/openbmc/linux/drivers/tty/serial/ |
H A D | serial_mctrl_gpio.c | 1 // SPDX-License-Identifier: GPL-2.0+ 46 * mctrl_gpio_set - set gpios according to mctrl state 47 * @gpios: gpios to set 48 * @mctrl: state to set 50 * Set the gpios according to the mctrl state. 52 void mctrl_gpio_set(struct mctrl_gpios *gpios, unsigned int mctrl) in mctrl_gpio_set() argument 59 if (gpios == NULL) in mctrl_gpio_set() 63 if (gpios->gpio[i] && mctrl_gpio_flags_is_dir_out(i)) { in mctrl_gpio_set() 64 desc_array[count] = gpios->gpio[i]; in mctrl_gpio_set() 74 * mctrl_gpio_to_gpiod - obtain gpio_desc of modem line index [all …]
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H A D | serial_mctrl_gpio.h | 1 /* SPDX-License-Identifier: GPL-2.0+ */ 29 * Opaque descriptor for modem lines controlled by GPIOs 36 * Set state of the modem control output lines via GPIOs. 38 void mctrl_gpio_set(struct mctrl_gpios *gpios, unsigned int mctrl); 41 * Get state of the modem control input lines from GPIOs. 44 unsigned int mctrl_gpio_get(struct mctrl_gpios *gpios, unsigned int *mctrl); 47 * Get state of the modem control output lines from GPIOs. 51 mctrl_gpio_get_outputs(struct mctrl_gpios *gpios, unsigned int *mctrl); 56 struct gpio_desc *mctrl_gpio_to_gpiod(struct mctrl_gpios *gpios, 60 * Request and set direction of modem control line GPIOs and set up irq [all …]
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/openbmc/linux/Documentation/driver-api/gpio/ |
H A D | consumer.rst | 6 it describes the new descriptor-based interface. For a description of the 7 deprecated integer-based GPIO interface please refer to legacy.rst. 10 Guidelines for GPIOs consumers 15 obtain and use GPIOs are available by including the following file:: 23 - Simple compile coverage with e.g. COMPILE_TEST - it does not matter that 27 - Truly optional GPIOLIB support - where the driver does not really make use 28 of the GPIOs on certain compile-time configurations for certain systems, but 29 will use it under other compile-time configurations. In this case the 33 All the functions that work with the descriptor-based GPIO interface are 40 Obtaining and Disposing GPIOs [all …]
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H A D | legacy.rst | 13 A "General Purpose Input/Output" (GPIO) is a flexible software-controlled 18 which GPIOs. Drivers can be written generically, so that board setup code 21 System-on-Chip (SOC) processors heavily rely on GPIOs. In some cases, every 22 non-dedicated pin can be configured as a GPIO; and most chips have at least 24 provide GPIOs; multifunction chips like power managers, and audio codecs 27 Most PC southbridges have a few dozen GPIO-capable pins (with only the BIOS 30 The exact capabilities of GPIOs vary between systems. Common options: 32 - Output values are writable (high=1, low=0). Some chips also have 34 value might be driven ... supporting "wire-OR" and similar schemes 37 - Input values are likewise readable (1, 0). Some chips support readback [all …]
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H A D | board.rst | 5 This document explains how GPIOs can be assigned to given devices and functions. 7 Note that it only applies to the new descriptor-based interface. For a 8 description of the deprecated integer-based GPIO interface please refer to 15 Kconfig. Then, how GPIOs are mapped depends on what the platform uses to 20 ----------- 21 GPIOs can easily be mapped to devices and functions in the device tree. The 22 exact way to do it depends on the GPIO controller providing the GPIOs, see the 25 GPIOs mappings are defined in the consumer device's node, in a property named 26 <function>-gpios, where <function> is the function the driver will request 32 led-gpios = <&gpio 15 GPIO_ACTIVE_HIGH>, /* red */ [all …]
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/openbmc/openbmc/meta-hpe/meta-dl360-g11/recipes-hpe/power-sequencing/files/ |
H A D | gpios-manager.sh | 2 # File which is managing GPIOS when detected. First parameter is which GPIOs that switched 5 …busctl set-property xyz.openbmc_project.Chassis.Gpios /xyz/openbmc_project/chassis/gpios xyz.openb… 12 i2ctransfer -y 3 w4@0x40 0x34 0xbf 0x00 0xe8 14 i2ctransfer -y 3 w4@0x40 0x34 0xbf 0x00 0xe8 16 i2ctransfer -y 3 w4@0x40 0x34 0xbf 0x00 0xe8 18 i2ctransfer -y 3 w4@0x40 0x34 0xbf 0x00 0xe8 20 i2ctransfer -y 3 w4@0x40 0x34 0xbf 0x00 0xe8 22 i2ctransfer -y 3 w4@0x40 0x34 0xbf 0x00 0xe8 24 i2ctransfer -y 3 w4@0x40 0x34 0xbf 0x00 0xe8 26 i2ctransfer -y 3 w4@0x40 0x34 0xbf 0x00 0xe8 [all …]
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H A D | power-button.sh | 2 # File which is managing GPIOS when detected. First parameter is which GPIOs that switched 5 …busctl set-property xyz.openbmc_project.Chassis.Gpios /xyz/openbmc_project/chassis/gpios xyz.openb… 9 …busctl set-property xyz.openbmc_project.Chassis.Gpios /xyz/openbmc_project/chassis/gpios xyz.openb…
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/openbmc/linux/drivers/staging/olpc_dcon/ |
H A D | olpc_dcon_xo_1.c | 1 // SPDX-License-Identifier: GPL-2.0 5 * Copyright © 2006-2007 Red Hat, Inc. 6 * Copyright © 2006-2007 Advanced Micro Devices, Inc. 37 static struct gpio_desc *gpios[5]; variable 46 gpios[i] = devm_gpiod_get(&dcon->client->dev, pin[i].name, in dcon_init_xo_1() 48 if (IS_ERR(gpios[i])) { in dcon_init_xo_1() 49 ret = PTR_ERR(gpios[i]); in dcon_init_xo_1() 64 * this is because OFW will disable input for the pin and set a value.. in dcon_init_xo_1() 66 * then a value is set. So, future readings of the pin can use in dcon_init_xo_1() 69 dcon->curr_src = cs5535_gpio_isset(OLPC_GPIO_DCON_LOAD, GPIO_OUTPUT_VAL) in dcon_init_xo_1() [all …]
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/openbmc/openbmc/meta-hpe/meta-rl300-g11/recipes-hpe/power-sequencing/files/ |
H A D | power-button.sh | 2 # File which is managing GPIOS when detected. First parameter is which GPIOs that switched 5 …busctl set-property xyz.openbmc_project.Chassis.Gpios /xyz/openbmc_project/chassis/gpios xyz.openb… 9 …busctl set-property xyz.openbmc_project.Chassis.Gpios /xyz/openbmc_project/chassis/gpios xyz.openb…
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H A D | gpios-manager.sh | 2 # File which is managing GPIOS when detected. First parameter is which GPIOs that switched 7 …busctl set-property xyz.openbmc_project.Chassis.Gpios /xyz/openbmc_project/chassis/gpios xyz.openb… 8 smproStatus=$(lsmod | grep smpro-mfd) 12 # We need to wait for the SoC to be ready to communicate - We just received the PGOOD signal 26 max_retry=$(( max_retry - 1)) 34 i2ctransfer -y 3 w4@0x40 0x34 0xbf 0x00 0xe8 35 i2ctransfer -y 3 w2@0x40 0x34 0xa7 r1 38 i2ctransfer -y 3 w4@0x40 0x34 0xbf 0x00 0xe8 39 i2ctransfer -y 3 w2@0x40 0x34 0xa7 r1 42 i2ctransfer -y 3 w4@0x40 0x34 0xbf 0x00 0xe8 [all …]
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/openbmc/u-boot/include/asm-generic/ |
H A D | gpio.h | 1 /* SPDX-License-Identifier: GPL-2.0+ */ 15 * Generic GPIO API for U-Boot 17 * -- 20 * - gpio_request_by_name() 21 * - dm_gpio_get_value() etc. 24 * -- 26 * GPIOs are numbered from 0 to GPIO_COUNT-1 which value is defined 30 * be read as 0 or 1. If an output then its value can be set to 0 or 1. 33 * back the value of the output that you previously set. 38 * an error value of -1. [all …]
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/openbmc/u-boot/arch/arm/dts/ |
H A D | r8a7793-gose.dts | 1 // SPDX-License-Identifier: GPL-2.0 5 * Copyright (C) 2014-2015 Renesas Electronics Corporation 9 * SSI-AK4643 17 * amixer set "LINEOUT Mixer DACL" on 18 * amixer set "DVC Out" 100% 19 * amixer set "DVC In" 100% 23 * amixer set "DVC Out Mute" on 24 * amixer set "DVC In Mute" on 28 * amixer set "DVC Out Ramp Up Rate" "0.125 dB/64 steps" 29 * amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps" [all …]
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H A D | r8a7791-koelsch.dts | 1 // SPDX-License-Identifier: GPL-2.0 6 * Copyright (C) 2013-2014 Renesas Solutions Corp. 11 * SSI-AK4643 19 * amixer set "LINEOUT Mixer DACL" on 20 * amixer set "DVC Out" 100% 21 * amixer set "DVC In" 100% 25 * amixer set "DVC Out Mute" on 26 * amixer set "DVC In Mute" on 30 * amixer set "DVC Out Ramp Up Rate" "0.125 dB/64 steps" 31 * amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps" [all …]
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/openbmc/linux/arch/arm/boot/dts/renesas/ |
H A D | r8a7793-gose.dts | 1 // SPDX-License-Identifier: GPL-2.0 5 * Copyright (C) 2014-2015 Renesas Electronics Corporation 9 * SSI-AK4643 17 * amixer set "LINEOUT Mixer DACL" on 18 * amixer set "DVC Out" 100% 19 * amixer set "DVC In" 100% 23 * amixer set "DVC Out Mute" on 24 * amixer set "DVC In Mute" on 28 * amixer set "DVC Out Ramp Up Rate" "0.125 dB/64 steps" 29 * amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps" [all …]
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H A D | r8a7791-koelsch.dts | 1 // SPDX-License-Identifier: GPL-2.0 6 * Copyright (C) 2013-2014 Renesas Solutions Corp. 11 * SSI-AK4643 19 * amixer set "LINEOUT Mixer DACL" on 20 * amixer set "DVC Out" 100% 21 * amixer set "DVC In" 100% 25 * amixer set "DVC Out Mute" on 26 * amixer set "DVC In Mute" on 30 * amixer set "DVC Out Ramp Up Rate" "0.125 dB/64 steps" 31 * amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps" [all …]
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H A D | r8a7742-iwg21d-q7.dts | 1 // SPDX-License-Identifier: GPL-2.0 3 * Device Tree Source for the iWave-RZ/G1H Qseven board 9 * SSI-SGTL5000 13 * amixer set "DVC Out" 100% 14 * amixer set "DVC In" 100% 18 * amixer set "DVC Out Mute" on 19 * amixer set "DVC In Mute" on 23 * amixer set "DVC Out Ramp Up Rate" "0.125 dB/64 steps" 24 * amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps" 25 * amixer set "DVC Out Ramp" on [all …]
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/openbmc/linux/Documentation/devicetree/bindings/iio/proximity/ |
H A D | devantech-srf04.yaml | 1 # SPDX-License-Identifier: GPL-2.0 3 --- 4 $id: http://devicetree.org/schemas/iio/proximity/devantech-srf04.yaml# 5 $schema: http://devicetree.org/meta-schemas/core.yaml# 10 - Andreas Klinger <ak@it-klinger.de> 13 Bit-banging driver using two GPIOs: 14 - trigger-gpio is raised by the driver to start sending out an ultrasonic 16 - echo-gpio is held high by the sensor after sending ultrasonic burst 20 https://www.robot-electronics.co.uk/htm/srf04tech.htm 22 https://www.maxbotix.com/documents/LV-MaxSonar-EZ_Datasheet.pdf [all …]
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/openbmc/linux/Documentation/devicetree/bindings/i2c/ |
H A D | i2c-mux-gpio.yaml | 1 # 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 | | /--------+--------+ [all …]
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/openbmc/linux/Documentation/devicetree/bindings/hwmon/ |
H A D | gpio-fan.txt | 4 - compatible : "gpio-fan" 7 - gpios: Specifies the pins that map to bits in the control value, 8 ordered MSB-->LSB. 9 - gpio-fan,speed-map: A mapping of possible fan RPM speeds and the 10 control value that should be set to achieve them. This array 12 - alarm-gpios: This pin going active indicates something is wrong with 14 - #cooling-cells: If used as a cooling device, must be <2> 16 Documentation/devicetree/bindings/thermal/thermal-cooling-devices.yaml 17 min and max states are derived from the speed-map of the fan. 19 Note: At least one the "gpios" or "alarm-gpios" properties must be set. [all …]
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/openbmc/u-boot/doc/device-tree-bindings/gpio/ |
H A D | gpio.txt | 4 1) gpios property 5 ----------------- 7 Nodes that makes use of GPIOs should specify them using one or more 8 properties, each containing a 'gpio-list': 10 gpio-list ::= <single-gpio> [gpio-list] 11 single-gpio ::= <gpio-phandle> <gpio-specifier> 12 gpio-phandle : phandle to gpio controller node 13 gpio-specifier : Array of #gpio-cells specifying specific gpio 16 GPIO properties should be named "[<name>-]gpios", with <name> being the purpose 17 of this GPIO for the device. While a non-existent <name> is considered valid [all …]
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/openbmc/linux/Documentation/devicetree/bindings/gpio/ |
H A D | gpio.txt | 4 1) gpios property 5 ----------------- 7 GPIO properties should be named "[<name>-]gpios", with <name> being the purpose 8 of this GPIO for the device. While a non-existent <name> is considered valid 9 for compatibility reasons (resolving to the "gpios" property), it is not allowed 10 for new bindings. Also, GPIO properties named "[<name>-]gpio" are valid and old 15 cases should they contain more than one. If your device uses several GPIOs with 17 meaningful name. The only case where an array of GPIOs is accepted is when 18 several GPIOs serve the same function (e.g. a parallel data line). 20 The exact purpose of each gpios property must be documented in the device tree [all …]
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/openbmc/linux/sound/soc/ |
H A D | soc-jack.c | 1 // SPDX-License-Identifier: GPL-2.0+ 3 // soc-jack.c -- ALSA SoC jack handling 21 * snd_soc_jack_report - Report the current status for a jack 40 if (!jack || !jack->jack) in snd_soc_jack_report() 44 dapm = &jack->card->dapm; in snd_soc_jack_report() 46 mutex_lock(&jack->mutex); in snd_soc_jack_report() 48 jack->status &= ~mask; in snd_soc_jack_report() 49 jack->status |= status & mask; in snd_soc_jack_report() 53 list_for_each_entry(pin, &jack->pins, list) { in snd_soc_jack_report() 54 int enable = pin->mask & jack->status; in snd_soc_jack_report() [all …]
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/openbmc/linux/drivers/bus/ |
H A D | ts-nbus.c | 1 // SPDX-License-Identifier: GPL-2.0-only 3 * NBUS driver for TS-4600 based boards 5 * Copyright (c) 2016 - Savoir-faire Linux 8 * This driver implements a GPIOs bit-banged bus, called the NBUS by Technologic 10 * TS-4600 SoM. 21 #include <linux/ts-nbus.h> 40 * request all gpios required by the bus. 45 ts_nbus->data = devm_gpiod_get_array(&pdev->dev, "ts,data", in ts_nbus_init_pdata() 47 if (IS_ERR(ts_nbus->data)) { in ts_nbus_init_pdata() 48 dev_err(&pdev->dev, "failed to retrieve ts,data-gpio from dts\n"); in ts_nbus_init_pdata() [all …]
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/openbmc/u-boot/drivers/gpio/ |
H A D | Kconfig | 14 particular GPIOs that they provide. The uclass interface 15 is defined in include/asm-generic/gpio.h. 24 is a mechanism providing automatic GPIO request and config- 25 uration as part of the gpio-controller's driver probe function. 34 is a mechanism providing automatic GPIO request and config- 35 uration as part of the gpio-controller's driver probe function. 64 lines. Each I/O line may be dedicated as a general-purpose 68 responsible for the general-purpose I/O. 96 GPIO feature set. The difference is large enough to merit a separate 98 95 GPIOs which can be configured from the device tree. [all …]
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/openbmc/linux/Documentation/devicetree/bindings/serial/ |
H A D | st,stm32-uart.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 3 --- 4 $id: http://devicetree.org/schemas/serial/st,stm32-uart.yaml# 5 $schema: http://devicetree.org/meta-schemas/core.yaml# 8 - Erwan Le Ray <erwan.leray@foss.st.com> 15 - st,stm32-uart 16 - st,stm32f7-uart 17 - st,stm32h7-uart 34 st,hw-flow-ctrl: 38 rx-tx-swap: true [all …]
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