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/Documentation/devicetree/bindings/memory-controllers/
Dti,gpmc-child.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/ti,gpmc-child.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Tony Lindgren <tony@atomide.com>
11 - Roger Quadros <rogerq@kernel.org>
15 represents any device connected to the GPMC bus. It may be a Flash chip,
16 RAM chip or Ethernet controller, etc. These properties are meant for
24 gpmc,sync-clk-ps:
28 # Chip-select signal timings corresponding to GPMC_CONFIG2:
[all …]
Dmvebu-devbus.txt9 - compatible: Armada 370/XP SoC are supported using the
10 "marvell,mvebu-devbus" compatible string.
13 "marvell,orion-devbus" compatible string.
15 - reg: A resource specifier for the register space.
16 This is the base address of a chip select within
20 - #address-cells: Must be set to 1
21 - #size-cells: Must be set to 1
22 - ranges: Must be set up to reflect the memory layout with four
23 integer values for each chip-select line in use:
28 - devbus,keep-config This property can optionally be used to keep
[all …]
/Documentation/devicetree/bindings/mfd/
Dtwl4030-power.txt8 - compatible : must be one of the following
9 "ti,twl4030-power"
10 "ti,twl4030-power-reset"
11 "ti,twl4030-power-idle"
12 "ti,twl4030-power-idle-osc-off"
14 The use of ti,twl4030-power-reset is recommended at least on
17 When using ti,twl4030-power-idle, the TI recommended configuration
20 When using ti,twl4030-power-idle-osc-off, the TI recommended
22 down during off-idle. Note that this does not work on all boards
27 - ti,system-power-controller: This indicates that TWL4030 is the
[all …]
Dsprd,sc27xx-pmic.txt6 interface support function in a single chip. It has 6 major functional
8 - DCDCs to support CPU, memory.
9 - LDOs to support both internal and external requirement.
10 - Battery management system, such as charger, fuel gauge.
11 - Audio codec.
12 - User interface function, such as indicator, flash LED and so on.
13 - IC level interface, such as power on/off control, RTC and typec and so on.
16 - compatible: Should be one of the following:
22 - reg: The address of the device chip select, should be 0.
23 - spi-max-frequency: Typically set to 26000000.
[all …]
Dnxp,bbnsm.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: NXP Battery-Backed Non-Secure Module
10 - Jacky Bai <ping.bai@nxp.com>
13 NXP BBNSM serves as non-volatile logic and storage for the system.
14 it Intergrates RTC & ON/OFF control.
16 main chip is power down. A time alarm is generated once the most
17 significant 32 bits of the real-time counter match the value in the
19 The ON/OFF logic inside the BBNSM allows for connecting directly to
[all …]
/Documentation/hwmon/
Dgl518sm.rst21 - Frodo Looijaard <frodol@dds.nl>,
22 - Kyösti Mälkki <kmalkki@cc.hut.fi>
23 - Hong-Gunn Chew <hglinux@gunnet.org>
24 - Jean Delvare <jdelvare@suse.de>
27 -----------
31 For the revision 0x00 chip, the in0, in1, and in2 values (+5V, +3V,
32 and +12V) CANNOT be read. This is a limitation of the chip, not the driver.
34 This driver supports the Genesys Logic GL518SM chip. There are at least
35 two revision of this chip, which we call revision 0x00 and 0x80. Revision
43 Temperatures are measured in degrees Celsius. An alarm goes off while the
[all …]
Dadt7475.rst39 - Jordan Crouse
40 - Hans de Goede
41 - Darrick J. Wong (documentation)
42 - Jean Delvare
46 -----------
49 ADT7476 and ADT7490 chip family. The ADT7473 and ADT7475 differ only in
56 The ADT747x uses the 2-wire interface compatible with the SMBus 2.0
58 temperatures and two (2) or more voltages. It has four (4) 16-bit counters
77 Chip Differences Summary
78 ------------------------
[all …]
Dpc87427.rst21 -----------
23 The National Semiconductor Super I/O chip includes complete hardware
28 This chip also has fan controlling features (up to 4 PWM outputs),
31 The driver assumes that no more than one chip is present, which seems
36 --------------
38 Fan rotation speeds are reported as 14-bit values from a gated clock
47 -----------------
50 always off, always on, manual and automatic. The latter isn't supported
56 ----------------------
60 connected. The integer part can be 8-bit or 9-bit, and can be signed or
[all …]
Dadt7462.rst17 -----------
19 This driver implements support for the Analog Devices ADT7462 chip family.
21 This chip is a bit of a beast. It has 8 counters for measuring fan speed. It
23 two. See the chip documentation for more details about the exact set of
24 configurations. This driver does not allow one to configure the chip; that is
43 ----------------
45 The ADT7462 have a 10-bit ADC and can therefore measure temperatures
55 -------------------
62 * pwm#_auto_point2_pwm and temp#_auto_point2_temp -
64 - point1: Set the pwm speed at a lower temperature bound.
[all …]
Dw83793.rst10 Addresses scanned: I2C 0x2c - 0x2f
15 - Yuan Mu (Winbond Electronics)
16 - Rudolf Marek <r.marek@assembler.cz>
20 -----------------
26 settings. Use 'reset=1' to reset the chip when loading this module.
30 a certain chip. Typical usage is `force_subclients=0,0x2f,0x4a,0x4b`
31 to force the subclients of chip 0x2f on bus 0 to i2c addresses
36 -----------
44 sets of 6-pin CPU VID input.
48 voltage0-2 is 2mV, resolution of voltage3/4/5 is 16mV, 8mV for voltage6,
[all …]
Dadt7411.rst17 -----------
19 This driver implements support for the Analog Devices ADT7411 chip. There may
22 The ADT7411 can use an I2C/SMBus compatible 2-wire interface or an
23 SPI-compatible 4-wire interface. It provides a 10-bit analog to digital
26 loses 2 inputs then). There are high- and low-limit registers for all inputs.
30 sysfs-Interface
31 ---------------
35 in[1-8]_input analog 1-8 input
39 Besides standard interfaces, this driver adds (0 = off, 1 = on):
44 no_average Turn off averaging over 16 samples
[all …]
Dvt1211.rst10 Addresses scanned: none, address read from Super-I/O config space
24 -----------------
29 configuration for channels 1-5.
30 Legal values are in the range of 0-31. Bit 0 maps to
47 -----------
49 The VIA VT1211 Super-I/O chip includes complete hardware monitoring
51 temp2), 1 dedicated voltage (in5) and 2 fans. Additionally, the chip
52 implements 5 universal input channels (UCH1-5) that can be individually
55 This chip also provides manual and automatic control of fan speeds (according
60 connected to the PWM outputs of the VT1211 :-().
[all …]
Ddme1737.rst18 Addresses scanned: none, address read from Super-I/O config space
34 Addresses scanned: none, address read from Super-I/O config space
43 -----------------
52 Include non-standard LPC addresses 0x162e and 0x164e
55 - VIA EPIA SN18000
59 -----------
63 and SCH5127 Super-I/O chips. These chips feature monitoring of 3 temp sensors
64 temp[1-3] (2 remote diodes and 1 internal), 8 voltages in[0-7] (7 external and
65 1 internal) and up to 6 fan speeds fan[1-6]. Additionally, the chips implement
66 up to 5 PWM outputs pwm[1-3,5-6] for controlling fan speeds both manually and
[all …]
/Documentation/networking/device_drivers/hamradio/
Dz8530drv.rst1 .. SPDX-License-Identifier: GPL-2.0
5 SCC.C - Linux driver for Z8530 based HDLC cards for AX.25
14 1. ftp://ftp.ccac.rwth-aachen.de/pub/jr/z8530drv-utils_3.0-3.tar.gz
16 2. ftp://ftp.pspt.fi/pub/ham/linux/ax25/z8530drv-utils_3.0-3.tar.gz
41 AX.25-HOWTO on how to emulate a KISS TNC on network device drivers.
54 please read 'man insmod' that comes with module-init-tools.
64 of your rc.*-files. This has to be done BEFORE you can
77 chip 1
85 escc no # enhanced SCC chip? (8580/85180/85280)
91 chip
[all …]
/Documentation/devicetree/bindings/net/wireless/
Dti,wl1251.txt3 The wl1251 chip can be connected via SPI or via SDIO. This
4 document describes the binding for the SPI connected chip.
7 - compatible : Should be "ti,wl1251"
8 - reg : Chip select address of device
9 - spi-max-frequency : Maximum SPI clocking speed of device in Hz
10 - interrupts : Should contain interrupt line
11 - vio-supply : phandle to regulator providing VIO
14 - ti,wl1251-has-eeprom : boolean, the wl1251 has an eeprom connected, which
16 - ti,power-gpio : GPIO connected to chip's PMEN pin if operated in
18 - Please consult Documentation/devicetree/bindings/spi/spi-bus.txt
[all …]
/Documentation/misc-devices/
Dbh1770glc.rst1 .. SPDX-License-Identifier: GPL-2.0
9 - ROHM BH1770GLC
10 - OSRAM SFH7770
19 -----------
25 ALS produces 16 bit lux values. The chip contains interrupt logic to produce
28 Proximity part contains IR-led driver up to 3 IR leds. The chip measures
35 Proximity low interrupt doesn't exists in the chip. This is simulated
41 Chip state is controlled via runtime pm framework when enabled in config.
49 -----
52 RO - shows detected chip type and version
[all …]
/Documentation/ABI/testing/
Dsysfs-bus-i2c-devices-turris-omnia-mcu8 revisions have board information burned in the ATSHA204-A chip).
21 revisions have board information burned in the ATSHA204-A chip).
35 - ``mcu`` makes the button press event be handled by the MCU to
37 - ``cpu`` makes the button press event be handled by the CPU.
46 Turris Omnia router support powering off the router into true
52 This file is present only if the power off feature is supported
107 Description: (RO) Contains the 64-bit board serial number in hexadecimal
111 revisions have board information burned in the ATSHA204-A chip).
/Documentation/leds/
Dleds-lm3556.rst6 1.5 A Synchronous Boost LED Flash Driver w/ High-Side Current Source
10 - Daniel Jeong
12 Contact:Daniel Jeong(daniel.jeong-at-ti.com, gshark.jeong-at-gmail.com)
15 -----------
29 ON / OFF will be controlled by STROBE pin.
33 OFF::
56 and ON / OFF will be controlled by TORCH pin.
60 OFF::
78 and 4 patterns are pre-defined in indicator_pattern array.
80 According to N-lank, Pulse time and N Period values, different pattern wiill
[all …]
/Documentation/scsi/
D53c700.rst1 .. SPDX-License-Identifier: GPL-2.0
10 This driver supports the 53c700 and 53c700-66 chips. It also supports
12 does sync (-66 and 710 only), disconnects and tag command queueing.
33 Using the Chip Core Driver
36 In order to plumb the 53c700 chip core driver into a working SCSI
37 driver, you need to know three things about the way the chip is wired
45 the SCSI Id from the card bios or whether the chip is wired for
54 asynchronous dividers for the chip. As a general rule of thumb,
56 consistent with the best operation of the chip (although some choose
57 to drive it off the CPU or bus clock rather than going to the expense
[all …]
/Documentation/devicetree/bindings/gnss/
Dsirfstar.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Johan Hovold <johan@kernel.org>
14 chips, starting from the SiRFstarIII which was a chip that was introduced in
23 - $ref: gnss-common.yaml#
24 - $ref: /schemas/serial/serial-peripheral-props.yaml#
29 - csr,gsd4t
30 - csr,csrg05ta03-icje-r
31 - fastrax,uc430
[all …]
/Documentation/sound/
Dalsa-configuration.rst2 Advanced Linux Sound Architecture - Driver Configuration guide
38 ----------
47 limiting card index for auto-loading (1-8);
49 For auto-loading more than one card, specify this option
50 together with snd-card-X aliases.
63 Module snd-pcm-oss
64 ------------------
86 regarding opening the device. When this option is non-zero,
90 Module snd-rawmidi
91 ------------------
[all …]
/Documentation/driver-api/gpio/
Ddrivers-on-gpio.rst6 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,
14 i.e. a LED will turn on/off in response to a GPIO line going high or low
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
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 …]
/Documentation/networking/
Darcnet-hardware.rst1 .. SPDX-License-Identifier: GPL-2.0
11 2) This file is no longer Linux-specific. It should probably be moved out
17 e-mail apenwarr@worldvisions.ca with any settings for your particular card,
39 There are two "types" of ARCnet - STAR topology and BUS topology. This
46 well-designed standard. It uses something called "modified token passing"
47 which makes it completely incompatible with so-called "Token Ring" cards,
63 programming interface also means that when high-performance hardware
73 although they are generally kept down to the Ethernet-style 1500 bytes.
91 - Avery Pennraun <apenwarr@worldvisions.ca>
92 - Stephen A. Wood <saw@hallc1.cebaf.gov>
[all …]
/Documentation/admin-guide/
Drtc.rst7 works even with system power off. Such clocks will normally not track
8 the local time zone or daylight savings time -- unless they dual boot
9 with MS-Windows -- but will instead be set to Coordinated Universal Time
12 The newest non-PC hardware tends to just count seconds, like the time(2)
16 Linux has two largely-compatible userspace RTC API families you may
20 so it's not very portable to non-x86 systems.
35 Old PC/AT-Compatible driver: /dev/rtc
36 --------------------------------------
41 clock that keeps the date and time while your computer is turned off.
44 a few ways (enabling longer alarm periods, and wake-from-hibernate).
[all …]
/Documentation/devicetree/bindings/input/
Dti,palmas-pwrbutton.txt4 about the whole chip see:
10 - compatible: should be one of the following
11 - "ti,palmas-pwrbutton": For Palmas compatible power on button
12 - interrupts: Interrupt number of power button submodule on device.
16 - ti,palmas-long-press-seconds: Duration in seconds which the power
17 button should be kept pressed for Palmas to power off automatically.
20 - ti,palmas-pwron-debounce-milli-seconds: Duration in milliseconds
29 compatible = "ti,palmas-pwrbutton";
30 interrupt-parent = <&tps659038>;
32 ti,palmas-long-press-seconds = <12>;
[all …]

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