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/Documentation/devicetree/bindings/mux/
Dmux-consumer.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/mux/mux-consumer.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Peter Rosin <peda@axentia.se>
13 Mux controller consumers should specify a list of mux controllers that they
14 want to use with a property containing a 'mux-ctrl-list':
16 mux-ctrl-list ::= <single-mux-ctrl> [mux-ctrl-list]
17 single-mux-ctrl ::= <mux-ctrl-phandle> [mux-ctrl-specifier]
18 mux-ctrl-phandle : phandle to mux controller node
[all …]
Dmux-controller.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/mux/mux-controller.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Peter Rosin <peda@axentia.se>
13 A multiplexer (or mux) controller will have one, or several, consumer devices
14 that uses the mux controller. Thus, a mux controller can possibly control
16 multiplexer needed by each consumer, but a single mux controller can of course
19 A mux controller provides a number of states to its consumers, and the state
20 space is a simple zero-based enumeration. I.e. 0-1 for a 2-way multiplexer,
[all …]
Dreg-mux.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/mux/reg-mux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Generic register bitfield-based multiplexer controller
10 - Peter Rosin <peda@axentia.se>
19 - reg-mux # parent device of mux controller is not syscon device
20 - mmio-mux # parent device of mux controller is syscon device
24 '#mux-control-cells':
27 mux-reg-masks:
[all …]
Dadi,adg792a.txt4 - compatible : "adi,adg792a" or "adi,adg792g"
5 - #mux-control-cells : <0> if parallel (the three muxes are bound together
6 with a single mux controller controlling all three muxes), or <1> if
7 not (one mux controller for each mux).
8 * Standard mux-controller bindings as described in mux-controller.yaml
11 - gpio-controller : if present, #gpio-cells below is required.
12 - #gpio-cells : should be <2>
13 - First cell is the GPO line number, i.e. 0 or 1
14 - Second cell is used to specify active high (0)
18 - idle-state : if present, array of states that the mux controllers will have
[all …]
Dgpio-mux.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/mux/gpio-mux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: GPIO-based multiplexer controller
10 - Peter Rosin <peda@axentia.se>
22 const: gpio-mux
24 mux-gpios:
28 '#mux-control-cells':
31 '#mux-state-cells':
[all …]
Dadi,adgs1408.txt1 Bindings for Analog Devices ADGS1408/1409 8:1/Dual 4:1 Mux
4 - compatible : Should be one of
7 * Standard mux-controller bindings as described in mux-controller.yaml
10 - gpio-controller : if present, #gpio-cells is required.
11 - #gpio-cells : should be <2>
12 - First cell is the GPO line number, i.e. 0 to 3
14 - Second cell is used to specify active high (0)
18 - idle-state : if present, the state that the mux controller will have
28 * One mux controller.
29 * Mux state set to idle as is (no idle-state declared)
[all …]
/Documentation/devicetree/bindings/net/
Dmdio-mux-multiplexer.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/net/mdio-mux-multiplexer.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Andrew Lunn <andrew@lunn.ch>
13 This is a special case of MDIO mux when MDIO mux is defined as a consumer
14 of a mux producer device. The mux producer can be of any type like mmio mux
15 producer, gpio mux producer or generic register based mux producer.
19 - $ref: /schemas/net/mdio-mux.yaml#
23 const: mdio-mux-multiplexer
[all …]
Dmdio-mux-mmioreg.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/net/mdio-mux-mmioreg.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Properties for an MDIO bus multiplexer controlled by a memory-mapped device
10 - Andrew Lunn <andrew@lunn.ch>
13 This is a special case of a MDIO bus multiplexer. A memory-mapped device,
14 like an FPGA, is used to control which child bus is connected. The mdio-mux
15 node must be a child of the memory-mapped device. The driver currently only
16 supports devices with 8, 16 or 32-bit registers.
[all …]
/Documentation/devicetree/bindings/iio/multiplexer/
Dio-channel-mux.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/iio/multiplexer/io-channel-mux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Peter Rosin <peda@axentia.se>
16 For each non-empty string in the channels property, an io-channel will be
17 created. The number of this io-channel is the same as the index into the list
18 of strings in the channels property, and also matches the mux controller
19 state. The mux controller state is described in
20 Documentation/devicetree/bindings/mux/mux-controller.yaml
[all …]
/Documentation/devicetree/bindings/i2c/
Di2c-mux-gpmux.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/i2c/i2c-mux-gpmux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: General Purpose I2C Bus Mux
10 - Peter Rosin <peda@axentia.se>
13 This binding describes an I2C bus multiplexer that uses a mux controller
14 from the mux subsystem to route the I2C signals.
16 .-----. .-----.
18 .------------. '-----' '-----'
[all …]
/Documentation/i2c/
Di2c-topology.rst6 than a straight-forward I2C bus with one adapter and one or more devices.
10 1. A mux may be needed on the bus to prevent address collisions.
25 I2C transfers, and all adapters with a parent are part of an "i2c-mux"
28 Depending of the particular mux driver, something happens when there is
29 an I2C transfer on one of its child adapters. The mux driver can
30 obviously operate a mux, but it can also do arbitration with an external
31 bus master or open a gate. The mux driver has two operations for this,
40 mux-locked or parent-locked muxes.
43 Mux-locked muxes
44 ----------------
[all …]
Di2c-sysfs.rst1 .. SPDX-License-Identifier: GPL-2.0
10 I2C topology can be complex because of the existence of I2C MUX
12 kernel abstracts the MUX channels into logical I2C bus numbers. However, there
13 is a gap of knowledge to map from the I2C bus physical number and MUX topology
18 useful and essential to use ``i2c-tools`` for the purpose of development and
22 ---------------
28 -------------
32 2. General knowledge of I2C, I2C MUX and I2C topology.
41 start with ``i2c-`` are I2C buses, which may be either physical or logical. The
48 0-0008 0-0061 1-0028 3-0043 4-0036 4-0041 i2c-1 i2c-3
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/Documentation/devicetree/bindings/media/
Dvideo-mux.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/media/video-mux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Sakari Ailus <sakari.ailus@linux.intel.com>
11 - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
20 const: video-mux
22 mux-controls:
25 '#address-cells':
28 '#size-cells':
[all …]
/Documentation/ABI/testing/
Dsysfs-class-mux1 What: /sys/class/mux/
6 The mux/ class sub-directory belongs to the Generic MUX
7 Framework and provides a sysfs interface for using MUX
10 What: /sys/class/mux/muxchip<N>/
15 A /sys/class/mux/muxchipN directory is created for each
16 probed MUX chip where N is a simple enumeration.
/Documentation/devicetree/bindings/soc/microchip/
Dmicrochip,sparx5-cpu-syscon.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/soc/microchip/microchip,sparx5-cpu-syscon.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Lars Povlsen <lars.povlsen@microchip.com>
15 - const: microchip,sparx5-cpu-syscon
16 - const: syscon
17 - const: simple-mfd
22 mux-controller:
23 $ref: /schemas/mux/reg-mux.yaml#
[all …]
/Documentation/devicetree/bindings/soc/ti/
Dti,am654-serdes-ctrl.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/soc/ti/ti,am654-serdes-ctrl.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Nishanth Menon <nm@ti.com>
15 - const: ti,am654-serdes-ctrl
16 - const: syscon
17 - const: simple-mfd
22 mux-controller:
23 $ref: /schemas/mux/reg-mux.yaml#
[all …]
/Documentation/firmware-guide/acpi/
Dintel-pmc-mux.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Intel North Mux-Agent
10 North Mux-Agent is a function of the Intel PMC firmware that is supported on
13 platforms that allow the mux-agent to be configured from the operating system
16 The North Mux-Agent (aka. Intel PMC Mux Control, or just mux-agent) driver
18 (drivers/platform/x86/intel_scu_ipc.c). The driver registers with the USB Type-C
19 Mux Class which allows the USB Type-C Controller and Interface drivers to
22 Device modes. The driver is located here: drivers/usb/typec/mux/intel_pmc_mux.c.
28 -------
30 For every USB Type-C connector under the mux-agent control on the system, there
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/Documentation/devicetree/bindings/clock/
Dnxp,imx95-display-master-csr.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/clock/nxp,imx95-display-master-csr.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Peng Fan <peng.fan@nxp.com>
15 - const: nxp,imx95-display-master-csr
16 - const: syscon
21 power-domains:
27 '#clock-cells':
32 include/dt-bindings/clock/nxp,imx95-clock.h
[all …]
/Documentation/devicetree/bindings/sound/
Dsimple-audio-mux.yaml1 # SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/simple-audio-mux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Alexandre Belloni <aleandre.belloni@bootlin.com>
17 - $ref: dai-common.yaml#
21 const: simple-audio-mux
23 mux-gpios:
27 state-labels:
29 $ref: /schemas/types.yaml#/definitions/string-array
[all …]
Dmt8186-afe-pcm.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/mt8186-afe-pcm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jiaxin Yu <jiaxin.yu@mediatek.com>
14 const: mediatek,mt8186-sound
25 reset-names:
42 - description: audio infra sys clock
43 - description: audio infra 26M clock
44 - description: audio top mux
[all …]
/Documentation/devicetree/bindings/clock/ti/
Dmux.txt1 Binding for TI mux clock.
4 register-mapped multiplexer with multiple input clock signals or
22 "index-starts-at-one" modified the scheme as follows:
29 The binding must provide the register to control the mux. Optionally
34 [1] Documentation/devicetree/bindings/clock/clock-bindings.txt
37 - compatible : shall be "ti,mux-clock" or "ti,composite-mux-clock".
38 - #clock-cells : from common clock binding; shall be set to 0.
39 - clocks : link phandles of parent clocks
40 - reg : register offset for register controlling adjustable mux
43 - clock-output-names : from common clock binding.
[all …]
/Documentation/i2c/muxes/
Di2c-mux-gpio.rst2 Kernel driver i2c-mux-gpio
8 -----------
10 i2c-mux-gpio is an i2c mux driver providing access to I2C bus segments
11 from a master I2C bus and a hardware MUX controlled through GPIO pins.
15 ---------- ---------- Bus segment 1 - - - - -
16 | | SCL/SDA | |-------------- | |
17 | |------------| |
19 | Linux | GPIO 1..N | MUX |--------------- Devices
20 | |------------| | | |
22 | | | |---------------| |
[all …]
/Documentation/devicetree/bindings/spi/
Dspi-mux.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/spi/spi-mux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
13 setting of the multiplexer to a channel needs to be done by a specific SPI mux
16 MOSI /--------------------------------+--------+--------+--------\
17 MISO |/------------------------------+|-------+|-------+|-------\|
18 SCL ||/----------------------------+||------+||------+||------\||
20 +------------+ ||| ||| ||| |||
21 | SoC ||| | +-+++-+ +-+++-+ +-+++-+ +-+++-+
[all …]
/Documentation/devicetree/bindings/soc/imx/
Dfsl,imx-iomuxc-gpr.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/soc/imx/fsl,imx-iomuxc-gpr.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Peng Fan <peng.fan@nxp.com>
19 - items:
20 - enum:
21 - fsl,imx6q-iomuxc-gpr
22 - fsl,imx8mq-iomuxc-gpr
23 - const: syscon
[all …]
/Documentation/devicetree/bindings/board/
Dfsl,fpga-qixis-i2c.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/board/fsl,fpga-qixis-i2c.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Freescale on-board FPGA connected on I2C bus
10 - Frank Li <Frank.Li@nxp.com>
15 - items:
16 - enum:
17 - fsl,bsc9132qds-fpga
18 - const: fsl,fpga-qixis-i2c
[all …]

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