| /linux-3.3/Documentation/power/regulator/ |
| D | overview.txt | 10 The intention is to allow systems to dynamically control regulator power output
11 in order to save power and prolong battery life. This applies to both voltage
22 Some terms used in this document:-
24 o Regulator - Electronic device that supplies power to other devices.
28 Input Voltage -> Regulator -> Output Voltage
31 o PMIC - Power Management IC. An IC that contains numerous regulators
35 o Consumer - Electronic device that is supplied power by a regulator.
36 Consumers can be classified into two types:-
40 power supply. Its supply voltage is set by the hardware,
47 o Power Domain - Electronic circuit that is supplied its input power by the
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| /linux-3.3/Documentation/trace/ |
| D | events-power.txt | 2 Subsystem Trace Points: power
4 The power tracing system captures events related to power transitions
7 o Power state switch which reports events related to suspend (S-states),
8 cpuidle (C-states) and cpufreq (P-states)
10 o Power domains related changes and transitions
15 Cf. include/trace/events/power.h for the events definitions.
17 1. Power state switch events
21 -----------------
23 A 'cpu' event class gathers the CPU-related events: cpuidle and
35 Note: the value of '-1' or '4294967295' for state means an exit from the current state,
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| /linux-3.3/arch/arm/mach-omap2/ |
| D | powerdomain-common.c | 4 * Copyright (C) 2010-2011 Texas Instruments, Inc.
7 * Derived from mach-omap2/powerdomain.c written by Paul Walmsley
18 #include "cm-regbits-34xx.h"
19 #include "cm-regbits-44xx.h"
20 #include "prm-regbits-34xx.h"
21 #include "prm-regbits-44xx.h"
25 * Notice that the names here are not according to each power
28 /* OMAP3 and OMAP4 Memory Onstate Masks (common across all power domains) */
35 /* OMAP3 and OMAP4 Memory Retstate Masks (common across all power domains) */
65 return -EEXIST; in omap2_pwrdm_get_mem_bank_onstate_mask()
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| D | pm44xx.c | 2 * OMAP4 Power Management Routines
4 * Copyright (C) 2010-2011 Texas Instruments, Inc.
46 pwrst->saved_state = pwrdm_read_next_pwrst(pwrst->pwrdm); in omap4_pm_suspend()
47 pwrst->saved_logic_state = pwrdm_read_logic_retst(pwrst->pwrdm); in omap4_pm_suspend()
50 /* Set targeted power domain states by suspend */ in omap4_pm_suspend()
52 omap_set_pwrdm_state(pwrst->pwrdm, pwrst->next_state); in omap4_pm_suspend()
53 pwrdm_set_logic_retst(pwrst->pwrdm, PWRDM_POWER_OFF); in omap4_pm_suspend()
57 * For MPUSS to hit power domain retention(CSWR or OSWR), in omap4_pm_suspend()
58 * CPU0 and CPU1 power domains need to be in OFF or DORMANT state, in omap4_pm_suspend()
59 * since CPU power domain CSWR is not supported by hardware in omap4_pm_suspend()
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| D | powerdomains44xx_data.c | 2 * OMAP4 Power domains framework
4 * Copyright (C) 2009-2011 Texas Instruments, Inc.
5 * Copyright (C) 2009-2011 Nokia Corporation
8 * Benoit Cousson (b-cousson@ti.com)
13 * with the public linux-omap@vger.kernel.org mailing list and the
15 * up-to-date with the file contents.
27 #include "prcm-common.h"
29 #include "prm-regbits-44xx.h"
33 /* core_44xx_pwrdm: CORE power domain */
59 /* gfx_44xx_pwrdm: 3D accelerator power domain */
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| D | clockdomains2xxx_3xxx_data.c | 4 * Copyright (C) 2008-2011 Texas Instruments, Inc.
5 * Copyright (C) 2008-2010 Nokia Corporation
15 * software-controllable dependencies. Non-software-controllable
20 * The overly-specific dep_bit names are due to a bit name collision
26 * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE
30 * To-Do List
31 * -> Port the Sleep/Wakeup dependencies for the domains
32 * from the Power domain framework
41 #include "cm-regbits-24xx.h"
42 #include "cm-regbits-34xx.h"
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| D | clockdomains2420_data.c | 4 * Copyright (C) 2008-2011 Texas Instruments, Inc.
5 * Copyright (C) 2008-2010 Nokia Corporation
14 * wkdep_srcs are really just software-controllable dependencies.
15 * Non-software-controllable dependencies do exist, but they are not
20 * The overly-specific dep_bit names are due to a bit name collision
26 * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE
30 * To-Do List
31 * -> Port the Sleep/Wakeup dependencies for the domains
32 * from the Power domain framework
41 #include "cm-regbits-24xx.h"
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| D | clockdomains2430_data.c | 4 * Copyright (C) 2008-2009 Texas Instruments, Inc.
5 * Copyright (C) 2008-2010 Nokia Corporation
14 * wkdep_srcs are really just software-controllable dependencies.
15 * Non-software-controllable dependencies do exist, but they are not
20 * The overly-specific dep_bit names are due to a bit name collision
26 * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE
30 * To-Do List
31 * -> Port the Sleep/Wakeup dependencies for the domains
32 * from the Power domain framework
41 #include "cm-regbits-24xx.h"
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| /linux-3.3/drivers/pci/hotplug/ |
| D | rpaphp_core.c | 2 * PCI Hot Plug Controller Driver for RPA-compliant PPC64 platform.
35 #include <asm/pci-bridge.h> /* for pci_controller */
56 * set_attention_status - set attention LED
60 * echo 0 > attention -- set LED OFF
61 * echo 1 > attention -- set LED ON
62 * echo 2 > attention -- set LED ID(identify, light is blinking)
67 struct slot *slot = (struct slot *)hotplug_slot->private; in set_attention_status()
79 rc = rtas_set_indicator(DR_INDICATOR, slot->index, value); in set_attention_status()
81 hotplug_slot->info->attention_status = value; in set_attention_status()
87 * get_power_status - get power status of a slot
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| /linux-3.3/include/linux/ |
| D | pm_domain.h | 2 * pm_domain.h - Definitions and headers related to device power domains.
19 GPD_STATE_REPEAT, /* Power off in progress, to be repeated */
46 struct list_head gpd_list_node; /* Node in the global PM domains list */
55 atomic_t sd_count; /* Number of subdomains with power "on" */
63 bool suspend_power_off; /* Power status before system suspend */
64 bool dev_irq_safe; /* Device callbacks are IRQ-safe */
70 s64 break_even_ns; /* Power break even for the entire domain. */
110 return to_gpd_data(dev->power.subsys_data->domain_data); in dev_gpd_data()
148 return ERR_PTR(-ENOSYS); in dev_to_genpd()
154 return -ENOSYS; in __pm_genpd_add_device()
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| D | pm.h | 2 * pm.h - Power management interface
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
39 * Device power management
45 extern const char power_group_name[]; /* = "power" */
55 * struct dev_pm_ops - device PM callbacks
57 * Several device power state transitions are externally visible, affecting
60 * internal transitions to various low-power modes which are transparent
66 * involved. First, the PM core executes callbacks provided by PM domains,
67 * device types, classes and bus types. They are the subsystem-level callbacks
70 * collaborate with the subsystem-level callbacks to achieve the goals
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| /linux-3.3/Documentation/hwmon/ |
| D | asc7621 | 15 Andigilog has both the PECI and pre-PECI versions of the Heceta-6, as
16 Intel calls them. Heceta-6e has high frequency PWM and Heceta-6p has
18 Heceta-6e part and aSC7621 is the Heceta-6p part. They are both in
23 have used registers below 20h for vendor-specific functions in addition
24 to those in the Intel-specified vendor range.
27 The fan speed control uses this finer value to produce a "step-less" fan
28 PWM output. These two bytes are "read-locked" to guarantee that once a
29 high or low byte is read, the other byte is locked-in until after the
32 sheet says 10-bits of resolution, although you may find the lower bits
42 We offer GPIO features on the former VID pins. These are open-drain
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| /linux-3.3/Documentation/power/ |
| D | devices.txt | 1 Device Power Management
3 Copyright (c) 2010-2011 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
7 Most of the code in Linux is device drivers, so most of the Linux power
8 management (PM) code is also driver-specific. Most drivers will do very
12 This writeup gives an overview of how drivers interact with system-wide
13 power management goals, emphasizing the models and interfaces that are
15 background for the domain-specific work you'd do with any specific driver.
18 Two Models for Device Power Management
20 Drivers will use one or both of these models to put devices into low-power
24 Drivers can enter low-power states as part of entering system-wide
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| D | opp.txt | 5 (C) 2009-2010 Nishanth Menon <nm@ti.com>, Texas Instruments Incorporated
8 --------
19 Complex SoCs of today consists of a multiple sub-modules working in conjunction.
22 facilitate this, sub-modules in a SoC are grouped into domains, allowing some
23 domains to run at lower voltage and frequency while other domains are loaded
29 information. The library is located in drivers/base/power/opp.c and the header
31 CONFIG_PM_OPP from power management menuconfig menu. OPP library depends on
36 (users) -> registers a set of default OPPs -> (library)
37 SoC framework -> modifies on required cases certain OPPs -> OPP layer
38 -> queries to search/retrieve information ->
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| /linux-3.3/Documentation/DocBook/ |
| D | kernel-api.tmpl | 1 <?xml version="1.0" encoding="UTF-8"?>
2 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
3 "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
29 MA 02111-1307 USA
63 <!-- All functions are exported at now
65 -->
73 <chapter id="kernel-lib">
85 <sect1><title>Command-line Parsing</title>
92 !Elib/crc-itu-t.c
94 !Elib/crc-ccitt.c
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| /linux-3.3/drivers/base/power/ |
| D | domain_governor.c | 2 * drivers/base/power/domain_governor.c - Governors for device PM domains.
18 * default_stop_ok - Default PM domain governor routine for stopping devices.
23 struct gpd_timing_data *td = &dev_gpd_data(dev)->td; in default_stop_ok()
27 if (dev->power.max_time_suspended_ns < 0 || td->break_even_ns == 0) in default_stop_ok()
30 return td->stop_latency_ns + td->start_latency_ns < td->break_even_ns in default_stop_ok()
31 && td->break_even_ns < dev->power.max_time_suspended_ns; in default_stop_ok()
35 * default_power_down_ok - Default generic PM domain power off governor routine.
49 off_on_time_ns = genpd->power_off_latency_ns + in default_power_down_ok()
50 genpd->power_on_latency_ns; in default_power_down_ok()
52 * It doesn't make sense to remove power from the domain if saving in default_power_down_ok()
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| D | domain.c | 2 * drivers/base/power/domain.c - Common code related to device power domains.
25 __routine = genpd->dev_ops.callback; \
29 __routine = dev_gpd_data(dev)->ops.callback; \
42 if (__elapsed > __gpd_data->td.field) { \
43 __gpd_data->td.field = __elapsed; \
57 if (IS_ERR_OR_NULL(dev->pm_domain)) in dev_to_genpd()
58 return ERR_PTR(-EINVAL); in dev_to_genpd()
60 return pd_to_genpd(dev->pm_domain); in dev_to_genpd()
92 if (!WARN_ON(atomic_read(&genpd->sd_count) == 0)) in genpd_sd_counter_dec()
93 ret = !!atomic_dec_and_test(&genpd->sd_count); in genpd_sd_counter_dec()
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| /linux-3.3/drivers/iommu/ |
| D | amd_iommu_types.h | 2 * Copyright (C) 2007-2010 Advanced Micro Devices, Inc.
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
224 ((1ULL << PM_LEVEL_SHIFT((x))) - 1): \
235 (~((1ULL << (12 + ((lvl) * 9))) - 1)))
240 * Pagesize is expected to be a power-of-two
243 ((__ffs(pagesize) - 12) / 9)
246 * Pagesize is expected to be a power-of-two
249 (1ULL << ((__ffs(pagesize) - 12) % 9))
252 * Aligns a given io-virtual address to a given page size
253 * Pagesize is expected to be a power-of-two
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| /linux-3.3/include/trace/events/ |
| D | power.h | 2 #define TRACE_SYSTEM power
22 __entry->state = state;
23 __entry->cpu_id = cpu_id;
26 TP_printk("state=%lu cpu_id=%lu", (unsigned long)__entry->state,
27 (unsigned long)__entry->cpu_id)
41 #define PWR_EVENT_EXIT -1
62 __entry->state = state;
65 TP_printk("state=%lu", (unsigned long)__entry->state)
72 * The power events are used for cpuidle & suspend (power_start, power_end)
75 DECLARE_EVENT_CLASS(power,
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| /linux-3.3/kernel/power/ |
| D | Kconfig | 5 ---help---
8 suspend-to-RAM state (e.g. the ACPI S3 state).
31 ---help---
36 You can suspend your machine with 'echo disk > /sys/power/state'
46 for suspend states like suspend-to-RAM (STR) often don't work very
58 <file:Documentation/power/swsusp-and-swap-files.txt>).
67 For more information take a look at <file:Documentation/power/swsusp.txt>.
76 ---help---
77 The default resume partition is the partition that the suspend-
78 to-disk implementation will look for a suspended disk image.
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| /linux-3.3/arch/sparc/ |
| D | Kconfig | 2 bool "64-bit kernel" if ARCH = "sparc"
9 Say yes to build a 64-bit kernel - formerly known as sparc64
10 Say no to build a 32-bit kernel - formerly known as sparc
156 bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
157 ---help---
169 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
172 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
269 bool "Support for hot-pluggable CPUs"
283 tristate "UltraSPARC-III CPU Frequency driver"
287 This adds the CPUFreq driver for UltraSPARC-III processors.
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| /linux-3.3/Documentation/sound/alsa/soc/ |
| D | dapm.txt | 1 Dynamic Audio Power Management for Portable Devices
7 Dynamic Audio Power Management (DAPM) is designed to allow portable
8 Linux devices to use the minimum amount of power within the audio
10 such, can easily co-exist with the other PM systems.
13 all power switching is done within the ASoC core. No code changes or
14 recompiling are required for user space applications. DAPM makes power
18 DAPM spans the whole machine. It covers power control within the entire
19 audio subsystem, this includes internal codec power blocks and machine
20 level power systems.
22 There are 4 power domains within DAPM
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| /linux-3.3/include/linux/mfd/ |
| D | dbx500-prcmu.h | 13 #include <asm/mach-types.h>
31 /* EPOD (power domain) IDs */
35 * - EPOD_ID_SVAMMDSP: power domain for SVA MMDSP
36 * - EPOD_ID_SVAPIPE: power domain for SVA pipe
37 * - EPOD_ID_SIAMMDSP: power domain for SIA MMDSP
38 * - EPOD_ID_SIAPIPE: power domain for SIA pipe
39 * - EPOD_ID_SGA: power domain for SGA
40 * - EPOD_ID_B2R2_MCDE: power domain for B2R2 and MCDE
41 * - EPOD_ID_ESRAM12: power domain for ESRAM 1 and 2
42 * - EPOD_ID_ESRAM34: power domain for ESRAM 3 and 4
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| /linux-3.3/Documentation/networking/ |
| D | policy-routing.txt | 2 -------
15 REJECT - abort route lookup and return an error value.
16 THROW - abort route lookup in this class.
24 RT_CLASS_LOCAL=255 - local interface addresses,
27 RT_CLASS_MAIN=254 - all normal routes are put there
30 RT_CLASS_DEFAULT=253 - if ip_fib_model==1, then
36 -----
41 RTP_ROUTE - lookup in attached class
42 RTP_NAT - lookup in attached class and if a match is found,
44 RTP_MASQUERADE - lookup in attached class and if a match is found,
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| /linux-3.3/include/xen/interface/ |
| D | grant_table.h | 5 * page-ownership transfers.
37 /* Some rough guidelines on accessing and updating grant-table entries
38 * in a concurrency-safe manner. For more information, Linux contains a
41 * NB. WMB is a no-op on current-generation x86 processors. However, a
45 * 1. Write ent->domid.
46 * 2. Write ent->frame:
48 * GTF_accept_transfer: Pseudo-phys frame slot being filled by new
51 * 4. Write ent->flags, inc. valid type.
54 * 1. flags = ent->flags.
56 * 3. Check result of SMP-safe CMPXCHG(&ent->flags, flags, 0).
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