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authorLinus Torvalds <torvalds@linux-foundation.org>2020-10-24 02:16:31 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-24 02:16:31 +0300
commitbd7e8c996f5aba542f416ee6d19e91fd3668674f (patch)
treed75c0094e0e2f82d18e02fbb7e5362984b36863f /Documentation
parent40a03b750bb3ded71a0f21a0b7dfbf3b24068dcb (diff)
parentbb0bc0cfeabc0d6865865e8d3a601bea6711f951 (diff)
downloadlinux-bd7e8c996f5aba542f416ee6d19e91fd3668674f.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 ADC driven joysticks - a new Zintix touchscreen driver - enhancements to Intel SoC button array driver - support for F3A "function" in Synaptics RMI4 driver - assorted driver fixups * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (29 commits) Input: Add MAINTAINERS entry for SiS i2c touch input driver Input: evdev - per-client waitgroups Input: synaptics - enable InterTouch for ThinkPad T14 Gen 1 Input: synaptics - enable InterTouch for ThinkPad P1/X1E gen 2 Input: synaptics-rmi4 - support bootloader v8 in f34v7 Input: synaptics-rmi4 - add support for F3A Input: synaptics-rmi4 - rename f30_data to gpio_data Input: add zinitix touchscreen driver dt-bindings: input/touchscreen: add bindings for zinitix Input: joystick - add ADC attached joystick driver. dt-bindings: input: Add docs for ADC driven joystick Input: sun4i-ps2 - fix handling of platform_get_irq() error Input: twl4030_keypad - fix handling of platform_get_irq() error Input: omap4-keypad - fix handling of platform_get_irq() error Input: ep93xx_keypad - fix handling of platform_get_irq() error Input: stmfts - fix a & vs && typo Input: imx6ul_tsc - unify open/close and PM paths Input: imx6ul_tsc - clean up some errors in imx6ul_tsc_resume() Input: elants_i2c - fix typo for an attribute to show calibration count Input: elants_i2c - report resolution of ABS_MT_TOUCH_MAJOR by FW information. ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/input/adc-joystick.yaml121
-rw-r--r--Documentation/devicetree/bindings/input/touchscreen/zinitix.txt40
-rw-r--r--Documentation/devicetree/bindings/vendor-prefixes.yaml2
3 files changed, 163 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/adc-joystick.yaml b/Documentation/devicetree/bindings/input/adc-joystick.yaml
new file mode 100644
index 000000000000..054406bbd22b
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/adc-joystick.yaml
@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2019-2020 Artur Rojek
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/input/adc-joystick.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: ADC attached joystick
+
+maintainers:
+ - Artur Rojek <contact@artur-rojek.eu>
+
+description: >
+ Bindings for joystick devices connected to ADC controllers supporting
+ the Industrial I/O subsystem.
+
+properties:
+ compatible:
+ const: adc-joystick
+
+ io-channels:
+ minItems: 1
+ maxItems: 1024
+ description: >
+ List of phandle and IIO specifier pairs.
+ Each pair defines one ADC channel to which a joystick axis is connected.
+ See Documentation/devicetree/bindings/iio/iio-bindings.txt for details.
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+required:
+ - compatible
+ - io-channels
+ - '#address-cells'
+ - '#size-cells'
+
+additionalProperties: false
+
+patternProperties:
+ "^axis@[0-9a-f]+$":
+ type: object
+ description: >
+ Represents a joystick axis bound to the given ADC channel.
+ For each entry in the io-channels list, one axis subnode with a matching
+ reg property must be specified.
+
+ properties:
+ reg:
+ minimum: 0
+ maximum: 1023
+ description: Index of an io-channels list entry bound to this axis.
+
+ linux,code:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: EV_ABS specific event code generated by the axis.
+
+ abs-range:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32-array
+ - items:
+ - description: minimum value
+ - description: maximum value
+ description: >
+ Minimum and maximum values produced by the axis.
+ For an ABS_X axis this will be the left-most and right-most
+ inclination of the joystick. If min > max, it is left to userspace to
+ treat the axis as inverted.
+ This property is interpreted as two signed 32 bit values.
+
+ abs-fuzz:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: >
+ Amount of noise in the input value.
+ Omitting this property indicates the axis is precise.
+
+ abs-flat:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: >
+ Axial "deadzone", or area around the center position, where the axis
+ is considered to be at rest.
+ Omitting this property indicates the axis always returns to exactly
+ the center position.
+
+ required:
+ - reg
+ - linux,code
+ - abs-range
+
+ additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/iio/adc/ingenic,adc.h>
+ #include <dt-bindings/input/input.h>
+
+ joystick: adc-joystick {
+ compatible = "adc-joystick";
+ io-channels = <&adc INGENIC_ADC_TOUCH_XP>,
+ <&adc INGENIC_ADC_TOUCH_YP>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ axis@0 {
+ reg = <0>;
+ linux,code = <ABS_X>;
+ abs-range = <3300 0>;
+ abs-fuzz = <4>;
+ abs-flat = <200>;
+ };
+ axis@1 {
+ reg = <1>;
+ linux,code = <ABS_Y>;
+ abs-range = <0 3300>;
+ abs-fuzz = <4>;
+ abs-flat = <200>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/input/touchscreen/zinitix.txt b/Documentation/devicetree/bindings/input/touchscreen/zinitix.txt
new file mode 100644
index 000000000000..446efb9f5f55
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/zinitix.txt
@@ -0,0 +1,40 @@
+Device tree bindings for Zinitx BT541 touchscreen controller
+
+Required properties:
+
+ - compatible : Should be "zinitix,bt541"
+ - reg : I2C address of the chip. Should be 0x20
+ - interrupts : Interrupt to which the chip is connected
+
+Optional properties:
+
+ - vdd-supply : Analog power supply regulator on VCCA pin
+ - vddo-supply : Digital power supply regulator on VDD pin
+ - zinitix,mode : Mode of reporting touch points. Some modes may not work
+ with a particular ts firmware for unknown reasons. Available
+ modes are 1 and 2. Mode 2 is the default and preferred.
+
+The touchscreen-* properties are documented in touchscreen.txt in this
+directory.
+
+Example:
+
+ i2c@00000000 {
+ /* ... */
+
+ bt541@20 {
+ compatible = "zinitix,bt541";
+ reg = <0x20>;
+ interrupt-parent = <&msmgpio>;
+ interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&tsp_default>;
+ vdd-supply = <&reg_vdd_tsp>;
+ vddo-supply = <&pm8916_l6>;
+ touchscreen-size-x = <540>;
+ touchscreen-size-y = <960>;
+ zinitix,mode = <2>;
+ };
+
+ /* ... */
+ };
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index ad38504f4358..07bdfdd7b31c 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -1222,6 +1222,8 @@ patternProperties:
description: Shenzhen Zidoo Technology Co., Ltd.
"^zii,.*":
description: Zodiac Inflight Innovations
+ "^zinitix,.*":
+ description: Zinitix Co., Ltd
"^zte,.*":
description: ZTE Corp.
"^zyxel,.*":