| /linux-6.12.1/drivers/mfd/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
44 power supply alarms (hwmon).
57 tristate "Active-semi ACT8945A"
62 Support for the ACT8945A PMIC from Active-semi. This device
63 features three step-down DC/DC converters and four low-dropout
79 sun4i-gpadc-iio and the hwmon driver iio_hwmon.
82 called sun4i-gpadc.
106 tristate "ams AS3722 Power Management IC"
113 tablets etc. It has 4 DC/DC step-down regulators, 3 DC/DC step-down
122 Multifunction Power Management IC. This includes
[all …]
|
| /linux-6.12.1/Documentation/power/ |
| D | pci.rst | 2 PCI Power Management
7 An overview of concepts and the Linux kernel's interfaces related to PCI power
8 management. Based on previous work by Patrick Mochel <mochel@transmeta.com>
11 This document only covers the aspects of power management specific to PCI
13 power management refer to Documentation/driver-api/pm/devices.rst and
14 Documentation/power/runtime_pm.rst.
18 1. Hardware and Platform Support for PCI Power Management
19 2. PCI Subsystem and Device Power Management
20 3. PCI Device Drivers and Power Management
24 1. Hardware and Platform Support for PCI Power Management
[all …]
|
| /linux-6.12.1/drivers/net/wwan/iosm/ |
| D | iosm_ipc_pm.h | 1 /* SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2020-21 Intel Corporation.
18 * union ipc_pm_cond - Conditions for D3 and the sleep message to CP.
35 * enum ipc_mem_host_pm_state - Possible states of the HOST SLEEP finite state
59 * enum ipc_mem_dev_pm_state - Possible states of the DEVICE SLEEP finite state
62 * power management state.
65 * and DOORBELL-IRQ-HPDA(data) values.
68 * @IPC_MEM_DEV_PM_WAKEUP: DOORBELL-IRQ-DEVICE_WAKE(data).
69 * @IPC_MEM_DEV_PM_HOST_SLEEP: DOORBELL-IRQ-HOST_SLEEP(data).
71 * @IPC_MEM_DEV_PM_FORCE_SLEEP: DOORBELL-IRQ-FORCE_SLEEP.
[all …]
|
| /linux-6.12.1/Documentation/driver-api/pm/ |
| D | devices.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 Device Power Management Basics
10 :Copyright: |copy| 2010-2011 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
17 Most of the code in Linux is device drivers, so most of the Linux power
18 management (PM) code is also driver-specific. Most drivers will do very
22 This writeup gives an overview of how drivers interact with system-wide
23 power management goals, emphasizing the models and interfaces that are
25 background for the domain-specific work you'd do with any specific driver.
28 Two Models for Device Power Management
31 Drivers will use one or both of these models to put devices into low-power
[all …]
|
| /linux-6.12.1/drivers/soc/xilinx/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
5 bool "Enable Xilinx Zynq MPSoC Power Management driver"
11 Say yes to enable power management support for ZyqnMP SoC.
12 This driver uses firmware driver as an interface for power
13 management request to firmware. It registers isr to handle
14 power management callbacks from firmware. It registers mailbox client
15 to handle power management callbacks from firmware.
20 bool "Enable Xilinx Event Management Driver"
24 Say yes to enable event management support for Xilinx.
25 This driver uses firmware driver as an interface for event/power
[all …]
|
| /linux-6.12.1/Documentation/userspace-api/ |
| D | dcdbas.rst | 2 Dell Systems Management Base Driver
8 The Dell Systems Management Base Driver provides a sysfs interface for
9 systems management software such as Dell OpenManage to perform system
10 management interrupts and host control actions (system power cycle or
11 power off after OS shutdown) on certain Dell systems.
24 System Management Interrupt
27 On some Dell systems, systems management software must access certain
28 management information via a system management interrupt (SMI). The SMI data
29 buffer must reside in 32-bit address space, and the physical address of the
32 The driver creates the following sysfs entries for systems management
[all …]
|
| /linux-6.12.1/Documentation/devicetree/bindings/arm/apple/ |
| D | apple,pmgr.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Apple SoC Power Manager (PMGR)
10 - Hector Martin <marcan@marcan.st>
13 Apple SoCs include PMGR blocks responsible for power management,
14 which can control various clocks, resets, power states, and
16 with sub-nodes representing individual features.
20 pattern: "^power-management@[0-9a-f]+$"
24 - enum:
[all …]
|
| /linux-6.12.1/Documentation/admin-guide/pm/ |
| D | strategies.rst | 1 .. SPDX-License-Identifier: GPL-2.0
5 Power Management Strategies
13 The Linux kernel supports two major high-level power management strategies.
15 One of them is based on using global low-power states of the whole system in
17 significantly reduced, referred to as :doc:`sleep states <sleep-states>`. The
23 :doc:`system-wide power management <system-wide>`.
25 The other strategy, referred to as the :doc:`working-state power management
26 <working-state>`, is based on adjusting the power states of individual hardware
30 a metastate covering a range of different power states of the system in which
32 ``inactive`` (idle). If they are active, they have to be in power states
[all …]
|
| /linux-6.12.1/Documentation/networking/device_drivers/wifi/intel/ |
| D | ipw2100.rst | 1 .. SPDX-License-Identifier: GPL-2.0
10 - Intel(R) PRO/Wireless 2100 Network Connection
12 Copyright |copy| 2003-2006, Intel Corporation
16 :Version: git-1.1.5
23 2. Release git-1.1.5 Current Features
28 7. Power Management
51 parameters include, without limitation, RF power, spectrum usage,
64 the warranty and/or issues arising from regulatory non-compliance, and
69 modules, and accordingly, condition system-level regulatory approval
72 non-compliant.
[all …]
|
| /linux-6.12.1/Documentation/devicetree/bindings/firmware/xilinx/ |
| D | xlnx,zynqmp-firmware.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/firmware/xilinx/xlnx,zynqmp-firmware.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Nava kishore Manne <nava.kishore.manne@amd.com>
12 description: The zynqmp-firmware node describes the interface to platform
15 can be used by any driver to communicate to PMUFW(Platform Management Unit).
16 These requests include clock management, pin control, device control,
17 power management service, FPGA service and other platform management
23 - description: For implementations complying for Zynq Ultrascale+ MPSoC.
[all …]
|
| /linux-6.12.1/Documentation/devicetree/bindings/power/reset/ |
| D | xlnx,zynqmp-power.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/power/reset/xlnx,zynqmp-power.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Xilinx Zynq MPSoC Power Management
10 - Michal Simek <michal.simek@amd.com>
13 The zynqmp-power node describes the power management configurations.
18 const: xlnx,zynqmp-power
28 that will be the phandle to the intended sub-mailbox
34 xlnx,zynqmp-ipi-mailbox.txt for typical controller that
[all …]
|
| /linux-6.12.1/Documentation/ABI/testing/ |
| D | sysfs-class-scsi_host | 7 Storage Control Unit embeds up to two 4-port controllers in
34 Contact: linux-ide@vger.kernel.org
37 (interface) power management.
42 least possible power when possible. This may sacrifice some
44 power states.
46 max_performance: Generally, this means no power management.
47 Tell the controller to have performance be a priority over power
48 management.
50 medium_power: Tell the controller to enter a lower power state
51 when possible, but do not enter the lowest power state, thus
[all …]
|
| /linux-6.12.1/drivers/base/power/ |
| D | clock_ops.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * drivers/base/power/clock_ops.c - Generic clock manipulation PM callbacks
40 * pm_clk_list_lock - ensure exclusive access for modifying the PM clock
53 __acquires(&psd->lock) in pm_clk_list_lock()
55 mutex_lock(&psd->clock_mutex); in pm_clk_list_lock()
56 spin_lock_irq(&psd->lock); in pm_clk_list_lock()
60 * pm_clk_list_unlock - counterpart to pm_clk_list_lock().
65 __releases(&psd->lock) in pm_clk_list_unlock()
67 spin_unlock_irq(&psd->lock); in pm_clk_list_unlock()
68 mutex_unlock(&psd->clock_mutex); in pm_clk_list_unlock()
[all …]
|
| D | common.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * drivers/base/power/common.c - Common device power management code.
15 #include "power.h"
18 * dev_pm_get_subsys_data - Create or refcount power.subsys_data for device.
21 * If power.subsys_data is NULL, point it to a new object, otherwise increment
31 return -ENOMEM; in dev_pm_get_subsys_data()
33 spin_lock_irq(&dev->power.lock); in dev_pm_get_subsys_data()
35 if (dev->power.subsys_data) { in dev_pm_get_subsys_data()
36 dev->power.subsys_data->refcount++; in dev_pm_get_subsys_data()
38 spin_lock_init(&psd->lock); in dev_pm_get_subsys_data()
[all …]
|
| /linux-6.12.1/drivers/firmware/arm_scmi/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
2 menu "ARM System Control and Management Interface Protocol"
5 tristate "ARM System Control and Management Interface (SCMI) Message Protocol"
8 ARM System Control and Management Interface (SCMI) protocol is a
9 set of operating system-independent software interfaces that are
10 used in system management. SCMI is extensible and currently provides
11 interfaces for: Discovery and self-description of the interfaces
12 it supports, Power domain management which is the ability to place
13 a given device or domain into the various power-saving states that
14 it supports, Performance management which is the ability to control
[all …]
|
| /linux-6.12.1/Documentation/driver-api/media/ |
| D | camera-sensor.rst | 1 .. SPDX-License-Identifier: GPL-2.0
8 This document covers the in-kernel APIs only. For the best practices on
12 CSI-2, parallel and BT.656 buses
13 --------------------------------
15 Please see :ref:`transmitter-receiver`.
18 ---------------
29 elsewhere. Therefore only the pre-determined frequencies are configurable by the
35 Read the ``clock-frequency`` _DSD property to denote the frequency. The driver
41 The preferred way to achieve this is using ``assigned-clocks``,
42 ``assigned-clock-parents`` and ``assigned-clock-rates`` properties. See the
[all …]
|
| /linux-6.12.1/Documentation/devicetree/bindings/mfd/ |
| D | rohm,bd71847-pmic.yaml | 1 # 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#
7 title: ROHM BD71847 and BD71850 Power Management Integrated Circuit
10 - Matti Vaittinen <mazziesaccount@gmail.com>
13 BD71847AMWV and BD71850MWV are programmable Power Management ICs for powering
14 single-core, dual-core, and quad-core SoCs such as NXP-i.MX 8M. It is
18 …s://www.rohm.com/products/power-management/power-management-ic-for-system/industrial-consumer-appl…
19 …s://www.rohm.com/products/power-management/power-management-ic-for-system/industrial-consumer-appl…
[all …]
|
| /linux-6.12.1/Documentation/driver-api/usb/ |
| D | power-management.rst | 1 .. _usb-power-management:
3 Power Management for USB
7 :Date: Last-updated: February 2014
11 ---------
12 * What is Power Management?
17 * Changing the default idle-delay time
19 * The driver interface for Power Management
25 * USB Port Power Control
26 * User Interface for Port Power Control
27 * Suggested Userspace Port Power Policy
[all …]
|
| /linux-6.12.1/kernel/power/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
9 suspend-to-RAM state (e.g. the ACPI S3 state).
30 user-space before invoking suspend. There's a run-time switch
31 at '/sys/power/sync_on_suspend' to configure this behaviour.
32 This setting changes the default for the run-tim switch. Say Y
50 You can suspend your machine with 'echo disk > /sys/power/state'
60 for suspend states like suspend-to-RAM (STR) often don't work very
72 <file:Documentation/power/swsusp-and-swap-files.rst>).
81 For more information take a look at <file:Documentation/power/swsusp.rst>.
122 The default resume partition is the partition that the suspend-
[all …]
|
| /linux-6.12.1/Documentation/devicetree/bindings/regulator/ |
| D | renesas,raa215300.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Renesas RAA215300 Power Management Integrated Circuit (PMIC)
10 - Biju Das <biju.das.jz@bp.renesas.com>
13 The RAA215300 is a high-performance, low-cost 9-channel PMIC designed for
14 32-bit and 64-bit MCU and MPU applications. It supports DDR3, DDR3L, DDR4,
15 and LPDDR4 memory power requirements. The internally compensated regulators,
16 built-in Real-Time Clock (RTC), 32kHz crystal oscillator, and coin cell
17 battery charger provide a highly integrated, small footprint power solution
[all …]
|
| /linux-6.12.1/drivers/net/ipa/ |
| D | ipa_power.c | 1 // SPDX-License-Identifier: GPL-2.0
3 /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
4 * Copyright (C) 2018-2024 Linaro Ltd.
23 * DOC: IPA Power Management
26 * interconnects (buses) it depends on are enabled. Runtime power
27 * management is used to determine whether the core clock and
38 * struct ipa_power - IPA power management information
54 static int ipa_interconnect_init(struct ipa_power *power, in ipa_interconnect_init() argument
62 interconnect = &power->interconnect[0]; in ipa_interconnect_init()
63 for (i = 0; i < power->interconnect_count; i++) { in ipa_interconnect_init()
[all …]
|
| /linux-6.12.1/Documentation/scsi/ |
| D | link_power_management_policy.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 Link Power Managent Policy
7 This parameter allows the user to set the link (interface) power management.
14 least possible power when possible. This may
16 when coming out of lower power states.
18 max_performance Generally, this means no power management. Tell
20 over power management.
22 medium_power Tell the controller to enter a lower power state
23 when possible, but do not enter the lowest power
|
| /linux-6.12.1/include/linux/firmware/imx/svc/ |
| D | pm.h | 1 /* SPDX-License-Identifier: GPL-2.0+ */
4 * Copyright 2017-2018 NXP
7 * Power Management (PM) function. This includes functions for power state
8 * control, clock control, reset control, and wake-up event control.
10 * PM_SVC (SVC) Power Management Service
12 * Module for the Power Management (PM) service.
52 * Defines for SC PM Power Mode
54 #define IMX_SC_PM_PW_MODE_OFF 0 /* Power off */
55 #define IMX_SC_PM_PW_MODE_STBY 1 /* Power in standby */
56 #define IMX_SC_PM_PW_MODE_LP 2 /* Power in low-power */
[all …]
|
| /linux-6.12.1/drivers/soc/fsl/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
15 The global utilities block controls power management, I/O device
16 enabling, power-onreset(POR) configuration monitoring, alternate
31 buffer management facilities for software to interact with
43 which can be used to dump the Management Complex and AIOP
51 (Run Control and Power Management), which performs all device-level
52 tasks associated with power management, such as wakeup source control.
|
| /linux-6.12.1/Documentation/hwmon/ |
| D | sbrmi.rst | 1 .. SPDX-License-Identifier: GPL-2.0-or-later
8 * Sideband Remote Management Interface (SB-RMI) compliant AMD SoC
15 To instantiate this driver on an AMD CPU with SB-RMI
17 management controller (BMC) to the CPU.
22 As mentioned in AMD's APML specification, The SB-RMI address is
27 Datasheet: The SB-RMI interface and protocol along with the Advanced
28 Platform Management Link (APML) Specification is available
31 https://www.amd.com/en/support/tech-docs?keyword=55898
36 -----------
38 The APML provides a way to communicate with the SB Remote Management interface
[all …]
|