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/Documentation/devicetree/bindings/input/
Dgpio-keys.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/input/gpio-keys.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: GPIO attached keys
10 - Rob Herring <robh@kernel.org>
15 - gpio-keys
16 - gpio-keys-polled
23 poll-interval: true
26 …"^(button|event|key|switch|(button|event|key|switch)-[a-z0-9-]+|[a-z0-9-]+-(button|event|key|switc…
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Dgpio-matrix-keypad.txt1 * GPIO driven matrix keypad device tree bindings
3 GPIO driven matrix keypad is used to interface a SoC with a matrix keypad.
4 The matrix keypad supports multiple row and column lines, a key can be
6 keypad can sense a key-press and key-release by means of GPIO lines and
7 report the event using GPIO interrupts to the cpu.
10 - compatible: Should be "gpio-matrix-keypad"
11 - row-gpios: List of gpios used as row lines. The gpio specifier
12 for this property depends on the gpio controller to
14 - col-gpios: List of gpios used as column lines. The gpio specifier
15 for this property depends on the gpio controller to
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Dadi,adp5588.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Nuno Sá <nuno.sa@analog.com>
14 https://www.analog.com/media/en/technical-documentation/data-sheets/ADP5588.pdf
17 - $ref: matrix-keymap.yaml#
18 - $ref: input.yaml#
23 - adi,adp5587
24 - adi,adp5588
29 vcc-supply:
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/Documentation/devicetree/bindings/sound/
Dsamsung,aries-wm8994.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/samsung,aries-wm8994.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jonathan Bakker <xc-racer2@live.ca>
13 - $ref: sound-card-common.yaml#
19 - samsung,aries-wm8994
21 - samsung,fascinate4g-wm8994
27 sound-dai:
34 - sound-dai
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Dsamsung,midas-audio.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/samsung,midas-audio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Sylwester Nawrocki <s.nawrocki@samsung.com>
13 - $ref: sound-card-common.yaml#
17 const: samsung,midas-audio
23 sound-dai:
27 - sound-dai
33 sound-dai:
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Dnuvoton,nau8821.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Seven Lee <wtli@nuvoton.com>
13 - $ref: dai-common.yaml#
25 nuvoton,jkdet-enable:
29 nuvoton,jkdet-pull-enable:
30 description: Enable JKDET pin pull. If set - pin pull enabled,
34 nuvoton,jkdet-pull-up:
35 description: Pull-up JKDET pin. If set then JKDET pin is pull up,
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Dnuvoton,nau8824.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - John Hsu <KCHSU0@nuvoton.com>
13 - $ref: dai-common.yaml#
18 - nuvoton,nau8824
23 '#sound-dai-cells':
28 - description: The phandle of the master clock to the CODEC
30 clock-names:
32 - const: mclk
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Dnuvoton,nau8825.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - John Hsu <KCHSU0@nuvoton.com>
13 - $ref: dai-common.yaml#
18 - nuvoton,nau8825
26 nuvoton,jkdet-enable:
31 nuvoton,jkdet-pull-enable:
34 If set - pin pull enabled, otherwise pin in high impedance state.
37 nuvoton,jkdet-pull-up:
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/Documentation/admin-guide/gpio/
Dgpio-virtuser.rst1 .. SPDX-License-Identifier: GPL-2.0-only
3 Virtual GPIO Consumer
6 The virtual GPIO Consumer module allows users to instantiate virtual devices
8 consumer devices can be instantiated from device-tree or over configfs.
10 A virtual consumer uses the driver-facing GPIO APIs and allows to cover it with
11 automated tests driven by user-space. The GPIOs are requested using
14 Creating GPIO consumers
15 -----------------------
17 The gpio-consumer module registers a configfs subsystem called
18 ``'gpio-virtuser'``. For details of the configfs filesystem, please refer to
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/Documentation/devicetree/bindings/input/touchscreen/
Dcypress,cy8ctma340.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
14 - Javier Martinez Canillas <javier@dowhile0.org>
15 - Linus Walleij <linus.walleij@linaro.org>
18 - $ref: touchscreen.yaml#
26 - const: cypress,cy8ctma340
27 - const: cypress,cy8ctst341
28 - const: cypress,cyttsp-spi
31 - const: cypress,cyttsp-i2c
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/Documentation/driver-api/gpio/
Dboard.rst2 GPIO Mappings
7 All platforms can enable the GPIO library, but if the platform strictly
8 requires GPIO functionality to be present, it needs to select GPIOLIB from its
14 -----------
16 exact way to do it depends on the GPIO controller providing the GPIOs, see the
20 <function>-gpios, where <function> is the function the driver will request
26 led-gpios = <&gpio 15 GPIO_ACTIVE_HIGH>, /* red */
27 <&gpio 16 GPIO_ACTIVE_HIGH>, /* green */
28 <&gpio 17 GPIO_ACTIVE_HIGH>; /* blue */
30 power-gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
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Ddrivers-on-gpio.rst2 Subsystem drivers using GPIO
5 Note that standard kernel drivers exist for common GPIO tasks and will provide
6 the right in-kernel and userspace APIs/ABIs for the job, and that these
10 - leds-gpio: drivers/leds/leds-gpio.c will handle LEDs connected to GPIO
13 - ledtrig-gpio: drivers/leds/trigger/ledtrig-gpio.c will provide a LED trigger,
14 i.e. a LED will turn on/off in response to a GPIO line going high or low
15 (and that LED may in turn use the leds-gpio as per above).
17 - gpio-keys: drivers/input/keyboard/gpio_keys.c is used when your GPIO line
18 can generate interrupts in response to a key press. Also supports debounce.
20 - gpio-keys-polled: drivers/input/keyboard/gpio_keys_polled.c is used when your
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/Documentation/devicetree/bindings/mfd/
Dstericsson,ab8500.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: ST-Ericsson Analog Baseband AB8500 and AB8505
10 - Linus Walleij <linus.walleij@linaro.org>
13 the AB8500 "Analog Baseband" is the mixed-signals integrated circuit
14 handling power management (regulators), analog-to-digital conversion
15 (ADC), battery charging, fuel gauging of the battery, battery-backed
16 RTC, PWM, USB PHY and some GPIO lines in the ST-Ericsson U8500 platforms
21 USB charging handling has changed, and it has an embedded USB-to-serial
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Dda9055.txt3 DA9055 consists of a large and varied group of sub-devices (I2C Only):
6 ------ ------------ -----------
7 da9055-gpio : : GPIOs
8 da9055-regulator : : Regulators
9 da9055-onkey : : On key
10 da9055-rtc : : RTC
11 da9055-hwmon : : ADC
12 da9055-watchdog : : Watchdog
23 - compatible : Should be "dlg,da9055-pmic"
24 - reg: Specifies the I2C slave address (defaults to 0x5a but can be modified)
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Ddlg,da9063.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Steve Twiss <stwiss.opensource@diasemi.com>
13 For device-tree bindings of other sub-modules refer to the binding documents
14 under the respective sub-system directories.
15 Using regulator-{uv,ov}-{warn,error,protection}-microvolt requires special
21 - https://www.dialog-semiconductor.com/products/da9063l
22 - https://www.dialog-semiconductor.com/products/da9063
23 - https://www.dialog-semiconductor.com/products/da9062
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Dst,stmpe.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 bus controllers for various expanded peripherals such as GPIO, keypad,
15 - Linus Walleij <linus.walleij@linaro.org>
18 - $ref: /schemas/spi/spi-peripheral-props.yaml#
23 - st,stmpe601
24 - st,stmpe801
25 - st,stmpe811
26 - st,stmpe1600
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/Documentation/devicetree/bindings/soc/renesas/
Drenesas,rzv2m-pwc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/soc/renesas/renesas,rzv2m-pwc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
12 - external power supply on/off sequence generation
13 - on/off signal generation for the LPDDR4 core power supply (LPVDD)
14 - key input signals processing
15 - general-purpose output pins
18 - Fabrizio Castro <fabrizio.castro.jz@renesas.com>
23 - enum:
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/Documentation/devicetree/bindings/power/supply/
Dlego,ev3-battery.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/power/supply/lego,ev3-battery.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - David Lechner <david@lechnology.com>
11 - Sebastian Reichel <sre@kernel.org>
14 LEGO MINDSTORMS EV3 has some built-in capability for monitoring the battery.
15 It uses 6 AA batteries or a special Li-ion rechargeable battery pack that is
16 detected by a key switch in the battery compartment.
19 - $ref: power-supply.yaml#
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/Documentation/devicetree/bindings/firmware/
Dfsl,scu.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Dong Aisheng <aisheng.dong@nxp.com>
13 The System Controller Firmware (SCFW) is a low-level system function
14 which runs on a dedicated Cortex-M core to provide power, clock, and
17 The AP communicates with the SC using a multi-ported MU module found
26 const: fsl,imx-scu
28 clock-controller:
31 $ref: /schemas/clock/fsl,scu-clk.yaml
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/Documentation/devicetree/bindings/net/bluetooth/
Dmediatek,mt7921s-bluetooth.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/net/bluetooth/mediatek,mt7921s-bluetooth.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Sean Wang <sean.wang@mediatek.com>
13 MT7921S is an SDIO-attached dual-radio WiFi+Bluetooth Combo chip; each
20 - $ref: bluetooth-controller.yaml#
25 - mediatek,mt7921s-bluetooth
30 reset-gpios:
33 An active-low reset line for the Bluetooth core; on typical M.2
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/Documentation/devicetree/bindings/power/
Dwakeup-source.txt5 ----------------
7 "wakeup-source" boolean property.
9 If the device is marked as a wakeup-source, interrupt wake capability depends
10 on the device specific "interrupt-names" property. If no interrupts are labeled
22 ---------------------------------------------------------
24 1. "gpio-key,wakeup" Documentation/devicetree/bindings/input/gpio-keys{,-polled}.txt
25 2. "has-tpo" Documentation/devicetree/bindings/rtc/rtc-opal.txt
26 3. "linux,wakeup" Documentation/devicetree/bindings/input/gpio-matrix-keypad.txt
29 4. "linux,keypad-wakeup" Documentation/devicetree/bindings/input/qcom,pm8921-keypad.yaml
30 5. "linux,input-wakeup" Documentation/devicetree/bindings/input/samsung,s3c6410-keypad.yaml
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/Documentation/devicetree/bindings/pinctrl/
Dbrcm,cygnus-pinmux.txt4 addition, certain pins can be muxed to GPIO function individually.
8 - compatible:
9 Must be "brcm,cygnus-pinmux"
11 - reg:
17 - function:
20 - groups:
24 Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
29 compatible = "brcm,cygnus-pinmux";
32 pinctrl-names = "default";
33 pinctrl-0 = <&i2s0_default>;
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/Documentation/devicetree/bindings/firmware/xilinx/
Dxlnx,zynqmp-firmware.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/firmware/xilinx/xlnx,zynqmp-firmware.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Nava kishore Manne <nava.kishore.manne@amd.com>
12 description: The zynqmp-firmware node describes the interface to platform
23 - description: For implementations complying for Zynq Ultrascale+ MPSoC.
24 const: xlnx,zynqmp-firmware
26 - description: For implementations complying for Versal.
27 const: xlnx,versal-firmware
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/Documentation/admin-guide/
Dindex.rst5 The following is a collection of user-oriented documents that have been
18 kernel-parameters
30 hw-vuln/index
38 reporting-issues
39 reporting-regressions
40 quickly-build-trimmed-linux
41 verify-bugs-and-bisect-regressions
42 bug-hunting
43 bug-bisect
44 tainted-kernels
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/Documentation/sound/hd-audio/
Dmodels.rst2 HD-Audio Codec-Specific Models
8 3-jack in back and a headphone out
9 3stack-digout
10 3-jack in back, a HP out and a SPDIF out
12 5-jack in back, 2-jack in front
13 5stack-digout
14 5-jack in back, 2-jack in front, a SPDIF out
16 6-jack in back, 2-jack in front
17 6stack-digout
18 6-jack with a SPDIF out
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