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/Documentation/devicetree/bindings/interrupt-controller/
Dintel,ce4100-lapic.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/interrupt-controller/intel,ce4100-lapic.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Rahul Tanwar <rtanwar@maxlinear.com>
28 [1] https://pdos.csail.mit.edu/6.828/2008/readings/ia32/IA32-3A.pdf
32 const: intel,ce4100-lapic
37 interrupt-controller: true
39 '#interrupt-cells':
42 intel,virtual-wire-mode:
[all …]
/Documentation/devicetree/bindings/sound/
Dmt6359.yaml1 # 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 # two wires
[all …]
Dmt6358.txt10 - 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>;
Dmediatek,mt8365-afe.yaml1 # 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 …]
/Documentation/w1/
Dw1-generic.rst2 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 …]
/Documentation/hwmon/
Dlm85.rst79 - Philip Pokorny <ppokorny@penguincomputing.com>,
80 - Frodo Looijaard <frodol@dds.nl>,
81 - Richard Barrington <rich_b_nz@clear.net.nz>,
82 - Margit Schubert-While <margitsw@t-online.de>,
83 - Justin Thiessen <jthiessen@penguincomputing.com>
86 -----------
92 The LM85 uses the 2-wire interface compatible with the SMBUS 2.0
94 temperatures and five (5) voltages. It has four (4) 16-bit counters for
104 The temperatures measured are one internal diode, and two remote diodes.
127 ----------------
[all …]
Dlm95234.rst22 Author: Guenter Roeck <linux@roeck-us.net>
25 -----------
27 LM95233 and LM95234 are 11-bit digital temperature sensors with a 2-wire
29 that can very accurately monitor the temperature of two (LM95233)
32 graphics processors or diode-connected 2N3904s. The chip's TruTherm
37 is provided within a range of -127 to +255 degrees (+127.875 degrees for
42 affects the hysteresis on all channels. The first two external sensors also
Dtc654.rst13 - Chris Packham <chris.packham@alliedtelesis.co.nz>
14 - Masahiko Iwamoto <iwamoto@allied-telesis.co.jp>
17 -----------
20 The TC654 uses the 2-wire interface compatible with the SMBUS 2.0
21 specification. The TC654 has two (2) inputs for measuring fan RPM and
25 -------------------
Dlm95245.rst22 Author: Alexander Stein <alexander.stein@systec-electronic.com>
25 -----------
27 LM95235 and LM95245 are 11-bit digital temperature sensors with a 2-wire System
34 is given within a range of -127 to +127.875 degrees. Remote temperatures are
35 given within a range of -127 to +255 degrees. Resolution depends on
40 user-space applications, two absolute values are exported, one for each
42 can be set from user-space, and the same delta applies to the remote
Dasc7621.rst20 Andigilog has both the PECI and pre-PECI versions of the Heceta-6, as
21 Intel calls them. Heceta-6e has high frequency PWM and Heceta-6p has
23 Heceta-6e part and aSC7621 is the Heceta-6p part. They are both in
28 have used registers below 20h for vendor-specific functions in addition
29 to those in the Intel-specified vendor range.
31 Our conversion process produces a result that is reported as two bytes.
32 The fan speed control uses this finer value to produce a "step-less" fan
33 PWM output. These two bytes are "read-locked" to guarantee that once a
34 high or low byte is read, the other byte is locked-in until after the
37 sheet says 10-bits of resolution, although you may find the lower bits
[all …]
Dadt7470.rst17 -----------
22 The ADT7470 uses the 2-wire interface compatible with the SMBus 2.0
24 external temperatures. It has four (4) 16-bit counters for measuring fan speed.
45 ----------------
47 The ADT7470 has a 8-bit ADC and is capable of measuring temperatures with 1
54 -------------------
61 * pwm#_auto_point2_pwm and pwm#_auto_point2_temp -
63 - point1: Set the pwm speed at a lower temperature bound.
64 - point2: Set the pwm speed at a higher temperature bound.
67 the temperature is between the two temperature boundaries. PWM values range
[all …]
/Documentation/devicetree/bindings/watchdog/
Dzii,rave-sp-wdt.txt7 Documentation/devicetree/bindings/mfd/zii,rave-sp.txt)
11 - compatible: Depending on wire protocol implemented by RAVE SP
13 - "zii,rave-sp-watchdog"
14 - "zii,rave-sp-watchdog-legacy"
18 - wdt-timeout: Two byte nvmem cell specified as per
23 rave-sp {
24 compatible = "zii,rave-sp-rdu1";
25 current-speed = <38400>;
28 wdt_timeout: wdt-timeout@8E {
34 compatible = "zii,rave-sp-watchdog";
[all …]
/Documentation/devicetree/bindings/i2c/
Di2c-octeon.txt1 * Two Wire Serial Interface (TWSI) / I2C
3 - compatible: "cavium,octeon-3860-twsi"
9 compatible: "cavium,octeon-7890-twsi"
13 - reg: The base address of the TWSI/I2C bus controller register bank.
15 - #address-cells: Must be <1>.
17 - #size-cells: Must be <0>. I2C addresses have no size component.
19 - interrupts: A single interrupt specifier.
21 - clock-frequency: The I2C bus clock rate in Hz.
25 #address-cells = <1>;
26 #size-cells = <0>;
[all …]
/Documentation/devicetree/bindings/media/i2c/
Dmt9m111.txt4 array size of 1280H x 1024V. It is programmable through a simple two-wire serial
8 - compatible: value should be "micron,mt9m111"
9 - clocks: reference to the master clock.
10 - clock-names: shall be "mclk".
13 sub-node for its digital output video port, in accordance with the video
15 Documentation/devicetree/bindings/media/video-interfaces.txt
18 - pclk-sample: For information see ../video-interfaces.txt. The value is set to
28 clock-names = "mclk";
32 remote-endpoint = <&pxa_camera>;
33 pclk-sample = <1>;
Dmt9v032.txt1 * Aptina 1/3-Inch WVGA CMOS Digital Image Sensor
3 The Aptina MT9V032 is a 1/3-inch CMOS active pixel digital image sensor with
5 two-wire serial interface.
9 - compatible: value should be either one among the following
21 - link-frequencies: List of allowed link frequencies in Hz. Each frequency is
22 expressed as a 64-bit big-endian integer.
23 - reset-gpios: GPIO handle which is connected to the reset pin of the chip.
24 - standby-gpios: GPIO handle which is connected to the standby pin of the chip.
27 Documentation/devicetree/bindings/media/video-interfaces.txt.
37 link-frequencies = /bits/ 64
Daptina,mt9p031.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Aptina 1/2.5-Inch 5Mp CMOS Digital Image Sensor
10 - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
13 The Aptina MT9P031 is a 1/2.5-inch CMOS active pixel digital image sensor
15 simple two-wire serial interface.
20 - aptina,mt9p006
21 - aptina,mt9p031
22 - aptina,mt9p031m
[all …]
Dsony,imx296.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Sony IMX296 1/2.8-Inch CMOS Image Sensor
10 - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
11 - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
13 description: |-
14 The Sony IMX296 is a 1/2.9-Inch active pixel type CMOS Solid-state image
16 features a global shutter with variable charge-integration time. It is
17 programmable through I2C and 4-wire interfaces. The sensor output is
[all …]
Dovti,ov8856.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Sakari Ailus <sakari.ailus@linux.intel.com>
13 description: |-
14 The Omnivision OV8856 is a high performance, 1/4-inch, 8 megapixel, CMOS
15 image sensor that delivers 3264x2448 at 30fps. It provides full-frame,
16 sub-sampled, and windowed 10-bit MIPI images in various formats via the
18 through I2C and two-wire SCCB. The sensor output is available via CSI-2
19 serial data output (up to 4-lane).
[all …]
Dovti,ov5675.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Quentin Schulz <quentin.schulz@theobroma-systems.com>
14 - $ref: /schemas/media/video-interface-devices.yaml#
17 The Omnivision OV5675 is a high performance, 1/5-inch, 5 megapixel, CMOS
18 image sensor that delivers 2592x1944 at 30fps. It provides full-frame,
19 sub-sampled, and windowed 10-bit MIPI images in various formats via the
22 This chip is programmable through I2C and two-wire SCCB. The sensor output
23 is available via CSI-2 serial data output (up to 2-lane).
[all …]
/Documentation/i2c/
Dsummary.rst6 a protocol developed by Philips. It is a two-wire protocol with variable
12 e.g. TWI (Two Wire Interface), IIC.
14 The latest official I2C specification is the `"I²C-bus specification and user
15 manual" (UM10204) <https://www.nxp.com/docs/en/user-guide/UM10204.pdf>`_
36 .. kernel-figure:: i2c_bus.svg
59 video-related chips.
66 --------
75 --------------------
82 target. Work to replace the old terminology in the Linux Kernel is on-going.
/Documentation/driver-api/
Di2c.rst5 the "Inter-IC" bus, a simple bus protocol which is widely used where low
7 some vendors use another name (such as "Two-Wire Interface", TWI) for
8 the same bus. I2C only needs two signals (SCL for clock, SDA for data),
12 I2C is a multi-master bus; open drain signaling is used to arbitrate
18 structured around two kinds of driver, and two kinds of device. An I2C
38 .. kernel-doc:: include/linux/i2c.h
41 .. kernel-doc:: drivers/i2c/i2c-boardinfo.c
44 .. kernel-doc:: drivers/i2c/i2c-core-base.c
47 .. kernel-doc:: drivers/i2c/i2c-core-smbus.c
/Documentation/devicetree/bindings/fsi/
Dfsi-controller.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/fsi/fsi-controller.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Eddie James <eajames@linux.ibm.com>
13 FSI (FRU (Field Replaceable Unit) Service Interface) is a two wire bus. The
18 "#address-cells":
21 "#size-cells":
24 '#interrupt-cells':
27 bus-frequency:
[all …]
/Documentation/devicetree/bindings/net/
Dadi,adin1110.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: ADI ADIN1110 MAC-PHY
10 - Alexandru Tachici <alexandru.tachici@analog.com>
13 The ADIN1110 is a low power single port 10BASE-T1L MAC-
18 The ADIN2111 is a low power, low complexity, two-Ethernet ports
19 switch with integrated 10BASE-T1L PHYs and one serial peripheral
22 with the IEEE 802.3cg-2019 Ethernet standard for long reach
25 The device has a 4-wire SPI interface for communication
[all …]
/Documentation/devicetree/bindings/powerpc/fsl/
Dmpc5200.txt2 ----------------------------
4 (c) 2006-2009 Secret Lab Technologies Ltd
8 ------------------
9 For mpc5200 on-chip devices, the format for each compatible value is
10 <chip>-<device>[-<mode>]. The OS should be able to match a device driver
11 to the device based solely on the compatible value. If two drivers
21 "fsl,mpc5200-<device>".
28 should have two items in the compatible list:
29 compatible = "fsl,mpc5200b-<device>","fsl,mpc5200-<device>";
34 ie. ethernet on mpc5200: compatible = "fsl,mpc5200-fec";
[all …]
/Documentation/w1/slaves/
Dw1_ds2413.rst7 * Maxim DS2413 1-Wire Dual Channel Addressable Switch
18 -----------
20 The DS2413 chip has two open-drain outputs (PIO A and PIO B).
24 -------------
25 The "state" file provides one-byte value which is in the same format as for
33 Bit 4-7: Complement of Bit 3 to Bit 0 (verified by the kernel module)
39 --------------
41 It is writable, you can write one-byte value to this sysfs file.
47 Bit 2-7: No matter (driver will set it to "1"s)

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