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/kernel/linux/linux-5.10/Documentation/devicetree/bindings/iio/adc/
Dat91-sama5d2_adc.txt4 - compatible: Should be "atmel,sama5d2-adc" or "microchip,sam9x60-adc".
5 - reg: Should contain ADC registers location and length.
6 - interrupts: Should contain the IRQ line for the ADC.
7 - clocks: phandle to device clock.
8 - clock-names: Must be "adc_clk".
9 - vref-supply: Supply used as reference for conversions.
10 - vddana-supply: Supply for the adc device.
11 - atmel,min-sample-rate-hz: Minimum sampling rate, it depends on SoC.
12 - atmel,max-sample-rate-hz: Maximum sampling rate, it depends on SoC.
13 - atmel,startup-time-ms: Startup time expressed in ms, it depends on SoC.
[all …]
/kernel/linux/linux-5.10/Documentation/devicetree/bindings/iio/proximity/
Ddevantech-srf04.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/iio/proximity/devantech-srf04.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Andreas Klinger <ak@it-klinger.de>
13 Bit-banging driver using two GPIOs:
14 - trigger-gpio is raised by the driver to start sending out an ultrasonic
16 - echo-gpio is held high by the sensor after sending ultrasonic burst
20 https://www.robot-electronics.co.uk/htm/srf04tech.htm
22 https://www.maxbotix.com/documents/LV-MaxSonar-EZ_Datasheet.pdf
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/kernel/linux/linux-5.10/tools/power/pm-graph/
Dbootgraph.83 bootgraph \- Kernel boot timing analysis
24 Generates output files in subdirectory: boot-yymmdd-HHMMSS
30 \fB-h\fR
33 \fB-v\fR
36 \fB-addlogs\fR
40 \fB-result \fIfile\fR
43 \fB-o \fIname\fR
45 Use {date}, {time}, {hostname} for current values.
47 e.g. boot-{hostname}-{date}-{time}
50 \fB-f or -callgraph\fR
[all …]
/kernel/linux/linux-5.10/sound/ppc/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
22 will be called snd-powermac.
25 bool "Toggle DRC automatically at headphone/line plug-in"
49 int "Startup delay time in ms"
/kernel/linux/linux-5.10/drivers/iio/proximity/
Dsrf04.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (c) 2017 Andreas Klinger <ak@it-klinger.de>
8 * https://www.robot-electronics.co.uk/htm/srf04tech.htm
12 * +---+
14 * trig: --+ +------------------------------------------------------
16 * |<->|
19 * ultra +-+ +-+ +-+
21 * burst: ---------+ +-+ +-+ +-----------------------------------------
23 * ultra . +-+ +-+ +-+
25 * echo: ----------------------------------+ +-+ +-+ +----------------
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/kernel/linux/linux-5.10/Documentation/sound/designs/
Dtimestamping.rst7 - Trigger_tstamp is the system time snapshot taken when the .trigger
11 estimate with a delay. In the latter two cases, the low-level driver
17 - tstamp is the current system timestamp updated during the last
19 The difference (tstamp - trigger_tstamp) defines the elapsed time.
26 The use of these different pointers and time information depends on
29 - ``avail`` reports how much can be written in the ring buffer
30 - ``delay`` reports the time it will take to hear a new sample after all
34 along with a snapshot of system time. Applications can select from
42 of time as measured by different components of audio hardware. In
43 ascii-art, this could be represented as follows (for the playback
[all …]
/kernel/linux/linux-5.10/drivers/iio/temperature/
Dmlx90614.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * mlx90614.c - Support for Melexis MLX90614 contactless IR temperature sensor
9 * Driver for the Melexis MLX90614 I2C 16-bit IR thermopile sensor
11 * (7-bit I2C slave address 0x5a, 100KHz bus speed only!)
14 * for at least 33ms. This is achieved with an extra GPIO that can be connected
18 * always has a pull-up so we do not need an extra GPIO to drive it high. If
37 /* RAM offsets with 16-bit data, MSB first */
44 /* EEPROM offsets with 16-bit data, MSB first */
58 /* Timings (in ms) */
59 #define MLX90614_TIMING_EEPROM 20 /* time for EEPROM write/erase to complete */
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/kernel/linux/linux-5.10/arch/arm64/boot/dts/rockchip/
Drk3399-gru-chromebook.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
3 * Google Gru-Chromebook shared properties
8 #include "rk3399-gru.dtsi"
11 pp900_ap: pp900-ap {
12 compatible = "regulator-fixed";
13 regulator-name = "pp900_ap";
16 regulator-always-on;
17 regulator-boot-on;
18 regulator-min-microvolt = <900000>;
19 regulator-max-microvolt = <900000>;
[all …]
Drk3399-gru-scarlet.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
3 * Google Gru-scarlet board device tree source
8 #include "rk3399-gru.dtsi"
14 pp1250_s3: pp1250-s3 {
15 compatible = "regulator-fixed";
16 regulator-name = "pp1250_s3";
19 regulator-always-on;
20 regulator-boot-on;
21 regulator-min-microvolt = <1250000>;
22 regulator-max-microvolt = <1250000>;
[all …]
/kernel/linux/linux-5.10/net/ipv4/
Dtcp_bbr.c21 * +---> STARTUP ----+
24 * | DRAIN ----+
27 * +---> PROBE_BW ----+
30 * | +----+ |
32 * +---- PROBE_RTT <--+
34 * A BBR flow starts in STARTUP, and ramps up its sending rate quickly.
37 * A long-lived BBR flow spends the vast majority of its time remaining
42 * it briefly enters PROBE_RTT to cut inflight to a minimum value to re-probe
43 * the path's two-way propagation delay (min_rtt). When exiting PROBE_RTT, if
45 * otherwise we enter STARTUP to try to fill the pipe.
[all …]
/kernel/linux/linux-5.10/Documentation/devicetree/bindings/extcon/
Dwlf,arizona.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - patches@opensource.cirrus.com
20 wlf,hpdet-channel:
30 wlf,use-jd2:
35 wlf,use-jd2-nopull:
40 wlf,jd-invert:
45 wlf,micd-software-compare:
50 wlf,micd-detect-debounce:
[all …]
/kernel/linux/linux-5.10/tools/perf/Documentation/
Dperf-trace.txt1 perf-trace(1)
5 ----
6 perf-trace - strace inspired tool
9 --------
15 -----------
22 but the session needs to include the raw_syscalls events (-e 'raw_syscalls:*').
30 -------
32 -a::
33 --all-cpus::
34 System-wide collection from all CPUs.
[all …]
Dperf-stat.txt1 perf-stat(1)
5 ----
6 perf-stat - Run a command and gather performance counter statistics
9 --------
11 'perf stat' [-e <EVENT> | --event=EVENT] [-a] <command>
12 'perf stat' [-e <EVENT> | --event=EVENT] [-a] -- <command> [<options>]
13 'perf stat' [-e <EVENT> | --event=EVENT] [-a] record [-o file] -- <command> [<options>]
14 'perf stat' report [-i file]
17 -----------
23 -------
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/kernel/linux/linux-5.10/sound/soc/codecs/
Dssm2518.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Author: Lars-Peter Clausen <lars@metafoo.de>
142 static const DECLARE_TLV_DB_MINMAX_MUTE(ssm2518_vol_tlv, -7125, 2400);
143 static const DECLARE_TLV_DB_SCALE(ssm2518_compressor_tlv, -3400, 200, 0);
144 static const DECLARE_TLV_DB_SCALE(ssm2518_expander_tlv, -8100, 300, 0);
145 static const DECLARE_TLV_DB_SCALE(ssm2518_noise_gate_tlv, -9600, 300, 0);
146 static const DECLARE_TLV_DB_SCALE(ssm2518_post_drc_tlv, -2400, 300, 0);
149 0, 7, TLV_DB_SCALE_ITEM(-2200, 200, 0),
150 7, 15, TLV_DB_SCALE_ITEM(-800, 100, 0),
154 "0 ms", "0.1 ms", "0.19 ms", "0.37 ms", "0.75 ms", "1.5 ms", "3 ms",
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/kernel/linux/linux-5.10/drivers/net/ethernet/dec/tulip/
Dmedia.c5 Written/copyright 1994-2001 by Donald Becker.
21 met by back-to-back PCI I/O cycles, but we insert a delay to avoid
25 /* Read and write the MII registers using software-generated serial
41 Read and write the MII registers using software-generated serial
43 See IEEE 802.3-2002.pdf (Section 2, Chapter "22.2.4 Management functions")
53 void __iomem *ioaddr = tp->base_addr; in tulip_mdio_read()
60 if (tp->chip_id == COMET && phy_id == 30) { in tulip_mdio_read()
66 spin_lock_irqsave(&tp->mii_lock, flags); in tulip_mdio_read()
67 if (tp->chip_id == LC82C168) { in tulip_mdio_read()
71 for (i = 1000; i >= 0; --i) { in tulip_mdio_read()
[all …]
/kernel/linux/linux-5.10/drivers/iio/adc/
Dat91_adc.c1 // SPDX-License-Identifier: GPL-2.0-or-later
55 #define AT91_ADC_STARTUP_9260 (0x1f << 16) /* Startup Up Time */
59 #define AT91_ADC_SHTIM (0xf << 24) /* Sample & Hold Time */
61 #define AT91_ADC_PENDBC (0x0f << 28) /* Pen Debounce time */
65 #define AT91_ADC_TSR_SHTIM (0xf << 24) /* Sample & Hold Time */
105 #define AT91_ADC_ACR_PENDETSENS (0x3 << 0) /* pull-up resistor */
115 #define AT91_ADC_TSMR_SCTIM (0x0f << 16) /* Switch closure time */
117 #define AT91_ADC_TSMR_PENDBC (0x0f << 28) /* Pen Debounce time */
139 (st->registers->channel_base + (ch * 4))
141 (readl_relaxed(st->reg_base + reg))
[all …]
Dat91-sama5d2_adc.c1 // SPDX-License-Identifier: GPL-2.0-only
12 #include <linux/dma-mapping.h>
70 /* Startup Time */
75 /* Tracking Time */
78 /* Transfer Time */
98 /* Interrupt Enable Register - TS X measurement ready */
100 /* Interrupt Enable Register - TS Y measurement ready */
102 /* Interrupt Enable Register - TS pressure measurement ready */
104 /* Interrupt Enable Register - Data ready */
106 /* Interrupt Enable Register - general overrun error */
[all …]
/kernel/linux/linux-5.10/drivers/watchdog/
Dsc520_wdt.c1 // SPDX-License-Identifier: GPL-2.0-or-later
9 * any of this software. This material is provided "AS-IS" in
13 * 9/27 - 2001 [Initial release]
16 * - Fixed formatting
17 * - Removed debug printks
18 * - Fixed SMP built kernel deadlock
19 * - Switched to private locks not lock_kernel
20 * - Used ioremap/writew/readw
21 * - Added NOWAYOUT support
22 * 4/12 - 2002 Changes by Rob Radez <rob@osinvestor.com>
[all …]
/kernel/linux/linux-5.10/Documentation/ide/
Dide.rst9 -------------------------------------------------------------------------------
16 automatically at startup when PCI BIOS support is configured.
21 For the CMD640, linux disables "IRQ unmasking" (hdparm -u1) on any
23 If "prefetch" is disabled (hdparm -p8), then "IRQ unmasking" can be
26 For the CMD640, linux disables "32bit I/O" (hdparm -c1) on any drive
28 If "prefetch" is enabled (hdparm -p9), then "32bit I/O" can be
37 -------------------------------------------------------------------------------
42 - 40-conductor IDE cables are capable of transferring data in DMA modes up to
45 - If possible devices should be attached to separate channels if they are
46 available. Typically the disk on the first and CD-ROM on the second.
[all …]
/kernel/linux/linux-5.10/arch/m68k/bvme6000/
Dconfig.c32 #include <asm/bootinfo-vme.h>
49 if (be16_to_cpu(bi->tag) == BI_VME_TYPE) in bvme6000_parse_bootinfo()
65 pit->pcddr |= 0x10; /* WDOG enable */ in bvme6000_reset()
77 * This function is called during kernel startup to initialize
116 pit->pgcr = 0x00; /* Unidirectional 8 bit, no handshake for now */ in config_bvme6000()
117 pit->psrr = 0x18; /* PIACK and PIRQ functions enabled */ in config_bvme6000()
118 pit->pacr = 0x00; /* Sub Mode 00, H2 i/p, no DMA */ in config_bvme6000()
119 pit->padr = 0x00; /* Just to be tidy! */ in config_bvme6000()
120 pit->paddr = 0x00; /* All inputs for now (safest) */ in config_bvme6000()
121 pit->pbcr = 0x80; /* Sub Mode 1x, H4 i/p, no DMA */ in config_bvme6000()
[all …]
/kernel/linux/linux-5.10/Documentation/driver-api/
Dpps.rst1 .. SPDX-License-Identifier: GPL-2.0
4 PPS - Pulse Per Second
22 --------
29 can use it to adjust system clock time.
32 Carrier Detect pin) or to a parallel port (ACK-pin) or to a special
38 GPS receiver as PPS source, to obtain a wallclock-time with
39 sub-millisecond synchronisation to UTC.
43 ------------------
46 CPU GPIO-Pin as physical link to the signal, I encountered a deeper
49 At startup it needs a file descriptor as argument for the function
[all …]
/kernel/linux/linux-5.10/arch/x86/boot/compressed/
Dhead_64.S1 /* SPDX-License-Identifier: GPL-2.0 */
9 * head.S contains the 32-bit startup code.
11 * NOTE!!! Startup happens at absolute address 0x00001000, which is also where
12 * the page directory will exist. The startup code will be overwritten by
14 * kernel it will end up at 0x1000 + 1Mb I hope so as I assume this. - AC]
33 #include <asm/processor-flags.h>
34 #include <asm/asm-offsets.h>
50 * from startup_32. This is the same as the link-time virtual address of X,
52 * assembler/linker that we do not want the actual run-time address of X. This
53 * prevents the linker from trying to create unwanted run-time relocation
[all …]
/kernel/linux/linux-5.10/drivers/staging/media/atomisp/i2c/
Datomisp-ov2722.c1 // SPDX-License-Identifier: GPL-2.0
31 #include <media/v4l2-device.h>
46 if (!client->adapter) { in ov2722_read_reg()
47 dev_err(&client->dev, "%s error, no client->adapter\n", in ov2722_read_reg()
49 return -ENODEV; in ov2722_read_reg()
54 dev_err(&client->dev, "%s error, invalid data length\n", in ov2722_read_reg()
56 return -EINVAL; in ov2722_read_reg()
61 msg[0].addr = client->addr; in ov2722_read_reg()
70 msg[1].addr = client->addr; in ov2722_read_reg()
75 err = i2c_transfer(client->adapter, msg, 2); in ov2722_read_reg()
[all …]
/kernel/linux/linux-5.10/drivers/usb/musb/
Dmusb_virthub.c1 // SPDX-License-Identifier: GPL-2.0
6 * Copyright (C) 2005-2006 by Texas Instruments
7 * Copyright (C) 2006-2007 Nokia Corporation
14 #include <linux/time.h>
29 spin_lock_irqsave(&musb->lock, flags); in musb_host_finish_resume()
31 power = musb_readb(musb->mregs, MUSB_POWER); in musb_host_finish_resume()
34 musb_writeb(musb->mregs, MUSB_POWER, power); in musb_host_finish_resume()
41 musb->is_active = 1; in musb_host_finish_resume()
42 musb->port1_status &= ~(USB_PORT_STAT_SUSPEND | MUSB_PORT_STAT_RESUME); in musb_host_finish_resume()
43 musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16; in musb_host_finish_resume()
[all …]
/kernel/linux/linux-5.10/Documentation/networking/device_drivers/ethernet/dec/
Dde4x5.rst1 .. SPDX-License-Identifier: GPL-2.0
10 - DE425 TP/COAX EISA
11 - DE434 TP PCI
12 - DE435 TP/COAX/AUI PCI
13 - DE450 TP/COAX/AUI PCI
14 - DE500 10/100 PCI Fasternet
20 - DC21040 (no SROM)
21 - DC21041[A]
22 - DC21140[A]
23 - DC21142
[all …]

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