| /Linux-v6.1/Documentation/ABI/testing/ |
| D | sysfs-bus-rpmsg | 1 What: /sys/bus/rpmsg/devices/.../name
4 Contact: Ohad Ben-Cohen <ohad@wizery.com>
6 Every rpmsg device is a communication channel with a remote
13 What: /sys/bus/rpmsg/devices/.../src
16 Contact: Ohad Ben-Cohen <ohad@wizery.com>
18 Every rpmsg device is a communication channel with a remote
20 and remote ("destination") rpmsg address. When an entity
31 What: /sys/bus/rpmsg/devices/.../dst
34 Contact: Ohad Ben-Cohen <ohad@wizery.com>
36 Every rpmsg device is a communication channel with a remote
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| /Linux-v6.1/Documentation/staging/ |
| D | rpmsg.rst | 2 Remote Processor Messaging (rpmsg) Framework
7 This document describes the rpmsg bus and how to write rpmsg drivers.
14 Modern SoCs typically employ heterogeneous remote processor devices in
17 flavor of real-time OS.
19 OMAP4, for example, has dual Cortex-A9, dual Cortex-M3 and a C64x+ DSP.
20 Typically, the dual cortex-A9 is running Linux in a SMP configuration,
24 Typically AMP remote processors employ dedicated DSP codecs and multimedia
25 hardware accelerators, and therefore are often used to offload CPU-intensive
28 These remote processors could also be used to control latency-sensitive
32 Users of those remote processors can either be userland apps (e.g. multimedia
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| /Linux-v6.1/Documentation/devicetree/bindings/media/i2c/ |
| D | imi,rdacm2x-gmsl.yaml | 1 # SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
4 ---
5 $id: http://devicetree.org/schemas/media/i2c/imi,rdacm2x-gmsl.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Jacopo Mondi <jacopo+renesas@jmondi.org>
12 - Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
13 - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
14 - Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
16 description: -|
17 The IMI D&D RDACM20 and RDACM21 are GMSL-compatible camera designed for
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| D | maxim,max9286.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Jacopo Mondi <jacopo+renesas@jmondi.org>
12 - Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
13 - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
14 - Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
18 Serial Links (GMSL) and outputs them on a CSI-2 D-PHY port using up to 4 data
24 serializer will output it on a local I2C bus. In the other direction all I2C
25 traffic received over GMSL by the MAX9286 is output on the local I2C bus.
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| /Linux-v6.1/Documentation/devicetree/bindings/display/ |
| D | mipi-dsi-bus.txt | 4 The MIPI Display Serial Interface specifies a serial bus and a protocol for
6 define the syntax used to represent a DSI bus in a device tree.
8 This document describes DSI bus-specific properties only or defines existing
9 standard properties in the context of the DSI bus.
11 Each DSI host provides a DSI bus. The DSI host controller's node contains a
12 set of properties that characterize the bus. Child nodes describe individual
13 peripherals on that bus.
21 In addition to the standard properties and those defined by the parent bus of
25 - #address-cells: The number of cells required to represent an address on the
26 bus. DSI peripherals are addressed using a 2-bit virtual channel number, so
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| D | allwinner,sun8i-r40-tcon-top.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/display/allwinner,sun8i-r40-tcon-top.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Chen-Yu Tsai <wens@csie.org>
11 - Maxime Ripard <mripard@kernel.org>
22 / [0] TCON-LCD0
25 \ / [1] TCON-LCD1 - LCD1/LVDS1
26 TCON-TOP
27 / \ [2] TCON-TV0 [0] - TVE0/RGB
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| /Linux-v6.1/Documentation/devicetree/bindings/media/ |
| D | ti,da850-vpif.txt | 2 ----------------------
12 - compatible: must be "ti,da850-vpif"
13 - reg: physical base address and length of the registers set for the device;
14 - interrupts: should contain IRQ line for the VPIF
18 VPIF has a 16-bit parallel bus input, supporting 2 8-bit channels or a
19 single 16-bit channel. It should contain one or two port child nodes
23 Documentation/devicetree/bindings/media/video-interfaces.txt.
25 Example using 2 8-bit input channels, one of which is connected to an
26 I2C-connected TVP5147 decoder:
29 compatible = "ti,da850-vpif";
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| D | microchip,csi2dc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Eugen Hristev <eugen.hristev@microchip.com>
13 CSI2DC - Camera Serial Interface 2 Demux Controller
16 IDI interface or from a parallel bus interface.
30 32-bit IDI interface or a parallel interface.
44 const: microchip,sama7g5-csi2dc
53 clock-names:
63 - const: pclk
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| D | atmel-isi.txt | 2 ----------------------------------
5 - compatible: must be "atmel,at91sam9g45-isi" or "microchip,sam9x60-isi".
6 - reg: physical base address and length of the registers set for the device.
7 - interrupts: should contain IRQ line for the ISI.
8 - clocks: list of clock specifiers, corresponding to entries in the clock-names
9 property; please refer to clock-bindings.txt.
10 - clock-names: required elements: "isi_clk".
11 - pinctrl-names, pinctrl-0: please refer to pinctrl-bindings.txt.
13 ISI supports a single port node with parallel bus. It shall contain one
15 defined in Documentation/devicetree/bindings/media/video-interfaces.txt.
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| D | microchip,xisc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Eugen Hristev <eugen.hristev@microchip.com>
18 The source can be either a demuxer from a CSI2 type of bus, or a simple direct bridge to a
25 const: microchip,sama7g5-isc
36 clock-names:
38 - const: hclock
40 '#clock-cells':
43 clock-output-names:
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| /Linux-v6.1/include/media/ |
| D | v4l2-fwnode.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
8 * Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd.
22 #include <media/v4l2-mediabus.h>
29 * struct v4l2_fwnode_endpoint - the endpoint data structure
31 * @bus_type: bus type
32 * @bus: bus configuration data structure
33 * @bus.parallel: embedded &struct v4l2_mbus_config_parallel.
34 * Used if the bus is parallel.
35 * @bus.mipi_csi1: embedded &struct v4l2_mbus_config_mipi_csi1.
36 * Used if the bus is MIPI Alliance's Camera Serial
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| /Linux-v6.1/arch/arm/boot/dts/ |
| D | hip04.dtsi | 1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2013-2014 HiSilicon Ltd.
6 * Copyright (C) 2013-2014 Linaro Ltd.
12 /* memory bus is 64-bit */
13 #address-cells = <2>;
14 #size-cells = <2>;
21 compatible = "hisilicon,hip04-bootwrapper";
22 boot-method = <0x10c00000 0x10000>, <0xe0000100 0x1000>;
26 #address-cells = <1>;
27 #size-cells = <0>;
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| D | r8a7790-lager.dts | 1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2013-2014 Renesas Solutions Corp.
7 * Copyright (C) 2015-2016 Renesas Electronics Corporation
11 * SSI-AK4643
38 /dts-v1/;
40 #include <dt-bindings/gpio/gpio.h>
41 #include <dt-bindings/input/input.h>
63 stdout-path = "serial0:115200n8";
77 #address-cells = <1>;
78 #size-cells = <1>;
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| D | imx6q-gw54xx.dts | 1 // SPDX-License-Identifier: GPL-2.0-or-later
6 /dts-v1/;
8 #include "imx6qdl-gw54xx.dtsi"
9 #include <dt-bindings/media/tda1997x.h>
13 compatible = "gw,imx6q-gw54xx", "gw,ventana", "fsl,imx6q";
15 sound-digital {
16 compatible = "simple-audio-card";
17 simple-audio-card,name = "tda1997x-audio";
18 simple-audio-card,format = "i2s";
19 simple-audio-card,bitclock-master = <&sound_codec>;
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| D | tegra30-asus-lvds-display.dtsi | 1 // SPDX-License-Identifier: GPL-2.0
13 remote-endpoint = <&bridge_input>;
14 bus-width = <24>;
21 display-panel {
22 power-supply = <&vdd_pnl>;
23 ddc-i2c-bus = <&lcd_ddc>;
28 remote-endpoint = <&bridge_output>;
34 lvds-encoder {
35 compatible = "ti,sn75lvds83", "lvds-encoder";
37 powerdown-gpios = <&gpio TEGRA_GPIO(N, 6) GPIO_ACTIVE_LOW>;
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| D | imx6q.dtsi | 1 // SPDX-License-Identifier: GPL-2.0
5 #include <dt-bindings/interrupt-controller/irq.h>
6 #include "imx6q-pinfunc.h"
16 #address-cells = <1>;
17 #size-cells = <0>;
20 compatible = "arm,cortex-a9";
23 next-level-cache = <&L2>;
24 operating-points = <
32 fsl,soc-operating-points = <
33 /* ARM kHz SOC-PU uV */
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| /Linux-v6.1/drivers/rpmsg/ |
| D | rpmsg_core.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * remote processor messaging bus
8 * Ohad Ben-Cohen <ohad@wizery.com>
27 * rpmsg_create_channel() - create a new rpmsg channel
39 if (!rpdev->ops || !rpdev->ops->create_channel) { in rpmsg_create_channel()
40 dev_err(&rpdev->dev, "no create_channel ops found\n"); in rpmsg_create_channel()
44 return rpdev->ops->create_channel(rpdev, chinfo); in rpmsg_create_channel()
49 * rpmsg_release_channel() - release a rpmsg channel
60 return -EINVAL; in rpmsg_release_channel()
61 if (!rpdev->ops || !rpdev->ops->release_channel) { in rpmsg_release_channel()
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| /Linux-v6.1/Documentation/devicetree/bindings/i2c/ |
| D | i2c-demux-pinctrl.txt | 1 Pinctrl-based I2C Bus DeMux
3 This binding describes an I2C bus demultiplexer that uses pin multiplexing to
10 +-------------------------------+
12 | | +-----+ +-----+
13 | +------------+ | | dev | | dev |
14 | |I2C IP Core1|--\ | +-----+ +-----+
15 | +------------+ \-------+ | | |
16 | |Pinctrl|--|------+--------+
17 | +------------+ +-------+ |
18 | |I2C IP Core2|--/ |
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| D | google,cros-ec-i2c-tunnel.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $id: http://devicetree.org/schemas/i2c/google,cros-ec-i2c-tunnel.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: I2C bus that tunnels through the ChromeOS EC (cros-ec)
11 - Doug Anderson <dianders@chromium.org>
12 - Benson Leung <bleung@chromium.org>
20 The node for this device should be under a cros-ec node like
21 google,cros-ec-spi or google,cros-ec-i2c.
24 - $ref: i2c-controller.yaml#
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| /Linux-v6.1/drivers/vlynq/ |
| D | vlynq.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
72 printk(KERN_DEBUG "VLYNQ local=%p remote=%p\n", in vlynq_dump_regs()
73 dev->local, dev->remote); in vlynq_dump_regs()
76 i + 1, ((u32 *)dev->local)[i]); in vlynq_dump_regs()
77 printk(KERN_DEBUG "VLYNQ: remote %d: %08x\n", in vlynq_dump_regs()
78 i + 1, ((u32 *)dev->remote)[i]); in vlynq_dump_regs()
101 if (readl(&dev->local->status) & VLYNQ_STATUS_LINK) in vlynq_linked()
111 writel(readl(&dev->local->control) | VLYNQ_CTRL_RESET, in vlynq_reset()
112 &dev->local->control); in vlynq_reset()
118 writel(readl(&dev->local->control) & ~VLYNQ_CTRL_RESET, in vlynq_reset()
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| /Linux-v6.1/Documentation/devicetree/bindings/arm/ |
| D | arm,coresight-static-funnel.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/arm/arm,coresight-static-funnel.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Arm CoreSight Static Trace Bus Funnel
10 - Mathieu Poirier <mathieu.poirier@linaro.org>
11 - Mike Leach <mike.leach@linaro.org>
12 - Leo Yan <leo.yan@linaro.org>
13 - Suzuki K Poulose <suzuki.poulose@arm.com>
23 The Coresight static funnel merges 2-8 trace sources into a single trace
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| D | arm,coresight-static-replicator.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/arm/arm,coresight-static-replicator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Arm CoreSight Static Trace Bus Replicator
10 - Mathieu Poirier <mathieu.poirier@linaro.org>
11 - Mike Leach <mike.leach@linaro.org>
12 - Leo Yan <leo.yan@linaro.org>
13 - Suzuki K Poulose <suzuki.poulose@arm.com>
28 const: arm,coresight-static-replicator
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| D | arm,coresight-dynamic-funnel.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/arm/arm,coresight-dynamic-funnel.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Arm CoreSight Programmable Trace Bus Funnel
10 - Mathieu Poirier <mathieu.poirier@linaro.org>
11 - Mike Leach <mike.leach@linaro.org>
12 - Leo Yan <leo.yan@linaro.org>
13 - Suzuki K Poulose <suzuki.poulose@arm.com>
23 The Coresight funnel merges 2-8 trace sources into a single trace
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| /Linux-v6.1/arch/arm64/boot/dts/nvidia/ |
| D | tegra194-p3509-0000.dtsi | 1 // SPDX-License-Identifier: GPL-2.0
3 #include <dt-bindings/input/linux-event-codes.h>
4 #include <dt-bindings/input/gpio-keys.h>
7 bus@0 {
11 dma-controller@2930000 {
15 interrupt-controller@2a40000 {
23 #address-cells = <1>;
24 #size-cells = <0>;
30 remote-endpoint = <&admaif0_ep>;
38 remote-endpoint = <&admaif1_ep>;
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| D | tegra194-p2972-0000.dts | 1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
4 #include <dt-bindings/input/linux-event-codes.h>
5 #include <dt-bindings/input/gpio-keys.h>
7 #include "tegra194-p2888.dtsi"
11 compatible = "nvidia,p2972-0000", "nvidia,tegra194";
13 bus@0 {
17 dma-controller@2930000 {
21 interrupt-controller@2a40000 {
29 #address-cells = <1>;
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