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/Documentation/userspace-api/media/dvb/
Dfe-diseqc-reset-overload.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 FE_DISEQC_RESET_OVERLOAD - Restores the power to the antenna subsystem, if it was powered off due -…
31 If the bus has been automatically powered off due to power overload,
34 is manually powered off. Not all Digital TV adapters support this ioctl.
41 On error -1 is returned, and the ``errno`` variable is set
45 :ref:`Generic Error Codes <gen-errors>` chapter.
/Documentation/firmware-guide/acpi/
Dnon-d0-probe.rst1 .. SPDX-License-Identifier: GPL-2.0
10 In some cases it may be preferred to leave certain devices powered off for the
22 The downside of using _DSC is that as the device is not powered on, even if
28 ---
33 the device will not be powered on (put in D0 state) for probe.
36 --------
41 .. code-block:: text
44 0 D0 Device fully powered on
48 4 D3cold Off
53 …cifications/ACPI/6.4/02_Definition_of_Terms/Definition_of_Terms.html#device-power-state-definitions
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/Documentation/devicetree/bindings/media/i2c/
Dadv7343.txt3 The ADV7343 are high speed, digital-to-analog video encoders in a 64-lead LQFP
4 package. Six high speed, 3.3 V, 11-bit video DACs provide support for composite
5 (CVBS), S-Video (Y-C), and component (YPrPb/RGB) analog outputs in standard
10 - compatible: Must be "adi,adv7343"
13 - adi,power-mode-sleep-mode: on enable the current consumption is reduced to
16 - adi,power-mode-pll-ctrl: PLL and oversampling control. This control allows
17 internal PLL 1 circuit to be powered down and the
18 oversampling to be switched off.
19 - ad,adv7343-power-mode-dac: array configuring the power on/off DAC's 1..6,
20 0 = OFF and 1 = ON, Default value when this
[all …]
/Documentation/ABI/testing/
Dsysfs-bus-usb-devices-usbsevseg1 What: /sys/bus/usb/.../powered
5 Description: Controls whether the device's display will powered.
6 A value of 0 is off and a non-zero value is on.
28 hex: each character is between 0-15
29 ascii: each character is between '0'-'9' and 'A'-'F'.
Dsysfs-driver-bd9571mwv-regulator1 What: /sys/bus/i2c/devices/.../bd9571mwv-regulator.*.auto/backup_mode
6 if DDR power rails will be kept powered during system suspend.
7 ("on"/"1" = enabled, "off"/"0" = disabled).
18 wake-up switch,
19 2. Switch accessory power switch off, to prepare for
Dsysfs-driver-samsung-laptop4 Contact: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
14 - "silent"
15 - "normal"
16 - "overclock"
31 - 0 means normal battery mode (100% charge)
32 - 1 means battery life extender mode (80% charge)
39 when your laptop is powered off.
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
47 low power mode. The router can be powered on by pressing the
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).
Dsysfs-class-remoteproc19 - "offline"
20 - "suspended"
21 - "running"
22 - "crashed"
23 - "invalid"
25 "offline" means the remote processor is powered off.
41 - "start"
42 - "stop"
55 Contact: Suman Anna <s-anna@ti.com>
64 Contact: Bjorn Andersson <bjorn.andersson@linaro.org>, Ohad Ben-Cohen <ohad@wizery.com>
[all …]
/Documentation/devicetree/bindings/sound/
Drt5660.txt7 - compatible : "realtek,rt5660".
9 - reg : The I2C address of the device.
13 - clocks: The phandle of the master clock to the CODEC
14 - clock-names: Should be "mclk"
16 - realtek,in1-differential
17 - realtek,in3-differential
18 Boolean. Indicate MIC1/3 input are differential, rather than single-ended.
20 - realtek,poweroff-in-suspend
21 Boolean. If the codec will be powered off in suspend, the resume should be
24 - realtek,dmic1-data-pin
/Documentation/devicetree/bindings/power/
Dstarfive,jh7110-pmu.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/power/starfive,jh7110-pmu.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Walker Chen <walker.chen@starfivetech.com>
14 powered on/off by software based on different application scenes to save power.
19 - starfive,jh7110-pmu
27 "#power-domain-cells":
31 - compatible
32 - reg
[all …]
Dpower-domain.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/power/power-domain.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Rafael J. Wysocki <rjw@rjwysocki.net>
11 - Kevin Hilman <khilman@kernel.org>
12 - Ulf Hansson <ulf.hansson@linaro.org>
25 \#power-domain-cells property in the PM domain provider node.
29 pattern: "^(power-controller|power-domain|performance-domain)([@-].*)?$"
31 domain-idle-states:
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/Documentation/misc-devices/
Dtps6594-pfsm.rst1 .. SPDX-License-Identifier: GPL-2.0
12 Strictly speaking, PFSM (Pre-configurable Finite State Machine) is not
17 some voltage domains remain energized while others can be off.
23 ---------------
25 - tps6594-q1
26 - tps6593-q1
27 - lp8764-q1
32 drivers/misc/tps6594-pfsm.c
43 All device resources are powered down. The processor is off, and
48 required to be always-on, are turned off (low-power).
[all …]
/Documentation/devicetree/bindings/leds/
Dregulator-led.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/regulator-led.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Linus Walleij <linus.walleij@linaro.org>
13 Regulator LEDs are powered by a single regulator such that they can
14 be turned on or off by enabling or disabling the regulator. The available
20 - $ref: common.yaml#
27 const: regulator-led
29 vled-supply:
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/Documentation/arch/arm/
Dcluster-pm-race-avoidance.rst2 Cluster-wide Power-up/power-down race avoidance algorithm
16 ---------
19 ability to turn off individual CPUs when the system is idle, reducing
23 to have the ability to turn off entire clusters.
25 Turning entire clusters off and on is a risky business, because it
29 cluster-level operations are only performed when it is truly safe to do
35 disabling those mechanisms may itself be a non-atomic operation (such as
38 power-down and power-up at the cluster level.
46 -----------
50 - DOWN
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/Documentation/trace/coresight/
Dcoresight-cpu-debug.rst9 ------------
11 Coresight CPU debug module is defined in ARMv8-a architecture reference manual
13 debug module and it is mainly used for two modes: self-hosted debug and
16 explore debugging method which rely on self-hosted debug mode, this document
19 The debug module provides sample-based profiling extension, which can be used
21 every CPU has one dedicated debug module to be connected. Based on self-hosted
29 --------------
31 - During driver registration, it uses EDDEVID and EDDEVID1 - two device ID
32 registers to decide if sample-based profiling is implemented or not. On some
36 - At the time this documentation was written, the debug driver mainly relies on
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Dcoresight-ect.rst1 .. SPDX-License-Identifier: GPL-2.0
11 --------------------
21 0 C 0----------->: : +======>(other CTI channel IO)
22 0 P 0<-----------: : v
24 0000000 : CTI :<=========>*CTM*<====>: CTI :---+
25 ####### in_trigs : : (id 0-3) ***** ::::::: v
26 # ETM #----------->: : ^ #######
27 # #<-----------: : +---# ETR #
50 The hardware trigger signals can also be connected to non-CoreSight devices
51 (e.g. UART), or be propagated off chip as hardware IO lines.
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/Documentation/devicetree/bindings/clock/
Dimx6q-clock.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/clock/imx6q-clock.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Abel Vesa <abelvesa@kernel.org>
11 - Peng Fan <peng.fan@nxp.com>
15 const: fsl,imx6q-ccm
25 - description: CCM interrupt request 1
26 - description: CCM interrupt request 2
28 '#clock-cells':
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/Documentation/devicetree/bindings/leds/backlight/
Dcommon.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Lee Jones <lee@kernel.org>
11 - Daniel Thompson <daniel.thompson@linaro.org>
12 - Jingoo Han <jingoohan1@gmail.com>
17 LED powered by a boost converter.
20 default-brightness:
23 system on start-up. The brightness should not exceed the brightness the
27 max-brightness:
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/Documentation/driver-api/usb/
Dpower-management.rst1 .. _usb-power-management:
7 :Date: Last-updated: February 2014
11 ---------
17 * Changing the default idle-delay time
31 -------------------------
35 component is ``suspended`` it is in a nonfunctional low-power state; it
36 might even be turned off completely. A suspended component can be
37 ``resumed`` (returned to a functional full-power state) when the kernel
45 device is turned off while the system as a whole remains running, we
67 ----------------------
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/Documentation/staging/
Dremoteproc.rst10 of operating system, whether it's Linux or any other flavor of real-time OS.
12 OMAP4, for example, has dual Cortex-A9, dual Cortex-M3 and a C64x+ DSP.
13 In a typical configuration, the dual cortex-A9 is running Linux in a SMP
18 control (power on, load firmware, power off) those remote processors while
22 platform-specific remoteproc drivers only need to provide a few low-level
24 (for more information about the virtio-based rpmsg bus and its drivers,
41 If the remote processor is already powered on, this function immediately
54 Power off a remote processor (previously booted with rproc_boot()).
57 without really powering off the device.
100 * our remote processor is now powered on... give it some work
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/Documentation/hwmon/
Dnzxt-smart2.rst1 .. SPDX-License-Identifier: GPL-2.0-or-later
3 Kernel driver nzxt-smart2
8 - NZXT RGB & Fan controller
9 - NZXT Smart Device v2
12 -----------
25 -----------
29 If fans are plugged in/unplugged while the system is powered on, the driver
43 -------------
46 fan[1-3]_input Fan speed monitoring (in rpm).
47 curr[1-3]_input Current supplied to the fan (in milliamperes).
[all …]
/Documentation/devicetree/bindings/mfd/
Drohm,bd71847-pmic.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/mfd/rohm,bd71847-pmic.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Matti Vaittinen <mazziesaccount@gmail.com>
14 single-core, dual-core, and quad-core SoCs such as NXP-i.MX 8M. It is
18 …/www.rohm.com/products/power-management/power-management-ic-for-system/industrial-consumer-applica…
19 …//www.rohm.com/products/power-management/power-management-ic-for-system/industrial-consumer-applic…
24 - rohm,bd71847
25 - rohm,bd71850
[all …]
/Documentation/devicetree/bindings/regulator/
Dpfuze100.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Robin Gong <yibin.gong@nxp.com>
14 --PFUZE100
16 --PFUZE200
18 --PFUZE3000
20 --PFUZE3001
27 pattern: "^pmic@[0-9]$"
31 - fsl,pfuze100
[all …]
/Documentation/devicetree/bindings/pinctrl/
Dnvidia,tegra124-xusb-padctl.txt7 needed for USB. For the new binding, see ../phy/nvidia,tegra-xusb-padctl.txt.
12 associated PHY that must be powered up before the pad can be used.
14 This document defines the device-specific binding for the XUSB pad controller.
16 Refer to pinctrl-bindings.txt in this directory for generic information about
17 pin controller device tree bindings and ../phy/phy-bindings.txt for details on
21 --------------------
22 - compatible: For Tegra124, must contain "nvidia,tegra124-xusb-padctl".
23 Otherwise, must contain '"nvidia,<chip>-xusb-padctl",
24 "nvidia-tegra124-xusb-padctl"', where <chip> is tegra132 or tegra210.
25 - reg: Physical base address and length of the controller's registers.
[all …]
/Documentation/scsi/
Dqlogicfas.rst1 .. SPDX-License-Identifier: GPL-2.0
15 * IQ-PCI
16 * IQ-PCI-10
17 * IQ-PCI-D
21 Nor does it support the PCI-Basic, which is supported by the
32 can be a simple ctrl-alt-delete with a boot floppy, or by using
50 devices may not have been just powered up, or if you are restarting
72 that the file copied properly. (Turn off all caching when doing these

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