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/Linux-v5.15/Documentation/devicetree/bindings/pinctrl/
Dmarvell,kirkwood-pinctrl.txt3 Please refer to marvell,mvebu-pinctrl.txt in this directory for common binding
7 - compatible: "marvell,88f6180-pinctrl",
8 "marvell,88f6190-pinctrl", "marvell,88f6192-pinctrl",
9 "marvell,88f6281-pinctrl", "marvell,88f6282-pinctrl",
10 "marvell,98dx4122-pinctrl", "marvell,98dx1135-pinctrl"
11 - reg: register specifier of MPP registers
14 It also support the 88f6281-based variant in the 98dx412x Bobcat SoCs.
24 mpp0 0 gpio, nand(io2), spi(cs)
25 mpp1 1 gpo, nand(io3), spi(mosi)
26 mpp2 2 gpo, nand(io4), spi(sck)
[all …]
Dpinctrl-mcp23s08.txt2 8-/16-bit I/O expander with serial interface (I2C/SPI)
5 - compatible : Should be
6 - "mcp,mcp23s08" (DEPRECATED) for 8 GPIO SPI version
7 - "mcp,mcp23s17" (DEPRECATED) for 16 GPIO SPI version
8 - "mcp,mcp23008" (DEPRECATED) for 8 GPIO I2C version or
9 - "mcp,mcp23017" (DEPRECATED) for 16 GPIO I2C version of the chip
11 - "microchip,mcp23s08" for 8 GPIO SPI version
12 - "microchip,mcp23s17" for 16 GPIO SPI version
13 - "microchip,mcp23s18" for 16 GPIO SPI version
14 - "microchip,mcp23008" for 8 GPIO I2C version or
[all …]
/Linux-v5.15/drivers/gpio/
Dgpio-pisosr.c2 * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
18 #include <linux/gpio/consumer.h>
19 #include <linux/gpio/driver.h>
22 #include <linux/spi/spi.h>
27 * struct pisosr_gpio - GPIO driver data
28 * @chip: GPIO controller chip
29 * @spi: SPI device pointer
32 * @load_gpio: GPIO pin used to load input into device
37 struct spi_device *spi; member
44 static int pisosr_gpio_refresh(struct pisosr_gpio *gpio) in pisosr_gpio_refresh() argument
[all …]
Dgpio-max3191x.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * gpio-max3191x.c - GPIO driver for Maxim MAX3191x industrial serializer
7 * The MAX3191x makes 8 digital 24V inputs available via SPI.
8 * Multiple chips can be daisy-chained, the spec does not impose
11 * Either of two modes is selectable: In 8-bit mode, only the state
13 * In 16-bit mode, an additional status byte is clocked out with
17 * readout of non-faulting chips in the same daisy-chain.
21 * daisy-chain.
23 * If the chips are hardwired to 8-bit mode ("modesel" pulled high),
24 * gpio-pisosr.c can be used alternatively to this driver.
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/Linux-v5.15/drivers/pinctrl/
Dpinctrl-xway.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/drivers/pinctrl/pinmux-xway.c
4 * based on linux/drivers/pinctrl/pinmux-pxa910.c
21 #include "pinctrl-lantiq.h"
110 /* --------- DEPRECATED: xr9 related code --------- */
111 /* ---------- use xrx100/xrx200 instead ---------- */
116 MFP_XWAY(GPIO0, GPIO, EXIN, NONE, TDM),
117 MFP_XWAY(GPIO1, GPIO, EXIN, NONE, NONE),
118 MFP_XWAY(GPIO2, GPIO, CGU, EXIN, GPHY),
119 MFP_XWAY(GPIO3, GPIO, CGU, NONE, PCI),
[all …]
Dpinctrl-falcon.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/drivers/pinctrl/pinmux-falcon.c
4 * based on linux/drivers/pinctrl/pinmux-pxa910.c
10 #include <linux/gpio/driver.h>
22 #include "pinctrl-lantiq.h"
107 MFP_FALCON(GPIO0, RST, GPIO, NONE, NONE),
108 MFP_FALCON(GPIO1, GPIO, GPIO, NONE, NONE),
109 MFP_FALCON(GPIO2, GPIO, GPIO, NONE, NONE),
110 MFP_FALCON(GPIO3, GPIO, GPIO, NONE, NONE),
111 MFP_FALCON(GPIO4, NTR, GPIO, NONE, NONE),
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/Linux-v5.15/Documentation/devicetree/bindings/spi/
Dspi-gpio.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/spi/spi-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: SPI-GPIO devicetree bindings
10 - Rob Herring <robh@kernel.org>
13 This represents a group of 3-n GPIO lines used for bit-banged SPI on
14 dedicated GPIO lines.
17 - $ref: "/schemas/spi/spi-controller.yaml#"
21 const: spi-gpio
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Dbrcm,bcm2835-aux-spi.txt3 The BCM2835 contains two forms of SPI master controller, one known simply as
4 SPI0, and the other known as the "Universal SPI Master"; part of the
8 - compatible: Should be "brcm,bcm2835-aux-spi".
9 - reg: Should contain register location and length for the spi block
10 - interrupts: Should contain shared interrupt of the aux block
11 - clocks: The clock feeding the SPI controller - needs to
15 - cs-gpios: the cs-gpios (native cs is NOT supported)
16 see also spi-bus.txt
21 compatible = "brcm,bcm2835-aux-spi";
25 #address-cells = <1>;
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Dspi-controller.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/spi/spi-controller.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: SPI Controller Generic Binding
10 - Mark Brown <broonie@kernel.org>
13 SPI busses can be described with a node for the SPI controller device
14 and a set of child nodes for each SPI slave on the bus. The system SPI
15 controller may be described for use in SPI master mode or in SPI slave mode,
20 pattern: "^spi(@.*|-[0-9a-f])*$"
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/Linux-v5.15/Documentation/devicetree/bindings/display/panel/
Dsamsung,lms380kf01.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
12 The panel must obey the rules for a SPI slave device as specified in
13 spi/spi-controller.yaml
16 - Linus Walleij <linus.walleij@linaro.org>
19 - $ref: panel-common.yaml#
34 reset-gpios: true
36 vci-supply:
40 vccio-supply:
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Dsamsung,lms397kf04.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
13 - Linus Walleij <linus.walleij@linaro.org>
16 - $ref: panel-common.yaml#
24 reset-gpios: true
26 vci-supply:
30 vccio-supply:
36 spi-cpha: true
38 spi-cpol: true
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/Linux-v5.15/drivers/staging/wfx/Documentation/devicetree/bindings/net/wireless/
Dsilabs,wfx.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
7 $schema: http://devicetree.org/meta-schemas/core.yaml#
12 - Jérôme Pouiller <jerome.pouiller@silabs.com>
15 The WFxxx chip series can be connected via SPI or via SDIO.
24 In addition, it is recommended to declare a mmc-pwrseq on SDIO host above
25 WFx. Without it, you may encounter issues with warm boot. The mmc-pwrseq
26 should be compatible with mmc-pwrseq-simple. Please consult
27 Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.yaml for more
30 For SPI':'
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/Linux-v5.15/drivers/spi/
Dspi-gpio.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * SPI master driver using generic bitbanged GPIO
11 #include <linux/gpio/consumer.h>
15 #include <linux/spi/spi.h>
16 #include <linux/spi/spi_bitbang.h>
17 #include <linux/spi/spi_gpio.h>
21 * This bitbanging SPI master driver should help make systems usable
22 * when a native hardware SPI engine is not available, perhaps because
26 * platform_device->driver_data ... points to spi_gpio
28 * spi->controller_state ... reserved for bitbang framework code
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/Linux-v5.15/Documentation/devicetree/bindings/gpio/
Dgpio-pisosr.txt1 Generic Parallel-in/Serial-out Shift Register GPIO Driver
3 This binding describes generic parallel-in/serial-out shift register
5 SN74165 serial-out shift registers and the SN65HVS88x series of
9 - compatible : Should be "pisosr-gpio".
10 - gpio-controller : Marks the device node as a GPIO controller.
11 - #gpio-cells : Should be two. For consumer use see gpio.txt.
14 - ngpios : Number of used GPIO lines (0..n-1), default is 8.
15 - load-gpios : GPIO pin specifier attached to load enable, this
19 For other required and optional properties of SPI slave
20 nodes please refer to ../spi/spi-bus.txt.
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/Linux-v5.15/arch/arm/boot/dts/
Dast2600-facebook-netbmc-common.dtsi1 // SPDX-License-Identifier: GPL-2.0+
4 #include "aspeed-g6.dtsi"
5 #include <dt-bindings/gpio/aspeed-gpio.h>
24 * GPIO-based SPI Master is required to access SPI TPM, because
25 * full-duplex SPI transactions are not supported by ASPEED SPI
28 spi_gpio: spi-gpio {
30 compatible = "spi-gpio";
31 #address-cells = <1>;
32 #size-cells = <0>;
34 gpio-sck = <&gpio0 ASPEED_GPIO(X, 3) GPIO_ACTIVE_HIGH>;
[all …]
Daspeed-bmc-ibm-rainier.dts1 // SPDX-License-Identifier: GPL-2.0-or-later
3 /dts-v1/;
5 #include "aspeed-g6.dtsi"
6 #include <dt-bindings/gpio/aspeed-gpio.h>
7 #include <dt-bindings/i2c/i2c.h>
8 #include <dt-bindings/leds/leds-pca955x.h>
12 compatible = "ibm,rainier-bmc", "aspeed,ast2600";
84 stdout-path = &uart5;
93 reserved-memory {
94 #address-cells = <1>;
[all …]
/Linux-v5.15/Documentation/driver-api/gpio/
Ddrivers-on-gpio.rst2 Subsystem drivers using GPIO
5 Note that standard kernel drivers exist for common GPIO tasks and will provide
6 the right in-kernel and userspace APIs/ABIs for the job, and that these
10 - leds-gpio: drivers/leds/leds-gpio.c will handle LEDs connected to GPIO
13 - ledtrig-gpio: drivers/leds/trigger/ledtrig-gpio.c will provide a LED trigger,
14 i.e. a LED will turn on/off in response to a GPIO line going high or low
15 (and that LED may in turn use the leds-gpio as per above).
17 - gpio-keys: drivers/input/keyboard/gpio_keys.c is used when your GPIO line
20 - gpio-keys-polled: drivers/input/keyboard/gpio_keys_polled.c is used when your
21 GPIO line cannot generate interrupts, so it needs to be periodically polled
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/Linux-v5.15/Documentation/devicetree/bindings/net/dsa/
Dvitesse,vsc73xx.txt9 Vitesse VSC7385 SparX-G5 5+1-port Integrated Gigabit Ethernet Switch
10 Vitesse VSC7388 SparX-G8 8-port Integrated Gigabit Ethernet Switch
11 Vitesse VSC7395 SparX-G5e 5+1-port Integrated Gigabit Ethernet Switch
12 Vitesse VSC7398 SparX-G8e 8-port Integrated Gigabit Ethernet Switch
16 If SPI interface is used, the device tree node is an SPI device so it must
17 reside inside a SPI bus device tree node, see spi/spi-bus.txt
19 When the chip is connected to a parallel memory bus and work in memory-mapped
25 - compatible: must be exactly one of:
30 - gpio-controller: indicates that this switch is also a GPIO controller,
31 see gpio/gpio.txt
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/Linux-v5.15/drivers/video/fbdev/omap2/omapfb/displays/
Dpanel-lgphilips-lb035q02.c1 // SPDX-License-Identifier: GPL-2.0-only
12 #include <linux/spi/spi.h>
14 #include <linux/gpio.h>
43 struct spi_device *spi; member
49 /* used for non-DT boot, to be removed */
57 static int lb035q02_write_reg(struct spi_device *spi, u8 reg, u16 val) in lb035q02_write_reg() argument
85 return spi_sync(spi, &msg); in lb035q02_write_reg()
88 static void init_lb035q02_panel(struct spi_device *spi) in init_lb035q02_panel() argument
91 lb035q02_write_reg(spi, 0x01, 0x6300); in init_lb035q02_panel()
92 lb035q02_write_reg(spi, 0x02, 0x0200); in init_lb035q02_panel()
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/Linux-v5.15/drivers/net/can/spi/
Dmcp251x.c1 // SPDX-License-Identifier: GPL-2.0-only
2 /* CAN bus driver for Microchip 251x/25625 CAN Controller with SPI Interface
17 * - Sascha Hauer, Marc Kleine-Budde, Pengutronix
18 * - Simon Kallweit, intefo AG
31 #include <linux/gpio.h>
32 #include <linux/gpio/driver.h>
43 #include <linux/spi/spi.h>
46 /* SPI interface instruction set */
197 /* Buffer size required for the largest SPI transfer (i.e., reading a
231 struct spi_device *spi; member
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/Linux-v5.15/Documentation/devicetree/bindings/net/wireless/
Dti,wl1251.txt3 The wl1251 chip can be connected via SPI or via SDIO. This
4 document describes the binding for the SPI connected chip.
7 - compatible : Should be "ti,wl1251"
8 - reg : Chip select address of device
9 - spi-max-frequency : Maximum SPI clocking speed of device in Hz
10 - interrupts : Should contain interrupt line
11 - vio-supply : phandle to regulator providing VIO
14 - ti,wl1251-has-eeprom : boolean, the wl1251 has an eeprom connected, which
16 - ti,power-gpio : GPIO connected to chip's PMEN pin if operated in
17 SPI mode
[all …]
/Linux-v5.15/Documentation/devicetree/bindings/bus/
Dmoxtet.txt1 Turris Mox module status and configuration bus (over SPI)
4 - compatible : Should be "cznic,moxtet"
5 - #address-cells : Has to be 1
6 - #size-cells : Has to be 0
7 - spi-cpol : Required inverted clock polarity
8 - spi-cpha : Required shifted clock phase
9 - interrupts : Must contain reference to the shared interrupt line
10 - interrupt-controller : Required
11 - #interrupt-cells : Has to be 1
13 For other required and optional properties of SPI slave nodes please refer to
[all …]
/Linux-v5.15/drivers/fpga/
Dxilinx-spi.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Xilinx Spartan6 and 7 Series Slave Serial SPI Driver
9 * Manage Xilinx FPGA firmware that is loaded over SPI using
15 #include <linux/fpga/fpga-mgr.h>
16 #include <linux/gpio/consumer.h>
20 #include <linux/spi/spi.h>
24 struct spi_device *spi; member
32 struct xilinx_spi_conf *conf = mgr->priv; in get_done_gpio()
35 ret = gpiod_get_value(conf->done); in get_done_gpio()
38 dev_err(&mgr->dev, "Error reading DONE (%d)\n", ret); in get_done_gpio()
[all …]
/Linux-v5.15/Documentation/devicetree/bindings/misc/
Dolpc,xo1.75-ec.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
4 ---
5 $id: http://devicetree.org/schemas/misc/olpc,xo1.75-ec.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: OLPC XO-1.75 Embedded Controller bindings
11 This binding describes the Embedded Controller acting as a SPI bus master
12 on a OLPC XO-1.75 laptop computer.
14 The embedded controller requires the SPI controller driver to signal
17 "ready-gpios" property of the SSP binding as documented in:
18 <Documentation/devicetree/bindings/spi/marvell,mmp2-ssp.yaml>.
[all …]
/Linux-v5.15/drivers/iio/resolver/
Dad2s1200.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Copyright (c) 2018-2018 David Veenstra <davidjulianveenstra@gmail.com>
7 * Copyright (c) 2010-2010 Analog Devices Inc.
13 #include <linux/gpio/consumer.h>
17 #include <linux/spi/spi.h>
32 * struct ad2s1200_state - driver instance specific data.
33 * @lock: protects both the GPIO pins and the rx buffer.
34 * @sdev: spi device.
35 * @sample: GPIO pin SAMPLE.
36 * @rdvel: GPIO pin RDVEL.
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