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/Documentation/devicetree/bindings/i2c/
Dbrcm,brcmstb-i2c.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/i2c/brcm,brcmstb-i2c.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Kamal Dasu <kdasu.kdev@gmail.com>
13 - $ref: /schemas/i2c/i2c-controller.yaml#
18 - brcm,bcm2711-hdmi-i2c
19 - brcm,brcmstb-i2c
20 - brcm,brcmper-i2c
25 - description: BSC register range
[all …]
Dmarvell,mv64xxx-i2c.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/i2c/marvell,mv64xxx-i2c.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Marvell MV64XXX I2C Controller
10 - Gregory CLEMENT <gregory.clement@bootlin.com>
15 - const: allwinner,sun4i-a10-i2c
16 - items:
17 - const: allwinner,sun7i-a20-i2c
18 - const: allwinner,sun4i-a10-i2c
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Di2c-exynos5.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/i2c/i2c-exynos5.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Samsung's High Speed I2C controller
10 - Krzysztof Kozlowski <krzk@kernel.org>
13 The Samsung's High Speed I2C controller is used to interface with I2C devices
17 e.g. for Exynos850 and Exynos Auto V9 SoCs), it might be also necessary to
18 define USI node in device tree file, choosing "i2c" configuration. Please see
19 Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml for details.
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/Documentation/devicetree/bindings/extcon/
Dextcon-rt8973a.txt2 * Richtek RT8973A - Micro USB Switch device
4 The Richtek RT8973A is Micro USB Switch with OVP and I2C interface. The RT8973A
7 speed USB operation. Also, RT8973A support 'auto-configuration' mode.
8 If auto-configuration mode is enabled, RT8973A would control internal h/w patch
9 for USB D-/D+ switching.
12 - compatible: Should be "richtek,rt8973a-muic"
13 - reg: Specifies the I2C slave address of the MUIC block. It should be 0x14
14 - interrupts: Interrupt specifiers for detection interrupt sources.
19 compatible = "richtek,rt8973a-muic";
20 interrupt-parent = <&gpx1>;
/Documentation/devicetree/bindings/mfd/
Dams,as3711.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
13 AS3711 is an I2C PMIC from Austria MicroSystems with multiple DC/DC and LDO
15 two step-up DC/DC converters are defined.
26 Step-up converter configuration, to be used as a backlight source
31 const: ams,as3711-bl
33 su1-dev:
34 description: Framebuffer phandle for the first step-up converter
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/Documentation/devicetree/bindings/hwmon/
Dadi,ltc4282.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices LTC4282 I2C High Current Hot Swap Controller over I2C
10 - Nuno Sa <nuno.sa@analog.com>
13 Analog Devices LTC4282 I2C High Current Hot Swap Controller over I2C.
15 https://www.analog.com/media/en/technical-documentation/data-sheets/ltc4282.pdf
20 - adi,ltc4282
25 vdd-supply: true
30 '#clock-cells':
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/Documentation/hwmon/
Dadm9240.rst10 Addresses scanned: I2C 0x2c - 0x2f
20 Addresses scanned: I2C 0x2c - 0x2f
24 http://pdfserv.maxim-ic.com/en/ds/DS1780.pdf
30 Addresses scanned: I2C 0x2c - 0x2f
37 - Frodo Looijaard <frodol@dds.nl>,
38 - Philip Edelbrock <phil@netroedge.com>,
39 - Michiel Rook <michiel@grendelproject.nl>,
40 - Grant Coady <gcoady.lk@gmail.com> with guidance
44 ---------
45 The I2C addresses listed above assume BIOS has not changed the
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Dtps23861.rst1 .. SPDX-License-Identifier: GPL-2.0-only
16 -----------
20 TPS23861 is a quad port IEEE802.3at PSE controller with optional I2C control
23 TPS23861 offers three modes of operation: Auto, Semi-Auto and Manual.
25 This driver only supports the Auto mode of operation providing monitoring
29 -------------
32 in[0-3]_input Voltage on ports [1-4]
33 in[0-3]_label "Port[1-4]"
38 curr[1-4]_input Current on ports [1-4]
39 in[1-4]_label "Port[1-4]"
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Dmax31760.rst1 .. SPDX-License-Identifier: GPL-2.0-or-later
19 -----------
23 temperature of a discrete diode-connected transistor, such as a 2N3906,
27 I2C-compatible interface. Fan speed is controlled based on the temperature
28 reading as an index to a 48-byte lookup table (LUT) containing
29 user-programmed PWM values. The flexible LUT-based architecture enables
35 remote high-temperature threshold has been exceeded.
37 Temperature measurement range: from -55°C to 125°C
41 Please refer how to instantiate this driver: Documentation/i2c/instantiating-devices.rst
43 Lookup table for auto fan control
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Dmenf21bmc.rst10 Addresses scanned: -
15 -----------
17 The menf21bmc is a Board Management Controller (BMC) which provides an I2C
26 -----------
29 not auto-detect devices.
31 Please see Documentation/i2c/instantiating-devices.rst for
35 -------------
47 in[0-4]_min Minimum voltage limit
48 in[0-4]_max Maximum voltage limit
Dadm1177.rst7 Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1177.pdf
13 -----------
16 Hot-Swap Controller and Digital Power Monitors with Soft Start Pin.
20 -----------
22 This driver does not auto-detect devices. You will have to instantiate the
23 devices explicitly. Please see Documentation/i2c/instantiating-devices.rst
28 -------------
31 is read-write, all other attributes are read-only.
Dpmbus-core.rst9 power-management protocol with a fully defined command language that facilitates
11 protocol is implemented over the industry-standard SMBus serial interface and
12 enables programming, control, and real-time monitoring of compliant power
18 promoted by the PMBus Implementers Forum (PMBus-IF), comprising 30+ adopters
22 commands, and manufacturers can add as many non-standard commands as they like.
23 Also, different PMBUs devices act differently if non-supported commands are
43 PMBus device capabilities auto-detection
46 For generic PMBus devices, code in pmbus.c attempts to auto-detect all supported
47 PMBus commands. Auto-detection is somewhat limited, since there are simply too
50 pages (see the PMBus specification for details on multi-page PMBus devices).
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Dadp1050.rst1 .. SPDX-License-Identifier: GPL-2.0
12 Addresses scanned: I2C 0x70 - 0x77
14 Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADP1050.pdf
18 - Radu Sabau <radu.sabau@analog.com>
22 -----------
28 interface targeting high density, high efficiency dc-to-dc power
34 -----------
36 This driver does not auto-detect devices. You will have to instantiate
38 Please see Documentation/i2c/instantiating-devices.rst for details.
41 ---------------------
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/Documentation/devicetree/bindings/media/i2c/
Dgalaxycore,gc0308.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/media/i2c/galaxycore,gc0308.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Sebastian Reichel <sre@kernel.org>
14 programmable through an I2C interface and connected via parallel bus.
15 They include an ISP capable of auto exposure and auto white balance.
18 - $ref: /schemas/media/video-interface-devices.yaml#
23 - const: galaxycore,gc0308
24 - items:
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Dchrontel,ch7322.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/media/i2c/chrontel,ch7322.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Chrontel HDMI-CEC Controller
10 - Jeff Chase <jnchase@google.com>
13 The Chrontel CH7322 is a discrete HDMI-CEC controller. It is
14 programmable through I2C and drives a single CEC line.
17 - $ref: /schemas/media/cec/cec-common.yaml#
24 description: I2C device address
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Dsony,imx296.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/media/i2c/sony,imx296.yaml#
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
[all …]
/Documentation/devicetree/bindings/regulator/
Drichtek,rt4803.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - ChiYuan Huang <cy_huang@richtek.com>
15 supports boost and auto bypass mode that depends on the difference between the
20 https://www.richtek.com/assets/product_file/RT4803/DS4803-03.pdf
21 https://www.richtek.com/assets/product_file/RT4803A/DS4803A-06.pdf
24 - $ref: regulator.yaml#
29 - richtek,rt4803
34 richtek,vsel-active-high:
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Drichtek,rt5759-regulator.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/regulator/richtek,rt5759-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - ChiYuan Huang <cy_huang@richtek.com>
13 The RT5759 is a high-performance, synchronous step-down DC-DC converter that
15 voltage can be programmable with I2C controlled 7-Bit VID.
18 https://www.richtek.com/assets/product_file/RT5759/DS5759-00.pdf
23 - richtek,rt5759
24 - richtek,rt5759a
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/Documentation/i2c/
Di2c-stub.rst2 i2c-stub
8 This module is a very simple fake I2C/SMBus driver. It implements six
10 word data, (r/w) I2C block data, and (r/w) SMBus block data.
21 A pointer register with auto-increment is implemented for all byte
33 The typical use-case is like this:
36 2. use i2cset (from the i2c-tools project) to pre-load some data
40 There's a script named i2c-stub-from-dump in the i2c-tools package which
51 constants in <linux/i2c.h> for the suitable values. For example,
Di2c-topology.rst2 I2C muxes and complex topologies
5 There are a couple of reasons for building more complex I2C topologies
6 than a straight-forward I2C bus with one adapter and one or more devices.
16 from the I2C bus, at least most of the time, and sits behind a gate
19 Several types of hardware components such as I2C muxes, I2C gates and I2C
22 These components are represented as I2C adapter trees by Linux, where
25 I2C transfers, and all adapters with a parent are part of an "i2c-mux"
29 an I2C transfer on one of its child adapters. The mux driver can
39 There are two variants of locking available to I2C muxes, they can be
40 mux-locked or parent-locked muxes.
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Di2c_bus.svg1 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
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3 <!-- Updated to inclusive terminology by Wolfram Sang -->
8 xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
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14 inkscape:version="0.92.3 (2405546, 2018-03-11)"
24 orient="auto"
31 inkscape:connector-curvature="0"
33 …d="m -2.5,-1 c 0,2.76 -2.24,5 -5,5 -2.76,0 -5,-2.24 -5,-5 0,-2.76 2.24,-5 5,-5 2.76,0 5,2.24 5,5 z"
34 …style="fill:#000000;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:1.00000003pt;stro…
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/Documentation/devicetree/bindings/net/dsa/
Dlan9303.txt2 -------------------------------------------------
6 - compatible: should be
7 - "smsc,lan9303-i2c" for I2C managed mode
9 - "smsc,lan9303-mdio" for mdio managed mode
13 - reset-gpios: GPIO to be used to reset the whole device
14 - reset-duration: reset duration in milliseconds, defaults to 200 ms
23 auto-detected and mapped accordingly.
27 I2C managed mode:
31 fixed-link { /* RMII fixed link to LAN9303 */
33 full-duplex;
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/Documentation/ABI/testing/
Dsysfs-driver-bd9571mwv-regulator1 What: /sys/bus/i2c/devices/.../bd9571mwv-regulator.*.auto/backup_mode
18 wake-up switch,
/Documentation/devicetree/bindings/rtc/
Dabracon,abx80x.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Abracon ABX80X I2C ultra low power RTC/Alarm chip
10 - linux-rtc@vger.kernel.org
17 must perform auto-detection from ID register.
19 - abracon,abx80x
20 - abracon,ab0801
21 - abracon,ab0803
22 - abracon,ab0804
[all …]
/Documentation/hid/
Dhid-sensor.rst26 Logical Minimum(-32767)
35 The report is indicating "sensor page (0x20)" contains an accelerometer-3D (0x73).
36 This accelerometer-3D has some fields. Here for example field 2 is motion intensity
37 (0x045f) with a logical minimum value of -32767 and logical maximum of 32767. The
51 - Core HID driver
52 - Individual sensor processing part (sensor drivers)
55 -----------
56 The core driver (hid-sensor-hub) registers as a HID driver. It parses
58 with name HID-SENSOR-xxxx (where xxxx is usage id from the specification).
62 HID-SENSOR-200073 is registered for an Accelerometer 3D driver.
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