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/Linux-v5.15/Documentation/devicetree/bindings/mtd/
Dpartition.txt4 Flash devices can be partitioned into one or more functional ranges (e.g. "boot
8 flash layout set at production time. Some may use on-flash table that describes
9 the geometry and naming/purpose of each functional region. It is also possible
20 hierarchical (multi-level) layouts and should be used if there is some
/Linux-v5.15/drivers/clk/
DKconfig1 # SPDX-License-Identifier: GPL-2.0
60 Low-Noise JESD204B Compliant Clock Jitter Cleaner With Dual Loop PLLs
80 These multi-function devices have two fixed-rate oscillators, clocked at 32KHz each.
90 multi-function device has one fixed-rate oscillator, clocked
121 be pre-programmed to support other configurations and features not yet
170 This driver supports TI CDCE706 programmable 3-PLL clock synthesizer.
180 For example, the CDCE925 contains two PLLs with spread-spectrum
190 tristate "Clock driver for CS2000 Fractional-N Clock Synthesizer & Clock Multiplier"
241 clock. These multi-function devices have two (S2MPS14) or three
242 (S2MPS11, S5M8767) fixed-rate oscillators, clocked at 32KHz each.
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/Linux-v5.15/Documentation/devicetree/bindings/thermal/
Dexynos-thermal.txt5 - compatible : One of the following:
6 "samsung,exynos3250-tmu"
7 "samsung,exynos4412-tmu"
8 "samsung,exynos4210-tmu"
9 "samsung,exynos5250-tmu"
10 "samsung,exynos5260-tmu"
11 "samsung,exynos5420-tmu" for TMU channel 0, 1 on Exynos5420
12 "samsung,exynos5420-tmu-ext-triminfo" for TMU channels 2, 3 and 4
14 "samsung,exynos5433-tmu"
15 "samsung,exynos7-tmu"
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/Linux-v5.15/Documentation/devicetree/bindings/mfd/
Dhi6421.txt1 * HI6421 Multi-Functional Device (MFD), by HiSilicon Ltd.
4 - compatible : One of the following chip-specific strings:
5 "hisilicon,hi6421-pmic";
6 "hisilicon,hi6421v530-pmic";
7 - reg : register range space of hi6421;
9 Supported Hi6421 sub-devices include:
12 ------ --------- ------------ -----------
20 compatible = "hisilicon,hi6421-pmic";
26 regulator-name = "VOUT0";
27 regulator-min-microvolt = <2850000>;
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Dstmpe.txt1 * ST Microelectronics STMPE Multi-Functional Device
7 - compatible : "st,stmpe[610|801|811|1600|1601|2401|2403]"
8 - reg : I2C/SPI address of the device
11 - interrupts : The interrupt outputs from the controller
12 - interrupt-controller : Marks the device node as an interrupt controller
13 - wakeup-source : Marks the input device as wakable
14 - st,autosleep-timeout : Valid entries (ms); 4, 16, 32, 64, 128, 256, 512 and 1024
15 - irq-gpio : If present, which GPIO to use for event IRQ
18 - st,sample-time : ADC conversion time in number of clock.
19 0 -> 36 clocks 4 -> 80 clocks (recommended)
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Dcirrus,madera.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Cirrus Logic Madera class audio CODECs Multi-Functional Device
10 - patches@opensource.cirrus.com
23 - $ref: /schemas/pinctrl/cirrus,madera.yaml#
24 - $ref: /schemas/regulator/wlf,arizona.yaml#
25 - $ref: /schemas/sound/cirrus,madera.yaml#
26 - if:
31 - cirrus,cs47l85
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Dab8500.txt1 * AB8500 Multi-Functional Device (MFD)
4 - compatible : contains "stericsson,ab8500" or "stericsson,ab8505";
5 - interrupts : contains the IRQ line for the AB8500
6 - interrupt-controller : describes the AB8500 as an Interrupt Controller (has its own domain)
7 - #interrupt-cells : should be 2, for 2-cell format
8 - The first cell is the AB8500 local IRQ number
9 - The second cell is used to specify optional parameters
10 - bits[3:0] trigger type and level flags:
11 1 = low-to-high edge triggered
12 2 = high-to-low edge triggered
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/Linux-v5.15/drivers/usb/typec/tcpm/
DKconfig1 # SPDX-License-Identifier: GPL-2.0
4 tristate "USB Type-C Port Controller Manager"
9 The Type-C Port Controller Manager provides a USB PD and USB Type-C
10 state machine for use with Type-C Port Controllers.
15 tristate "Type-C Port Controller Interface driver"
19 Type-C Port Controller driver for TCPCI-compliant controller.
24 tristate "Richtek RT1711H Type-C chip driver"
26 Richtek RT1711H Type-C chip driver that works with
27 Type-C Port Controller Manager to provide USB PD and USB
28 Type-C functionalities.
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/Linux-v5.15/Documentation/devicetree/bindings/leds/
Dleds-pm8058.txt3 The Qualcomm PM8058 is a multi-functional device which contains
8 are more of a suggestion than a hard-wired usecase.
10 Hardware-wise the different LEDs support slightly different
17 mfd/qcom-pm8xxx.txt.
19 Each LED is represented as a sub-node of the syscon device. Each
22 LED sub-node properties:
25 - compatible: one of
26 "qcom,pm8058-led" (for the normal LEDs at 0x131, 0x132 and 0x133)
27 "qcom,pm8058-keypad-led" (for the "keypad" LED at 0x48)
28 "qcom,pm8058-flash-led" (for the "flash" LEDs at 0x49 and 0xFB)
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/Linux-v5.15/Documentation/devicetree/bindings/usb/
Dmediatek,mt6360-tcpc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: "http://devicetree.org/schemas/usb/mediatek,mt6360-tcpc.yaml#"
5 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
7 title: Mediatek MT6360 Type-C Port Switch and Power Delivery controller DT bindings
10 - ChiYuan Huang <cy_huang@richtek.com>
13 Mediatek MT6360 is a multi-functional device. It integrates charger, ADC, flash, RGB indicators,
15 This document only describes MT6360 Type-C Port Switch and Power Delivery controller.
20 - mediatek,mt6360-tcpc
25 interrupt-names:
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/Linux-v5.15/Documentation/devicetree/bindings/pinctrl/
Datmel,at91-pinctrl.txt4 to share one PAD to several functional blocks. The sharing is done by
10 Please refer to pinctrl-bindings.txt in this directory for details of the
18 such as pull-up, multi drive, etc.
21 - compatible: "atmel,at91rm9200-pinctrl" or "atmel,at91sam9x5-pinctrl"
22 or "atmel,sama5d3-pinctrl" or "microchip,sam9x60-pinctrl"
23 - atmel,mux-mask: array of mask (periph per bank) to describe if a pin can be
45 From the datasheet Table 10-2.
83 - atmel,pins: 4 integers array, represents a group of pins mux and config
90 MULTIDRIVE (1 << 1): indicate this pin needs to be configured as multi-drive.
91 Multi-drive is equivalent to open-drain type output.
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/Linux-v5.15/Documentation/driver-api/
Dslimbus.rst9 ----------------
12 configuration, and is a 2-wire multi-drop implementation (clock, and data).
15 (System-on-Chip) and peripheral components (typically codec). SLIMbus uses
16 Time-Division-Multiplexing to accommodate multiple data channels, and
24 A data channel is used for data-transfer between 2 SLIMbus devices. Data
28 ---------------------
36 Framer device is responsible for clocking the bus, and transmitting frame-sync
49 responsible to select the active-framer for clocking the bus.
55 Each device has a 6-byte enumeration-address and the manager assigns every
56 device with a 1-byte logical address after the devices report presence on the
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Dinterconnect.rst1 .. SPDX-License-Identifier: GPL-2.0
8 ------------
12 latency and priority between multiple interconnected devices or functional
19 components or functional blocks in chipsets. There can be multiple interconnects
20 on an SoC that can be multi-tiered.
22 Below is a simplified diagram of a real-world SoC interconnect bus topology.
26 +----------------+ +----------------+
27 | HW Accelerator |--->| M NoC |<---------------+
28 +----------------+ +----------------+ |
29 | | +------------+
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Dmen-chameleon-bus.rst31 ----------------------
38 -----------------------------------------
44 - Multi-resource MCB devices like the VME Controller or M-Module carrier.
45 - MCB devices that need another MCB device, like SRAM for a DMA Controller's
47 - A per-carrier IRQ domain for carrier devices that have one (or more) IRQs
48 per MCB device like PCIe based carriers with MSI or MSI-X support.
53 MCB is divided into 3 functional blocks:
55 - The MEN Chameleon Bus itself,
56 - drivers for MCB Carrier Devices and
57 - the parser for the Chameleon table.
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Dvfio.rst2 VFIO - "Virtual Function I/O" [1]_
7 allotted. This includes x86 hardware with AMD-Vi and Intel VT-d,
12 safe [2]_, non-privileged, userspace drivers.
19 bare-metal device drivers [3]_.
22 field, also benefit from low-overhead, direct device access from
23 userspace. Examples include network adapters (often non-TCP/IP based)
36 ---------------------------
42 as allowing a device read-write access to system memory imposes the
55 For instance, an individual device may be part of a larger multi-
59 could be anything from a multi-function PCI device with backdoors
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/Linux-v5.15/drivers/phy/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
22 Generic MIPI D-PHY support.
24 Provides a number of helpers a core functions for MIPI D-PHY
46 tristate "APM X-Gene 15Gbps PHY support"
50 This option enables support for APM X-Gene SoC multi-purpose PHY.
61 interface to interact with USB GEN-II and USB 3.x PHY that is part
70 functional modes using gpios and sets the attribute max link
/Linux-v5.15/Documentation/userspace-api/media/
Dglossary.rst1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
51 **Field-programmable Gate Array**
56 See https://en.wikipedia.org/wiki/Field-programmable_gate_array.
65 together make a larger user-facing functional peripheral. For
73 **Inter-Integrated Circuit**
75 A multi-master, multi-slave, packet switched, single-ended,
77 like sub-device hardware components.
79 See http://www.nxp.com/docs/en/user-guide/UM10204.pdf.
113 - :term:`CEC API`;
114 - :term:`Digital TV API`;
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/Linux-v5.15/Documentation/devicetree/bindings/sound/
Drenesas,rsnd.txt1 Renesas R-Car sound
7 Renesas R-Car and RZ/G sound is constructed from below modules
11 - SRC : Sampling Rate Converter
12 - CMD
13 - CTU : Channel Transfer Unit
14 - MIX : Mixer
15 - DVC : Digital Volume and Mute Function
22 * Multi channel
25 Multi channel is supported by Multi-SSI, or TDM-SSI.
27 Multi-SSI : 6ch case, you can use stereo x 3 SSI
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/Linux-v5.15/Documentation/PCI/
Dpci-error-recovery.rst1 .. SPDX-License-Identifier: GPL-2.0
8 :Authors: - Linas Vepstas <linasvepstas@gmail.com>
9 - Richard Lary <rlary@us.ibm.com>
10 - Mike Mason <mmlnx@us.ibm.com>
16 chipsets are able to deal with these errors; these include PCI-E chipsets,
17 and the PCI-host bridges found on IBM Power4, Power5 and Power6-based
32 including multiple instances of a device driver on multi-function
34 waiting for some i/o-space register to change, when it never will.
39 is forced by the need to handle multi-function devices, that is,
42 of reset it desires, the choices being a simple re-enabling of I/O
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/Linux-v5.15/Documentation/arm/
Dmarvell.rst13 ------------
16 - 88F5082
17 - 88F5181
18 - 88F5181L
19 - 88F5182
21 …- Datasheet: https://web.archive.org/web/20210124231420/http://csclub.uwaterloo.ca/~board/ts7800/M…
22 …- Programmer's User Guide: https://web.archive.org/web/20210124231536/http://csclub.uwaterloo.ca/~…
23 …- User Manual: https://web.archive.org/web/20210124231631/http://csclub.uwaterloo.ca/~board/ts7800…
24 - 88F5281
26 …- Datasheet: https://web.archive.org/web/20131028144728/http://www.ocmodshop.com/images/reviews/ne…
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/Linux-v5.15/Documentation/driver-api/rapidio/
Drio_cm.rst19 This driver (RIO_CM) provides to user-space applications shared access to
23 messaging mailboxes in case of multi-packet message (up to 4KB) and
24 up to 64 mailboxes if single-packet messages (up to 256 B) are used. In addition
30 capability to large number of user-space processes by introducing socket-like
39 Following ioctl commands are available to user-space applications:
41 - RIO_CM_MPORT_GET_LIST:
46 - RIO_CM_EP_GET_LIST_SIZE:
49 - RIO_CM_EP_GET_LIST:
53 - RIO_CM_CHAN_CREATE:
56 - RIO_CM_CHAN_BIND:
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/Linux-v5.15/Documentation/hwmon/
Dsubmitting-patches.rst10 ----------
14 - Documentation/process/submit-checklist.rst
15 - Documentation/process/submitting-drivers.rst
16 - Documentation/process/submitting-patches.rst
17 - Documentation/process/coding-style.rst
19 * Please run your patch through 'checkpatch --strict'. There should be no
23 * Please use the standard multi-line comment style. Do not mix C and C++
35 hardware. In such cases, you should test-build the code on at least one
36 architecture. If run-time testing was not achieved, it should be written
44 -------------------------------------------
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/Linux-v5.15/drivers/net/fddi/skfp/h/
Dfplustm.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
59 struct s_txd_os txd_os ; /* OS - specific struct */
76 struct s_rxd_os rxd_os ; /* OS - specific struct */
125 #define RX_FIFO_SPACE 0x4000 - RX_FIFO_OFF
130 #define TX_LARGE_FIFO TX_FIFO_SPACE - TX_SMALL_FIFO
133 #define RX_LARGE_FIFO RX_FIFO_SPACE - RX_SMALL_FIFO
155 u_short rx_mode ; /* address mode broad/multi/promisc */
225 u_long func_addr ; /* functional address */
228 /* used by the os-specific module */
245 * CPU is big endian; M-Channel is little endian)
/Linux-v5.15/Documentation/mhi/
Dmhi.rst1 .. SPDX-License-Identifier: GPL-2.0
26 ----
45 debugging information like performance, functional, and stability to the host.
48 ---------------
74 --------
82 bidirectional data pipe, which can be used by the upper-layer protocols to
88 --------------
95 [Read Pointer (RP)] ----------->[Ring Element] } TD
96 [Write Pointer (WP)]- [Ring Element]
97 - [Ring Element]
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/Linux-v5.15/drivers/net/fddi/skfp/
Dskfddi.c1 // SPDX-License-Identifier: GPL-2.0-or-later
41 * 02-Mar-98 CG Created.
43 * 10-Mar-99 CG Support for 2.2.x added.
44 * 25-Mar-99 CG Corrected IRQ routing for SMP (APIC)
45 * 26-Oct-99 CG Fixed compilation error on 2.2.13
46 * 12-Nov-99 CG Source code release
47 * 22-Nov-99 CG Included in kernel source.
48 * 07-May-00 DM 64 bit fixes, new dma interface
49 * 31-Jul-03 DB Audit copy_*_user in skfp_ioctl
51 * 03-Dec-03 SH Convert to PCI device model
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