean
+ description:
+ Inverts the polarity of the states reported for proximity, touch and
+ deep-touch events relative to their respective thresholds.
+
+ azoteq,proj-bias:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [0, 1, 2, 3]
+ default: 2
+ description: |
+ Specifies the bias current applied during projected-capacitance
+ sensing as follows:
+ 0: 2.5 uA
+ 1: 5 uA
+ 2: 10 uA
+ 3: 20 uA
+
+ azoteq,sense-mode:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [0, 1, 9, 14, 15]
+ default: 0
+ description: |
+ Specifies the channel's sensing mode as follows:
+ 0: Self capacitance
+ 1: Projected capacitance
+ 9: Self or mutual inductance
+ 14: Hall effect
+ 15: Temperature
+
+ azoteq,sense-freq:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [0, 1, 2, 3]
+ default: 1
+ description: |
+ Specifies the channel's sensing frequency as follows (parenthesized
+ numbers represent the frequency if 'azoteq,clk-div' is present):
+ 0: 4 MHz (1 MHz)
+ 1: 2 MHz (500 kHz)
+ 2: 1 MHz (250 kHz)
+ 3: 500 kHz (125 kHz)
+
+ azoteq,static-enable:
+ type: boolean
+ description: Enables the static front-end for the channel.
+
+ azoteq,ati-mode:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [0, 1, 2, 3]
+ default: 3
+ description: |
+ Specifies the channel's ATI mode as follows:
+ 0: Disabled
+ 1: Semi-partial
+ 2: Partial
+ 3: Full
+
+ azoteq,ati-base:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [75, 100, 150, 200]
+ default: 100
+ description: Specifies the channel's ATI base.
+
+ azoteq,ati-target:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - multipleOf: 32
+ minimum: 0
+ maximum: 2016
+ default: 512
+ description: Specifies the channel's ATI target.
+
+ azoteq,assoc-select:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32-array
+ - minItems: 1
+ maxItems: 8
+ items:
+ minimum: 0
+ maximum: 7
+ description:
+ Specifies the associated channels for which the channel serves as a
+ reference channel. By default, no channels are selected.
+
+ azoteq,assoc-weight:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 255
+ default: 0
+ description:
+ Specifies the channel's impact weight if it acts as an associated
+ channel (0 = 0% impact, 255 = 200% impact).
+
+ patternProperties:
+ "^event-prox(-alt)?$":
+ type: object
+ description:
+ Represents a proximity event reported by the channel in response to
+ a decrease in counts. Node names suffixed with '-alt' instead corre-
+ spond to an increase in counts.
+
+ By default, the long-term average tracks an increase in counts such
+ that only events corresponding to a decrease in counts are reported
+ (refer to the datasheet for more information).
+
+ Specify 'azoteq,dual-direction' to freeze the long-term average when
+ the counts increase or decrease such that events of either direction
+ can be reported. Alternatively, specify 'azoteq,invert-enable' to in-
+ vert the polarity of the states reported by the channel.
+
+ Complementary events (e.g. event-touch and event-touch-alt) can both
+ be present and specify different key or switch codes, but not differ-
+ ent thresholds or hysteresis (if applicable).
+
+ properties:
+ azoteq,thresh:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 255
+ default: 10
+ description: Specifies the threshold for the event.
+
+ linux,code:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Numeric key or switch code associated with the event.
+
+ additionalProperties: false
+
+ "^event-touch(-alt)?$":
+ type: object
+ description: Represents a touch event reported by the channel.
+
+ properties:
+ azoteq,thresh:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 255
+ default: 8
+ description: Specifies the threshold for the event.
+
+ azoteq,hyst:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 15
+ default: 4
+ description: Specifies the hysteresis for the event.
+
+ linux,code:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Numeric key or switch code associated with the event.
+
+ additionalProperties: false
+
+ "^event-deep(-alt)?$":
+ type: object
+ description: Represents a deep-touch event reported by the channel.
+
+ properties:
+ azoteq,thresh:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 255
+ default: 26
+ description: Specifies the threshold for the event.
+
+ azoteq,hyst:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 15
+ default: 0
+ description: Specifies the hysteresis for the event.
+
+ linux,code:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Numeric key or switch code associated with the event.
+
+ additionalProperties: false
+
+ required:
+ - reg
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/input/input.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ iqs269a@44 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ compatible = "azoteq,iqs269a";
+ reg = <0x44>;
+ interrupt-parent = <&gpio>;
+ interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
+
+ azoteq,hall-enable;
+ azoteq,suspend-mode = <2>;
+
+ channel@0 {
+ reg = <0x0>;
+
+ event-prox {
+ linux,code = <KEY_POWER>;
+ };
+ };
+
+ channel@1 {
+ reg = <0x1>;
+ azoteq,slider0-select;
+ };
+
+ channel@2 {
+ reg = <0x2>;
+ azoteq,slider0-select;
+ };
+
+ channel@3 {
+ reg = <0x3>;
+ azoteq,slider0-select;
+ };
+
+ channel@4 {
+ reg = <0x4>;
+ azoteq,slider0-select;
+ };
+
+ channel@5 {
+ reg = <0x5>;
+ azoteq,slider0-select;
+ };
+
+ channel@6 {
+ reg = <0x6>;
+ azoteq,invert-enable;
+ azoteq,static-enable;
+ azoteq,reseed-disable;
+ azoteq,rx-enable = <0>;
+ azoteq,sense-freq = <0x0>;
+ azoteq,sense-mode = <0xE>;
+ azoteq,ati-mode = <0x0>;
+ azoteq,ati-base = <200>;
+ azoteq,ati-target = <320>;
+ };
+
+ channel@7 {
+ reg = <0x7>;
+ azoteq,invert-enable;
+ azoteq,static-enable;
+ azoteq,reseed-disable;
+ azoteq,rx-enable = <0>, <6>;
+ azoteq,sense-freq = <0x0>;
+ azoteq,sense-mode = <0xE>;
+ azoteq,ati-mode = <0x3>;
+ azoteq,ati-base = <200>;
+ azoteq,ati-target = <320>;
+
+ event-touch {
+ linux,code = <SW_LID>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/input/msm-vibrator.txt b/Documentation/devicetree/bindings/input/msm-vibrator.txt
deleted file mode 100644
index 8dcf014ef2e5..000000000000
--- a/Documentation/devicetree/bindings/input/msm-vibrator.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-* Device tree bindings for the Qualcomm MSM vibrator
-
-Required properties:
-
- - compatible: Should be one of
- "qcom,msm8226-vibrator"
- "qcom,msm8974-vibrator"
- - reg: the base address and length of the IO memory for the registers.
- - pinctrl-names: set to default.
- - pinctrl-0: phandles pointing to pin configuration nodes. See
- Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
- - clock-names: set to pwm
- - clocks: phandle of the clock. See
- Documentation/devicetree/bindings/clock/clock-bindings.txt
- - enable-gpios: GPIO that enables the vibrator.
-
-Optional properties:
-
- - vcc-supply: phandle to the regulator that provides power to the sensor.
-
-Example from a LG Nexus 5 (hammerhead) phone:
-
-vibrator@fd8c3450 {
- reg = <0xfd8c3450 0x400>;
- compatible = "qcom,msm8974-vibrator";
-
- vcc-supply = <&pm8941_l19>;
-
- clocks = <&mmcc CAMSS_GP1_CLK>;
- clock-names = "pwm";
-
- enable-gpios = <&msmgpio 60 GPIO_ACTIVE_HIGH>;
-
- pinctrl-names = "default";
- pinctrl-0 = <&vibrator_pin>;
-};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/cypress,cy8ctma140.yaml b/Documentation/devicetree/bindings/input/touchscreen/cypress,cy8ctma140.yaml
new file mode 100644
index 000000000000..8c73e5264312
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/cypress,cy8ctma140.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/cypress,cy8ctma140.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cypress CY8CTMA140 series touchscreen controller bindings
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ const: cypress,cy8ctma140
+
+ reg:
+ const: 0x20
+
+ clock-frequency:
+ description: I2C client clock frequency, defined for host
+ minimum: 100000
+ maximum: 400000
+
+ interrupts:
+ maxItems: 1
+
+ vcpin-supply:
+ description: Analog power supply regulator on VCPIN pin
+
+ vdd-supply:
+ description: Digital power supply regulator on VDD pin
+
+ touchscreen-inverted-x: true
+ touchscreen-inverted-y: true
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-swapped-x-y: true
+ touchscreen-max-pressure: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - touchscreen-size-x
+ - touchscreen-size-y
+ - touchscreen-max-pressure
+
+examples:
+- |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ touchscreen@20 {
+ compatible = "cypress,cy8ctma140";
+ reg = <0x20>;
+ touchscreen-size-x = <480>;
+ touchscreen-size-y = <800>;
+ touchscreen-max-pressure = <255>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
+ vdd-supply = <&ab8500_ldo_aux2_reg>;
+ vcpin-supply = <&ab8500_ldo_aux2_reg>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/input/touchscreen/elan,elants_i2c.yaml b/Documentation/devicetree/bindings/input/touchscreen/elan,elants_i2c.yaml
new file mode 100644
index 000000000000..a792d6377b1d
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/elan,elants_i2c.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/input/touchscreen/elan,elants_i2c.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Elantech I2C Touchscreen
+
+maintainers:
+ - David Heidelberg <david@ixit.cz>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ enum:
+ - elan,ektf3624
+ - elan,ekth3500
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ wakeup-source:
+ type: boolean
+ description: touchscreen can be used as a wakeup source.
+
+ reset-gpios:
+ description: reset gpio the chip is connected to.
+
+ vcc33-supply:
+ description: a phandle for the regulator supplying 3.3V power.
+
+ vccio-supply:
+ description: a phandle for the regulator supplying IO power.
+
+ touchscreen-inverted-x: true
+ touchscreen-inverted-y: true
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-swapped-x-y: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touchscreen@10 {
+ compatible = "elan,ekth3500";
+ reg = <0x10>;
+
+ interrupt-parent = <&gpio4>;
+ interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>;
+ wakeup-source;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/input/touchscreen/mms114.txt b/Documentation/devicetree/bindings/input/touchscreen/mms114.txt
index 2cd954051d29..707234cfd7e6 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/mms114.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/mms114.txt
@@ -1,9 +1,10 @@
-* MELFAS MMS114/MMS152 touchscreen controller
+* MELFAS MMS114/MMS152/MMS345L touchscreen controller
Required properties:
- compatible: should be one of:
- "melfas,mms114"
- "melfas,mms152"
+ - "melfas,mms345l"
- reg: I2C address of the chip
- interrupts: interrupt to which the chip is connected
- touchscreen-size-x: See [1]