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/Linux-v5.15/Documentation/devicetree/bindings/mux/
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 bindings
10 - Peter Rosin <peda@axentia.se>
13 Define what GPIO pins are used to control a multiplexer. Or several
17 multiplexer GPIO pins, where the first pin is the least significant
22 const: gpio-mux
24 mux-gpios:
[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 …]
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 …]
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 …]
/Linux-v5.15/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 …]
Di2c-mux-gpio.txt1 GPIO-based I2C Bus Mux
6 +-----+ +-----+
8 +------------+ +-----+ +-----+
10 | | /--------+--------+
11 | +------+ | +------+ child bus A, on GPIO value set to 0
12 | | I2C |-|--| Mux |
13 | +------+ | +--+---+ child bus B, on GPIO value set to 1
14 | | | \----------+--------+--------+
15 | +------+ | | | | |
16 | | GPIO |-|-----+ +-----+ +-----+ +-----+
[all …]
Di2c-mux-ltc4306.txt5 - compatible: Must contain one of the following.
7 - reg: The I2C address of the device.
11 - Standard I2C mux properties. See i2c-mux.yaml in this directory.
12 - I2C child bus nodes. See i2c-mux.yaml in this directory.
16 - enable-gpios: Reference to the GPIO connected to the enable input.
17 - i2c-mux-idle-disconnect: Boolean; if defined, forces mux to disconnect all
20 - gpio-controller: Marks the device node as a GPIO Controller.
21 - #gpio-cells: Should be two. The first cell is the pin number and
23 See ../gpio/gpio.txt for more information.
24 - ltc,downstream-accelerators-enable: Enables the rise time accelerators
[all …]
Di2c-mux.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/i2c/i2c-mux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Peter Rosin <peda@axentia.se>
18 i2c child busses and other child nodes, the 'i2c-mux' subnode can be used for
19 populating the i2c child busses. If an 'i2c-mux' subnode is present, only
24 pattern: '^(i2c-?)?mux'
26 '#address-cells':
29 '#size-cells':
[all …]
/Linux-v5.15/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 …]
/Linux-v5.15/drivers/i2c/muxes/
Di2c-mux-gpio.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * I2C multiplexer using GPIO API
9 #include <linux/i2c-mux.h>
10 #include <linux/platform_data/i2c-mux-gpio.h>
15 #include <linux/gpio/consumer.h>
17 #include "../../gpio/gpiolib.h"
25 static void i2c_mux_gpio_set(const struct gpiomux *mux, unsigned val) in i2c_mux_gpio_set() argument
31 gpiod_set_array_value_cansleep(mux->ngpios, mux->gpios, NULL, values); in i2c_mux_gpio_set()
36 struct gpiomux *mux = i2c_mux_priv(muxc); in i2c_mux_gpio_select() local
38 i2c_mux_gpio_set(mux, chan); in i2c_mux_gpio_select()
[all …]
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
10 tristate "GPIO-based I2C arbitration"
17 a GPIO.
20 will be called i2c-arb-gpio-challenge.
23 tristate "GPIO-based I2C multiplexer"
27 GPIO based I2C multiplexer. This driver provides access to
28 I2C busses connected through a MUX, which is controlled
29 through GPIO pins.
32 will be called i2c-mux-gpio.
41 I2C busses connected through a MUX, which in turn is controlled
[all …]
/Linux-v5.15/arch/arm/boot/dts/
Daspeed-bmc-ampere-mtjade.dts1 // SPDX-License-Identifier: GPL-2.0+
2 /dts-v1/;
3 #include "aspeed-g5.dtsi"
4 #include <dt-bindings/gpio/aspeed-gpio.h>
8 compatible = "ampere,mtjade-bmc", "aspeed,ast2500";
11 stdout-path = &uart5;
19 reserved-memory {
20 #address-cells = <1>;
21 #size-cells = <1>;
25 no-map;
[all …]
Dqcom-apq8064-pins.dtsi1 // SPDX-License-Identifier: GPL-2.0
4 sdc4_gpios: sdc4-gpios {
11 sdcc1_pins: sdcc1-pin-active {
14 drive-strengh = <16>;
15 bias-disable;
20 drive-strengh = <10>;
21 bias-pull-up;
26 drive-strengh = <10>;
27 bias-pull-up;
31 sdcc3_pins: sdcc3-pin-active {
[all …]
Dmmp3.dtsi1 // SPDX-License-Identifier: GPL-2.0+ OR MIT
6 #include <dt-bindings/clock/marvell,mmp2.h>
7 #include <dt-bindings/power/marvell,mmp2.h>
8 #include <dt-bindings/interrupt-controller/arm-gic.h>
11 #address-cells = <1>;
12 #size-cells = <1>;
15 #address-cells = <1>;
16 #size-cells = <0>;
17 enable-method = "marvell,mmp3-smp";
22 next-level-cache = <&l2>;
[all …]
/Linux-v5.15/arch/arm64/boot/dts/amlogic/
Dmeson-gxbb.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
6 #include "meson-gx.dtsi"
7 #include "meson-gx-mali450.dtsi"
8 #include <dt-bindings/gpio/meson-gxbb-gpio.h>
9 #include <dt-bindings/reset/amlogic,meson-gxbb-reset.h>
10 #include <dt-bindings/clock/gxbb-clkc.h>
11 #include <dt-bindings/clock/gxbb-aoclkc.h>
12 #include <dt-bindings/reset/gxbb-aoclkc.h>
15 compatible = "amlogic,meson-gxbb";
19 compatible = "amlogic,meson-gxbb-usb2-phy";
[all …]
Dmeson-gxl.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
7 #include "meson-gx.dtsi"
8 #include <dt-bindings/clock/gxbb-clkc.h>
9 #include <dt-bindings/clock/gxbb-aoclkc.h>
10 #include <dt-bindings/gpio/meson-gxl-gpio.h>
11 #include <dt-bindings/reset/amlogic,meson-gxbb-reset.h>
14 compatible = "amlogic,meson-gxl";
18 compatible = "amlogic,meson-gxl-usb-ctrl";
21 #address-cells = <2>;
22 #size-cells = <2>;
[all …]
/Linux-v5.15/drivers/mux/
Dgpio.c1 // SPDX-License-Identifier: GPL-2.0
3 * GPIO-controlled multiplexer driver
12 #include <linux/gpio/consumer.h>
15 #include <linux/mux/driver.h>
23 static int mux_gpio_set(struct mux_control *mux, int state) in mux_gpio_set() argument
25 struct mux_gpio *mux_gpio = mux_chip_priv(mux->chip); in mux_gpio_set()
31 gpiod_set_array_value_cansleep(mux_gpio->gpios->ndescs, in mux_gpio_set()
32 mux_gpio->gpios->desc, in mux_gpio_set()
33 mux_gpio->gpios->info, values); in mux_gpio_set()
43 { .compatible = "gpio-mux", },
[all …]
DMakefile1 # SPDX-License-Identifier: GPL-2.0
6 mux-core-objs := core.o
7 mux-adg792a-objs := adg792a.o
8 mux-adgs1408-objs := adgs1408.o
9 mux-gpio-objs := gpio.o
10 mux-mmio-objs := mmio.o
12 obj-$(CONFIG_MULTIPLEXER) += mux-core.o
13 obj-$(CONFIG_MUX_ADG792A) += mux-adg792a.o
14 obj-$(CONFIG_MUX_ADGS1408) += mux-adgs1408.o
15 obj-$(CONFIG_MUX_GPIO) += mux-gpio.o
[all …]
/Linux-v5.15/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 …]
/Linux-v5.15/Documentation/devicetree/bindings/pinctrl/
Dqcom,msm8974-pinctrl.txt4 - compatible: "qcom,msm8974-pinctrl"
5 - reg: Should be the base address and length of the TLMM block.
6 - interrupts: Should be the parent IRQ of the TLMM block.
7 - interrupt-controller: Marks the device node as an interrupt controller.
8 - #interrupt-cells: Should be two.
9 - gpio-controller: Marks the device node as a GPIO controller.
10 - #gpio-cells : Should be two.
11 The first cell is the gpio pin number and the
13 - gpio-ranges: see ../gpio/gpio.txt
17 - gpio-reserved-ranges: see ../gpio/gpio.txt
[all …]
Dqcom,ipq8064-pinctrl.txt4 - compatible: "qcom,ipq8064-pinctrl"
5 - reg: Should be the base address and length of the TLMM block.
6 - interrupts: Should be the parent IRQ of the TLMM block.
7 - interrupt-controller: Marks the device node as an interrupt controller.
8 - #interrupt-cells: Should be two.
9 - gpio-controller: Marks the device node as a GPIO controller.
10 - #gpio-cells : Should be two.
11 The first cell is the gpio pin number and the
13 - gpio-ranges: see ../gpio/gpio.txt
17 - gpio-reserved-ranges: see ../gpio/gpio.txt
[all …]
Dqcom,ipq4019-pinctrl.txt7 - compatible: "qcom,ipq4019-pinctrl"
8 - reg: Should be the base address and length of the TLMM block.
9 - interrupts: Should be the parent IRQ of the TLMM block.
10 - interrupt-controller: Marks the device node as an interrupt controller.
11 - #interrupt-cells: Should be two.
12 - gpio-controller: Marks the device node as a GPIO controller.
13 - #gpio-cells : Should be two.
14 The first cell is the gpio pin number and the
16 - gpio-ranges: see ../gpio/gpio.txt
20 - gpio-reserved-ranges: see ../gpio/gpio.txt
[all …]
Dst,stm32-pinctrl.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/pinctrl/st,stm32-pinctrl.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: STM32 GPIO and Pin Mux/Config controller
11 - Alexandre TORGUE <alexandre.torgue@st.com>
14 STMicroelectronics's STM32 MCUs intregrate a GPIO and Pin mux/config hardware
17 on-chip controllers onto these pads.
22 - st,stm32f429-pinctrl
23 - st,stm32f469-pinctrl
[all …]
/Linux-v5.15/drivers/pinctrl/
Dpinmux.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2011-2012 ST-Ericsson SA
6 * Written on behalf of Linaro for ST-Ericsson
7 * Based on bits of regulator core, gpio core and clk core
21 #include <linux/radix-tree.h>
34 const struct pinmux_ops *ops = pctldev->desc->pmxops; in pinmux_check_ops()
40 !ops->get_functions_count || in pinmux_check_ops()
41 !ops->get_function_name || in pinmux_check_ops()
42 !ops->get_function_groups || in pinmux_check_ops()
43 !ops->set_mux) { in pinmux_check_ops()
[all …]
/Linux-v5.15/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 …]

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