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/linux/drivers/staging/media/atomisp/pci/isp/kernels/xnr/xnr_3.0/
H A Dia_css_xnr3.host.c19 /* Minimum value for sigma on host interface. Lower values translate to
56 /* sigma */
65 * Compute an alpha value for the ISP kernel from sigma value on the host
66 * parameter interface as: alpha_scale * 1/(sigma/sigma_scale)
69 compute_alpha(int sigma) in compute_alpha() argument
72 int offset = sigma / 2; in compute_alpha()
74 if (sigma < XNR_MIN_SIGMA) { in compute_alpha()
77 alpha = ((IA_CSS_XNR3_SIGMA_SCALE * XNR_ALPHA_SCALE_FACTOR) + offset) / sigma; in compute_alpha()
137 s32 alpha_y0 = compute_alpha(from->sigma.y0); in ia_css_xnr3_encode()
138 s32 alpha_y1 = compute_alpha(from->sigma.y1); in ia_css_xnr3_encode()
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/linux/Documentation/devicetree/bindings/trigger-source/
H A Dadi,util-sigma-delta-spi.yaml7 $id: http://devicetree.org/schemas/trigger-source/adi,util-sigma-delta-spi.yaml#
10 title: Analog Devices Util Sigma-Delta SPI IP Core
16 The Util Sigma-Delta SPI is an FPGA IP core from Analog Devices that provides
18 the sigma-delta family of ADCs.
23 const: adi,util-sigma-delta-spi
46 compatible = "adi,util-sigma-delta-spi";
/linux/include/linux/iio/adc/
H A Dad_sigma_delta.h3 * Support code for Analog Devices Sigma-Delta ADCs
21 * struct ad_sigma_delta_calib_data - Calibration data for Sigma Delta devices
38 * struct ad_sigma_delta_info - Sigma Delta driver specific callbacks and options
85 * struct ad_sigma_delta - Sigma Delta device struct
86 * @spi: The spi device associated with the Sigma Delta device.
87 * @trig: The IIO trigger associated with the Sigma Delta device.
89 * Most of the fields are private to the sigma delta library code and should not
/linux/Documentation/devicetree/bindings/iio/adc/
H A Dst,stm32-dfsdm-adc.yaml14 STM32 DFSDM ADC is a sigma delta analog-to-digital converter dedicated to
15 interface external sigma delta modulators to STM32 micro controllers.
17 - Sigma delta modulators (motor control, metering...)
155 Must be defined if two sigma delta modulators are
219 Must be defined if two sigma delta modulators are
227 Used to pipe external sigma delta modulator or internal ADC backend to DFSDM channel.
260 From common IIO binding. Used to pipe external sigma delta
316 From common IIO binding. Used to pipe external sigma delta
H A Dsigma-delta-modulator.yaml4 $id: http://devicetree.org/schemas/iio/adc/sigma-delta-modulator.yaml#
7 title: Sigma delta modulator
H A Dmicrochip,mcp3564.yaml14 Delta-Sigma ADCs with an SPI interface. Datasheet can be found here:
20 …eets/MCP3461-2-4-Two-Four-Eight-Channel-153.6-ksps-Low-Noise-16-Bit-Delta-Sigma-ADC-Data-Sheet-200…
/linux/lib/crypto/s390/
H A Dchacha-s390.S19 SYM_DATA_START_LOCAL(sigma)
27 .long 0x61707865,0x61707865,0x61707865,0x61707865 # smashed sigma
31 SYM_DATA_END(sigma)
85 larl %r7,sigma
89 VL K0,0,,%r7 # load sigma
97 VLM XA0,XA3,0x60,%r7,4 # load [smashed] sigma
485 larl %r7,sigma
491 VLM K0,BEPERM,0,%r7,4 # load sigma, increments, ...
741 VLM K0,T3,0,%r7,4 # re-load sigma and increments
/linux/drivers/iio/adc/
H A Dad_sigma_delta.c3 * Support code for Analog Devices Sigma-Delta ADCs
49 * @sigma_delta: The sigma delta device
63 * @sigma_delta: The sigma delta device
156 * @sigma_delta: The sigma delta device
198 * @sigma_delta: The sigma delta device
365 * @sigma_delta: The sigma delta device
487 * For sigma-delta sequencer drivers with multiple slots, an update_scan_mode in ad_sd_buffer_postenable()
842 * @indio_dev: The IIO device which the Sigma Delta device is used for
917 MODULE_DESCRIPTION("Analog Devices Sigma-Delta ADCs");
H A Dsd_adc_modulator.c3 * Generic sigma delta modulator driver
159 MODULE_DESCRIPTION("Basic sigma delta modulator");
/linux/lib/
H A Dts_kmp.c17 * "q" = 0,1,...,m and any character "a" in SIGMA, the value
20 * has only m entries, whereas DELTA has O(m|SIGMA|) entries, we
21 * save a factor of |SIGMA| in the preprocessing time by computing
/linux/drivers/clk/sunxi-ng/
H A Dccu_sdm.c77 * Sigma delta modulation provides a way to do fractional-N frequency
117 pr_debug("%s: Read sigma-delta modulation setting\n", in ccu_sdm_helper_read_rate()
123 pr_debug("%s: clock is sigma-delta modulated\n", in ccu_sdm_helper_read_rate()
/linux/Documentation/ABI/testing/
H A Dsysfs-bus-iio-adc-mcp35646 circuit of the Delta-Sigma modulator. The different BOOST
15 the current biasing circuit of the Delta-Sigma modulator.
/linux/drivers/gpu/drm/sprd/
H A Dsprd_dsi.h78 u32 nint; /* sigma delta modulator NINT control */
79 u32 kint; /* sigma delta modulator KINT control */
/linux/drivers/hid/
H A Dhid-sigmamicro.c3 * HID driver for SiGma Micro-based keyboards
107 hid_info(hdev, "Fixing up SiGma Micro report descriptor\n"); in sm_report_fixup()
129 MODULE_DESCRIPTION("SiGma Micro HID driver");
/linux/kernel/bpf/
H A Dtnum.c64 u64 sm, sv, sigma, chi, mu; in tnum_add() local
68 sigma = sm + sv; in tnum_add()
69 chi = sigma ^ sv; in tnum_add()
/linux/include/keys/
H A Dtrusted_dcp.h3 * Copyright (C) 2021 sigma star gmbh
/linux/Documentation/admin-guide/media/
H A Dbttv-cardlist.rst194 - Sigma TVII-FM
518 - MATRIX Vision Sigma-SQ
522 - MATRIX Vision Sigma-SLC
/linux/lib/crypto/x86/
H A Dblake2s-core.S21 SIGMA: label
56 leaq SIGMA+0xa0(%rip),%r8
66 leaq SIGMA(%rip),%rcx
/linux/include/soc/fsl/
H A Ddcp.h3 * Copyright (C) 2021 sigma star gmbh
/linux/Documentation/devicetree/bindings/sound/
H A Dak5386.txt1 AK5386 Single-ended 24-Bit 192kHz delta-sigma ADC
H A Dasahi-kasei,ak5558.yaml7 title: AK5558 8 channel differential 32-bit delta-sigma ADC
/linux/sound/soc/stm/
H A DKconfig45 for Sigma Delta Modulators (DFSDM) driver used
/linux/arch/arm/boot/dts/nxp/imx/
H A Dimx6qp-phytec-mira-rdk-nand.dts4 * Author: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
/linux/net/sched/
H A Dsch_netem.c326 * std deviation sigma. Uses table lookup to approximate the desired
329 static s64 tabledist(s64 mu, s32 sigma, in tabledist() argument
338 if (sigma == 0) in tabledist()
345 return ((rnd % (2 * (u32)sigma)) + mu) - sigma; in tabledist()
348 x = (sigma % NETEM_DIST_SCALE) * t; in tabledist()
354 return x / NETEM_DIST_SCALE + (sigma / NETEM_DIST_SCALE) * t + mu; in tabledist()
/linux/Documentation/devicetree/bindings/clock/
H A Dthead,th1520-clk-ap.yaml39 TH1520 manual, VIDEO_PLL is a Silicon Creations Sigma-Delta PLL

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