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Mon, 6 Jan 2020 00:48:00 +0000 Received: from localhost.localdomain (136.49.227.119) by SN4PR0701CA0020.namprd07.prod.outlook.com (2603:10b6:803:28::30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.2602.13 via Frontend Transport; Mon, 6 Jan 2020 00:47:59 +0000 From: Jeff LaBundy To: "lee.jones@linaro.org" , "dmitry.torokhov@gmail.com" , "thierry.reding@gmail.com" , "jic23@kernel.org" , "devicetree@vger.kernel.org" CC: "linux-input@vger.kernel.org" , "u.kleine-koenig@pengutronix.de" , "linux-pwm@vger.kernel.org" , "knaack.h@gmx.de" , "lars@metafoo.de" , "pmeerw@pmeerw.net" , "linux-iio@vger.kernel.org" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , Jeff LaBundy Subject: [PATCH v3 1/7] dt-bindings: Add bindings for Azoteq IQS620A/621/622/624/625 Thread-Topic: [PATCH v3 1/7] dt-bindings: Add bindings for Azoteq IQS620A/621/622/624/625 Thread-Index: AQHVxCrx9mZdEz3euEisil4Ehb2Abw== Date: Mon, 6 Jan 2020 00:48:00 +0000 Message-ID: <1578271620-2159-2-git-send-email-jeff@labundy.com> References: <1578271620-2159-1-git-send-email-jeff@labundy.com> In-Reply-To: <1578271620-2159-1-git-send-email-jeff@labundy.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: SN4PR0701CA0020.namprd07.prod.outlook.com (2603:10b6:803:28::30) To SN6PR08MB5053.namprd08.prod.outlook.com (2603:10b6:805:78::25) authentication-results: spf=none (sender IP is ) smtp.mailfrom=jeff@labundy.com; 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x-microsoft-antispam-message-info: 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 MIME-Version: 1.0 X-OriginatorOrg: labundy.com X-MS-Exchange-CrossTenant-Network-Message-Id: b1f9e005-d2c1-4c74-8dcc-08d792421416 X-MS-Exchange-CrossTenant-originalarrivaltime: 06 Jan 2020 00:48:00.1002 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 00b69d09-acab-4585-aca7-8fb7c6323e6f X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 7Atw29+0CB5RoKPy+FTTwkzIOfpUVTnY0NLjrOmlpXtw/tHhZ3tGCmyeVjQd9WE3/0AI2wLjVS4D7HyODlwnJw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR08MB4175 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org This patch adds device tree bindings for the Azoteq IQS620A, IQS621, IQS622, IQS624 and IQS625 multi-function sensors. A total of three bindings are presented (one MFD and two child nodes); they are submitted as a single patch because the child node bindings have no meaning in the absence of the MFD binding. Signed-off-by: Jeff LaBundy Reviewed-by: Rob Herring --- Changes in v3: - Specified 'additionalProperties: false' within the parent MFD node and all child nodes ("keys", "hall-switch-north/south" and "pwm") - Defined the "hall-switch-north/south" child nodes unconditionally and then inverted the subsequent if/then to filter them from devices for which that functionality is unavailable - Added Reviewed-by trailer Changes in v2: - Removed "prox" child node and moved "keys" and "pwm" child nodes to their own bindings - Replaced linux,fw-file property with more common firmware-name property - Converted all bindings to YAML .../devicetree/bindings/input/iqs62x-keys.yaml | 132 +++++++++++++++ Documentation/devicetree/bindings/mfd/iqs62x.yaml | 179 +++++++++++++++++++++ .../devicetree/bindings/pwm/iqs620a-pwm.yaml | 32 ++++ 3 files changed, 343 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/iqs62x-keys.yaml create mode 100644 Documentation/devicetree/bindings/mfd/iqs62x.yaml create mode 100644 Documentation/devicetree/bindings/pwm/iqs620a-pwm.yaml -- 2.7.4 diff --git a/Documentation/devicetree/bindings/input/iqs62x-keys.yaml b/Documentation/devicetree/bindings/input/iqs62x-keys.yaml new file mode 100644 index 0000000..5625c22 --- /dev/null +++ b/Documentation/devicetree/bindings/input/iqs62x-keys.yaml @@ -0,0 +1,132 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/input/iqs62x-keys.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Azoteq IQS620A/621/622/624/625 Keys and Switches + +maintainers: + - Jeff LaBundy + +description: | + The Azoteq IQS620A, IQS621, IQS622, IQS624 and IQS625 multi-function sensors + feature a variety of self-capacitive, mutual-inductive and Hall-effect sens- + ing capabilities that can facilitate a variety of contactless key and switch + applications. + + These functions are collectively represented by a "keys" child node from the + parent MFD driver. See Documentation/devicetree/bindings/mfd/iqs62x.yaml for + further details and examples. Sensor hardware configuration (self-capacitive + vs. mutual-inductive, etc.) is selected based on the device's firmware. + +properties: + compatible: + enum: + - azoteq,iqs620a-keys + - azoteq,iqs621-keys + - azoteq,iqs622-keys + - azoteq,iqs624-keys + - azoteq,iqs625-keys + + linux,keycodes: + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32-array + - minItems: 1 + maxItems: 16 + description: | + Specifies the numeric keycodes associated with each available touch or + proximity event according to the following table. An 'x' indicates the + event is supported for a given device. Specify 0 for unused events. + + ------------------------------------------------------------------------- + | # | Event | IQS620A | IQS621 | IQS622 | IQS624 | IQS625 | + ------------------------------------------------------------------------- + | 0 | CH0 Touch | x | x | x | x | x | + | | Antenna 1 Touch* | x | | | | | + ------------------------------------------------------------------------- + | 1 | CH0 Proximity | x | x | x | x | x | + | | Antenna 1 Prox.* | x | | | | | + ------------------------------------------------------------------------- + | 2 | CH1 Touch | x | x | x | x | x | + | | Ant. 1 Deep Touch* | x | | | | | + ------------------------------------------------------------------------- + | 3 | CH1 Proximity | x | x | x | x | x | + ------------------------------------------------------------------------- + | 4 | CH2 Touch | x | | | | | + ------------------------------------------------------------------------- + | 5 | CH2 Proximity | x | | | | | + | | Antenna 2 Prox.* | x | | | | | + ------------------------------------------------------------------------- + | 6 | Metal (+) Touch** | x | x | | | | + | | Ant. 2 Deep Touch* | x | | | | | + ------------------------------------------------------------------------- + | 7 | Metal (+) Prox.** | x | x | | | | + | | Antenna 2 Touch* | x | | | | | + ------------------------------------------------------------------------- + | 8 | Metal (-) Touch** | x | x | | | | + ------------------------------------------------------------------------- + | 9 | Metal (-) Prox.** | x | x | | | | + ------------------------------------------------------------------------- + | 10 | SAR Active*** | x | | x | | | + ------------------------------------------------------------------------- + | 11 | SAR Quick Rel.*** | x | | x | | | + ------------------------------------------------------------------------- + | 12 | SAR Movement*** | x | | x | | | + ------------------------------------------------------------------------- + | 13 | SAR Filter Halt*** | x | | x | | | + ------------------------------------------------------------------------- + | 14 | Wheel Up | | | | x | | + ------------------------------------------------------------------------- + | 15 | Wheel Down | | | | x | | + ------------------------------------------------------------------------- + * Two-channel SAR. Replaces CH0-2 plus metal touch and proximity events + if enabled via firmware. + ** "+" and "-" refer to the polarity of a channel's delta (LTA - counts), + where "LTA" is defined as the channel's long-term average. + *** One-channel SAR. Replaces CH0-2 touch and proximity events if enabled + via firmware. + +patternProperties: + "^hall-switch-(north|south)$": + type: object + description: + Represents north/south-field Hall-effect sensor touch or proximity + events. Note that north/south-field orientation is reversed on the + IQS620AXzCSR device due to its flip-chip package. + + properties: + linux,code: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Numeric switch code associated with the event. + + azoteq,use-prox: + $ref: /schemas/types.yaml#/definitions/flag + description: + If present, specifies that Hall-effect sensor reporting should + use the device's wide-range proximity threshold instead of its + close-range touch threshold (default). + + required: + - linux,code + + additionalProperties: false + +if: + properties: + compatible: + contains: + enum: + - azoteq,iqs624-keys + - azoteq,iqs625-keys +then: + patternProperties: + "^hall-switch-(north|south)$": false + +required: + - compatible + - linux,keycodes + +additionalProperties: false + +... diff --git a/Documentation/devicetree/bindings/mfd/iqs62x.yaml b/Documentation/devicetree/bindings/mfd/iqs62x.yaml new file mode 100644 index 0000000..46b7272 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/iqs62x.yaml @@ -0,0 +1,179 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/iqs62x.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Azoteq IQS620A/621/622/624/625 Multi-Function Sensors + +maintainers: + - Jeff LaBundy + +description: | + The Azoteq IQS620A, IQS621, IQS622, IQS624 and IQS625 multi-function sensors + integrate multiple sensing technologies in a single package. + + Link to data sheets: https://www.azoteq.com/ + +properties: + compatible: + enum: + - azoteq,iqs620a + - azoteq,iqs621 + - azoteq,iqs622 + - azoteq,iqs624 + - azoteq,iqs625 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + firmware-name: + $ref: /schemas/types.yaml#/definitions/string + description: + Specifies the name of the calibration and configuration file selected by + the driver. If this property is omitted, the name is chosen based on the + device name with ".bin" as the extension (e.g. iqs620a.bin for IQS620A). + + keys: + $ref: ../input/iqs62x-keys.yaml + + pwm: + $ref: ../pwm/iqs620a-pwm.yaml + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + /* + * Dual capacitive buttons with additional "air button," unipolar lid + * switch and panel-mounted LED. + */ + #include + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + iqs620a@44 { + compatible = "azoteq,iqs620a"; + reg = <0x44>; + interrupt-parent = <&gpio>; + interrupts = <17 IRQ_TYPE_LEVEL_LOW>; + + keys { + compatible = "azoteq,iqs620a-keys"; + + linux,keycodes = , + , + , + ; + + hall-switch-south { + linux,code = ; + azoteq,use-prox; + }; + }; + + iqs620a_pwm: pwm { + compatible = "azoteq,iqs620a-pwm"; + #pwm-cells = <2>; + }; + }; + }; + + pwmleds { + compatible = "pwm-leds"; + + panel { + pwms = <&iqs620a_pwm 0 1000000>; + max-brightness = <255>; + }; + }; + + - | + /* Single inductive button with bipolar dock/tablet-mode switch. */ + #include + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + iqs620a@44 { + compatible = "azoteq,iqs620a"; + reg = <0x44>; + interrupt-parent = <&gpio>; + interrupts = <17 IRQ_TYPE_LEVEL_LOW>; + + firmware-name = "iqs620a_coil.bin"; + + keys { + compatible = "azoteq,iqs620a-keys"; + + linux,keycodes = <0>, + <0>, + <0>, + <0>, + <0>, + <0>, + ; + + hall-switch-north { + linux,code = ; + }; + + hall-switch-south { + linux,code = ; + }; + }; + }; + }; + + - | + /* Dual capacitive buttons with volume knob. */ + #include + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + iqs624@44 { + compatible = "azoteq,iqs624"; + reg = <0x44>; + interrupt-parent = <&gpio>; + interrupts = <17 IRQ_TYPE_LEVEL_LOW>; + + keys { + compatible = "azoteq,iqs624-keys"; + + linux,keycodes = , + <0>, + , + <0>, + <0>, + <0>, + <0>, + <0>, + <0>, + <0>, + <0>, + <0>, + <0>, + <0>, + , + ; + }; + }; + }; + +... diff --git a/Documentation/devicetree/bindings/pwm/iqs620a-pwm.yaml b/Documentation/devicetree/bindings/pwm/iqs620a-pwm.yaml new file mode 100644 index 0000000..1d7c27b --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/iqs620a-pwm.yaml @@ -0,0 +1,32 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/iqs620a-pwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Azoteq IQS620A PWM Generator + +maintainers: + - Jeff LaBundy + +description: | + The Azoteq IQS620A multi-function sensor generates a fixed-frequency PWM + output represented by a "pwm" child node from the parent MFD driver. See + Documentation/devicetree/bindings/mfd/iqs62x.yaml for further details as + well as an example. + +properties: + compatible: + enum: + - azoteq,iqs620a-pwm + + "#pwm-cells": + const: 2 + +required: + - compatible + - "#pwm-cells" + +additionalProperties: false + +...