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/openbmc/linux/Documentation/devicetree/bindings/display/panel/
H A Dtpo,tpg110.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Linus Walleij <linus.walleij@linaro.org>
11 - Thierry Reding <thierry.reding@gmail.com>
17 and other properties, and has a control interface over 3WIRE
18 SPI. By talking to the TPG110 over SPI, the strapped properties
20 self-describing.
22 +--------+
23 SPI -> | TPO | -> physical display
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H A Dleadtek,ltk035c5444t.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Leadtek ltk035c5444t 3.5" (640x480 pixels) 24-bit IPS LCD panel
10 - Paul Cercueil <paul@crapouillou.net>
11 - Christophe Branchereau <cbranchereau@gmail.com>
14 - $ref: panel-common.yaml#
15 - $ref: /schemas/spi/spi-peripheral-props.yaml#
23 power-supply: true
25 reset-gpios: true
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H A Dkingdisplay,kd035g6-54nt.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/display/panel/kingdisplay,kd035g6-54nt.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: King Display KD035G6-54NT 3.5" (320x240 pixels) 24-bit TFT LCD panel
10 - Paul Cercueil <paul@crapouillou.net>
13 - $ref: panel-common.yaml#
14 - $ref: /schemas/spi/spi-peripheral-props.yaml#
18 const: kingdisplay,kd035g6-54nt
22 power-supply: true
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H A Dilitek,ili9341.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Ilitek-9341 Display Panel
10 - Dillon Min <dillon.minfei@gmail.com>
13 Ilitek ILI9341 TFT panel driver with SPI control bus
18 - $ref: panel-common.yaml#
19 - $ref: /schemas/spi/spi-peripheral-props.yaml#
24 - enum:
25 - adafruit,yx240qv29
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H A Dsamsung,s6e63m0.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jonathan Bakker <xc-racer2@live.ca>
13 - $ref: panel-common.yaml#
14 - $ref: /schemas/leds/backlight/common.yaml#
15 - $ref: /schemas/spi/spi-peripheral-props.yaml#
22 reset-gpios: true
24 default-brightness: true
25 max-brightness: true
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H A Dpanel-mipi-dbi-spi.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/display/panel/panel-mipi-dbi-spi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: MIPI DBI SPI Panel
10 - Noralf Trønnes <noralf@tronnes.org>
14 in SPI mode.
19 for type 1 which has full frame memory. There are 3 interface types in the
23 - Power:
24 - Vdd: Power supply for display module
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/openbmc/linux/Documentation/devicetree/bindings/iio/temperature/
H A Dmaxim,max31865.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Navin Sankar Velliangiri <navin@linumiz.com>
22 maxim,3-wire:
25 enables 3-wire RTD connection. Else 2-wire or 4-wire RTD connection.
28 spi-cpha: true
31 - compatible
32 - reg
33 - spi-cpha
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/openbmc/linux/drivers/iio/common/st_sensors/
H A Dst_sensors_spi.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * STMicroelectronics sensors spi library driver
5 * Copyright 2012-2013 STMicroelectronics Inc.
15 #include <linux/spi/spi.h>
33 * st_sensors_is_spi_3_wire() - check if SPI 3-wire mode has been selected
34 * @spi: spi device reference.
36 * Return: true if SPI 3-wire mode is selected, false otherwise.
38 static bool st_sensors_is_spi_3_wire(struct spi_device *spi) in st_sensors_is_spi_3_wire() argument
41 struct device *dev = &spi->dev; in st_sensors_is_spi_3_wire()
43 if (device_property_read_bool(dev, "spi-3wire")) in st_sensors_is_spi_3_wire()
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/openbmc/linux/Documentation/devicetree/bindings/spi/
H A 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.
13 - #address-cells: should be 1
15 - #size-cells: should be 0
17 - compatible: should be "icpdas,lp8841-spi-rtc"
19 - reg: should provide IO memory address
21 Requirements to SPI slave nodes:
23 - There can be only one slave device.
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H A Dspi-controller.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/spi/spi-controller.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: SPI Controller Common Properties
10 - Mark Brown <broonie@kernel.org>
13 SPI busses can be described with a node for the SPI controller device
14 and a set of child nodes for each SPI slave on the bus. The system SPI
15 controller may be described for use in SPI master mode or in SPI slave mode,
20 pattern: "^spi(@.*|-([0-9]|[1-9][0-9]+))?$"
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/openbmc/u-boot/doc/device-tree-bindings/spi/
H A Dspi-bus.txt1 SPI (Serial Peripheral Interface) busses
3 SPI busses can be described with a node for the SPI master device
4 and a set of child nodes for each SPI slave on the bus. For this
5 discussion, it is assumed that the system's SPI controller is in
6 SPI master mode. This binding does not describe SPI controllers
9 The SPI master node requires the following properties:
10 - #address-cells - number of cells required to define a chip select
11 address on the SPI bus.
12 - #size-cells - should be zero.
13 - compatible - name of SPI bus controller following generic names
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/openbmc/linux/Documentation/devicetree/bindings/rtc/
H A Dmaxim-ds1302.txt1 * Maxim/Dallas Semiconductor DS-1302 RTC
5 The device uses the standard MicroWire half-duplex transfer timing.
12 - compatible : Should be "maxim,ds1302"
14 Required SPI properties:
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
27 - spi-cs-high: DS-1302 has active high chip select line. This is
32 spi@901c {
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/openbmc/linux/Documentation/devicetree/bindings/display/
H A Dmulti-inno,mi0283qt.txt1 Multi-Inno MI0283QT display panel
4 - compatible: "multi-inno,mi0283qt".
6 The node for this driver must be a child node of a SPI controller, hence
7 all mandatory properties described in ../spi/spi-bus.txt must be specified.
10 - dc-gpios: D/C pin. The presence/absence of this GPIO determines
11 the panel interface mode (IM[3:0] pins):
12 - present: IM=x110 4-wire 8-bit data serial interface
13 - absent: IM=x101 3-wire 9-bit data serial interface
14 - reset-gpios: Reset pin
15 - power-supply: A regulator node for the supply voltage.
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/openbmc/linux/Documentation/devicetree/bindings/iio/addac/
H A Dadi,ad74115.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Cosmin Tanislav <cosmin.tanislav@analog.com>
13 The AD74115H is a single-channel software configurable input/output
17 chip solution with an SPI interface. The device features a 16-bit ADC and a
18 14-bit DAC.
25 - adi,ad74115h
30 spi-max-frequency:
33 spi-cpol: true
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/openbmc/linux/Documentation/devicetree/bindings/clock/
H A Dti,lmk04832.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Liam Beguin <liambeguin@gmail.com>
21 - ti,lmk04832
26 '#address-cells':
29 '#size-cells':
32 '#clock-cells':
35 spi-max-frequency:
40 - description: PLL2 reference clock.
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/openbmc/linux/drivers/iio/temperature/
H A Dmax31865.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * max31865.c - Maxim MAX31865 RTD-to-Digital Converter sensor driver
20 #include <linux/spi/spi.h>
54 struct spi_device *spi; member
64 return spi_write_then_read(data->spi, &reg, 1, data->buf, read_size); in max31865_read()
69 return spi_write(data->spi, data->buf, len); in max31865_write()
81 cfg = data->buf[0]; in enable_bias()
83 data->buf[0] = MAX31865_CFG_REG | MAX31865_RD_WR_BIT; in enable_bias()
84 data->buf[1] = cfg | MAX31865_CFG_VBIAS; in enable_bias()
98 cfg = data->buf[0]; in disable_bias()
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/openbmc/linux/Documentation/spi/
H A Dspi-lm70llp.rst2 spi_lm70llp : LM70-LLP parport-to-SPI adapter
15 -----------
17 temperature sensor evaluation board to the kernel's SPI core subsystem.
19 This is a SPI master controller driver. It can be used in conjunction with
20 (layered under) the LM70 logical driver (a "SPI protocol driver").
22 into a SPI bus with a single device, which will be driven by the generic
27 --------------------
28 The schematic for this particular board (the LM70EVAL-LLP) is
39 D0 2 - -
40 D1 3 --> V+ 5
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/openbmc/linux/Documentation/devicetree/bindings/
H A Dtrivial-devices.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/trivial-devices.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Trivial I2C and SPI devices
10 - Ro
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/openbmc/linux/Documentation/devicetree/bindings/iio/accel/
H A Dadi,adxl313.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices ADXL312, ADXL313, and ADXL314 3-Axis Digital Accelerometers
10 - Lucas Stankus <lucas.p.stankus@gmail.com>
13 Analog Devices ADXL312, ADXL313, and ADXL314 3-Axis Digital Accelerometer that
14 support both I2C & SPI interfaces.
22 - adi,adxl312
23 - adi,adxl313
24 - adi,adxl314
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H A Dbosch,bma255.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Linus Walleij <linus.walleij@linaro.org>
11 - Stephan Gerhold <stephan@gerhold.net>
14 3 axis accelerometers with varying range and I2C or SPI
15 4-wire interface.
20 # bmc150-accel driver in Linux
21 - bosch,bma222
22 - bosch,bma222e
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/openbmc/linux/tools/spi/
H A Dspidev_test.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * SPI testing utility (using spidev driver)
8 * Cross-compile with cross-gcc -I/path/to/cross-kernel/include
24 #include <linux/spi/spidev.h>
71 while (length-- > 0) { in hex_dump()
91 * Unescape - process hexadecimal escape character
92 * converts shell input "\x23" -> 0x23
152 pabort("can't send spi message"); in transfer()
175 printf("Usage: %s [-2348CDFHILMNORSZbdilopsv]\n", prog); in print_usage()
177 " -D --device device to use (default /dev/spidev1.1)\n" in print_usage()
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/openbmc/linux/arch/arm/boot/dts/st/
H A Dste-nomadik-nhk15.dts1 // SPDX-License-Identifier: GPL-2.0
6 /dts-v1/;
7 #include <dt-bindings/interrupt-controller/irq.h>
8 #include <dt-bindings/gpio/gpio.h>
9 #include "ste-nomadik-stn8815.dtsi"
13 compatible = "st,nomadik-nhk-15";
22 stmpe-i2c0 = &stmpe0;
23 stmpe-i2c1 = &stmpe1;
71 disable-sxtalo;
72 disable-mxtalo;
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/openbmc/linux/Documentation/devicetree/bindings/powerpc/fsl/
H A Dmpc5200.txt2 ----------------------------
4 (c) 2006-2009 Secret Lab Technologies Ltd
8 ------------------
9 For mpc5200 on-chip devices, the format for each compatible value is
10 <chip>-<device>[-<mode>]. The OS should be able to match a device driver
21 "fsl,mpc5200-<device>".
29 compatible = "fsl,mpc5200b-<device>","fsl,mpc5200-<device>";
34 ie. ethernet on mpc5200: compatible = "fsl,mpc5200-fec";
35 ethernet on mpc5200b: compatible = "fsl,mpc5200b-fec", "fsl,mpc5200-fec";
39 "fsl,mpc5200-psc-i2s", not "fsl,mpc5200-i2s". This convention is chosen to
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/openbmc/u-boot/drivers/spi/
H A Dlpc32xx_ssp.c1 // SPDX-License-Identifier: GPL-2.0+
3 * LPC32xx SSP interface (SPI mode)
6 * Written-by: Albert ARIBAUD <albert.aribaud@3adev.fr>
13 #include <spi.h>
38 /* lpc32xx spi slave */
59 pr_err("3-wire mode not supported"); in spi_setup_slave()
79 lslave->regs = (struct ssp_regs *)SSP0_BASE; in spi_setup_slave()
82 * 8 bit frame, SPI fmt, 500kbps -> clock divider is 26. in spi_setup_slave()
86 writel(0x7, &lslave->regs->cr0); /* 8-bit chunks, SPI, 1 clk/bit */ in spi_setup_slave()
87 writel(26, &lslave->regs->cpsr); /* SSP clock = HCLK/26 = 500kbps */ in spi_setup_slave()
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/openbmc/openbmc/meta-raspberrypi/docs/
H A Dextra-build-config.md6 <http://www.yoctoproject.org/docs/latest/ref-manual/ref-manual.html>
32 See: <https://www.raspberrypi.com/documentation/computers/config_txt.html#memory-options>
36 …erland`. Be aware that `userland` has not support for 64-bit arch. If you disable `vc4` on a 64-bi…
50 See: <https://www.raspberrypi.com/documentation/computers/config_txt.html#licence-key-and-codec-opt…
85 …b`. The "mmc" is required to load an image from the SD card, following the u-boot specification. S…
108 See: <https://www.raspberrypi.com/documentation/computers/config_txt.html#overclocking-options>
115 mode is defaulted to NTSC using a 4:3 aspect ratio. Check the config.txt for a
125 See: <https://www.raspberrypi.com/documentation/computers/configuration.html#hdmi-configuration>
140 This will enable the firmware to fall back to off-line compositing of Dispmanx
141 elements. Normally the compositing is done on-line, during scanout, but cannot
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