Searched full:frequency (Results 1 – 25 of 972) sorted by relevance
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| /Documentation/devicetree/bindings/i2c/ |
| D | opencores,i2c-ocores.yaml | 37 clock-frequency:
39 clock-frequency property is meant to control the bus frequency for i2c bus
41 frequency. So the following rules are set to fix this situation:
42 - if clock-frequency is present and neither opencores,ip-clock-frequency nor
43 clocks are, then clock-frequency specifies i2c controller clock frequency.
45 frequency is fixed at 100 KHz.
46 - if clocks is present it specifies i2c controller clock. clock-frequency
47 property specifies i2c bus frequency.
48 - if opencores,ip-clock-frequency is present it specifies i2c controller
49 clock frequency. clock-frequency property specifies i2c bus frequency.
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| /Documentation/cpu-freq/ |
| D | cpu-drivers.rst | 24 2. Frequency Table Helpers
62 frequency while changing CPU frequency.
64 .get - Returns current frequency of the CPU.
66 .bios_limit - Returns HW/BIOS max frequency limitations for the CPU.
106 |policy->cpuinfo.max_freq | the minimum and maximum frequency |
115 |policy->cur | The current operating frequency of |
135 frequency table helpers might be helpful. See the section 2 for more information
147 See section 2 for details on frequency table helpers.
149 You need to make sure that at least one valid frequency (or operating
157 Most cpufreq drivers or even most cpu frequency scaling algorithms
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| D | cpufreq-stats.rst | 22 cpufreq-stats is a driver that provides CPU frequency statistics for each CPU.
44 about the frequency transitions before the stats driver insertion.
66 this CPU. The cat output will have "<frequency> <time>" pair in each line, which
67 will mean this CPU spent <time> usertime units of time at <frequency>. Output
83 This gives the total number of frequency transitions on this CPU. The cat
84 output will have a single count which is the total number of frequency
94 This will give a fine grained information about all the CPU frequency
98 which the driver has provided the frequency table initially to the cpufreq core
124 CPU Frequency scaling --->
125 [*] CPU Frequency scaling
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| /Documentation/admin-guide/pm/ |
| D | cpufreq_drivers.rst | 18 PowerNow! and Cool'n'Quiet are AMD names for frequency
27 Note that the functionality to change frequency (and voltage)
32 The drivers use BIOS supplied tables to obtain frequency and
34 Frequency transitions will be unavailable if the BIOS does
101 1.1.1 Get Average Frequency
102 1.1.2 Set Desired Frequency
115 performance (ie: frequency) between the platform firmware and the OS.
120 OS utilizes the PCC interface to inform platform firmware what frequency the
122 the requested frequency. If the request for the target frequency could not be
142 * Get Average Frequency
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| D | intel_uncore_frequency_scaling.rst | 5 Intel Uncore Frequency Scaling
17 performance, SoCs have internal algorithms for scaling uncore frequency. These
18 algorithms monitor workload usage of uncore and set a desirable frequency.
24 change to uncore frequency. Also, users may have workloads which require
32 To control uncore frequency, a sysfs interface is provided in the directory:
44 Out of reset, this attribute represent the maximum possible frequency.
49 Out of reset, this attribute represent the minimum possible frequency.
54 This attribute is used to set the maximum uncore frequency.
57 This attribute is used to set the minimum uncore frequency.
60 This attribute is used to get the current uncore frequency.
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| D | cpufreq.rst | 19 different clock frequency and voltage configurations, often referred to as
21 the higher the clock frequency and the higher the voltage, the more instructions
23 frequency and the higher the voltage, the more energy is consumed over a unit of
30 highest one (i.e. the highest-performance frequency/voltage configuration
37 different frequency/voltage configurations or (in the ACPI terminology) to be
44 to as CPU performance scaling or CPU frequency scaling (because it involves
45 adjusting the CPU clock frequency).
52 (CPU Frequency scaling) subsystem that consists of three layers of code: the
244 Current frequency of the CPUs belonging to this policy as obtained from
247 This is expected to be the frequency the hardware actually runs at.
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| D | intel-speed-select.rst | 15 - https://builders.intel.com/docs/networkbuilders/intel-speed-select-technology-base-frequency-enha…
88 guaranteed base frequency. Once the user issues a command to use a specific
90 a change in the base frequency dynamically. This feature is called
154 base-frequency(MHz):2600
168 condition is met, then base frequency of 2600 MHz can be maintained. To
183 base-frequency(MHz):2800
191 frequency is increased to 2.8 GHz compared to 2.6 GHz at performance level 0.
211 This matches the base-frequency (MHz) field value displayed from the
212 "perf-profile info" command for performance level 0(cpufreq frequency is in
215 To check if the average frequency is equal to the base frequency for a 100% busy
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| /Documentation/ABI/testing/ |
| D | sysfs-bus-iio-impedance-analyzer-ad5933 | 6 Frequency sweep start frequency in Hz.
13 Frequency increment in Hz (step size) between consecutive
14 frequency points along the sweep.
21 Number of frequency points (steps) in the frequency sweep.
24 out_altvoltageY_frequency_increment, determines the frequency
34 after each frequency increment, and before the ADC is triggered
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| D | sysfs-bus-iio-dfsdm-adc-stm32 | 7 Used by audio driver to set/get the spi input frequency.
10 provide information on the SPI clock frequency during runtime
11 Notice that the SPI frequency should be a multiple of sample
12 frequency to ensure the precision.
16 Reading SPI clkout frequency,
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| D | sysfs-bus-iio-frequency-adf4350 | 5 Stores channel Y frequency resolution/channel spacing in Hz.
15 Sets channel Y REFin frequency in Hz. In some clock chained
16 applications, the reference frequency used by the PLL may
18 adjust the reference frequency accordingly.
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| /Documentation/netlink/specs/ |
| D | dpll.yaml | 81 name: fractional-frequency-offset-too-high
83 the FFO (Fractional Frequency Offset) between the RX and TX
153 name: pin-frequency-1-hz
157 name: pin-frequency-10-khz
161 name: pin-frequency-77_5-khz
165 name: pin-frequency-10-mhz
292 name: frequency
295 name: frequency-supported
298 nested-attributes: frequency-range
300 name: frequency-min
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| /Documentation/admin-guide/media/ |
| D | dvb_intro.rst | 105 Broadcaster Frequency
129 # C Frequency SymbolRate FEC QAM
130 # S Frequency Polarisation SymbolRate FEC
131 # T Frequency Bandwidth FEC FEC2 QAM Mode Guard Hier
146 FREQUENCY = 177500000
173 FREQUENCY = 226500000
188 FREQUENCY = 226500000
203 FREQUENCY = 226500000
218 FREQUENCY = 226500000
233 FREQUENCY = 226500000
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| /Documentation/devicetree/bindings/media/i2c/ |
| D | aptina,mt9p031.yaml | 54 input-clock-frequency:
58 description: Input clock frequency
60 pixel-clock-frequency:
63 description: Target pixel clock frequency
69 - input-clock-frequency
70 - pixel-clock-frequency
102 input-clock-frequency = <6000000>;
103 pixel-clock-frequency = <96000000>;
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| D | toshiba,et8ek8.txt | 16 - clock-frequency: Frequency of the external clock to the sensor. Camera
17 driver will set this frequency on the external clock. The clock frequency is
18 a pre-determined frequency known to be suitable to the board.
40 clock-frequency = <400000>;
47 clock-frequency = <9600000>;
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| /Documentation/devicetree/bindings/iio/frequency/ |
| D | adi,adrf6780.yaml | 4 $id: http://devicetree.org/schemas/iio/frequency/adi,adrf6780.yaml#
14 radio designs operating in the 5.9 GHz to 23.6 GHz frequency range.
26 spi-max-frequency:
55 Intermediate Frequency Mode Enable. Either IF Mode or I/Q Mode
67 Double the Local Oscillator output frequency from the Local
68 Oscillator Input Frequency. Either LOx1 or LOx2 can be enabled
74 Local Oscillator input frequency equal to the Local Oscillator
75 output frequency (LO x1). Either LOx1 or LOx2 can be enabled
129 spi-max-frequency = <1000000>;
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| /Documentation/driver-api/ |
| D | wbrf.rst | 9 the GPU memory clocks with local radio module frequency bands used by
26 Producer: such component who can produce high-powered radio frequency
27 Consumer: such component who can adjust its in-use frequency in
61 2. On using some frequency band, call `acpi_amd_wbrf_add_remove` with 'add'
63 3. Or on stopping using some frequency band, call
70 of frequency band change(add or remove) from other producers.
72 current active frequency bands considering some producers may broadcast
74 4. On receiving a notification for frequency band change, run
76 active frequency bands.
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| /Documentation/userspace-api/media/v4l/ |
| D | vidioc-enum-freq-bands.rst | 13 VIDIOC_ENUM_FREQ_BANDS - Enumerate supported frequency bands
34 Enumerates the frequency bands that a tuner or modulator supports. To do
70 - Identifies the frequency band, set by the application.
74 frequency band, see :ref:`tuner-capability`. The
76 be the same for all frequency bands of the selected
81 - :cspan:`2` The lowest tunable frequency in units of 62.5 kHz, or
83 of 62.5 Hz, for this frequency band. A 1 Hz unit is used when the
87 - :cspan:`2` The highest tunable frequency in units of 62.5 kHz,
89 units of 62.5 Hz, for this frequency band. A 1 Hz unit is used
93 - :cspan:`2` The supported modulation systems of this frequency
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| D | vidioc-g-frequency.rst | 13 VIDIOC_G_FREQUENCY - VIDIOC_S_FREQUENCY - Get or set tuner or modulator radio frequency
38 To get the current tuner or modulator radio frequency applications set
44 driver stores the current frequency in the ``frequency`` field.
46 To change the current tuner or modulator radio frequency applications
47 initialize the ``tuner``, ``type`` and ``frequency`` fields, and the
50 structure. When the requested frequency is not possible the driver
52 write-only ioctl, it does not return the actual new frequency.
80 - ``frequency``
81 - Tuning frequency in units of 62.5 kHz, or if the struct
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| /Documentation/userspace-api/media/dvb/ |
| D | dvb-frontend-parameters.rst | 33 uint32_t frequency; /* (absolute) frequency in Hz for QAM/OFDM */
34 /* intermediate frequency in kHz for QPSK */
44 In the case of QPSK frontends the ``frequency`` field specifies the
45 intermediate frequency, i.e. the offset which is effectively added to
46 the local oscillator frequency (LOF) of the LNB. The intermediate
47 frequency has to be specified in units of kHz. For QAM and OFDM
48 frontends the ``frequency`` specifies the absolute frequency and is
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| /Documentation/devicetree/bindings/net/wireless/ |
| D | ti,wlcore.yaml | 14 Note that the *-clock-frequency properties assume internal clocks. In case
54 ref-clock-frequency:
56 description: Reference clock frequency.
58 tcxo-clock-frequency:
60 description: TCXO clock frequency.
83 - ref-clock-frequency
99 spi-max-frequency = <48000000>;
103 ref-clock-frequency = <38400000>;
118 spi-max-frequency = <48000000>;
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| /Documentation/devicetree/bindings/net/can/ |
| D | cc770.txt | 19 - bosch,external-clock-frequency : frequency of the external oscillator
20 clock in Hz. Note that the internal clock frequency used by the
24 - bosch,clock-out-frequency : slock frequency in Hz on the CLKOUT pin.
52 bosch,external-clock-frequency = <16000000>;
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| /Documentation/devicetree/bindings/clock/ |
| D | silabs,si570.txt | 19 - factory-fout: Factory set default frequency. This frequency is part specific.
20 The correct frequency for the part used has to be provided in
28 - clock-frequency: Output frequency to generate. This defines the output
29 frequency set during boot. It can be reprogrammed during
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| D | fixed-clock.yaml | 18 frequency as defined in the 'clock-frequency' property.
29 clock-frequency: true
41 - clock-frequency
50 clock-frequency = <1000000000>;
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| /Documentation/sound/cards/ |
| D | img-spdif-in.rst | 19 * name='SPDIF In Multi Frequency Acquire',index=0
20 * name='SPDIF In Multi Frequency Acquire',index=1
21 * name='SPDIF In Multi Frequency Acquire',index=2
22 * name='SPDIF In Multi Frequency Acquire',index=3
25 rates. The active rate can be obtained by reading the 'SPDIF In Lock Frequency'
36 * name='SPDIF In Lock Frequency',index=0
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| /Documentation/devicetree/bindings/sound/ |
| D | cs42l56.txt | 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.
45 …- cirrus,hpf-left-freq, hpf-right-freq : Sets the corner frequency (-3dB point) for the internal H…
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