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/openbmc/linux/Documentation/devicetree/bindings/net/
H A Dmdio.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Andrew Lunn <andrew@lunn.ch>
11 - Florian Fainelli <f.fainelli@gmail.com>
12 - Heiner Kallweit <hkallweit1@gmail.com>
17 bus. These should follow the generic ethernet-phy.yaml document, or
24 "#address-cells":
27 "#size-cells":
30 reset-gpios:
[all …]
H A Dethernet-phy.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/net/ethernet-phy.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Andrew Lunn <andrew@lunn.ch>
11 - Florian Fainelli <f.fainelli@gmail.com>
12 - Heiner Kallweit <hkallweit1@gmail.com>
14 # The dt-schema tools will generate a select statement first by using
21 pattern: "^ethernet-phy(@[a-f0-9]+)?$"
24 - $nodename
[all …]
/openbmc/linux/Documentation/devicetree/bindings/regulator/
H A Drichtek,rtmv20-regulator.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/regulator/richtek,rtmv20-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - ChiYuan Huang <cy_huang@richtek.com>
27 wakeup-source: true
32 enable-gpios:
36 richtek,ld-pulse-delay-us:
38 load current pulse delay in microsecond after strobe pin pulse high.
43 richtek,ld-pulse-width-us:
[all …]
H A Dfixed-regulator.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/regulator/fixed-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Liam Girdwood <lgirdwood@gmail.com>
11 - Mark Brown <broonie@kernel.org>
16 expected to have the regulator-min-microvolt and regulator-max-microvolt
20 - $ref: regulator.yaml#
21 - if:
25 const: regulator-fixed-clock
[all …]
H A Dregulator-max77620.txt3 Device has multiple DCDC(sd[0-3] and LDOs(ldo[0-8]). The input supply
6 sub-node "regulators" which is child node of device node.
14 -------------------
18 in-sd0-supply: Input supply for SD0, INA-SD0 or INB-SD0 pins.
19 in-sd1-supply: Input supply for SD1.
20 in-sd2-supply: Input supply for SD2.
21 in-sd3-supply: Input supply for SD3.
22 in-ldo0-1-supply: Input supply for LDO0 and LDO1.
23 in-ldo2-supply: Input supply for LDO2.
24 in-ldo3-5-supply: Input supply for LDO3 and LDO5
[all …]
H A Dmps,mpq7920.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Saravanan Sekar <sravanhome@gmail.com>
14 pattern: "pmic@[0-9a-f]{1,2}"
17 - mps,mpq7920
27 after their hardware counterparts BUCK[1-4], one LDORTC, and LDO[2-5]
30 mps,switch-freq:
44 "^ldo[1-4]$":
49 "^buck[1-4]$":
[all …]
/openbmc/linux/drivers/hwmon/pmbus/
H A Dmax15301.c1 // SPDX-License-Identifier: GPL-2.0-or-later
8 * extensive empirical testing has revealed that auto-detection of
9 * limit-registers will fail in a random fashion unless the delay
10 * parameter is set to above about 80us. The default delay is set
11 * to 100us to include some safety margin.
21 #include <linux/delay.h>
35 int delay; /* Delay between chip accesses in us */ member
41 #define MAX15301_WAIT_TIME 100 /* us */
43 static ushort delay = MAX15301_WAIT_TIME; variable
44 module_param(delay, ushort, 0644);
[all …]
/openbmc/linux/tools/testing/selftests/ftrace/test.d/preemptirq/
H A Dirqsoff_tracer.tc2 # SPDX-License-Identifier: GPL-2.0
36 modprobe $MOD test_mode=preempt delay=500000 || fail
38 modprobe $MOD test_mode=preempt delay=500000 || fail
40 modprobe $MOD test_mode=preempt delay=500000 || fail
46 grep -q "tracer: preemptoff" trace || fail
49 grep -E -q "5.....us : <stack trace>" trace || fail
52 grep -E -q "latency: 5..... us" trace || fail
59 modprobe $MOD test_mode=irq delay=500000 || fail
61 modprobe $MOD test_mode=irq delay=500000 || fail
63 modprobe $MOD test_mode=irq delay=500000 || fail
[all …]
/openbmc/u-boot/doc/device-tree-bindings/i2c/
H A Di2c-gpio.txt5 - drivers/i2c/i2c-gpio.c
7 Software i2c device-tree node properties:
9 * #address-cells = <1>;
10 * #size-cells = <0>;
11 * compatible = "i2c-gpio";
15 * i2c-gpio,delay-us = <5>;
16 The resulting transfer speed can be adjusted by setting the delay[us]
17 between gpio-toggle operations. Speed [Hz] = 1000000 / 4 * udelay[us],
18 It not defined, then default is 5us (~50KHz).
22 i2c-gpio@1 {
[all …]
/openbmc/linux/Documentation/devicetree/bindings/input/touchscreen/
H A Dad7879.txt1 * Analog Devices AD7879(-1)/AD7889(-1) touchscreen interface (SPI/I2C)
4 - compatible : for SPI slave, use "adi,ad7879"
5 for I2C slave, use "adi,ad7879-1"
6 - reg : SPI chipselect/I2C slave address
7 See spi-bus.txt for more SPI slave properties
8 - interrupts : touch controller interrupt
9 - touchscreen-max-pressure : maximum reported pressure
10 - adi,resistance-plate-x : total resistance of X-plate (for pressure
13 - touchscreen-swapped-x-y : X and Y axis are swapped (boolean)
14 - adi,first-conversion-delay : 0-12: In 128us steps (starting with 128us)
[all …]
/openbmc/linux/Documentation/devicetree/bindings/mmc/
H A Dmmc-pwrseq-simple.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/mmc/mmc-pwrseq-simple.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Ulf Hansson <ulf.hansson@linaro.org>
14 of common properties between various SOC designs. It thus enables us to use
19 const: mmc-pwrseq-simple
21 reset-gpios:
28 They will be de-asserted right after the power has been provided to the
33 description: Handle for the entry in clock-names.
[all …]
/openbmc/linux/tools/testing/selftests/kvm/
H A Drseq_test.c1 // SPDX-License-Identifier: GPL-2.0-only
26 * Any bug related to task migration is likely to be timing-dependent; perform
82 * is in-progress, while a completely different count indicates in migration_worker()
89 * stable, i.e. while changing affinity is in-progress. in migration_worker()
101 * Wait 1-10us before proceeding to the next iteration and more in migration_worker()
102 * specifically, before bumping seq_cnt again. A delay is in migration_worker()
128 * 3. To ensure the read-side makes efficient forward progress, in migration_worker()
129 * e.g. if getcpu() involves a syscall. Stalling the read-side in migration_worker()
131 * to stabilize and less time trying to hit the timing-dependent in migration_worker()
134 * Because any bug in this area is likely to be timing-dependent, in migration_worker()
[all …]
/openbmc/u-boot/arch/arm/dts/
H A Dkirkwood-synology.dtsi1 // SPDX-License-Identifier: GPL-2.0
12 pinctrl: pin-controller@10000 {
13 pmx_alarmled_12: pmx-alarmled-12 {
18 pmx_fanctrl_15: pmx-fanctrl-15 {
23 pmx_fanctrl_16: pmx-fanctrl-16 {
28 pmx_fanctrl_17: pmx-fanctrl-17 {
33 pmx_fanalarm_18: pmx-fanalarm-18 {
38 pmx_hddled_20: pmx-hddled-20 {
43 pmx_hddled_21: pmx-hddled-21 {
48 pmx_hddled_22: pmx-hddled-22 {
[all …]
/openbmc/linux/arch/arm/boot/dts/marvell/
H A Dkirkwood-synology.dtsi1 // SPDX-License-Identifier: GPL-2.0
12 pinctrl: pin-controller@10000 {
13 pmx_alarmled_12: pmx-alarmled-12 {
18 pmx_fanctrl_15: pmx-fanctrl-15 {
23 pmx_fanctrl_16: pmx-fanctrl-16 {
28 pmx_fanctrl_17: pmx-fanctrl-17 {
33 pmx_fanalarm_18: pmx-fanalarm-18 {
38 pmx_hddled_20: pmx-hddled-20 {
43 pmx_hddled_21: pmx-hddled-21 {
48 pmx_hddled_22: pmx-hddled-22 {
[all …]
/openbmc/linux/Documentation/devicetree/bindings/input/
H A Dti,nspire-keypad.txt1 TI-NSPIRE Keypad
4 - compatible: Compatible property value should be "ti,nspire-keypad".
6 - reg: Physical base address of the peripheral and length of memory mapped
9 - interrupts: The interrupt number for the peripheral.
11 - scan-interval: How often to scan in us. Based on a APB speed of 33MHz, the
12 maximum and minimum delay time is ~2000us and ~500us respectively
14 - row-delay: How long to wait before scanning each row.
16 - clocks: The clock this peripheral is attached to.
18 - linux,keymap: The keymap to use
19 (see Documentation/devicetree/bindings/input/matrix-keymap.txt)
[all …]
H A Dgpio-matrix-keypad.txt6 keypad can sense a key-press and key-release by means of GPIO lines and
10 - compatible: Should be "gpio-matrix-keypad"
11 - row-gpios: List of gpios used as row lines. The gpio specifier
14 - col-gpios: List of gpios used as column lines. The gpio specifier
17 - linux,keymap: The definition can be found at
18 bindings/input/matrix-keymap.txt
21 - linux,no-autorepeat: do no enable autorepeat feature.
22 - wakeup-source: use any event on keypad as wakeup event.
24 - debounce-delay-ms: debounce interval in milliseconds
25 - col-scan-delay-us: delay, measured in microseconds, that is needed
[all …]
H A Dsyna,rmi4.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jason A. Donenfeld <Jason@zx2c4.com>
11 - Matthias Schiffer <matthias.schiffer@ew.tq-group.com
12 - Vincent Huang <vincent.huang@tw.synaptics.com>
22 - syna,rmi4-i2c
23 - syna,rmi4-spi
28 '#address-cells':
31 '#size-cells':
[all …]
/openbmc/linux/arch/arm/boot/dts/nxp/imx/
H A Dimx6dl-victgo.dts1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
7 /dts-v1/;
9 #include "imx6qdl-vicut1.dtsi"
15 gpio-keys {
16 compatible = "gpio-keys";
17 pinctrl-names = "default";
18 pinctrl-0 = <&pinctrl_gpiokeys>;
21 key-power {
25 wakeup-source;
28 key-enter {
[all …]
H A Dimx6dl-mamoj.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
7 /dts-v1/;
9 #include <dt-bindings/gpio/gpio.h>
14 compatible = "bticino,imx6dl-mamoj", "fsl,imx6dl";
22 backlight_lcd: backlight-lcd {
23 compatible = "pwm-backlight";
24 pwms = <&pwm3 0 25000>; /* 25000ns -> 40kHz */
25 brightness-levels = <0 4 8 16 32 64 128 160 192 224 255>;
26 default-brightness-level = <7>;
30 compatible = "fsl,imx-parallel-display";
[all …]
H A Dimx6dl-plym2m.dts1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
7 /dts-v1/;
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/leds/common.h>
17 stdout-path = &uart4;
21 compatible = "pwm-backlight";
23 brightness-levels = <0 1000>;
24 num-interpolated-steps = <20>;
25 default-brightness-level = <19>;
26 power-supply = <&reg_12v0>;
[all …]
/openbmc/linux/tools/testing/selftests/net/
H A Dtxtimestamp.sh2 # SPDX-License-Identifier: GPL-2.0
5 # Verify that timestamps correspond to netem delay
7 set -e
10 # set 1ms delay on lo egress
11 tc qdisc add dev lo root netem delay 1ms
13 # set 2ms delay on ifb0 egress
17 tc qdisc add dev ifb_netem0 root netem delay 2ms
27 # SND will be delayed 1000us
28 # ACK will be delayed 6000us: 1 + 2 ms round-trip
29 local -r args="$@ -v 1000 -V 6000"
[all …]
/openbmc/linux/arch/arm64/boot/dts/nvidia/
H A Dtegra210-p2180.dtsi1 // SPDX-License-Identifier: GPL-2.0
2 #include <dt-bindings/mfd/max77620.h>
17 stdout-path = "serial0:115200n8";
26 vdd-supply = <&vdd_gpu>;
31 /delete-property/ dmas;
32 /delete-property/ dma-names;
45 vcc-supply = <&vdd_1v8>;
46 address-width = <8>;
49 read-only;
55 clock-frequency = <400000>;
[all …]
/openbmc/linux/Documentation/devicetree/bindings/spi/
H A Dspi-peripheral-props.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/spi/spi-peripheral-props.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Peripheral-specific properties for a SPI bus.
11 be common properties like spi-max-frequency, spi-cpha, etc. or they could be
12 controller specific like delay in clock or data lines, etc. These properties
13 need to be defined in the peripheral node because they are per-peripheral and
19 - Mark Brown <broonie@kernel.org>
27 - minimum: 0
[all …]
/openbmc/linux/sound/pci/emu10k1/
H A Dtimer.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (c) by Lee Revell <rlrevell@joe-job.com>
17 unsigned int delay; in snd_emu10k1_timer_start() local
20 delay = timer->sticks - 1; in snd_emu10k1_timer_start()
21 if (delay < 5 ) /* minimum time is 5 ticks */ in snd_emu10k1_timer_start()
22 delay = 5; in snd_emu10k1_timer_start()
24 outw(delay & TIMER_RATE_MASK, emu->port + TIMER); in snd_emu10k1_timer_start()
41 if (emu->card_capabilities->emu_model && in snd_emu10k1_timer_c_resolution()
42 emu->emu1010.word_clock == 44100) in snd_emu10k1_timer_c_resolution()
43 return 22676; // 1 sample @ 44.1 kHz = 22.675736...us in snd_emu10k1_timer_c_resolution()
[all …]
/openbmc/u-boot/doc/device-tree-bindings/regulator/
H A Dfixed.txt4 The binding is done by the property "compatible" - this is different, than for
5 binding by the node prefix (doc/device-tree-bindings/regulator/regulator.txt).
8 - compatible: "regulator-fixed"
9 - regulator-name: this is required by the regulator uclass
12 - gpio: GPIO to use for enable control
13 - startup-delay-us: startup time in microseconds
14 - u-boot,off-on-delay-us: off delay time in microseconds
15 - regulator constraints (binding info: regulator.txt)
16 - enable-active-high: Polarity of GPIO is Active high. If this property
20 Other kernel-style properties, are currently not used.
[all …]

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