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/linux/arch/arm/mach-pxa/
H A Dpxa2xx-regs.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * arch/arm/mach-pxa/include/mach/pxa2xx-regs.h
5 * Taken from pxa-regs.h by Russell King
14 #include "pxa-regs.h"
17 * Power Manager
20 #define PMCR __REG(0x40F00000) /* Power Manager Control Register */
21 #define PSSR __REG(0x40F00004) /* Power Manager Sleep Status Register */
22 #define PSPR __REG(0x40F00008) /* Power Manager Scratch Pad Register */
23 #define PWER __REG(0x40F0000C) /* Power Manager Wake-up Enable Register */
24 #define PRER __REG(0x40F00010) /* Power Manager GPIO Rising-Edge Detect Enable Register */
[all …]
H A Dpxa3xx-regs.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * arch/arm/mach-pxa/include/mach/pxa3xx-regs.h
13 #include "pxa-regs.h"
24 * Service Power Management Unit (MPMU)
26 #define PMCR __REG(0x40F50000) /* Power Manager Control Register */
27 #define PSR __REG(0x40F50004) /* Power Manager S2 Status Register */
28 #define PSPR __REG(0x40F50008) /* Power Manager Scratch Pad Register */
29 #define PCFR __REG(0x40F5000C) /* Power Manager General Configuration Register */
30 #define PWER __REG(0x40F50010) /* Power Manager Wake-up Enable Register */
31 #define PWSR __REG(0x40F50014) /* Power Manager Wake-up Status Register */
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/linux/Documentation/hwmon/
H A Ducd9000.rst11 Addresses scanned: -
15 - http://focus.ti.com/lit/ds/symlink/ucd90120.pdf
16 - http://focus.ti.com/lit/ds/symlink/ucd90124.pdf
17 - http://focus.ti.com/lit/ds/symlink/ucd90160.pdf
18 - http://focus.ti.com/lit/ds/symlink/ucd90320.pdf
19 - http://focus.ti.com/lit/ds/symlink/ucd9090.pdf
20 - http://focus.ti.com/lit/ds/symlink/ucd90910.pdf
22 Author: Guenter Roeck <linux@roeck-us.net>
26 -----------
30 The UCD90120 Power Supply Sequencer and System Health Monitor monitors and
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/linux/Documentation/arch/arm/
H A Dcluster-pm-race-avoidance.rst2 Cluster-wide Power-up/power-down race avoidance algorithm
16 ---------
20 power consumption and thermal dissipation.
29 cluster-level operations are only performed when it is truly safe to do
34 are not immediately enabled when a cluster powers up. Since enabling or
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
51 - COMING_UP
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/linux/drivers/staging/iio/frequency/
H A Dad9832.h1 /* SPDX-License-Identifier: GPL-2.0+ */
15 * struct ad9832_platform_data - platform specific information
16 * @freq0: power up freq0 tuning word in Hz
17 * @freq1: power up freq1 tuning word in Hz
18 * @phase0: power up phase0 value [0..4095] correlates with 0..2PI
19 * @phase1: power up phase1 value [0..4095] correlates with 0..2PI
20 * @phase2: power up phase2 value [0..4095] correlates with 0..2PI
21 * @phase3: power up phase3 value [0..4095] correlates with 0..2PI
/linux/Documentation/admin-guide/pm/
H A Dsleep-states.rst1 .. SPDX-License-Identifier: GPL-2.0
13 Sleep states are global low-power states of the entire system in which user
22 the Linux kernel can support up to four system sleep states, including
23 hibernation and up to three variants of system suspend. The sleep states that
28 Suspend-to-Idle
29 ---------------
31 This is a generic, pure software, light-weight variant of system suspend (also
34 I/O devices into low-power states (possibly lower-power than available in the
38 The system is woken up from this state by in-band interrupts, so theoretically
40 also be set up as wakeup devices for S2Idle.
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/linux/Documentation/networking/pse-pd/
H A Dintroduction.rst1 .. SPDX-License-Identifier: GPL-2.0
3 Power Sourcing Equipment (PSE) in IEEE 802.3 Standard
7 --------
9 Power Sourcing Equipment (PSE) is essential in networks for delivering power
11 switches and hubs that supply power to Powered Devices (PDs) such as IP
15 ----------------
18 power alongside data over Ethernet cables, typically associated with Power over
21 PoDL PSE, or Power over Data Lines PSE, specifically denotes PSEs operating
22 with single balanced twisted-pair PHYs, as per Clause 104 of IEEE 802.3. PoDL
23 is significant in contexts like automotive and industrial controls where power
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/linux/arch/arm64/boot/dts/xilinx/
H A Dzynqmp-zc1751-xm019-dc5.dts1 // SPDX-License-Identifier: GPL-2.0+
3 * dts file for Xilinx ZynqMP zc1751-xm019-dc5
5 * (C) Copyright 2015 - 2021, Xilinx, Inc.
11 /dts-v1/;
14 #include "zynqmp-clk-ccf.dtsi"
15 #include <dt-bindings/gpio/gpio.h>
16 #include <dt-bindings/pinctrl/pinctrl-zynqmp.h>
19 model = "ZynqMP zc1751-xm019-dc5 RevA";
20 compatible = "xlnx,zynqmp-zc1751", "xlnx,zynqmp";
33 stdout-path = "serial0:115200n8";
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/linux/Documentation/devicetree/bindings/power/
H A Dfsl,imx-gpcv2.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/power/fsl,imx-gpcv2.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Freescale i.MX General Power Controller v2
10 - Andrey Smirnov <andrew.smirnov@gmail.com>
13 The i.MX7S/D General Power Control (GPC) block contains Power Gating
14 Control (PGC) for various power domains.
16 Power domains contained within GPC node are generic power domain
18 Documentation/devicetree/bindings/power/power-domain.yaml, which are
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/linux/arch/arm/mach-exynos/
H A Dplatsmp.c1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
5 // Cloned from linux/arch/arm/mach-vexpress/platsmp.c
17 #include <linux/soc/samsung/exynos-regs-pmu.h>
29 /* XXX exynos_pen_release is cargo culted code - DO NOT COPY XXX */
30 volatile int exynos_pen_release = -1;
70 * having been woken up - this shouldn't happen in platform_do_lowpower()
72 * Just note it happening - when we're woken, we can report in platform_do_lowpower()
81 * exynos_cpu_power_down() - power down the specified cpu
82 * @cpu: the cpu to power down
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/linux/Documentation/power/
H A Druntime_pm.rst2 Runtime Power Management Framework for I/O Devices
5 (C) 2009-2011 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
14 Support for runtime power management (runtime PM) of I/O devices is provided
15 at the power management core (PM core) level by means of:
17 * The power management workqueue pm_wq in which bus types and device drivers can
18 put their PM-related work items. It is strongly recommended that pm_wq be
20 them to be synchronized with system-wide power transitions (suspend to RAM,
22 include/linux/pm_runtime.h and defined in kernel/power/main.c.
24 * A number of runtime PM fields in the 'power' member of 'struct device' (which
31 * A set of helper functions defined in drivers/base/power/runtime.c that can be
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H A Dcharger-manager.rst7 Charger Manager provides in-kernel battery charger management that
8 requires temperature monitoring during suspend-to-RAM state
12 Charger Manager is a platform_driver with power-supply-class entries.
13 An instance of Charger Manager (a platform-device created with Charger-Manager)
24 A system may have multiple chargers (or power sources) and some of
26 own power-supply-class and each power-supply-class can provide
28 aggregates charger-related information from multiple sources and
29 shows combined information as a single power-supply-class.
31 * Support for in suspend-to-RAM polling (with suspend_again callback)
32 While the battery is being charged and the system is in suspend-to-RAM,
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/linux/Documentation/devicetree/bindings/mfd/
H A Dmax77620.txt1 MAX77620 Power management IC from Maxim Semiconductor.
4 -------------------
5 - compatible: Must be one of
9 - reg: I2C device address.
12 -------------------
13 - interrupts: The interrupt on the parent the controller is
15 - interrupt-controller: Marks the device node as an interrupt controller.
16 - #interrupt-cells: is <2> and their usage is compliant to the 2 cells
17 variant of <../interrupt-controller/interrupts.txt>
19 are defined at dt-bindings/mfd/max77620.h.
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/linux/arch/arm64/boot/dts/sophgo/
H A Dsg2000-milkv-duo-module-01-evb.dts1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
3 /dts-v1/;
5 #include "sg2000-milkv-duo-module-01.dtsi"
8 model = "Milk-V Duo Module 01 Evaluation Board";
9 compatible = "milkv,duo-module-01-evb", "milkv,duo-module-01", "sophgo,sg2000";
12 stdout-path = "serial0:115200n8";
17 sdhci0_cfg: sdhci0-cfg {
18 sdhci0-cd-pins {
20 bias-pull-up;
21 drive-strength-microamp = <10800>;
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/linux/Documentation/input/devices/
H A Djoystick-parport.rst3 .. _joystick-parport:
9 :Copyright: |copy| 1998-2000 Vojtech Pavlik <vojtech@ucw.cz>
10 :Copyright: |copy| 1998 Andree Borrmann <a.borrmann@tu-bs.de>
18 Any information in this file is provided as-is, without any guarantee that
36 Many console and 8-bit computer gamepads and joysticks are supported. The
40 ------------
49 the computer's side (and thus timing insensitive). To allow up to 5 NES
57 The main problem with PC parallel ports is that they don't have +5V power
58 source on any of their pins. So, if you want a reliable source of power
59 for your pads, use either keyboard or joystick port, and make a pass-through
[all …]
/linux/Documentation/driver-api/thermal/
H A Dcpu-idle-cooling.rst1 .. SPDX-License-Identifier: GPL-2.0
8 ----------
13 act on a cooling device to mitigate the dissipated power. When the
20 to the static leakage. The only solution is to power down the
24 Last but not least, the system can ask for a specific power budget but
25 because of the OPP density, we can only choose an OPP with a power
26 budget lower than the requested one and under-utilize the CPU, thus
27 losing performance. In other words, one OPP under-utilizes the CPU
28 with a power less than the requested power budget and the next OPP
29 exceeds the power budget. An intermediate OPP could have been used if
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/linux/include/uapi/linux/
H A Dpmu.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
4 * which controls battery charging and system power on PowerBook 3400
18 #define PMU_POWER_CTRL0 0x10 /* control power of some devices */
19 #define PMU_POWER_CTRL 0x11 /* control power of some devices */
21 #define PMU_ADB_POLL_OFF 0x21 /* disable ADB auto-poll */
23 #define PMU_WRITE_NVRAM 0x33 /* write non-volatile RAM */
25 #define PMU_READ_NVRAM 0x3b /* read non-volatile RAM */
26 #define PMU_SET_RTC 0x30 /* set real-time clock */
27 #define PMU_READ_RTC 0x38 /* read real-time clock */
28 #define PMU_SET_VOLBUTTON 0x40 /* set volume up/down position */
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/linux/drivers/power/sequencing/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
4 tristate "Power Sequencing support"
6 Say Y here to enable the Power Sequencing subsystem.
8 This subsystem is designed to control power to devices that share
9 complex resources and/or require specific power sequences to be run
10 during power-up.
21 Say Y here to enable the power sequencing driver for Qualcomm
25 and WLAN modules whose power is controlled by the PMU module. As the
26 former two share the power-up sequence which is executed by the PMU,
27 this driver is needed for correct power control or else we'd risk not
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/linux/arch/arm/mach-meson/
H A Dplatsmp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
23 #define MESON_SMP_SRAM_CPU_CTRL_ADDR_REG(c) (0x04 + ((c - 1) << 2))
31 #define MESON_CPU_PWR_A9_MEM_PD0_M(c) (0x0f << (32 - (c * 4)))
106 meson_smp_prepare_cpus("arm,cortex-a5-scu", "amlogic,meson8b-pmu", in meson8b_smp_prepare_cpus()
107 "amlogic,meson8b-smp-sram"); in meson8b_smp_prepare_cpus()
112 meson_smp_prepare_cpus("arm,cortex-a9-scu", "amlogic,meson8-pmu", in meson8_smp_prepare_cpus()
113 "amlogic,meson8-smp-sram"); in meson8_smp_prepare_cpus()
121 * system without power-cycling, or when taking the CPU offline and in meson_smp_begin_secondary_boot()
128 * SCU Power on CPU (needs to be done before starting the CPU, in meson_smp_begin_secondary_boot()
143 return -ETIMEDOUT; in meson_smp_finalize_secondary_boot()
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/linux/Documentation/devicetree/bindings/pinctrl/
H A Dpinctrl-max77620.txt1 Pincontrol driver for MAX77620 Power management IC from Maxim Semiconductor.
6 Please refer file <devicetree/bindings/pinctrl/pinctrl-bindings.txt>
11 --------------------------
14 - pinctrl-names: A pinctrl state named per <pinctrl-bindings.txt>.
15 - pinctrl[0...n]: Properties to contain the phandle for pinctrl states per
16 <pinctrl-bindings.txt>.
19 sub-node have following properties:
22 ------------------
23 - pins: List of pins. Valid values of pins properties are:
27 -------------------
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/linux/drivers/net/wireless/intel/iwlegacy/
H A Dcsr.h8 * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
69 * whenever platform supplies power to device, even when device is in
70 * low power states due to driver-invoked device resets
71 * (e.g. CSR_RESET_REG_FLAG_SW_RESET) or uCode-driven power-saving modes.
74 * these provide simple PCI bus access, without waking up the MAC.
77 * The MAC (uCode processor, etc.) does not need to be powered up for accessing
86 #define CSR_INT_COALESCING (CSR_BASE+0x004) /* accum ints, 32-usec units */
100 * 31-8: Reserved
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/linux/arch/arm/boot/dts/xilinx/
H A Dzynq-zc702.dts1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2011 - 2014 Xilinx
6 /dts-v1/;
7 #include "zynq-7000.dtsi"
8 #include <dt-bindings/gpio/gpio.h>
12 compatible = "xlnx,zynq-zc702", "xlnx,zynq-7000";
31 stdout-path = "serial0:115200n8";
34 gpio-keys {
35 compatible = "gpio-keys";
37 switch-14 {
[all …]
H A Dzynq-zc706.dts1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2011 - 2014 Xilinx
6 /dts-v1/;
7 #include "zynq-7000.dtsi"
11 compatible = "xlnx,zynq-zc706", "xlnx,zynq-7000";
30 stdout-path = "serial0:115200n8";
34 compatible = "usb-nop-xceiv";
35 #phy-cells = <0>;
40 ps-clk-frequency = <33333333>;
45 phy-mode = "rgmii-id";
[all …]
/linux/drivers/macintosh/
H A Dmediabay.c1 // SPDX-License-Identifier: GPL-2.0-or-later
32 #define MB_FCR32(bay, r) ((bay)->base + ((r) >> 2))
33 #define MB_FCR8(bay, r) (((volatile u8 __iomem *)((bay)->base)) + (r))
48 void (*power)(struct media_bay_info *bay, int on_off); member
81 * Consider the media-bay ID value stable if it is the same for
86 /* Wait after powering up the media bay this delay in ms
92 * Hold the media-bay reset signal true for this many ticks
105 * Wait this many ticks after an IDE device (e.g. CD-ROM) is inserted
115 mb_powering_up, /* power bit set, waiting MB_POWER_DELAY */
120 mb_powering_down /* Powering down (avoid too fast down/up) */
[all …]
/linux/drivers/acpi/
H A Ddevice_pm.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * drivers/acpi/device_pm.c - ACPI device power management routines.
27 * acpi_power_state_string - String representation of ACPI device power state.
28 * @state: ACPI device power state to return the string representation of.
53 status = acpi_evaluate_integer(device->handle, "_PSC", NULL, &psc); in acpi_dev_pm_explicit_get()
55 return -ENODEV; in acpi_dev_pm_explicit_get()
62 * acpi_device_get_power - Get power state of an ACPI device.
63 * @device: Device to get the power state of.
64 * @state: Place to store the power state of the device.
66 * This function does not update the device's power.state field, but it may
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