| /linux/Documentation/devicetree/bindings/iio/frequency/ |
| H A D | adi,admv1013.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/frequency/adi,admv1013.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Antoniu Miclaus <antoniu.miclaus@analog.com>
14 radio designs operating in the 24 GHz to 44 GHz frequency range.
21 - adi,admv1013
26 spi-max-frequency:
34 clock-names:
36 - const: lo_in
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| H A D | adi,admv1014.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/frequency/adi,admv1014.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Antoniu Miclaus <antoniu.miclaus@analog.com>
14 radio designs operating in the 24 GHz to 44 GHz frequency range.
21 - adi,admv1014
26 spi-max-frequency:
32 clock-names:
34 - const: lo_in
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| /linux/drivers/cpufreq/ |
| H A D | e_powersaver.c | 1 // SPDX-License-Identifier: GPL-2.0-only
60 return -ENOMEM; in eps_acpi_init()
62 if (!zalloc_cpumask_var(&eps_acpi_cpu_perf->shared_cpu_map, in eps_acpi_init()
66 return -ENOMEM; in eps_acpi_init()
70 free_cpumask_var(eps_acpi_cpu_perf->shared_cpu_map); in eps_acpi_init()
73 return -EIO; in eps_acpi_init()
82 free_cpumask_var(eps_acpi_cpu_perf->shared_cpu_map); in eps_acpi_exit()
101 /* Return current frequency */ in eps_get()
103 return centaur->fsb * ((lo >> 8) & 0xff); in eps_get()
121 return -ENODEV; in eps_set_state()
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| H A D | longhaul.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * (C) 2001-2004 Dave Jones.
12 * LONGHAUL MSR for purpose of both frequency and voltage scaling.
13 * Present in Samuel 2 (steppings 1-7 only) (C5B), and Ezra (C5C).
16 * It is present in Ezra-T (C5M), Nehemiah (C5X) and above.
146 /* Change frequency on next halt or sleep */ in do_longhaul1()
168 /* Setup new frequency */ in do_powersaver()
175 /* Setup new voltage */ in do_powersaver()
180 /* Raise voltage if necessary */ in do_powersaver()
184 /* Change voltage */ in do_powersaver()
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| H A D | armada-37xx-cpufreq.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * CPU frequency scaling support for Armada 37xx platform.
7 * Gregory CLEMENT <gregory.clement@free-electrons.com>
24 #include "cpufreq-dt.h"
77 /* AVS value for the corresponding voltage (in mV) */
120 pr_err("Unsupported CPU frequency %d MHz\n", freq/1000000); in armada_37xx_cpu_freq_info_get()
162 * Set cpu divider based on the pre-computed array in in armada37xx_cpufreq_dvfs_setup()
182 * Find out the armada 37x supported AVS value whose voltage value is
183 * the round-up closest to the target voltage value.
189 /* Find out the round-up closest supported voltage value */ in armada_37xx_avs_val_match()
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| H A D | imx6q-cpufreq.c | 1 // SPDX-License-Identifier: GPL-2.0-only
11 #include <linux/nvmem-consumer.h>
68 new_freq = freq_table[index].frequency; in imx6q_set_target()
83 dev_dbg(cpu_dev, "%u MHz, %ld mV --> %u MHz, %ld mV\n", in imx6q_set_target()
87 /* scaling up? scale voltage before frequency */ in imx6q_set_target()
111 * reprogram PLL for frequency scaling. The procedure of reprogramming in imx6q_set_target()
113 * For i.MX6UL, it has a secondary clk mux, the cpu frequency change in imx6q_set_target()
116 * - Enable pll2_pfd2_396m_clk and reparent pll1_sw_clk to it in imx6q_set_target()
117 * - Reprogram pll1_sys_clk and reparent pll1_sw_clk back to it in imx6q_set_target()
118 * - Disable pll2_pfd2_396m_clk in imx6q_set_target()
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| H A D | powernow-k8.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * (c) 2003-2006 Advanced Micro Devices, Inc.
9 u32 numps; /* number of p-states */
10 u32 batps; /* number of p-states supported on battery */
13 * vid/fid pairings, but are modified during the ->target() call
15 u32 rvo; /* ramp voltage offset */
18 u32 vstable; /* voltage stabilization time, units 20 us */
26 /* the powernow_table includes all frequency and vid/fid pairings:
28 * frequency is in kHz */
32 * used to determine valid frequency/vid/fid states */
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| /linux/drivers/memory/samsung/ |
| H A D | exynos5422-dmc.c | 1 // SPDX-License-Identifier: GPL-2.0
10 #include <linux/devfreq-event.h>
101 * struct dmc_opp_table - Operating level desciption
102 * @freq_hz: target frequency in Hz
103 * @volt_uv: target voltage in uV
105 * Covers frequency and voltage settings of the DMC operating mode.
113 * struct exynos5_dmc - main structure describing DMC device
120 * @lock: protects curr_rate and frequency/voltage setting section
121 * @curr_rate: current frequency
122 * @curr_volt: current voltage
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| /linux/Documentation/power/ |
| H A D | opp.rst | 5 (C) 2009-2010 Nishanth Menon <nm@ti.com>, Texas Instruments Incorporated
20 -------------------------------------------------
22 Complex SoCs of today consists of a multiple sub-modules working in conjunction.
24 need to function at their highest performing frequency all the time. To
25 facilitate this, sub-modules in a SoC are grouped into domains, allowing some
26 domains to run at lower voltage and frequency while other domains run at
27 voltage/frequency pairs that are higher.
29 The set of discrete tuples consisting of frequency and voltage pairs that
36 {300MHz at minimum voltage of 1V}, {800MHz at minimum voltage of 1.2V},
37 {1GHz at minimum voltage of 1.3V}
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| /linux/Documentation/devicetree/bindings/opp/ |
| H A D | opp-v1.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/opp/opp-v1.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Viresh Kumar <viresh.kumar@linaro.org>
13 Devices work at voltage-current-frequency combinations and some implementations
19 This binding only supports voltage-frequency pairs.
24 clock-latency:
30 voltage-tolerance:
34 The voltage tolerance in percent. Use OPP tables for new designs instead.
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| H A D | opp-v2-base.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/opp/opp-v2-base.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Viresh Kumar <viresh.kumar@linaro.org>
13 Devices work at voltage-current-frequency combinations and some implementations
25 pattern: '^opp-table(-[a-z0-9]+)?$'
27 opp-shared:
30 their DVFS state together, i.e. they share clock/voltage/current lines.
31 Missing property means devices have independent clock/voltage/current
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| /linux/Documentation/devicetree/bindings/media/i2c/ |
| H A D | aptina,mt9p031.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: Aptina 1/2.5-Inch 5Mp CMOS Digital Image Sensor
10 - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
13 The Aptina MT9P031 is a 1/2.5-inch CMOS active pixel digital image sensor
15 simple two-wire serial interface.
20 - aptina,mt9p006
21 - aptina,mt9p031
22 - aptina,mt9p031m
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| /linux/Documentation/devicetree/bindings/iio/dac/ |
| H A D | adi,ltc2672.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Michael Hennerich <michael.hennerich@analog.com>
11 - Kim Seer Paller <kimseer.paller@analog.com>
14 Analog Devices LTC2672 5 channel, 12-/16-Bit, 300mA DAC
15 https://www.analog.com/media/en/technical-documentation/data-sheets/ltc2672.pdf
20 - adi,ltc2672
25 spi-max-frequency:
28 vcc-supply:
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| H A D | rohm,bd79703.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Matti Vaittinen <mazziesaccount@gmail.com>
14 The ROHM BD7970[0,1,2,3] are 8-bit DACs. The BD79700 has 2 channels,
17 …fscdn.rohm.com/en/products/databook/datasheet/ic/data_converter/dac/bd79702fv-lb_bd79703fv-lb-e.pdf
19 …cdn.rohm.com/en/products/databook/datasheet/ic/data_converter/dac/bd79700fvm-lb_bd79701fvm-lb-e.pdf
24 - rohm,bd79700
25 - rohm,bd79701
26 - rohm,bd79702
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| /linux/drivers/gpu/drm/nouveau/nvkm/subdev/clk/ |
| H A D | gm20b.c | 90 #define DFS_DET_RANGE 6 /* -2^6 ... 2^6-1 */
91 #define SDM_DIN_RANGE 12 /* -2^12 ... 2^12-1 */
100 .coeff_slope = -165230,
137 /* safe frequency we can use at minimum voltage */
163 struct nvkm_subdev *subdev = &clk->base.base.subdev; in gm20b_pllg_read_mnp()
164 struct nvkm_device *device = subdev->device; in gm20b_pllg_read_mnp()
167 gk20a_pllg_read_mnp(&clk->base, &pll->base); in gm20b_pllg_read_mnp()
169 pll->sdm_din = (val >> GPCPLL_CFG2_SDM_DIN_SHIFT) & in gm20b_pllg_read_mnp()
176 struct nvkm_device *device = clk->base.base.subdev.device; in gm20b_pllg_write_mnp()
179 pll->sdm_din << GPCPLL_CFG2_SDM_DIN_SHIFT); in gm20b_pllg_write_mnp()
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| /linux/arch/arm/mach-omap2/ |
| H A D | omap_opp_data.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 2009-2010 Texas Instruments Incorporated - https://www.ti.com/
16 #include "voltage.h"
25 * struct omap_opp_def - OMAP OPP Definition
27 * @freq: Frequency in hertz corresponding to this OPP
28 * @u_volt: Nominal voltage in microvolts corresponding to this OPP
29 * @default_available: True/false - is this OPP available by default
31 * OMAP SOCs have a standard set of tuples consisting of frequency and voltage
32 * pairs that the device will support per voltage domain. This is called
35 * domain, you can have a set of {frequency, voltage} pairs and this is denoted
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| /linux/Documentation/devicetree/bindings/sound/ |
| H A D | cs42l56.txt | 5 - compatible : "cirrus,cs42l56"
7 - reg : the I2C address of the device for I2C
9 - VA-supply, VCP-supply, VLDO-supply : power supplies for the device,
14 - cirrus,gpio-nreset : GPIO controller's phandle and the number
17 - cirrus,chgfreq-divisor : Values used to set the Charge Pump Frequency.
19 register, not the actual frequency. The frequency is determined by the following.
20 Frequency = MCLK / 4 * (N+2)
22 MCLK = Where MCLK is the frequency of the mclk signal after the MCLKDIV2 circuit.
24 - cirrus,ain1a-ref-cfg, ain1b-ref-cfg : boolean, If present, AIN1A or AIN1B are configured
25 as a pseudo-differential input referenced to AIN1REF/AIN3A.
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| /linux/tools/perf/pmu-events/arch/x86/jaketown/ |
| H A D | uncore-power.json | 88 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
97 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
106 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
115 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
124 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
133 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
142 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
151 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
155 "BriefDescription": "Frequency Residency",
160 …frequency greater than or equal to the frequency that is configured in the filter. One can use al…
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| /linux/Documentation/devicetree/bindings/mmc/ |
| H A D | mmc-spi-slot.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/mmc/mmc-spi-slot.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Ulf Hansson <ulf.hansson@linaro.org>
13 - $ref: mmc-controller.yaml
14 - $ref: /schemas/spi/spi-peripheral-props.yaml
21 const: mmc-spi-slot
29 voltage-ranges:
30 $ref: /schemas/types.yaml#/definitions/uint32-matrix
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| /linux/Documentation/devicetree/bindings/regulator/ |
| H A D | mps,mp886x.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: Monolithic Power Systems MP8867/MP8869 voltage regulator
10 - Jisheng Zhang <jszhang@kernel.org>
13 - $ref: regulator.yaml#
18 - mps,mp8867
19 - mps,mp8869
24 enable-gpios:
28 mps,fb-voltage-divider:
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| /linux/Documentation/devicetree/bindings/net/ |
| H A D | motorcomm,yt8xxx.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Frank Sae <frank.sae@motor-comm.com>
13 - $ref: ethernet-phy.yaml#
18 - ethernet-phy-id4f51.e91a
19 - ethernet-phy-id4f51.e91b
21 rx-internal-delay-ps:
24 internal delay (phy-mode is 'rgmii-id' or 'rgmii-rxid') in pico-seconds.
30 tx-internal-delay-ps:
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| /linux/Documentation/hwmon/ |
| H A D | lm85.rst | 79 - Philip Pokorny <ppokorny@penguincomputing.com>,
80 - Frodo Looijaard <frodol@dds.nl>,
81 - Richard Barrington <rich_b_nz@clear.net.nz>,
82 - Margit Schubert-While <margitsw@t-online.de>,
83 - Justin Thiessen <jthiessen@penguincomputing.com>
86 -----------
92 The LM85 uses the 2-wire interface compatible with the SMBUS 2.0
94 temperatures and five (5) voltages. It has four (4) 16-bit counters for
99 The voltage inputs have internal scaling resistors so that the following
100 voltage can be measured without external resistors:
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| /linux/Documentation/devicetree/bindings/interconnect/ |
| H A D | mediatek,cci.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: MediaTek Cache Coherent Interconnect (CCI) frequency and voltage scaling
10 - Jia-Wei Chang <jia-wei.chang@mediatek.com>
11 - Johnson Wang <johnson.wang@mediatek.com>
15 MT8183 and MT8186 SoCs to scale the frequency and adjust the voltage in
16 hardware. It can also optimize the voltage to reduce the power consumption.
21 - enum:
22 - mediatek,mt8183-cci
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| /linux/Documentation/devicetree/bindings/iio/adc/ |
| H A D | st,spear600-adc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/st,spear600-adc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jonathan Cameron <jic23@kernel.org>
14 10-bit resolution. Datasheet can be found here:
20 - st,spear600-adc
28 sampling-frequency:
33 Default sampling frequency of the ADC in Hz.
35 vref-external:
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| /linux/drivers/devfreq/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
3 bool "Generic Dynamic Voltage and Frequency Scaling (DVFS) support"
9 operating frequency based on the device driver's policy.
19 clock frequency of the device, which is also attached
20 to a device by 1-to-1. The device registering devfreq takes the
21 responsibility to "interpret" the representative frequency and
37 Chooses frequency based on the recent load on the device. Works
39 Simple-Ondemand should be able to provide busy/total counter
46 Sets the frequency at the maximum available frequency.
47 This governor always returns UINT_MAX as frequency so that
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