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/Documentation/devicetree/bindings/net/can/
Dfsl,flexcan.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 Flexcan CAN controller on Freescale's ARM and PowerPC system-on-a-chip (SOC).
11 - Marc Kleine-Budde <mkl@pengutronix.de>
14 - $ref: can-controller.yaml#
19 - enum:
20 - fsl,imx95-flexcan
21 - fsl,imx93-flexcan
22 - fsl,imx8qm-flexcan
[all …]
/Documentation/tools/rtla/
Dcommon_osnoise_options.rst1 **-a**, **--auto** *us*
3 Set the automatic trace mode. This mode sets some commonly used options
4 while debugging the system. It is equivalent to use **-s** *us* **-T 1 -t**.
6 **-p**, **--period** *us*
10 **-r**, **--runtime** *us*
14 **-s**, **--stop** *us*
16 Stop the trace if a single sample is higher than the argument in microseconds.
17 If **-T** is set, it will also save the trace to the output.
19 **-S**, **--stop-total** *us*
21 Stop the trace if the total sample is higher than the argument in microseconds.
[all …]
Dcommon_timerlat_options.rst1 **-a**, **--auto** *us*
3 Set the automatic trace mode. This mode sets some commonly used options
4 while debugging the system. It is equivalent to use **-T** *us* **-s** *us*
5 **-t**. By default, *timerlat* tracer uses FIFO:95 for *timerlat* threads,
6 thus equilavent to **-P** *f:95*.
8 **-p**, **--period** *us*
12 **-i**, **--irq** *us*
14 Stop trace if the *IRQ* latency is higher than the argument in us.
16 **-T**, **--thread** *us*
18 Stop trace if the *Thread* latency is higher than the argument in us.
[all …]
Drtla-timerlat-top.rst2 rtla-timerlat-top
4 -------------------------------------------
6 -------------------------------------------
22 seem with the option **-T**.
35 **--aa-only** *us*
37 Set stop tracing conditions and run without collecting and displaying statistics.
38 Print the auto-analysis if the system hits the stop tracing condition. This option
45 In the example below, the timerlat tracer is dispatched in cpus *1-23* in the
46 automatic trace mode, instructing the tracer to stop if a *40 us* latency or
49 # timerlat -a 40 -c 1-23 -q
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/Documentation/devicetree/bindings/net/
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
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Dfsl,fec.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Shawn Guo <shawnguo@kernel.org>
11 - Wei Fang <wei.fang@nxp.com>
12 - NXP Linux Team <linux-imx@nxp.com>
15 - $ref: ethernet-controller.yaml#
20 - enum:
21 - fsl,imx25-fec
22 - fsl,imx27-fec
[all …]
/Documentation/devicetree/bindings/arm/freescale/
Dfsl,imx7ulp-pm.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/arm/freescale/fsl,imx7ulp-pm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - A.s. Dong <aisheng.dong@nxp.com>
13 The Multi-System Mode Controller (MSMC) is responsible for sequencing
14 the MCU into and out of all stop and run power modes. Specifically, it
17 power consumption and functionality of that mode.
20 Standby modes for either Cortex family. Run, Wait, and Stop are the
26 const: fsl,imx7ulp-smc1
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/Documentation/devicetree/bindings/input/
Ddlg,da7280.txt4 - compatible: Should be "dlg,da7280".
5 - reg: Specifies the I2C slave address.
7 - interrupt-parent : Specifies the phandle of the interrupt controller to
10 - dlg,actuator-type: Set Actuator type. it should be one of:
11 "LRA" - Linear Resonance Actuator type.
12 "ERM-bar" - Bar type Eccentric Rotating Mass.
13 "ERM-coin" - Coin type Eccentric Rotating Mass.
15 - dlg,const-op-mode: Haptic operation mode for FF_CONSTANT.
17 1 - Direct register override(DRO) mode triggered by i2c(default),
18 2 - PWM data source mode controlled by PWM duty,
[all …]
/Documentation/devicetree/bindings/clock/ti/
Ddpll.txt4 register-mapped DPLL with usually two selectable input clocks
8 modes (locked, low power stop etc.) This binding has several
9 sub-types, which effectively result in slightly different setup
12 [1] Documentation/devicetree/bindings/clock/clock-bindings.txt
15 - compatible : shall be one of:
16 "ti,omap3-dpll-clock",
17 "ti,omap3-dpll-core-clock",
18 "ti,omap3-dpll-per-clock",
19 "ti,omap3-dpll-per-j-type-clock",
20 "ti,omap4-dpll-clock",
[all …]
/Documentation/hwmon/
Dw83792d.rst10 Addresses scanned: I2C 0x2c - 0x2f
19 -----------------
35 -----------
42 parameter; this will put it into a more well-behaved state first.
46 strategies called: Smart Fan I (Thermal Cruise mode) and Smart Fan II.
48 The driver also implements up to seven fan control outputs: pwm1-7. Pwm1-7
53 Automatic fan control mode is possible only for fan1-fan3.
116 ----------------
118 - This driver is only for Winbond W83792D C version device, there
120 calculation method to in6-in7(measured value, limits) is a little
[all …]
Dw83l786ng.rst10 Addresses scanned: I2C 0x2e - 0x2f
12 Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83L786NRNG09.pdf
18 -----------------
28 -----------
47 ----------
49 pwm[1-2]
50 - this file stores PWM duty cycle or DC value (fan speed) in range:
52 0 (stop) to 255 (full)
53 pwm[1-2]_enable
54 - this file controls mode of fan/temperature control:
[all …]
Dthmc50.rst10 Addresses scanned: I2C 0x2c - 0x2e
18 Addresses scanned: I2C 0x2c - 0x2e
31 - Frodo Looijaard <frodol@dds.nl>
32 - Philip Edelbrock <phil@netroedge.com>
35 -----------------
38 List of adapter,address pairs to force chips into ADM1022 mode with
42 -----------
45 external diode-type temperature sensor (compatible w/ the diode sensor inside
48 register and Hysteresis register. Each value can be set and read to half-degree
52 degrees Celsius, and are guaranteed within a range of -55 to +125 degrees.
[all …]
/Documentation/userspace-api/media/rc/
Drc-tables.rst1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
30 .. flat-table:: IR default keymapping
31 :header-rows: 0
32 :stub-columns: 0
36 - .. row 1
38 - Key code
40 - Meaning
42 - Key examples on IR
44 - .. row 2
46 - **Numeric keys**
[all …]
/Documentation/filesystems/spufs/
Dspu_run.rst1 .. SPDX-License-Identifier: GPL-2.0
10 spu_run - execute an spu context
25 Cell Broadband Engine Architecture in order to access Synergistic Pro-
26 cessor Units (SPUs). It uses the fd that was returned from spu_cre-
27 ate(2) to address a specific SPU context. When the context gets sched-
32 not return while the SPU is still running. If there is a need to exe-
42 gets filled when spu_run returns. It can be one of the following con-
59 spu_run returns the value of the spu_status register or -1 to indicate
62 optionally a 14 bit code returned from the stop-and-signal instruction
66 SPU was stopped by stop-and-signal.
[all …]
/Documentation/userspace-api/media/cec/
Dcec-pin-error-inj.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
9 has low-level support for the CEC bus. Most hardware today will have
10 high-level CEC support where the hardware deals with driving the CEC bus,
19 Currently only the cec-gpio driver (when the CEC line is directly
20 connected to a pull-up GPIO line) and the AllWinner A10/A20 drm driver
25 now an ``error-inj`` file.
32 With ``cat error-inj`` you can see both the possible commands and the current
35 $ cat /sys/kernel/debug/cec/cec0/error-inj
38 # rx-clear clear all rx error injections
39 # tx-clear clear all tx error injections
[all …]
/Documentation/PCI/endpoint/
Dpci-endpoint.rst1 .. SPDX-License-Identifier: GPL-2.0
13 operates in Root Complex mode. The subsystem has capability to scan PCI bus,
15 vendor ID, device ID), support other services like hot-plug, power management,
19 either in Root Complex mode or Endpoint mode. PCI Endpoint Framework will
20 add endpoint mode support in Linux. This will help to run Linux in an
22 validation, co-processor accelerator, etc.
32 ------------------------------------
35 in endpoint mode. It also provides APIs to be used by function driver/library
53 * raise_irq: ops to raise a legacy, MSI or MSI-X interrupt
55 * stop: ops to stop the PCI link
[all …]
/Documentation/devicetree/bindings/soc/renesas/
Drenesas,rzg2l-sysc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/soc/renesas/renesas,rzg2l-sysc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Geert Uytterhoeven <geert+renesas@glider.be>
13 The RZ/{G2L,V2L}-alike System Controller (SYSC) performs system control of
15 - External terminal state capture function
16 - 34-bit address space access function
17 - Low power consumption control
18 - WDT stop control
[all …]
/Documentation/admin-guide/laptops/
Dlaptop-mode.rst2 How to conserve battery power using laptop-mode
12 ------------
14 Laptop mode is used to minimize the time that the hard disk needs to be spun up,
31 ------------
33 To use laptop mode, you don't need to set any kernel configuration options
35 laptop mode will automatically be started when you're on battery. For
40 To configure laptop mode, you need to edit the configuration file, which is
41 located in /etc/default/laptop-mode on Debian-based systems, or in
42 /etc/sysconfig/laptop-mode on other systems.
44 Unfortunately, automatic enabling of laptop mode does not work for
[all …]
/Documentation/devicetree/bindings/sound/
Ddmic-codec.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/sound/dmic-codec.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
13 - $ref: dai-common.yaml#
17 const: dmic-codec
19 '#sound-dai-cells':
22 dmicen-gpios:
23 description: GPIO specifier for DMIC to control start and stop
[all …]
/Documentation/trace/
Dintel_th.rst1 .. SPDX-License-Identifier: GPL-2.0
8 --------
23 - Software Trace Hub (STH), trace source, which is a System Trace
25 - Memory Storage Unit (MSU), trace output, which allows storing
27 - Parallel Trace Interface output (PTI), trace output to an external
29 - Global Trace Hub (GTH), which is a switch and a central component
33 Documentation/ABI/testing/sysfs-bus-intel_th-output-devices, the most
39 description is at Documentation/ABI/testing/sysfs-bus-intel_th-devices-gth.
54 [1] https://software.intel.com/sites/default/files/managed/d3/3c/intel-th-developer-manual.pdf
57 ------------------
[all …]
/Documentation/networking/
Dstrparser.rst1 .. SPDX-License-Identifier: GPL-2.0
18 mode.
20 In receive callback mode, the strparser is called from the data_ready
24 In general mode, a sequence of skbs are fed to strparser from an
33 functions, and a data_ready function for receive callback mode. The
49 callback mode; in general mode this is set to NULL. Callbacks
69 strp_stop is called to completely stop stream parser operations.
71 error, and it is called from the upper layer to stop parsing
88 strp_process is called in general mode for a stream parser to
126 The skb->cb in the input skb is a struct strp_msg. Only
[all …]
/Documentation/sound/designs/
Dcompress-accel.rst2 ALSA Co-processor Acceleration API
16 is able to handle "tasks" that are not bound to real-time operations
24 - serialization of multiple tasks for user space to allow multiple
27 - separate buffers (input + output) for each operation
29 - expose buffers using mmap to user space
31 - signal user space when the task is finished (standard poll mechanism)
45 states are not available for the passthrough mode.
47 Data I/O mechanism is using standard dma-buf interface with all advantages
62 +----------+
66 +----------+
[all …]
/Documentation/devicetree/bindings/cpu/
Didle-states.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/cpu/idle-states.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
11 - Anup Patel <anup@brainfault.org>
15 1 - Introduction
18 ARM and RISC-V systems contain HW capable of managing power consumption
19 dynamically, where cores can be put in different low-power states (ranging
22 run-time, can be specified through device tree bindings representing the
[all …]
/Documentation/driver-api/media/
Dtx-rx.rst1 .. SPDX-License-Identifier: GPL-2.0
3 .. _transmitter-receiver:
10 CSI-2 receiver in an SoC.
13 ---------
17 MIPI CSI-2
20 CSI-2 is a data bus intended for transferring images from cameras to
32 .. _`BT.656`: https://en.wikipedia.org/wiki/ITU-R_BT.656
35 -------------------
44 See :ref:`v4l2-mbus-pixelcode`.
49 The :ref:`V4L2_CID_LINK_FREQ <v4l2-cid-link-freq>` control is used to tell the
[all …]
Dcamera-sensor.rst1 .. SPDX-License-Identifier: GPL-2.0
8 This document covers the in-kernel APIs only. For the best practices on
12 CSI-2, parallel and BT.656 buses
13 --------------------------------
15 Please see :ref:`transmitter-receiver`.
18 ---------------
29 elsewhere. Therefore only the pre-determined frequencies are configurable by the
35 Read the ``clock-frequency`` _DSD property to denote the frequency. The driver
41 The preferred way to achieve this is using ``assigned-clocks``,
42 ``assigned-clock-parents`` and ``assigned-clock-rates`` properties. See the
[all …]

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