| /linux/Documentation/admin-guide/pm/ |
| H A D | intel_uncore_frequency_scaling.rst | 1 .. SPDX-License-Identifier: GPL-2.0
8 :Copyright: |copy| 2022-2023 Intel Corporation
13 ------------
30 ---------------
45 This is a read-only attribute. If users adjust max_freq_khz,
50 This is a read-only attribute. If users adjust min_freq_khz,
63 -----------------------------------------------------------------
117 Efficiency vs. Latency Tradeoff
118 -------------------------------
120 The Efficiency Latency Control (ELC) feature improves performance
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| /linux/tools/power/x86/x86_energy_perf_policy/ |
| H A D | x86_energy_perf_policy.8 | 1 .\" This page Copyright (C) 2010 - 2015 Len Brown <len.brown@intel.com>
5 x86_energy_perf_policy \- Manage Energy vs. Performance Policy via x86 Model Specific Registers
10 .RB "scope: \-\-cpu\ cpu-list | \-\-pkg\ pkg-list"
12 .RB "cpu-list, pkg-list: # | #,# | #-# | all"
14 .RB "field: \-\-all | \-\-epb | \-\-hwp-epp | \-\-hwp-min | \-\-hwp-max | \-\-hwp-desired"
16 .RB "other: (\-\-force | \-\-hwp-enable | \-\-turbo-enable) value)"
18 .RB "value: # | default | performance | balance-performance | balance-power | power"
21 displays and updates energy-performance policy settings specific to
23 updates, no matter if the Linux cpufreq sub-system is enabled or not.
27 such as how aggressively the hardware enters and exits CPU idle states (C-states)
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| /linux/sound/soc/codecs/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
5 # setting - SPI can't be modular so that case doesn't need to be covered.
489 tristate "Analog Devices AU1761 CODEC - I2C"
495 tristate "Analog Devices AU1761 CODEC - SPI"
532 tristate "Analog Devices ADAU7002 Stereo PDM-to-I2S/TDM Converter"
538 tristate "Analog Devices ADAU7118 8 Channel PDM-to-I2S/TDM Converter - HW Mode"
541 Enable support for the Analog Devices ADAU7118 8 Channel PDM-to-I2S/TDM
547 will be called snd-soc-adau7118-hw.
550 tristate "Analog Devices ADAU7118 8 Channel PDM-to-I2S/TDM Converter - I2C"
555 Enable support for the Analog Devices ADAU7118 8 Channel PDM-to-I2S/TDM
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| /linux/Documentation/devicetree/bindings/regulator/ |
| H A D | adi,max77503-regulator.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/regulator/adi,max77503-regulator.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Gokhan Celik <Gokhan.Celik@analog.com>
15 high-efficiency buck converter. This converter has 94% efficiency
16 for 2-Cell/3-Cell battery applications.
19 - $ref: regulator.yaml#
24 - adi,max77503
29 - enum: [0x1e, 0x24, 0x37]
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| H A D | richtek,rt5739.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: Richtek RT5739 Step-Down Buck Converter
10 - ChiYuan Huang <cy_huang@richtek.com>
13 The RT5739 is a step-down switching buck converter that can deliver the
16 capability at over 80% high efficiency.
19 - $ref: regulator.yaml#
24 - richtek,rt5733
25 - richtek,rt5739
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| H A D | maxim,max20411.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Maxim Integrated MAX20411 Step-Down DC-DC Converter
10 - Bjorn Andersson <andersson@kernel.org>
13 The MAX20411 is a high-efficiency, DC-DC step-down converter. It provides
18 - $ref: regulator.yaml#
27 enable-gpios:
28 description: GPIO connected to the EN pin, active high
30 vdd-supply:
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| H A D | richtek,rt6160-regulator.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/regulator/richtek,rt6160-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - ChiYuan Huang <cy_huang@richtek.com>
13 The RT6160 is a high-efficiency buck-boost converter that can provide
18 https://www.richtek.com/assets/product_file/RT6160A/DS6160A-00.pdf
21 - $ref: regulator.yaml#
26 - richtek,rt6160
31 enable-gpios:
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| H A D | maxim,max77686.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Chanwoo Choi <cw00.choi@samsung.com>
11 - Krzysztof Kozlowski <krzk@kernel.org>
17 The Maxim MAX77686 provides high-efficiency Buck and 26 Low-DropOut (LDO)
25 "^LDO([1-9]|1[0-9]|2[3-6])$":
32 LDO2, LDO6-8, LDO10-12, LDO14-16
35 - regulator-name
37 # LDO20-LDO22 with maxim,ena-gpios
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| H A D | maxim,max77802.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Javier Martinez Canillas <javier@dowhile0.org>
11 - Krzysztof Kozlowski <krzk@kernel.org>
17 The Maxim MAX77686 provides 10 high-efficiency Buck and 32 Low-DropOut (LDO)
23 Certain regulators support "regulator-initial-mode" and "regulator-mode".
24 The valid modes list is defined in the dt-bindings/regulator/maxim,max77802.h
26 1 - Normal regulator voltage output mode.
27 3 - Low Power which reduces the quiescent current down to only 1uA
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| /linux/drivers/regulator/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
38 managed regulators and simple non-configurable regulators.
64 the netlink mechanism. User-space applications can subscribe to these events
65 for real-time updates on various regulator events.
75 They provide two I2C-controlled DC/DC step-down converters with
101 tristate "Active-semi act8865 voltage regulator"
106 This driver controls a active-semi act8865 voltage output
110 tristate "Active-semi ACT8945A voltage regulator"
113 This driver controls a active-semi ACT8945A voltage regulator
114 via I2C bus. The ACT8945A features three step-down DC/DC converters
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| /linux/Documentation/hwmon/ |
| H A D | adp1050.rst | 1 .. SPDX-License-Identifier: GPL-2.0
12 Addresses scanned: I2C 0x70 - 0x77
14 Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADP1050.pdf
18 - Radu Sabau <radu.sabau@analog.com>
22 -----------
28 interface targeting high density, high efficiency dc-to-dc power
34 -----------
36 This driver does not auto-detect devices. You will have to instantiate
38 Please see Documentation/i2c/instantiating-devices.rst for details.
41 ---------------------
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| H A D | mpq8785.rst | 1 .. SPDX-License-Identifier: GPL-2.0-only
15 -----------
17 The MPQ8785 is a fully integrated, PMBus-compatible, high-frequency, synchronous
20 wide input supply range. The MPQ8785 operates at high efficiency over a wide
26 The MPQ8785 adopts MPS's proprietary multi-phase digital constant-on-time (MCOT)
29 with excellent current sharing and phase interleaving for high-current
32 Fully integrated protection features include over-current protection (OCP),
33 over-voltage protection (OVP), under-voltage protection (UVP), and
34 over-temperature protection (OTP).
41 - PMBus rev 1.3 interface.
|
| H A D | ltc2947.rst | 1 Kernel drivers ltc2947-i2c and ltc2947-spi
10 Addresses scanned: -
14 https://www.analog.com/media/en/technical-documentation/data-sheets/LTC2947.pdf
21 The LTC2947 is a high precision power and energy monitor that measures current,
27 accumulates if current is positive (to check battery charging efficiency for
37 The following attributes are supported. Limits are read-write, reset_history
38 is write-only and all the other attributes are read-only.
41 in0_input VP-VM voltage (mV).
49 in0_label Channel label (VP-VM)
61 curr1_input IP-IM Sense current (mA)
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| H A D | pm6764tr.rst | 1 .. SPDX-License-Identifier: GPL-2.0-only
12 Addresses scanned: -
20 ------------
22 This driver supports the STMicroelectronics PM6764TR chip. The PM6764TR is a high
27 custom configurations. The PM6764TR device features up to 4-phase programmable operation.
30 maintaining the best efficiency over all loading conditions without compromising transient
|
| H A D | tps546d24.rst | 1 .. SPDX-License-Identifier: GPL-2.0-only
12 Addresses scanned: -
20 -----------
22 The TPS546D24A is a highly integrated, non-isolated DC/DC converter capable
23 of high frequency operation and 40-A current output from a 7-mm x 5-mm
28 overdrive the internal 5-V LDO with an external 5-V supply via the VDD5
29 pin to improve efficiency and reduce power dissipation of the converter.
33 ---------------------
|
| /linux/Documentation/driver-api/thermal/ |
| H A D | power_allocator.rst | 6 -----------
20 --------------
23 Proportional-Integral-Derivative controller (PID controller) with
29 - e = desired_temperature - current_temperature
30 - err_integral is the sum of previous errors
31 - diff_err = e - previous_error
39 | +----------+ +---+
40 | +----->| diff_err |-->| X |------+
41 | | +----------+ +---+ |
47 +---+ | +-------+ +---+ +---+ +---+ +----------+
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| /linux/Documentation/devicetree/bindings/hwmon/ |
| H A D | maxim,max20730.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Jean Delvare <jdelvare@suse.com>
12 - Guenter Roeck <linux@roeck-us.net>
17 up to 25A (max) load. This single-chip regulator provides extremely
18 compact, high efficiency power-delivery solutions with high-precision
29 - maxim,max20730
30 - maxim,max20734
31 - maxim,max20743
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| /linux/Documentation/features/core/jump-labels/ |
| H A D | arch-support.txt | 2 # Feature name: jump-labels
4 # description: arch supports live patched, high efficiency branches
6 -----------------------
8 -----------------------
30 -----------------------
|
| /linux/Documentation/devicetree/bindings/sound/ |
| H A D | awinic,aw87390.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Weidong Wang <wangweidong.a@awinic.com>
15 sound quallity, which is a new high efficiency, low
19 - $ref: dai-common.yaml#
28 "#sound-dai-cells":
31 awinic,audio-channel:
40 - compatible
41 - reg
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| H A D | richtek,rtq9128.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - ChiYuan Huang <cy_huang@richtek.com>
13 The RTQ9128 is a ultra-low output noise, high-efficiency, four-channel
14 class-D audio power amplifier and delivering 4x75W into 4OHm at 10%
18 - $ref: dai-common.yaml#
23 - richtek,rtq9128
28 enable-gpios:
31 richtek,tdm-input-data2-select:
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| H A D | richtek,rt9120.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Richtek RT9120 Class-D audio amplifier
10 - ChiYuan Huang <cy_huang@richtek.com>
13 The RT9120 is a high efficiency, I2S-input, stereo audio power amplifier
20 - $ref: dai-common.yaml#
25 - richtek,rt9120
31 pwdnn-gpios:
35 dvdd-supply:
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| /linux/Documentation/devicetree/bindings/leds/ |
| H A D | leds-lm3697.txt | 1 * Texas Instruments - LM3697 Highly Efficient White LED Driver
3 The LM3697 11-bit LED driver provides high-
5 LED strings while delivering up to 90% efficiency.
10 - compatible:
12 - reg : I2C slave address
13 - #address-cells : 1
14 - #size-cells : 0
17 - enable-gpios : GPIO pin to enable/disable the device
18 - vled-supply : LED supply
21 - reg : 0 - LED is Controlled by bank A
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| /linux/mm/ |
| H A D | vmpressure.c | 1 // SPDX-License-Identifier: GPL-2.0-only
27 * rate-limit tunable for the "low" level notification, and also for
58 * prio <= DEF_PRIORITY - 2 : kswapd becomes somewhat overwhelmed
140 pressure = scale - (reclaimed * scale / scanned); in vmpressure_calc_level()
164 mutex_lock(&vmpr->events_lock); in vmpressure_event()
165 list_for_each_entry(ev, &vmpr->events, node) { in vmpressure_event()
166 if (ancestor && ev->mode == VMPRESSURE_LOCAL) in vmpressure_event()
168 if (signalled && ev->mode == VMPRESSURE_NO_PASSTHROUGH) in vmpressure_event()
170 if (level < ev->level) in vmpressure_event()
172 eventfd_signal(ev->efd); in vmpressure_event()
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| /linux/Documentation/devicetree/bindings/leds/backlight/ |
| H A D | kinetic,ktz8866.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jianhua Lu <lujianhua000@gmail.com>
13 The Kinetic Technologies KTZ8866 is a high efficiency 6-channels-current-sinks
15 https://www.kinet-ic.com/ktz8866/
18 - $ref: common.yaml#
27 vddpos-supply:
30 vddneg-supply:
33 enable-gpios:
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| /linux/Documentation/devicetree/bindings/power/supply/ |
| H A D | bq25980.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Andrew Davis <afd@ti.com>
15 for use in high-power density portable electronics. These inductorless
16 switching chargers can provide over 97% efficiency by making use of the
20 - $ref: power-supply.yaml#
25 - ti,bq25980
26 - ti,bq25975
27 - ti,bq25960
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