/linux-6.12.1/Documentation/devicetree/bindings/sound/ |
D | mt6359.yaml | 1 # SPDX-License-Identifier: GPL-2.0 3 --- 5 $schema: http://devicetree.org/meta-schemas/core.yaml# 10 - Eason Yen <eason.yen@mediatek.com> 11 - Jiaxin Yu <jiaxin.yu@mediatek.com> 12 - Shane Chien <shane.chien@mediatek.com> 20 mediatek,dmic-mode: 23 Indicates how many data pins are used to transmit two channels of PDM 24 signal. 0 means two wires, 1 means one wire. Default value is 0. 26 - 0 # one wire [all …]
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D | mediatek,mt8365-afe.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 3 --- 4 $id: http://devicetree.org/schemas/sound/mediatek,mt8365-afe.yaml# 5 $schema: http://devicetree.org/meta-schemas/core.yaml# 10 - Alexandre Mergnat <amergnat@baylibre.com> 14 const: mediatek,mt8365-afe-pcm 19 "#sound-dai-cells": 24 - description: 26M clock 25 - description: mux for audio clock 26 - description: audio i2s0 mck [all …]
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D | mt6358.txt | 10 - compatible - "string" - One of: 11 "mediatek,mt6358-sound" 12 "mediatek,mt6366-sound" 13 - Avdd-supply : power source of AVDD 16 - mediatek,dmic-mode : Indicates how many data pins are used to transmit two 17 channels of PDM signal. 0 means two wires, 1 means one wire. Default 23 compatible = "mediatek,mt6358-sound"; 24 Avdd-supply = <&mt6358_vaud28_reg>; 25 mediatek,dmic-mode = <0>;
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/linux-6.12.1/Documentation/devicetree/bindings/input/touchscreen/ |
D | fsl-mx25-tcq.txt | 7 - compatible: Should be "fsl,imx25-tcq". 8 - reg: Memory range of the device. 9 - interrupts: Should be the interrupt number associated with this module within 11 - fsl,wires: Should be '<4>' or '<5>' 14 - fsl,pen-debounce-ns: Pen debounce time in nanoseconds. 15 - fsl,pen-threshold: Pen-down threshold for the touchscreen. This is a value 20 - fsl,settling-time-ns: Settling time in nanoseconds. The settling time is before 24 This device includes two conversion queues which can be added as subnodes. 29 compatible = "fsl,imx25-tcq"; 31 interrupt-parent = <&tscadc>; [all …]
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/linux-6.12.1/Documentation/driver-api/gpio/ |
D | drivers-on-gpio.rst | 6 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 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 31 off/on, for an actual PWM waveform, see pwm-gpio below.) [all …]
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/linux-6.12.1/Documentation/driver-api/ |
D | spi.rst | 6 multiplexed shift register. Its three signal wires hold a clock (SCK, 7 often in the range of 1-20 MHz), a "Master Out, Slave In" (MOSI) data 12 additional chipselect line is usually active-low (nCS); four signals are 22 The programming interface is structured around two kinds of driver, and 23 two kinds of device. A "Controller Driver" abstracts the controller 33 board-specific initialization code. A :c:type:`struct spi_driver 46 .. kernel-doc:: include/linux/spi/spi.h 49 .. kernel-doc:: drivers/spi/spi.c 52 .. kernel-doc:: drivers/spi/spi.c
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D | edac.rst | 5 ---------------------------------------- 8 *sockets, *socket sets*, *banks*, *rows*, *chip-select rows*, *channels*, 43 It is typically the highest hierarchy on a Fully-Buffered DIMM memory 44 controller. Typically, it contains two channels. Two channels at the 49 is calculated using two DIMMs instead of one. Due to that, it is capable 52 * Single-channel 55 only. E. g. if the data is 64 bits-wide, the data flows to the CPU using 57 memories. FB-DIMM and RAMBUS use a different concept for channel, so 60 * Double-channel 62 The data size accessed by the memory controller is interlaced into two [all …]
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D | xillybus.rst | 10 - Introduction 11 -- Background 12 -- Xillybus Overview 14 - Usage 15 -- User interface 16 -- Synchronization 17 -- Seekable pipes 19 - Internals 20 -- Source code organization 21 -- Pipe attributes [all …]
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/linux-6.12.1/Documentation/devicetree/bindings/media/i2c/ |
D | aptina,mt9v111.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 3 --- 5 $schema: http://devicetree.org/meta-schemas/core.yaml# 10 - Jacopo Mondi <jacopo@jmondi.org> 13 The Aptina MT9V111 is a 1/4-Inch VGA-format digital image sensor with a core 17 of image resolutions and formats controllable through a simple two-wires 30 enable-gpios: 34 standby-gpios: 39 reset-gpios: 49 - compatible [all …]
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/linux-6.12.1/Documentation/input/devices/ |
D | rotary-encoder.rst | 2 rotary-encoder - a generic driver for GPIO connected devices 8 -------- 11 peripherals with two wires. The outputs are phase-shifted by 90 degrees 16 a stable state with both outputs high (half-period mode) and some have 17 a stable state in all steps (quarter-period mode). 19 The phase diagram of these two outputs look like this:: 33 |<-------->| 36 |<-->| 37 one step (half-period mode) 40 one step (quarter-period mode) [all …]
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D | joystick-parport.rst | 3 .. _joystick-parport: 9 :Copyright: |copy| 1998-2000 Vojtech Pavlik <vojtech@ucw.cz> 10 :Copyright: |copy| 1998 Andree Borrmann <a.borrmann@tu-bs.de> 18 Any information in this file is provided as-is, without any guarantee that 36 Many console and 8-bit computer gamepads and joysticks are supported. The 40 ------------ 59 for your pads, use either keyboard or joystick port, and make a pass-through 69 (pin 9) -----> Power 74 port), and combine the currents of two or more data bits together:: 77 (pin 9) ----|>|-------+------> Power [all …]
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/linux-6.12.1/arch/arm/mach-omap1/ |
D | devices.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later 3 * linux/arch/arm/mach-omap1/devices.c 8 #include <linux/dma-mapping.h> 15 #include <linux/platform_data/omap-wd-timer.h> 16 #include <linux/soc/ti/omap1-io.h> 51 .id = -1, 64 /*-------------------------------------------------------------------------*/ 81 if (mmc_controller->slots[0].wires == 4) { in omap1_mmc_mux() 84 if (!mmc_controller->slots[0].nomux) in omap1_mmc_mux() 92 if (!mmc_controller->slots[1].nomux) { in omap1_mmc_mux() [all …]
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/linux-6.12.1/drivers/input/mouse/ |
D | vsxxxaa.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later 3 * Driver for DEC VSXXX-AA mouse (hockey-puck mouse, ball or two rollers) 4 * DEC VSXXX-GA mouse (rectangular mouse, with ball) 5 * DEC VSXXX-AB tablet (digitizer with hair cross or stylus) 7 * Copyright (C) 2003-2004 by Jan-Benedict Glaw <jbglaw@lug-owl.de> 24 * supply at +5V and -12V. 30 * | 4 --- 3 | 32 * ------- 35 * 1 (GND) 5 7 - 36 * 2 (RxD) 2 3 - [all …]
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/linux-6.12.1/Documentation/w1/ |
D | w1-generic.rst | 2 Introduction to the 1-wire (w1) subsystem 5 The 1-wire bus is a simple master-slave bus that communicates via a single 6 signal wire (plus ground, so two wires). 18 - DS9490 usb device 19 - W1-over-GPIO 20 - DS2482 (i2c to w1 bridge) 21 - Emulated devices, such as a RS232 converter, parallel port adapter, etc 25 ------------------------------ 29 - sysfs entries for that w1 master are created 30 - the w1 bus is periodically searched for new slave devices [all …]
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/linux-6.12.1/drivers/gpio/ |
D | gpio-xtensa.c | 1 // SPDX-License-Identifier: GPL-2.0 14 * driver treats input and output states as two distinct devices. 24 * different set of IO wires. A theoretical SMP aware version of this driver 127 .base = -1, 136 .base = -1, 155 .name = "xtensa-gpio", 164 pdev = platform_device_register_simple("xtensa-gpio", 0, NULL, 0); in xtensa_gpio_init()
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/linux-6.12.1/Documentation/admin-guide/media/ |
D | cec.rst | 1 .. 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) [all …]
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/linux-6.12.1/drivers/auxdisplay/ |
D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0 4 # see Documentation/kbuild/kconfig-language.rst. 25 This is the base system for character-based LCD displays. 67 Say Y here if you have an HD44780 or KS-0074 LCD connected to your 68 parallel port. This driver also features 4 and 6-key keypads. The LCD 83 and LCD are connected to two separate ports, you have to start two 88 int "Default panel profile (0-5, 0=custom)" 99 2 = 2x16 serial LCD (KS-0074), new keypad 119 2 : new 6 keys keypad, as used on the server at www.ant-computing.com 140 3 : 2x16 serial LCD (KS-0074 based) [all …]
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/linux-6.12.1/drivers/spi/ |
D | spi-sprd.c | 1 // SPDX-License-Identifier: GPL-2.0 6 #include <linux/dma-mapping.h> 7 #include <linux/dma/sprd-dma.h> 179 u32 size = t->bits_per_word * SPRD_SPI_FIFO_SIZE; in sprd_spi_transfer_max_timeout() 180 u32 bit_time_us = DIV_ROUND_UP(USEC_PER_SEC, ss->hw_speed_hz); in sprd_spi_transfer_max_timeout() 186 u32 interval_cycle = SPRD_SPI_FIFO_SIZE * ss->word_delay; in sprd_spi_transfer_max_timeout() 188 ss->src_clk); in sprd_spi_transfer_max_timeout() 199 ret = readl_relaxed_poll_timeout(ss->base + SPRD_SPI_INT_RAW_STS, val, in sprd_spi_wait_for_tx_end() 202 dev_err(ss->dev, "SPI error, spi send timeout!\n"); in sprd_spi_wait_for_tx_end() 206 ret = readl_relaxed_poll_timeout(ss->base + SPRD_SPI_STS2, val, in sprd_spi_wait_for_tx_end() [all …]
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/linux-6.12.1/arch/arm/mach-omap2/ |
D | board-n8x0.c | 1 // SPDX-License-Identifier: GPL-2.0-only 3 * linux/arch/arm/mach-omap2/board-n8x0.c 5 * Copyright (C) 2005-2009 Nokia Corporation 8 * Modified from mach-omap2/board-generic.c 23 #include <linux/platform_data/spi-omap2-mcspi.h> 24 #include <linux/platform_data/mmc-omap.h> 28 #include <asm/mach-types.h> 32 #include "usb-tusb6010.h" 34 #include "common-board-devices.h" 56 else if (of_machine_is_compatible("nokia,n810-wimax")) in board_check_revision() [all …]
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/linux-6.12.1/Documentation/spi/ |
D | spi-summary.rst | 5 02-Feb-2012 8 ------------ 14 The three signal wires hold a clock (SCK, often on the order of 10 MHz), 17 clocking modes through which data is exchanged; mode-0 and mode-3 are most 23 device, so those three signal wires may be connected to several chips 32 - SPI may be used for request/response style device protocols, as with 35 - It may also be used to stream data in either direction (half duplex), 38 - Some devices may use eight bit words. Others may use different word 39 lengths, such as streams of 12-bit or 20-bit digital samples. 41 - Words are usually sent with their most significant bit (MSB) first, [all …]
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/linux-6.12.1/arch/arm64/boot/dts/mediatek/ |
D | mt6358.dtsi | 1 // SPDX-License-Identifier: (GPL-2.0 OR MIT) 5 #include <dt-bindings/input/input.h> 10 interrupt-controller; 11 #interrupt-cells = <2>; 14 compatible = "mediatek,mt6358-auxadc"; 15 #io-channel-cells = <1>; 19 compatible = "mediatek,mt6358-sound"; 20 mediatek,dmic-mode = <0>; /* two-wires */ 24 compatible = "mediatek,mt6358-regulator"; 27 regulator-name = "vdram1"; [all …]
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/linux-6.12.1/Documentation/ABI/testing/ |
D | sysfs-bus-counter | 3 Contact: linux-iio@vger.kernel.org 11 Contact: linux-iio@vger.kernel.org 16 MTCLKA-MTCLKB: 20 MTCLKC-MTCLKD: 26 Contact: linux-iio@vger.kernel.org 33 Contact: linux-iio@vger.kernel.org 39 Contact: linux-iio@vger.kernel.org 45 Contact: linux-iio@vger.kernel.org 52 Contact: linux-iio@vger.kernel.org 59 Contact: linux-iio@vger.kernel.org [all …]
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/linux-6.12.1/drivers/mmc/host/ |
D | davinci_mmc.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later 3 * davinci_mmc.c - TI DaVinci MMC/SD/SDIO driver 21 #include <linux/dma-mapping.h> 24 #include <linux/mmc/slot-gpio.h> 27 #include <linux/platform_data/mmc-davinci.h> 37 #define DAVINCI_MMCTOR 0x14 /* Response Time-Out Register */ 38 #define DAVINCI_MMCTOD 0x18 /* Data Read Time-Out Register */ 140 * than the page or two that's otherwise typical. nr_sg (passed from 144 #define MAX_CCNT ((1 << 16) - 1) 213 struct sg_mapping_iter *sgm = &host->sg_miter; in davinci_fifo_data_trans() [all …]
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/linux-6.12.1/drivers/dma/ |
D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only 112 tristate "Analog Devices AXI-DMAC DMA support" 118 Enable support for the Analog Devices AXI-DMAC peripheral. This DMA 154 tristate "SA-11x0 DMA support" 159 Support the DMA engine found on Intel StrongARM SA-1100 and 160 SA-1110 SoCs. This DMA engine can only be used with on-chip 220 This module can be found on Freescale Vybrid and LS-1 SoCs. 263 Enable support for the IMG multi-threaded DMA controller (MDC). 283 tristate "Intel integrated DMA 64-bit support" 319 accel-config) to continue function. It is expected that accel-config [all …]
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/linux-6.12.1/Documentation/networking/pse-pd/ |
D | pse-pi.rst | 1 .. SPDX-License-Identifier: GPL-2.0 9 eight-pin modular jack, commonly known as the Ethernet RJ45 port. This 14 --------------------------- 19 - Section "33.2.3 PI pin assignments" covers the pin assignments for PoE 20 systems that utilize two pairs for power delivery. 21 - Section "145.2.4 PSE PI" addresses the configuration for PoE systems that 25 ------------------------------- 31 two pairs of wires, SPE operates on a simpler model due to its single-pair 33 assignments for power delivery, as described in the PSE PI for multi-pair 37 -------------------- [all …]
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