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/linux/Documentation/ABI/testing/
H A Dsysfs-firmware-lefi-boardinfo7 and BIOS version when there exists problems related with
10 The related structures are already defined in the interface
18 Board Info
20 Board Name : LEMOTE-LS3A4000-7A1000-1w-V01-pc
25 Version : Kunlun-A1901-V4.1.3-20200414093938
27 Release Date : 2020-04-14
H A Dsysfs-c2port13 The /sys/class/c2port/c2portX/ directory is related to X-th
37 access to the on-board flash of the connected micro.
45 the on-board flash block size of the connected micro.
52 the on-board flash blocks number of the connected micro.
59 the content of the on-board flash of the connected micro.
66 the "erase" command on the on-board flash of the connected
/linux/include/sound/
H A Dsoc-acpi.h1 /* SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2013-15, Intel Corporation
22 /* codec name is used in DAIs is i2c-<HID>:00 with HID being 8 chars */
61 * @acpi_ipc_irq_index: used for BYT-CR detection
64 * @dmic_num: number of SoC- or chipset-attached PDM digital microphones
65 * @link_mask: SoundWire links enabled on the board
67 * @i2s_link_mask: I2S/TDM links enabled on the board
75 * @bt_link_mask: BT offload link enabled on the board
95 * snd_soc_acpi_endpoint - endpoint descriptor
98 * @group_position: zero-based order (only when @aggregated is 1)
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/linux/arch/powerpc/platforms/52xx/
H A Dmpc5200_simple.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Support for 'mpc5200-simple-platform' compatible boards.
13 * - GPIO pins are configured by the firmware,
14 * - CDM configuration (clocking) is setup correctly by firmware,
15 * - if the 'fsl,has-wdt' property is present in one of the
16 * gpt nodes, then it is safe to use such gpt to reset the board,
17 * - PCI is supported if enabled in the kernel configuration
21 * are listed in a 'board' table.
41 /* Some mpc5200 & mpc5200b related configuration */ in mpc5200_simple_setup_arch()
46 static const char *board[] __initdata = { variable
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H A Dlite5200.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Freescale Lite5200 board support
34 { .compatible = "fsl,mpc5200-cdm", },
35 { .compatible = "mpc5200-cdm", },
40 { .compatible = "fsl,mpc5200-gpio", },
41 { .compatible = "mpc5200-gpio", },
49 * new board port, do *NOT* duplicate this code. Fix your boot firmware
68 out_8(&cdm->ext_48mhz_en, 0x00); in lite5200_fix_clock_config()
69 out_8(&cdm->fd_enable, 0x01); in lite5200_fix_clock_config()
70 if (in_be32(&cdm->rstcfg) & 0x40) /* Assumes 33Mhz clock */ in lite5200_fix_clock_config()
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/linux/sound/soc/intel/common/
H A Dsoc-acpi-intel-byt-match.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * soc-acpi-intel-byt-match.c - tables and support for BYT ACPI enumeration.
9 #include <sound/soc-acpi.h>
10 #include <sound/soc-acpi-intel-match.h>
91 .drv_name = "cht-bsw-rt5672",
93 .board = "cht-bsw",
94 .sof_tplg_filename = "sof-byt-rt5670.tplg",
101 .board = "bytcr_rt5651",
102 .sof_tplg_filename = "sof-byt-rt5651.tplg",
146 .board = "bytcr_rt5640",
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H A Dsoc-acpi-intel-cht-match.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * soc-acpi-intel-cht-match.c - tables and support for CHT ACPI enumeration.
9 #include <sound/soc-acpi.h>
10 #include <sound/soc-acpi-intel-match.h>
35 .drv_name = "cht-bsw-rt5645",
37 .board = "cht-bsw",
38 .sof_tplg_filename = "sof-cht-rt5645.tplg",
79 * The Lenovo Yoga Tab 3 Pro YT3-X90, with Android factory OS has a buggy DSDT
84 /* Lenovo Yoga Tab 3 Pro YT3-X90, codec missing from DSDT */
87 DMI_MATCH(DMI_PRODUCT_VERSION, "Blade3-10A-001"),
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/linux/Documentation/driver-api/
H A Dmtdnand.rst10 The generic NAND driver supports almost all NAND and AG-AND based chips
15 board drivers or filesystem drivers suitable for NAND devices.
31 --------------------------
37 - [MTD Interface]
43 - [NAND Interface]
48 - [GENERIC]
53 - [DEFAULT]
55 Default functions provide hardware related functionality which is
57 replaced by the board driver if necessary. Those functions are called
58 via pointers in the NAND chip description structure. The board driver
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/linux/Documentation/ABI/stable/
H A Dsysfs-driver-mlxreg-io1 What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic_health
6 0 - health failed, 2 - health OK, 3 - ASIC in booting state.
10 What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_version
11 What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_version
20 What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/fan_dir
25 forward direction - relevant bit is set 0;
26 reversed direction - relevant bit is set 1.
30 What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_version
35 on LED or Gearbox board.
39 What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_enable
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/linux/include/linux/
H A Dfsl_devices.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5 * Definitions for any platform device related flags or structures for
17 PHY CLK to become stable - 10ms*/
30 * Each sub-arch has its own master list of unique devices and
31 * enumerates them by enum fsl_devices in a sub-arch specific header
36 * information that may be defined by the board or how the device
40 * - platform data structures: <driver>_platform_data
41 * - platform data device flags: FSL_<driver>_DEV_<FLAG>
42 * - platform data board flags: FSL_<driver>_BRD_<FLAG>
47 FSL_USB_VER_NONE = -1,
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/linux/drivers/net/ethernet/qlogic/qed/
H A Dqed_sriov.h1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
3 * Copyright (c) 2015-2017 QLogic Corporation
4 * Copyright (c) 2019-2020 Marvell International Ltd.
17 #define IS_VF(cdev) ((cdev)->b_is_vf)
18 #define IS_PF(cdev) (!((cdev)->b_is_vf))
19 #define IS_PF_SRIOV(p_hwfn) (!!((p_hwfn)->cdev->p_iov_info))
25 #define IS_PF_SRIOV_ALLOC(p_hwfn) (!!((p_hwfn)->pf_iov_info))
45 /* These copies will later be reflected in the bulletin board,
78 * and which queue_base to use for Tx queues on a per-queue basis.
86 * Initialized only if SR-IOV cpabability is exposed in PCIe config space.
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/linux/Documentation/admin-guide/media/
H A Dfaq.rst1 .. SPDX-License-Identifier: GPL-2.0
14 a lot of information related to the media subsystem. If you
28 is closed). The ``dvb-core`` module parameter ``dvb_shutdown_timeout``
37 tools and are grouped together with the ``v4l-utils`` git repository:
39 https://git.linuxtv.org/v4l-utils.git/
48 for example the ``dvbv5-scan`` tool. You can find more information
51 https://www.linuxtv.org/wiki/index.php/Dvbv5-scan
70 https://git.linuxtv.org/dtv-scan-tables.git
88 list with a tool like ``dvbv5-scan``.
90 Almost all modern Digital TV cards don't have built-in hardware
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/linux/Documentation/devicetree/bindings/power/reset/
H A Datmel,sama5d2-shdwc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/power/reset/atmel,sama5d2-shdwc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Claudiu Beznea <claudiu.beznea@microchip.com>
14 and VDDCORE and the wake-up detection on debounced input lines.
19 - items:
20 - const: microchip,sama7g5-shdwc
21 - const: syscon
22 - enum:
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/linux/Documentation/devicetree/bindings/mips/img/
H A Dpistachio-marduk.txt1 Imagination Technologies' Pistachio SoC based Marduk Board
4 Compatible string must be "img,pistachio-marduk", "img,pistachio"
6 Hardware and other related documentation is available at
/linux/Documentation/process/
H A Dcontribution-maturity-model.rst1 .. SPDX-License-Identifier: GPL-2.0
22 To that end, the Linux Foundation Technical Advisory Board (TAB)
56 * Software Engineers will be supported to attend Linux-related
67 * Contributing presentations or papers to Linux-related or academic
86 * The number of out-of-tree commits present in internal kernels.
96 * Software Engineers are supported in helping to organize Linux-related
H A Dresearcher-guidelines.rst1 .. SPDX-License-Identifier: GPL-2.0
21 acceptable and non-acceptable practices when conducting such research. At
22 the very least, such research and related activities should follow
27 * `History of Research Ethics <https://www.unlv.edu/research/ORI-HSR/history-ethics>`_
29 * `Developer and Researcher Views on the Ethics of Experiments on Open-Source Projects <https://arx…
33 any publicly-available artifact (including, but not limited to source
35 on developers must be distinctly opt-in.
55 one-way demand placed on busy developers with no corresponding benefit to
92 plenty of known bugs -- what's much more helpful is having vetted fixes.
95 * Documentation/process/development-process.rst
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H A Dmaintainer-soc.rst1 .. SPDX-License-Identifier: GPL-2.0
8 --------
10 The SoC subsystem is a place of aggregation for SoC-specific code.
13 * devicetrees for 32- & 64-bit ARM and RISC-V
14 * 32-bit ARM board files (arch/arm/mach*)
15 * 32- & 64-bit ARM defconfigs
16 * SoC-specific drivers across architectures, in particular for 32- & 64-bit
17 ARM, RISC-V and Loongarch
19 These "SoC-specific drivers" do not include clock, GPIO etc drivers that have
20 other top-level maintainers. The drivers/soc/ directory is generally meant
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/linux/Documentation/spi/
H A Dspi-summary.rst5 02-Feb-2012
8 ------------
17 clocking modes through which data is exchanged; mode-0 and mode-3 are most
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,
44 - Sometimes SPI is used to daisy-chain devices, like shift registers.
51 SPI is only one of the names used by such four-wire protocols, and
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/linux/arch/arc/plat-sim/
H A Dplatform.c1 // SPDX-License-Identifier: GPL-2.0-only
11 /*----------------------- Machine Descriptions ------------------------------
13 * Machine description is simply a set of platform/board specific callbacks
14 * This is not directly related to DeviceTree based dynamic device creation,
/linux/drivers/firmware/arm_scmi/vendors/imx/
H A Dimx-sm-misc.c1 // SPDX-License-Identifier: GPL-2.0
8 #define pr_fmt(fmt) "SCMI Notifications MISC - " fmt
75 ret = ph->xops->xfer_get_init(ph, PROTOCOL_ATTRIBUTES, 0, in scmi_imx_misc_attributes_get()
80 attr = t->rx.buf; in scmi_imx_misc_attributes_get()
82 ret = ph->xops->do_xfer(ph, t); in scmi_imx_misc_attributes_get()
84 mi->nr_dev_ctrl = GET_DEV_CTRLS_NR(attr->attributes); in scmi_imx_misc_attributes_get()
85 mi->nr_brd_ctrl = GET_BRD_CTRLS_NR(attr->attributes); in scmi_imx_misc_attributes_get()
86 mi->nr_reason = GET_REASONS_NR(attr->attributes); in scmi_imx_misc_attributes_get()
87 dev_info(ph->dev, "i.MX MISC NUM DEV CTRL: %d, NUM BRD CTRL: %d,NUM Reason: %d\n", in scmi_imx_misc_attributes_get()
88 mi->nr_dev_ctrl, mi->nr_brd_ctrl, mi->nr_reason); in scmi_imx_misc_attributes_get()
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/linux/Documentation/devicetree/bindings/thermal/
H A Ddb8500-thermal.txt1 * ST-Ericsson DB8500 Thermal
5 - compatible : "stericsson,db8500-thermal";
6 - reg : address range of the thermal sensor registers;
7 - interrupts : interrupts generated from PRCMU;
8 - interrupt-names : "IRQ_HOTMON_LOW" and "IRQ_HOTMON_HIGH";
9 - num-trips : number of total trip points, this is required, set it 0 if none,
11 - tripN-temp : temperature of trip point N, should be in ascending order;
12 - tripN-type : type of trip point N, should be one of "active" "passive" "hot"
14 - tripN-cdev-num : number of the cooling devices which can be bound to trip
17 - tripN-cdev-nameM : name of the No. M cooling device of trip point N;
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/linux/drivers/staging/rtl8723bs/hal/
H A DHalBtcOutSrc.h1 /* SPDX-License-Identifier: GPL-2.0 */
4 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
79 /* The following is some board information */
193 /* BT Coex related */
364 struct btc_bt_info btInfo; /* some bt info referenced by non-bt module */
376 /* io related */
385 /* read/write bb related */
389 /* read/write rf related */
393 /* fill h2c related */
395 /* normal get/set related */
/linux/Documentation/devicetree/bindings/mfd/
H A Dgateworks-gsc.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/mfd/gateworks-gsc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 Gateworks product families that provides a set of system related features
12 such as the following (refer to the board hardware user manuals to see what
14 - Watchdog Timer
15 - GPIO
16 - Pushbutton controller
17 - Hardware monitor with ADC's for temperature and voltage rails and
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/linux/drivers/ssb/
H A Dhost_soc.c2 * Sonics Silicon Backplane SoC host related functions.
18 struct ssb_bus *bus = dev->bus; in ssb_host_soc_read8()
20 offset += dev->core_index * SSB_CORE_SIZE; in ssb_host_soc_read8()
21 return readb(bus->mmio + offset); in ssb_host_soc_read8()
26 struct ssb_bus *bus = dev->bus; in ssb_host_soc_read16()
28 offset += dev->core_index * SSB_CORE_SIZE; in ssb_host_soc_read16()
29 return readw(bus->mmio + offset); in ssb_host_soc_read16()
34 struct ssb_bus *bus = dev->bus; in ssb_host_soc_read32()
36 offset += dev->core_index * SSB_CORE_SIZE; in ssb_host_soc_read32()
37 return readl(bus->mmio + offset); in ssb_host_soc_read32()
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/linux/Documentation/driver-api/i3c/
H A Dprotocol.rst1 .. SPDX-License-Identifier: GPL-2.0
11 everything hardware related (like how things are transmitted on the bus, how
17 https://resources.mipi.org/mipi-i3c-v1-download).
22 The I3C (pronounced 'eye-three-see') is a MIPI standardized protocol designed
25 while remaining power-efficient.
42 I3C is a multi-master protocol, so there might be several masters on a bus,
51 In addition to these per-device addresses, the protocol defines a broadcast
70 * BCR: Bus Characteristic Register. This 8-bit register describes the device bus
71 related capabilities
72 * DCR: Device Characteristic Register. This 8-bit register describes the
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