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/Documentation/devicetree/bindings/clock/
Dbrcm,kona-ccu.txt4 clock control units (CCUs). A CCU is a clock provider that manages
5 a set of clock signals. Each CCU is represented by a node in the
8 This binding uses the common clock binding:
9 Documentation/devicetree/bindings/clock/clock-bindings.txt
12 - compatible
13 Shall have a value of the form "brcm,<model>-<which>-ccu",
16 "brcm,bcm11351-root-ccu"
19 - reg
21 containing clock control registers
22 - #clock-cells
[all …]
Dsilabs,si5351.txt1 Binding for Silicon Labs Si5351a/b/c programmable i2c clock generator.
7 The Si5351a/b/c are programmable i2c clock generators with up to 8 output
8 clocks. Si5351a also has a reduced pin-count package (MSOP10) where only
9 3 output clocks are accessible. The internal structure of the clock
15 - compatible: shall be one of the following:
16 "silabs,si5351a" - Si5351a, QFN20 package
17 "silabs,si5351a-msop" - Si5351a, MSOP10 package
18 "silabs,si5351b" - Si5351b, QFN20 package
19 "silabs,si5351c" - Si5351c, QFN20 package
20 - reg: i2c device address, shall be 0x60 or 0x61.
[all …]
/Documentation/sound/soc/
Dclocking.rst9 Master Clock
10 ------------
12 Every audio subsystem is driven by a master clock (sometimes referred to as MCLK
13 or SYSCLK). This audio master clock can be derived from a number of sources
14 (e.g. crystal, PLL, CPU clock) and is responsible for producing the correct
17 Some master clocks (e.g. PLLs and CPU based clocks) are configurable in that
19 power). Other master clocks are fixed at a set frequency (i.e. crystals).
23 ----------
24 The Digital Audio Interface is usually driven by a Bit Clock (often referred to
25 as BCLK). This clock is used to drive the digital audio data across the link
[all …]
/Documentation/ABI/testing/
Dsysfs-bus-soundwire-master1 What: /sys/bus/soundwire/devices/sdw-master-N/revision
2 /sys/bus/soundwire/devices/sdw-master-N/clk_stop_modes
3 /sys/bus/soundwire/devices/sdw-master-N/clk_freq
4 /sys/bus/soundwire/devices/sdw-master-N/clk_gears
5 /sys/bus/soundwire/devices/sdw-master-N/default_col
6 /sys/bus/soundwire/devices/sdw-master-N/default_frame_rate
7 /sys/bus/soundwire/devices/sdw-master-N/default_row
8 /sys/bus/soundwire/devices/sdw-master-N/dynamic_shape
9 /sys/bus/soundwire/devices/sdw-master-N/err_threshold
10 /sys/bus/soundwire/devices/sdw-master-N/max_clk_freq
[all …]
/Documentation/devicetree/bindings/fsi/
Dfsi-master-gpio.txt1 Device-tree bindings for gpio-based FSI master driver
2 -----------------------------------------------------
5 - compatible = "fsi-master-gpio";
6 - clock-gpios = <gpio-descriptor>; : GPIO for FSI clock
7 - data-gpios = <gpio-descriptor>; : GPIO for FSI data signal
10 - enable-gpios = <gpio-descriptor>; : GPIO for enable signal
11 - trans-gpios = <gpio-descriptor>; : GPIO for voltage translator enable
12 - mux-gpios = <gpio-descriptor>; : GPIO for pin multiplexing with other
14 - no-gpio-delays; : Don't add extra delays between GPIO
21 fsi-master {
[all …]
Dfsi-master-ast-cf.txt1 Device-tree bindings for ColdFire offloaded gpio-based FSI master driver
2 ------------------------------------------------------------------------
5 - compatible =
6 "aspeed,ast2400-cf-fsi-master" for an AST2400 based system
8 "aspeed,ast2500-cf-fsi-master" for an AST2500 based system
10 - clock-gpios = <gpio-descriptor>; : GPIO for FSI clock
11 - data-gpios = <gpio-descriptor>; : GPIO for FSI data signal
12 - enable-gpios = <gpio-descriptor>; : GPIO for enable signal
13 - trans-gpios = <gpio-descriptor>; : GPIO for voltage translator enable
14 - mux-gpios = <gpio-descriptor>; : GPIO for pin multiplexing with other
[all …]
Dfsi-master-aspeed.txt1 Device-tree bindings for AST2600 FSI master
2 -------------------------------------------
4 The AST2600 contains two identical FSI masters. They share a clock and have a
8 - compatible: "aspeed,ast2600-fsi-master"
9 - reg: base address and length
10 - clocks: phandle and clock number
11 - interrupts: platform dependent interrupt description
12 - pinctrl-0: phandle to pinctrl node
13 - pinctrl-names: pinctrl state
16 - cfam-reset-gpios: GPIO for CFAM reset
[all …]
/Documentation/devicetree/bindings/iommu/
Drockchip,iommu.txt5 its master device. Each slave device is bound to a single master device, and
9 - compatible : Should be "rockchip,iommu"
10 - reg : Address space for the configuration registers
11 - interrupts : Interrupt specifier for the IOMMU instance
12 - interrupt-names : Interrupt name for the IOMMU instance
13 - #iommu-cells : Should be <0>. This indicates the iommu is a
14 "single-master" device, and needs no additional information
15 to associate with its master device. See:
17 - clocks : A list of clocks required for the IOMMU to be accessible by
19 - clock-names : Should contain the following:
[all …]
Dmsm,iommu-v0.txt5 of the CPU, each connected to the IOMMU through a port called micro-TLB.
9 - compatible: Must contain "qcom,apq8064-iommu".
10 - reg: Base address and size of the IOMMU registers.
11 - interrupts: Specifiers for the MMU fault interrupts. For instances that
12 support secure mode two interrupts must be specified, for non-secure and
15 - #iommu-cells: The number of cells needed to specify the stream id. This
17 - qcom,ncb: The total number of context banks in the IOMMU.
18 - clocks : List of clocks to be used during SMMU register access. See
19 Documentation/devicetree/bindings/clock/clock-bindings.txt
20 for information about the format. For each clock specified
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/Documentation/devicetree/bindings/spi/
Dicpdas-lp8841-spi-rtc.txt1 * ICP DAS LP-8841 SPI Controller for RTC
3 ICP DAS LP-8841 contains a DS-1302 RTC. RTC is connected to an IO
4 memory register, which acts as an SPI master device.
6 The device uses the standard MicroWire half-duplex transfer timing.
7 Master output is set on low clock and sensed by the RTC on the rising
8 edge. Master input is set by the RTC on the trailing edge and is sensed
9 by the master on low clock.
13 - #address-cells: should be 1
15 - #size-cells: should be 0
17 - compatible: should be "icpdas,lp8841-spi-rtc"
[all …]
Dnvidia,tegra114-spi.txt4 - compatible : For Tegra114, must contain "nvidia,tegra114-spi".
5 Otherwise, must contain '"nvidia,<chip>-spi", "nvidia,tegra114-spi"' where
7 - reg: Should contain SPI registers location and length.
8 - interrupts: Should contain SPI interrupts.
9 - clock-names : Must include the following entries:
10 - spi
11 - resets : Must contain an entry for each entry in reset-names.
13 - reset-names : Must include the following entries:
14 - spi
15 - dmas : Must contain an entry for each entry in clock-names.
[all …]
/Documentation/driver-api/soundwire/
Dsummary.rst10 SoundWire is a 2-pin multi-drop interface with data and clock line. It
15 commands over a single two-pin interface.
17 (2) Lower clock frequency, and hence lower power consumption, by use of DDR
20 (3) Clock scaling and optional multiple data lanes to give wide flexibility
23 (4) Device status monitoring, including interrupt-style alerts to the Master.
26 interfaces share the common Bus containing data and clock line. Each of the
35 Below figure shows an example of connectivity between a SoundWire Master and
38 +---------------+ +---------------+
39 | | Clock Signal | |
40 | Master |-------+-------------------------------| Slave |
[all …]
/Documentation/devicetree/bindings/ata/
Dcortina,gemini-sata-bridge.txt3 The Gemini SATA bridge in a SoC-internal PATA to SATA bridge that
8 - compatible: should be
9 "cortina,gemini-sata-bridge"
10 - reg: registers and size for the block
11 - resets: phandles to the reset lines for both SATA bridges
12 - reset-names: must be "sata0", "sata1"
13 - clocks: phandles to the compulsory peripheral clocks
14 - clock-names: must be "SATA0_PCLK", "SATA1_PCLK"
15 - syscon: a phandle to the global Gemini system controller
16 - cortina,gemini-ata-muxmode: tell the desired multiplexing mode for
[all …]
/Documentation/devicetree/bindings/dma/
Darm-pl08x.txt4 - compatible: "arm,pl080", "arm,primecell";
7 - arm,primecell-periphid: on the FTDMAC020 the primecell ID is not hard-coded
11 - reg: Address range of the PL08x registers
12 - interrupt: The PL08x interrupt number
13 - clocks: The clock running the IP core clock
14 - clock-names: Must contain "apb_pclk"
15 - lli-bus-interface-ahb1: if AHB master 1 is eligible for fetching LLIs
16 - lli-bus-interface-ahb2: if AHB master 2 is eligible for fetching LLIs
17 - mem-bus-interface-ahb1: if AHB master 1 is eligible for fetching memory contents
18 - mem-bus-interface-ahb2: if AHB master 2 is eligible for fetching memory contents
[all …]
/Documentation/devicetree/bindings/media/i2c/
Dmax2175.txt2 -----------------------------------------
4 The MAX2175 IC is an advanced analog/digital hybrid-radio receiver with
5 RF to Bits® front-end designed for software-defined radio solutions.
8 --------------------
9 - compatible: "maxim,max2175" for MAX2175 RF-to-bits tuner.
10 - clocks: clock specifier.
11 - port: child port node corresponding to the I2S output, in accordance with
13 Documentation/devicetree/bindings/media/video-interfaces.txt. The port
17 --------------------
18 - maxim,master : phandle to the master tuner if it is a slave. This
[all …]
/Documentation/devicetree/bindings/i3c/
Dcdns,i3c-master.txt1 Bindings for cadence I3C master block
5 --------------------
6 - compatible: shall be "cdns,i3c-master"
7 - clocks: shall reference the pclk and sysclk
8 - clock-names: shall contain "pclk" and "sysclk"
9 - interrupts: the interrupt line connected to this I3C master
10 - reg: I3C master registers
15 - #address-cells: shall be set to 1
16 - #size-cells: shall be set to 0
21 - i2c-scl-hz
[all …]
/Documentation/devicetree/bindings/sound/
Dsimple-card.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/sound/simple-card.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
14 frame-master:
15 description: Indicates dai-link frame master.
16 $ref: /schemas/types.yaml#/definitions/phandle-array
19 bitclock-master:
20 description: Indicates dai-link bit clock master
[all …]
Dmarvell,mmp-sspa.yaml1 # SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/marvell,mmp-sspa.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Lubomir Rintel <lkundrak@v3.sk>
14 pattern: "^audio-controller(@.*)?$"
17 const: marvell,mmp-sspa
21 - description: RX block
22 - description: TX block
29 - description: Clock for the Audio block
[all …]
Dmikroe,mikroe-proto.txt1 Mikroe-PROTO audio board
4 - compatible: "mikroe,mikroe-proto"
5 - dai-format: Must be "i2s".
6 - i2s-controller: The phandle of the I2S controller.
7 - audio-codec: The phandle of the WM8731 audio codec.
9 - model: The user-visible name of this sound complex.
10 - bitclock-master: Indicates dai-link bit clock master; for details see simple-card.txt (1).
11 - frame-master: Indicates dai-link frame master; for details see simple-card.txt (1).
13 (1) : There must be the same master for both bit and frame clocks.
17 compatible = "mikroe,mikroe-proto";
[all …]
Damlogic,aiu.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jerome Brunet <jbrunet@baylibre.com>
14 pattern: "^audio-controller@.*"
16 "#sound-dai-cells":
21 - enum:
22 - amlogic,aiu-gxbb
23 - amlogic,aiu-gxl
24 - amlogic,aiu-meson8
[all …]
/Documentation/i2c/
Dgpio-fault-injection.rst5 The GPIO based I2C bus master driver can be configured to provide fault
7 which is driven by the I2C bus master driver under test. The GPIO fault
9 master driver should handle gracefully.
12 'i2c-fault-injector' subdirectory in the Kernel debugfs filesystem, usually
15 injection. They will be described now along with their intended use-cases.
21 -----
26 because the bus master under test will not be able to clock. It should detect
31 -----
36 master under test should detect this condition and trigger a bus recovery (see
52 in a bus master driver, make sure you checked your hardware setup for such
[all …]
/Documentation/devicetree/bindings/pci/
Dqcom,pcie.txt3 - compatible:
7 - "qcom,pcie-ipq8064" for ipq8064
8 - "qcom,pcie-ipq8064-v2" for ipq8064 rev 2 or ipq8065
9 - "qcom,pcie-apq8064" for apq8064
10 - "qcom,pcie-apq8084" for apq8084
11 - "qcom,pcie-msm8996" for msm8996 or apq8096
12 - "qcom,pcie-ipq4019" for ipq4019
13 - "qcom,pcie-ipq8074" for ipq8074
14 - "qcom,pcie-qcs404" for qcs404
15 - "qcom,pcie-sdm845" for sdm845
[all …]
/Documentation/devicetree/bindings/display/rockchip/
Ddw_hdmi-rockchip.txt9 following device-specific properties.
14 - compatible: should be one of the following:
15 "rockchip,rk3228-dw-hdmi"
16 "rockchip,rk3288-dw-hdmi"
17 "rockchip,rk3328-dw-hdmi"
18 "rockchip,rk3399-dw-hdmi"
19 - reg: See dw_hdmi.txt.
20 - reg-io-width: See dw_hdmi.txt. Shall be 4.
21 - interrupts: HDMI interrupt number
22 - clocks: See dw_hdmi.txt.
[all …]
/Documentation/spi/
Dspi-summary.rst5 02-Feb-2012
8 ------------
12 standardization body. SPI uses a master/slave configuration.
14 The three signal wires hold a clock (SCK, often on the order of 10 MHz),
15 and parallel data lines with "Master Out, Slave In" (MOSI) or "Master In,
17 clocking modes through which data is exchanged; mode-0 and mode-3 are most
18 commonly used. Each clock cycle shifts data out and data in; the clock
26 other signals, often including an interrupt to the master.
32 - SPI may be used for request/response style device protocols, as with
35 - It may also be used to stream data in either direction (half duplex),
[all …]
/Documentation/devicetree/bindings/rtc/
Dmaxim-ds1302.txt1 * Maxim/Dallas Semiconductor DS-1302 RTC
5 The device uses the standard MicroWire half-duplex transfer timing.
6 Master output is set on low clock and sensed by the RTC on the rising
7 edge. Master input is set by the RTC on the trailing edge and is sensed
8 by the master on low clock.
12 - compatible : Should be "maxim,ds1302"
16 - reg : Should be address of the device chip select within
19 - spi-max-frequency : DS-1302 has 500 kHz if powered at 2.2V,
22 - spi-3wire : The device has a shared signal IN/OUT line.
24 - spi-lsb-first : DS-1302 requires least significant bit first
[all …]

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