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/openbmc/linux/Documentation/devicetree/bindings/usb/
H A Dsmsc,usb3503.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: SMSC USB3503 High-Speed Hub Controller
10 - Dongjin Kim <tobetter@gmail.com>
15 - smsc,usb3503
16 - smsc,usb3503a
17 - smsc,usb3803
22 connect-gpios:
25 GPIO for connect
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/openbmc/qemu/include/hw/
H A Dqdev-core.h22 * -----------
31 * information to the caller and must be re-entrant.
57 * ---------------
62 * DeviceListener can save the QOpts passed to it for re-using it
73 DEV_NVECTORS_UNSPECIFIED = -1,
101 * struct DeviceClass - The base class for all devices.
107 * @sync_config: Callback function invoked when QMP command device-sync-config
136 * ensures a compile-time error if someone attempts to assign
137 * dc->props directly.
142 * @user_creatable: Can user instantiate with -device / device_add?
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/openbmc/linux/Documentation/driver-api/gpio/
H A Ddrivers-on-gpio.rst6 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,
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
20 - gpio-keys-polled: drivers/input/keyboard/gpio_keys_polled.c is used when your
24 - gpio_mouse: drivers/input/mouse/gpio_mouse.c is used to provide a mouse with
25 up to three buttons by simply using GPIOs and no mouse port. You can cut the
26 mouse cable and connect the wires to GPIO lines or solder a mouse connector
29 - gpio-beeper: drivers/input/misc/gpio-beeper.c is used to provide a beep from
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H A Dintro.rst10 GPIOs in drivers, and how to write a driver for a device that provides GPIOs
14 ways to obtain and use GPIOs:
16 - The descriptor-based interface is the preferred way to manipulate GPIOs,
18 - The legacy integer-based interface which is considered deprecated (but still
21 The remainder of this document applies to the new descriptor-based interface.
23 integer-based interface.
29 A "General Purpose Input/Output" (GPIO) is a flexible software-controlled
34 which GPIOs. Drivers can be written generically, so that board setup code
37 System-on-Chip (SOC) processors heavily rely on GPIOs. In some cases, every
38 non-dedicated pin can be configured as a GPIO; and most chips have at least
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/openbmc/linux/Documentation/admin-guide/media/
H A Dcec.rst1 .. SPDX-License-Identifier: GPL-2.0
12 - Exynos4
13 - Exynos5
14 - STIH4xx HDMI CEC
15 - V4L2 adv7511 (same HW, but a different driver from the drm adv7511)
16 - stm32
17 - Allwinner A10 (sun4i)
18 - Raspberry Pi
19 - dw-hdmi (Synopsis IP)
20 - amlogic (meson ao-cec and ao-cec-g12a)
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/openbmc/linux/arch/arm/boot/dts/microchip/
H A Dat91-sama5d4ek.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
3 * at91-sama5d4ek.dts - Device Tree file for SAMA5D4 Evaluation Kit
8 /dts-v1/;
12 model = "Atmel SAMA5D4-EK";
16 stdout-path = "serial0:115200n8";
25 clock-frequency = <32768>;
29 clock-frequency = <12000000>;
36 pinctrl-names = "default";
37 pinctrl-0 = <
45 /* The vref depends on JP22 of EK. If connect 1-2 then use 3.3V. connect 2-3 use 3.0V */
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H A Dat91-wb50n.dtsi1 // SPDX-License-Identifier: GPL-2.0
3 * at91-wb50n.dtsi - Device Tree include file for wb50n cpu module
12 model = "Laird Workgroup Bridge 50N - Atmel SAMA5D";
17 stdout-path = "serial0:115200n8";
38 clock-frequency = <32768>;
42 clock-frequency = <12000000>;
46 atmel,osc-bypass;
50 pinctrl-names = "default";
51 pinctrl-0 = <&pinctrl_mmc0_clk_cmd_dat0 &pinctrl_mmc0_dat1_3 &pinctrl_mmc0_cd>;
52 cd-gpios = <&pioC 26 GPIO_ACTIVE_LOW>;
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/openbmc/linux/arch/arm/boot/dts/marvell/
H A Ddove-cubox.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
20 compatible = "gpio-leds";
21 pinctrl-0 = <&pmx_gpio_18>;
22 pinctrl-names = "default";
24 led-power {
26 gpios = <&gpio0 18 1>;
27 default-state = "keep";
31 usb_power: regulator-1 {
32 compatible = "regulator-fixed";
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/openbmc/linux/Documentation/devicetree/bindings/net/wireless/
H A Dmicrochip,wilc1000.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Adham Abozaeid <adham.abozaeid@microchip.com>
11 - Ajay Singh <ajay.kathat@microchip.com>
15 describes the binding to connect wilc devices.
30 clock-names:
33 enable-gpios:
35 description: Used by wilc1000-spi to determine the GPIO line
36 connected to the ENABLE line. If specified, reset-gpios
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/openbmc/linux/arch/arm64/boot/dts/renesas/
H A Dsalvator-xs.dtsi1 // SPDX-License-Identifier: GPL-2.0
3 * Device Tree Source for the Salvator-X 2nd version board
5 * Copyright (C) 2015-2017 Renesas Electronics Corp.
8 #include "salvator-common.dtsi"
11 model = "Renesas Salvator-X 2nd version board";
12 compatible = "renesas,salvator-xs";
16 clock-frequency = <16640000>;
20 clock-frequency = <400000>;
22 versaclock6: clock-generator@6a {
25 #clock-cells = <1>;
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H A Dulcb-kf.dtsi1 // SPDX-License-Identifier: GPL-2.0
18 #clock-cells = <0>;
19 compatible = "gpio-mux-clock";
21 select-gpios = <&gpio_exp_75 13 GPIO_ACTIVE_HIGH>;
24 hdmi1-out {
25 compatible = "hdmi-connector";
30 remote-endpoint = <&adv7513_out>;
35 accel_3v3: regulator-acc-3v3 {
36 compatible = "regulator-fixed";
37 regulator-name = "accel-3v3";
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/openbmc/linux/Documentation/devicetree/bindings/net/
H A Dsmsc,lan91c111.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Smart Mixed-Signal Connectivity (SMSC) LAN91C9x/91C1xx Controller
10 - Nicolas Pitre <nico@fluxnic.net>
13 - $ref: ethernet-controller.yaml#
25 reg-shift: true
27 reg-io-width:
31 reset-gpios:
35 power-gpios:
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/openbmc/u-boot/arch/arm/dts/
H A Dat91-sama5d4ek.dts2 * at91-sama5d4ek.dts - Device Tree file for SAMA5D4 Evaluation Kit
7 * This file is dual-licensed: you can use it either under the terms
45 /dts-v1/;
49 model = "Atmel SAMA5D4-EK";
57 u-boot,dm-pre-reloc;
58 stdout-path = &usart3;
68 clock-frequency = <32768>;
72 clock-frequency = <12000000>;
79 atmel,vl-bpix = <4>;
80 atmel,output-mode = <18>;
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/openbmc/linux/Documentation/devicetree/bindings/iio/magnetometer/
H A Dyamaha,yas530.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Linus Walleij <linus.walleij@linaro.org>
13 The Yamaha YAS530 magnetometers is a line of 3-axis magnetometers
20 pattern: '^magnetometer@[0-9a-f]+$'
24 - enum:
25 - yamaha,yas530
26 - yamaha,yas532
27 - yamaha,yas533
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/openbmc/u-boot/arch/arm/mach-rockchip/rk3288/
H A DKconfig4 bool "Google/Rockchip Veyron-Jerry Chromebook"
7 Jerry is a RK3288-based clamshell device with 2 USB 3.0 ports,
8 HDMI, an 11.9 inch EDP display, micro-SD card, touchpad and
9 WiFi. It includes a Chrome OS EC (Cortex-M3) to provide access to
13 bool "Google/Rockchip Veyron-Mickey Chromebit"
16 Mickey is a small RK3288-based device with one USB 3.0 port, HDMI
17 and WiFi. It has a separate power port and is designed to connect
23 bool "Google/Rockchip Veyron-Minnie Chromebook"
26 Minnie is a RK3288-based convertible clamshell device with 2 USB 3.0
27 ports, micro HDMI, a 10.1-inch 1280x800 EDP display, micro-SD card,
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/openbmc/linux/Documentation/devicetree/bindings/display/tilcdc/
H A Dpanel.txt1 Device-Tree bindings for tilcdc DRM generic panel output driver
4 - compatible: value should be "ti,tilcdc,panel".
5 - panel-info: configuration info to configure LCDC correctly for the panel
6 - ac-bias: AC Bias Pin Frequency
7 - ac-bias-intrpt: AC Bias Pin Transitions per Interrupt
8 - dma-burst-sz: DMA burst size
9 - bpp: Bits per pixel
10 - fdd: FIFO DMA Request Delay
11 - sync-edge: Horizontal and Vertical Sync Edge: 0=rising 1=falling
12 - sync-ctrl: Horizontal and Vertical Sync: Control: 0=ignore
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/openbmc/u-boot/drivers/i2c/muxes/
H A DKconfig20 bool "GPIO-based I2C arbitration"
24 I2C multimaster arbitration scheme using GPIOs and a challenge &
34 partitioning I2C bus and connect multiple devices with the same address
39 tristate "GPIO-based I2C multiplexer"
/openbmc/u-boot/drivers/gpio/
H A DKconfig14 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.
98 95 GPIOs which can be configured from the device tree.
118 This driver supports CREG GPIOs on Synopsys HSDK SOC.
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/openbmc/linux/arch/arm/boot/dts/st/
H A Dstm32f429-disco.dts2 * Copyright 2015 - Maxime Coquelin <mcoquelin.stm32@gmail.com>
4 * This file is dual-licensed: you can use it either under the terms
22 * MA 02110-1301 USA
48 /dts-v1/;
50 #include "stm32f429-pinctrl.dtsi"
51 #include <dt-bindings/input/input.h>
52 #include <dt-bindings/interrupt-controller/irq.h>
53 #include <dt-bindings/gpio/gpio.h>
56 model = "STMicroelectronics STM32F429i-DISCO board";
57 compatible = "st,stm32f429i-disco", "st,stm32f429";
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/openbmc/obmc-console/docs/
H A Dmux-support.md4 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)
34 The configuration is similar to i2c-mux-gpio in the linux kernel.
36 The order of GPIOs listed in 'mux-gpios' forms the LSB-first bit representation
37 of an N-bit number that is taken from 'mux-index'.
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/openbmc/linux/Documentation/devicetree/bindings/spi/
H A Dspi-davinci.txt4 Keystone 2 - https://www.ti.com/lit/ug/sprugp2a/sprugp2a.pdf
5 dm644x - https://www.ti.com/lit/ug/sprue32a/sprue32a.pdf
6 OMAP-L138/da830 - http://www.ti.com/lit/ug/spruh77a/spruh77a.pdf
9 - #address-cells: number of cells required to define a chip select
11 - #size-cells: should be zero.
12 - compatible:
13 - "ti,dm6441-spi" for SPI used similar to that on DM644x SoC family
14 - "ti,da830-spi" for SPI used similar to that on DA8xx SoC family
15 - "ti,keystone-spi" for SPI used similar to that on Keystone2 SoC
17 - reg: Offset and length of SPI controller register space
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/openbmc/linux/arch/arm/boot/dts/qcom/
H A Dqcom-mdm9615-wp8548-mangoh-green.dts1 // SPDX-License-Identifier: GPL-2.0+ OR MIT
9 #include <dt-bindings/input/input.h>
11 #include "qcom-mdm9615-wp8548.dtsi"
12 #include <dt-bindings/interrupt-controller/irq.h>
13 #include <dt-bindings/gpio/gpio.h>
17 compatible = "swir,mangoh-green-wp8548", "swir,wp8548", "qcom,mdm9615";
28 stdout-path = "serial1:115200n8";
34 * - 2 : GPIOEXP_INT2
35 * - 7 : IOT1_GPIO2
36 * - 8 : IOT0_GPIO4
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/openbmc/u-boot/board/samsung/arndale/
H A Darndale.c1 // SPDX-License-Identifier: GPL-2.0+
18 /* Configure gpios for usb 3503 hub: in board_usb_init()
19 * disconnect, toggle reset and connect in board_usb_init()
35 gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL); in board_init()
46 gd->ram_size += get_ram_size((long *)addr, SDRAM_BANK_SIZE); in dram_init()
66 gd->bd->bi_dram[i].start = addr; in dram_init_banksize()
67 gd->bd->bi_dram[i].size = size; in dram_init_banksize()
78 ret = exynos_dwmmc_init(gd->fdt_blob); in board_mmc_init()
94 (uart_id - PERIPH_ID_UART0)); in board_uart_init()
/openbmc/linux/arch/arm/boot/dts/nxp/imx/
H A Dimx6q-bosch-acc.dts1 // SPDX-License-Identifier: GPL-2.0
3 * Support for the i.MX6-based Bosch ACC board.
8 * Copyright (C) 2019-2021 Bosch Thermotechnik GmbH, Matthias Winker <matthias.winker@bosch.com>
12 /dts-v1/;
14 #include <dt-bindings/gpio/gpio.h>
15 #include <dt-bindings/leds/common.h>
20 compatible = "bosch,imx6q-acc", "fsl,imx6q";
37 backlight_lvds: backlight-lvds {
38 compatible = "pwm-backlight";
40 brightness-levels = <0 61 499 1706 4079 8022 13938 22237 33328 47623 65535>;
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/openbmc/linux/arch/arm/boot/dts/allwinner/
H A Dsun8i-a83t-cubietruck-plus.dts2 * Copyright 2015 Chen-Yu Tsai
4 * Chen-Yu Tsai <wens@csie.org>
6 * This file is dual-licensed: you can use it either under the terms
45 /dts-v1/;
46 #include "sun8i-a83t.dtsi"
48 #include <dt-bindings/gpio/gpio.h>
52 compatible = "cubietech,cubietruck-plus", "allwinner,sun8i-a83t";
60 stdout-path = "serial0:115200n8";
63 hdmi-connector {
64 compatible = "hdmi-connector";
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