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/openbmc/u-boot/drivers/i2c/muxes/
H A Di2c-mux-gpio.c1 // SPDX-License-Identifier: GPL-2.0+
11 #include <asm-generic/gpio.h>
22 * struct i2c_mux_gpio_priv - private data for i2c mux gpio
26 * @gpios: the mux-gpios array
27 * @n_gpios: num of gpios in mux-gpios
28 * @idle: the value of idle-state
33 struct gpio_desc *gpios; member
45 for (i = 0; i < priv->n_gpios; i++) { in i2c_mux_gpio_select()
46 ret = dm_gpio_set_value(&priv->gpios[i], (channel >> i) & 1); in i2c_mux_gpio_select()
60 for (i = 0; i < priv->n_gpios; i++) { in i2c_mux_gpio_deselect()
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/openbmc/linux/drivers/mux/
H A Dgpio.c1 // SPDX-License-Identifier: GPL-2.0
3 * GPIO-controlled multiplexer driver
15 #include <linux/mux/driver.h>
20 struct gpio_descs *gpios; member
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", },
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/openbmc/linux/arch/arm/boot/dts/nuvoton/
H A Dnuvoton-npcm730-gbs.dts1 // SPDX-License-Identifier: GPL-2.0
4 /dts-v1/;
5 #include "nuvoton-npcm730.dtsi"
6 #include <dt-bindings/gpio/gpio.h>
10 compatible = "quanta,gbs-bmc","nuvoton,npcm730";
71 stdout-path = &serial0;
78 gpio-keys {
79 compatible = "gpio-keys";
80 sas-cable0 {
81 label = "sas-cable0";
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H A Dnuvoton-npcm750-runbmc-olympus.dts1 // SPDX-License-Identifier: GPL-2.0
5 /dts-v1/;
6 #include "nuvoton-npcm750.dtsi"
7 #include "nuvoton-npcm750-runbmc-olympus-pincfg.dtsi"
9 #include <dt-bindings/i2c/i2c.h>
10 #include <dt-bindings/gpio/gpio.h>
43 stdout-path = &serial3;
50 iio-hwmon {
51 compatible = "iio-hwmon";
52 io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 3>,
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/openbmc/linux/arch/arm/boot/dts/microchip/
H A Dlan966x-pcb8309.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
3 * lan966x_pcb8309.dts - Device Tree file for PCB8309
5 /dts-v1/;
7 #include "dt-bindings/phy/phy-lan966x-serdes.h"
10 model = "Microchip EVB - LAN9662";
11 compatible = "microchip,lan9662-pcb8309", "microchip,lan9662", "microchip,lan966";
20 stdout-path = "serial0:115200n8";
23 gpio-restart {
24 compatible = "gpio-restart";
25 gpios = <&gpio 56 GPIO_ACTIVE_LOW>;
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H A Dat91-tse850-3.dts1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * at91-tse850-3.dts - Device Tree file for the Axentia TSE-850 3.0 board
9 /dts-v1/;
10 #include <dt-bindings/pwm/pwm.h>
11 #include "at91-linea.dtsi"
14 model = "Axentia TSE-850 3.0";
19 compatible = "fixed-clock";
21 #clock-cells = <0>;
22 clock-frequency = <16000000>;
23 clock-output-names = "sck";
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/openbmc/linux/Documentation/devicetree/bindings/sound/
H A 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>
13 Simple audio multiplexers are driven using gpios, allowing to select which of
17 - $ref: dai-common.yaml#
21 const: simple-audio-mux
23 mux-gpios:
25 GPIOs used to select the input line.
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/openbmc/linux/Documentation/devicetree/bindings/mux/
H A 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:
26 List of gpios used to control the multiplexer, least significant bit first.
28 '#mux-control-cells':
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H A 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,
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/openbmc/linux/drivers/i2c/muxes/
H A Di2c-mux-gpio.c1 // SPDX-License-Identifier: GPL-2.0-only
9 #include <linux/i2c-mux.h>
11 #include <linux/platform_data/i2c-mux-gpio.h>
23 struct gpio_desc **gpios; member
26 static void i2c_mux_gpio_set(const struct gpiomux *mux, unsigned val) in i2c_mux_gpio_set() argument
32 gpiod_set_array_value_cansleep(mux->ngpios, mux->gpios, NULL, values); in i2c_mux_gpio_set()
37 struct gpiomux *mux = i2c_mux_priv(muxc); in i2c_mux_gpio_select() local
39 i2c_mux_gpio_set(mux, chan); in i2c_mux_gpio_select()
46 struct gpiomux *mux = i2c_mux_priv(muxc); in i2c_mux_gpio_deselect() local
48 i2c_mux_gpio_set(mux, mux->data.idle); in i2c_mux_gpio_deselect()
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/openbmc/linux/Documentation/devicetree/bindings/i2c/
H A Di2c-mux-gpio.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/i2c/i2c-mux-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: GPIO-based I2C Bus Mux
10 - Wolfram Sang <wsa@kernel.org>
13 This binding describes an I2C bus multiplexer that uses GPIOs to route the I2C signals.
15 +-----+ +-----+
17 +------------+ +-----+ +-----+
19 | | /--------+--------+
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/openbmc/linux/Documentation/devicetree/bindings/usb/
H A Dgpio-sbu-mux.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/usb/gpio-sbu-mux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: GPIO-based SBU mux
10 - Bjorn Andersson <andersson@kernel.org>
13 In USB Type-C applications the SBU lines needs to be connected, disconnected
21 - enum:
22 - onnn,fsusb43l10x
23 - pericom,pi3usb102
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/openbmc/linux/arch/arm64/boot/dts/mediatek/
H A Dmt7986a-bananapi-bpi-r3.dts1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
5 * Frank Wunderlich <frank-w@public-files.de>
9 /dts-v1/;
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/input/input.h>
12 #include <dt-bindings/leds/common.h>
13 #include <dt-bindings/pinctrl/mt65xx.h>
18 model = "Bananapi BPI-R3";
19 chassis-type = "embedded";
20 compatible = "bananapi,bpi-r3", "mediatek,mt7986a";
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H A Dpumpkin-common.dtsi1 // SPDX-License-Identifier: GPL-2.0
7 #include <dt-bindings/gpio/gpio.h>
16 stdout-path = "serial0:921600n8";
21 compatible = "linaro,optee-tz";
26 gpio-keys {
27 compatible = "gpio-keys";
28 pinctrl-names = "default";
29 pinctrl-0 = <&gpio_keys_default>;
31 key-volume-up {
32 gpios = <&pio 42 GPIO_ACTIVE_LOW>;
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H A Dmt7622-bananapi-bpi-r64.dts5 * SPDX-License-Identifier: (GPL-2.0 OR MIT)
8 /dts-v1/;
9 #include <dt-bindings/input/input.h>
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/leds/common.h>
17 model = "Bananapi BPI-R64";
18 chassis-type = "embedded";
19 compatible = "bananapi,bpi-r64", "mediatek,mt7622";
26 stdout-path = "serial0:115200n8";
32 proc-supply = <&mt6380_vcpu_reg>;
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/openbmc/linux/drivers/net/mdio/
H A Dmdio-mux-gpio.c1 // SPDX-License-Identifier: GPL-2.0
8 #include <linux/mdio-mux.h>
18 struct gpio_descs *gpios; member
33 gpiod_set_array_value_cansleep(s->gpios->ndescs, s->gpios->desc, in mdio_mux_gpio_switch_fn()
34 s->gpios->info, values); in mdio_mux_gpio_switch_fn()
42 struct gpio_descs *gpios; in mdio_mux_gpio_probe() local
45 gpios = devm_gpiod_get_array(&pdev->dev, NULL, GPIOD_OUT_LOW); in mdio_mux_gpio_probe()
46 if (IS_ERR(gpios)) in mdio_mux_gpio_probe()
47 return PTR_ERR(gpios); in mdio_mux_gpio_probe()
49 s = devm_kzalloc(&pdev->dev, sizeof(*s), GFP_KERNEL); in mdio_mux_gpio_probe()
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/openbmc/linux/Documentation/devicetree/bindings/fsi/
H A Dfsi-master-aspeed.txt1 Device-tree bindings for AST2600 FSI master
2 -------------------------------------------
8 - compatible: "aspeed,ast2600-fsi-master"
9 - reg: base address and length
10 - clocks: phandle and clock number
11 - interrupts: platform dependent interrupt description
12 - pinctrl-0: phandle to pinctrl node
13 - pinctrl-names: pinctrl state
16 - cfam-reset-gpios: GPIO for CFAM reset
18 - fsi-routing-gpios: GPIO for setting the FSI mux (internal or cabled)
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H A Dfsi-master-gpio.txt1 Device-tree bindings for gpio-based FSI master driver
2 -----------------------------------------------------
5 - compatible = "fsi-master-gpio";
6 - clock-gpios = <gpio-descriptor>; : GPIO for FSI clock
7 - data-gpios = <gpio-descriptor>; : GPIO for FSI data signal
10 - enable-gpios = <gpio-descriptor>; : GPIO for enable signal
11 - trans-gpios = <gpio-descriptor>; : GPIO for voltage translator enable
12 - mux-gpios = <gpio-descriptor>; : GPIO for pin multiplexing with other
14 - no-gpio-delays; : Don't add extra delays between GPIO
21 fsi-master {
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/openbmc/linux/arch/arm64/boot/dts/rockchip/
H A Drk3326-odroid-go3.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
8 /dts-v1/;
9 #include "rk3326-odroid-go.dtsi"
12 model = "ODROID-GO Super";
13 compatible = "hardkernel,rk3326-odroid-go3", "rockchip,rk3326";
15 joystick_mux_controller: mux-controller {
16 compatible = "gpio-mux";
18 #mux-control-cells = <0>;
20 mux-gpios = <&gpio3 RK_PB3 GPIO_ACTIVE_LOW>,
24 joystick_mux: adc-mux {
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/openbmc/obmc-console/docs/
H A Dmux-support.md1 # Mux Support
3 In some hardware designs, multiple UARTS may be available behind a Mux, which
4 requires obmc-console to select one at a time.
7 a mux. GPIO `UART-MUX-CTL` can be used to select one. This scenario is shown in
8 the [Example Diagram](#example-diagram)
10 Then there will be one obmc-console-server process, and 2 consoles will be
13 The obmc-console-server will receive configuration for both consoles detailing
14 the gpios to be used to control the mux and the values they should have when
18 [design document](https://github.com/openbmc/docs/blob/master/designs/uart-mux-support.md)
22 The kernel will not be aware of this mux and the support can be implemented in
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/openbmc/linux/Documentation/devicetree/bindings/display/msm/
H A Dhdmi.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Rob Clark <robdclark@gmail.com>
16 - qcom,hdmi-tx-8084
17 - qcom,hdmi-tx-8660
18 - qcom,hdmi-tx-8960
19 - qcom,hdmi-tx-8974
20 - qcom,hdmi-tx-8994
21 - qcom,hdmi-tx-8996
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/openbmc/u-boot/arch/arm/dts/
H A Dmt7623n-bananapi-bpi-r2.dts5 * SPDX-License-Identifier: (GPL-2.0 OR MIT)
8 /dts-v1/;
12 model = "Bananapi BPI-R2";
13 compatible = "bananapi,bpi-r2", "mediatek,mt7623";
16 stdout-path = &uart2;
17 tick-timer = &timer0;
20 reg_1p8v: regulator-1p8v {
21 compatible = "regulator-fixed";
22 regulator-name = "fixed-1.8V";
23 regulator-min-microvolt = <1800000>;
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/openbmc/linux/arch/arm64/boot/dts/xilinx/
H A Dzynqmp-zcu100-revC.dts1 // SPDX-License-Identifier: GPL-2.0+
5 * (C) Copyright 2016 - 2022, Xilinx, Inc.
6 * (C) Copyright 2022 - 2023, Advanced Micro Devices, Inc.
12 /dts-v1/;
15 #include "zynqmp-clk-ccf.dtsi"
16 #include <dt-bindings/input/input.h>
17 #include <dt-bindings/interrupt-controller/irq.h>
18 #include <dt-bindings/gpio/gpio.h>
19 #include <dt-bindings/pinctrl/pinctrl-zynqmp.h>
20 #include <dt-bindings/phy/phy.h>
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/openbmc/linux/arch/arm/boot/dts/aspeed/
H A Daspeed-bmc-lenovo-hr630.dts1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright (C) 2019-present Lenovo
8 /dts-v1/;
10 #include "aspeed-g5.dtsi"
11 #include <dt-bindings/gpio/aspeed-gpio.h>
15 compatible = "lenovo,hr630-bmc", "aspeed,ast2500";
29 stdout-path = &uart5;
38 reserved-memory {
39 #address-cells = <1>;
40 #size-cells = <1>;
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/openbmc/linux/Documentation/devicetree/bindings/phy/
H A Dti,tcan104x-can.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/phy/ti,tcan104x-can.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Aswath Govindraju <a-govindraju@ti.com>
14 pattern: "^can-phy"
18 - nxp,tjr1443
19 - ti,tcan1042
20 - ti,tcan1043
22 '#phy-cells':
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