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/linux/Documentation/devicetree/bindings/iio/adc/
H A Dadi,ad7606.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Michael Hennerich <michael.hennerich@analog.com>
14 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7605-4.pdf
15 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606_7606-6_7606-4.pdf
16 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7606B.pdf
17 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606c-16.pdf
18 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606c-18.pdf
19 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7607.pdf
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H A Dadi,ad7768-1.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/adi,ad7768-1.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices AD7768-1 ADC device driver
10 - Michael Hennerich <michael.hennerich@analog.com>
14 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7768-1.pdf
18 const: adi,ad7768-1
26 clock-names:
29 trigger-sources:
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/linux/Documentation/devicetree/bindings/display/bridge/
H A Dthine,thc63lvd1024.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jacopo Mondi <jacopo+renesas@jmondi.org>
11 - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
15 streams to parallel data outputs. The chip supports single/dual input/output
19 Single or dual operation mode, output data mapping and DDR output modes are
34 even-numbered pixels are received on port@0 and odd-numbered pixels on
37 When operating in single output mode all pixels are output from the first
45 description: First LVDS input port
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H A Dti,sn65dsi86.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Douglas Anderson <dianders@chromium.org>
23 enable-gpios:
27 suspend-gpios:
31 no-hpd:
37 vccio-supply:
40 vpll-supply:
43 vcca-supply:
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/linux/drivers/gpio/
H A Dgpio-sloppy-logic-analyzer.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Sloppy logic analyzer using GPIOs (to be run on an isolated CPU)
5 * Use the 'gpio-sloppy-logic-analyzer' script in the 'tools/gpio' folder for
7 * analyzer which can be affected by latencies and non-deterministic code
8 * paths. However, for e.g. remote development, it may be useful to get a first
11 * Copyright (C) Wolfram Sang <wsa@sang-engineering.com>
34 #define GPIO_LA_NAME "gpio-sloppy-logic-analyzer"
41 struct mutex blob_lock; /* serialize access to the blob (data) */
61 ret = gpiod_get_array_value(d->ndescs, d->desc, d->info, sptr); in gpio_la_get_array()
63 ret = -EINTR; in gpio_la_get_array()
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H A Dgpio-syscon.c1 // SPDX-License-Identifier: GPL-2.0-or-later
20 /* SYSCON driver is designed to use 32-bit wide registers */
25 * struct syscon_gpio_data - Configuration for the device.
27 * GPIO_SYSCON_FEAT_IN: GPIOs supports input,
28 * GPIO_SYSCON_FEAT_OUT: GPIOs supports output,
29 * GPIO_SYSCON_FEAT_DIR: GPIOs supports switch direction.
30 * @bit_count: Number of bits used as GPIOs.
31 * @dat_bit_offset: Offset (in bits) to the first GPIO bit.
32 * @dir_bit_offset: Optional offset (in bits) to the first bit to switch
50 const struct syscon_gpio_data *data; member
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H A Dgpio-davinci.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (c) 2006-2007 David Brownell
43 #define BINTEN 0x8 /* GPIO Interrupt Per-Bank Enable Register */
73 /*--------------------------------------------------------------------------*/
86 g = d->regs[bank]; in __davinci_direction()
87 spin_lock_irqsave(&d->lock, flags); in __davinci_direction()
88 temp = readl_relaxed(&g->dir); in __davinci_direction()
91 writel_relaxed(mask, value ? &g->set_data : &g->clr_data); in __davinci_direction()
95 writel_relaxed(temp, &g->dir); in __davinci_direction()
96 spin_unlock_irqrestore(&d->lock, flags); in __davinci_direction()
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H A Dgpio-ich.c1 // SPDX-License-Identifier: GPL-2.0+
3 * Intel ICH6-10, Series 5 and 6, Atom C2000 (Avoton/Rangeley) GPIO driver
19 * Each chunk of 32 GPIOs is manipulated via its own USE_SELx, IO_SELx, and
34 {0x00, 0x30, 0x40}, /* USE_SEL[1-3] offsets */
35 {0x04, 0x34, 0x44}, /* IO_SEL[1-3] offsets */
36 {0x0c, 0x38, 0x48}, /* LVL[1-3] offsets */
54 #define ICHX_WRITE(val, reg, base_res) outl(val, (reg) + (base_res)->start)
55 #define ICHX_READ(reg, base_res) inl((reg) + (base_res)->start)
91 struct ichx_desc *desc; /* Pointer to chipset-specific description */
97 static int modparam_gpiobase = -1; /* dynamic */
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/linux/Documentation/devicetree/bindings/mmc/
H A Darm,pl18x.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 - Ulf Hansson <ulf.hansson@linaro.org>
20 - $ref: /schemas/arm/primecell.yaml#
21 - $ref: mmc-controller.yaml#
29 - arm,pl180
30 - arm,pl181
31 - arm,pl18x
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/linux/Documentation/userspace-api/gpio/
H A Dsysfs.rst6 been moved to Documentation/ABI/obsolete/sysfs-gpio.
16 ----------------------
18 configure a sysfs user interface to GPIOs. This is different from the
26 may need to temporarily remove that protection, first importing a GPIO,
27 then changing its output state, then updating the code before re-enabling
32 userspace GPIO can be used to determine system configuration data that
38 Please read Documentation/driver-api/gpio/drivers-on-gpio.rst
44 --------------
47 - Control interfaces used to get userspace control over GPIOs;
49 - GPIOs themselves; and
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/linux/Documentation/firmware-guide/acpi/
H A Dgpio-properties.rst1 .. SPDX-License-Identifier: GPL-2.0
8 allows names to be given to GPIOs (and other things as well) returned
13 With _DSD we can now query GPIOs using a name instead of an integer
16 // Bluetooth device with reset and shutdown GPIOs
31 ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
34 Package () { "reset-gpios", Package () { ^BTH, 1, 1, 0 } },
35 Package () { "shutdown-gpios", Package () { ^BTH, 0, 0, 0 } },
52 If 1, the GPIO is marked as active-low.
55 active-low or active-high, the "active_low" argument can be used here.
56 Setting it to 1 marks the GPIO as active-low.
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/linux/Documentation/devicetree/bindings/media/i2c/
H A Dthine,thp7312.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Paul Elder <paul.elder@@ideasonboard.com>
17 MIPI CSI-2 and parallel interfaces. It can also output on either MIPI CSI-2
19 interleaved data streams with data types or multiple virtual channel
23 - $ref: /schemas/media/video-interface-devices.yaml#
36 thine,boot-mode:
43 0 is for the SPI/2-wire slave boot, 1 is for the SPI master boot (from
46 reset-gpios:
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/linux/drivers/pinctrl/renesas/
H A Dgpio.c1 // SPDX-License-Identifier: GPL-2.0
6 * Copyright (C) 2009 - 2012 Paul Mundt
40 return chip->pfc; in gpio_to_pfc()
47 int idx = sh_pfc_get_pin_index(chip->pfc, offset); in gpio_get_data_reg()
48 struct sh_pfc_gpio_pin *gpio_pin = &chip->pins[idx]; in gpio_get_data_reg()
50 *reg = &chip->regs[gpio_pin->dreg]; in gpio_get_data_reg()
51 *bit = gpio_pin->dbit; in gpio_get_data_reg()
57 phys_addr_t address = dreg->reg; in gpio_read_data_reg()
58 void __iomem *mem = address - chip->mem->phys + chip->mem->virt; in gpio_read_data_reg()
60 return sh_pfc_read_raw_reg(mem, dreg->reg_width); in gpio_read_data_reg()
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/linux/Documentation/driver-api/gpio/
H A Dconsumer.rst8 Guidelines for GPIOs consumers
13 obtain and use GPIOs are available by including the following file::
21 - Simple compile coverage with e.g. COMPILE_TEST - it does not matter that
25 - Truly optional GPIOLIB support - where the driver does not really make use
26 of the GPIOs on certain compile-time configurations for certain systems, but
27 will use it under other compile-time configurations. In this case the
35 All the functions that work with the descriptor-based GPIO interface are
42 Obtaining and Disposing GPIOs
45 With the descriptor-based interface, GPIOs are identified with an opaque,
46 non-forgeable handler that must be obtained through a call to one of the
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/linux/Documentation/devicetree/bindings/sound/
H A Dti,tlv320adcx140.yaml1 # SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: Texas Instruments TLV320ADCX140 Quad Channel Analog-to-Digital Converter
11 - Andrew Davis <afd@ti.com>
14 The TLV320ADCX140 are multichannel (4-ch analog recording or 8-ch digital
15 PDM microphones recording), high-performance audio, analog-to-digital
28 - ti,tlv320adc3140
29 - ti,tlv320adc5140
30 - ti,tlv320adc6140
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H A Dmt8186-mt6366-rt1019-rt5682s.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/mt8186-mt6366-rt1019-rt5682s.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jiaxin Yu <jiaxin.yu@mediatek.com>
16 - $ref: sound-card-common.yaml#
21 - mediatek,mt8186-mt6366-rt1019-rt5682s-sound
22 - mediatek,mt8186-mt6366-rt5682s-max98360-sound
23 - mediatek,mt8186-mt6366-rt5650-sound
25 audio-routing:
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/linux/Documentation/devicetree/bindings/display/
H A Dsolomon,ssd1307fb.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Maxime Ripard <mripard@kernel.org>
11 - Javier Martinez Canillas <javierm@redhat.com>
17 - enum:
18 - solomon,ssd1305fb-i2c
19 - solomon,ssd1306fb-i2c
20 - solomon,ssd1307fb-i2c
21 - solomon,ssd1309fb-i2c
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/linux/Documentation/devicetree/bindings/net/bluetooth/
H A Dti,bluetooth.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - David Lechner <david@lechnology.com>
32 - ti,cc2560
33 - ti,wl1271-st
34 - ti,wl1273-st
35 - ti,wl1281-st
36 - ti,wl1283-st
37 - ti,wl1285-st
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/linux/include/linux/gpio/
H A Dmachine.h1 /* SPDX-License-Identifier: GPL-2.0 */
22 * struct gpiod_lookup - lookup table
25 * so this will use the first match found!
29 * @idx: index of the GPIO in case several GPIOs share the same name
32 * gpiod_lookup is a lookup table for associating GPIOs to specific devices and
33 * functions using platform data.
50 * struct gpiod_hog - GPIO line hog table
85 * Use this macro if you need to have several GPIOs under the same con_id.
/linux/arch/arm64/boot/dts/renesas/
H A Dgray-hawk-single.dtsi1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
6 * Copyright (C) 2024-2025 Glider bv
11 * Because R-Car V4M has only 1 SSI, it cannot handle both Playback/Capture
28 #include <dt-bindings/gpio/gpio.h>
29 #include <dt-bindings/input/input.h>
30 #include <dt-bindings/leds/common.h>
31 #include <dt-bindings/media/video-interfaces.h>
35 compatible = "renesas,gray-hawk-single";
49 can_transceiver0: can-phy0 {
51 #phy-cells = <0>;
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H A Dwhite-hawk-cpu-common.dtsi1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
9 #include <dt-bindings/gpio/gpio.h>
10 #include <dt-bindings/input/input.h>
11 #include <dt-bindings/leds/common.h>
27 stdout-path = "serial0:921600n8";
30 sn65dsi86_refclk: clk-x6 {
31 compatible = "fixed-clock";
32 #clock-cells = <0>;
33 clock-frequency = <38400000>;
37 compatible = "gpio-keys";
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/linux/drivers/tty/serial/
H A Dsa1100.c1 // SPDX-License-Identifier: GPL-2.0+
15 #include <linux/platform_data/sa11x0-serial.h>
29 /* We've been assigned a range on the "Low-density serial ports" major */
45 #define UART_GET_UTCR0(sport) __raw_readl((sport)->port.membase + UTCR0)
46 #define UART_GET_UTCR1(sport) __raw_readl((sport)->port.membase + UTCR1)
47 #define UART_GET_UTCR2(sport) __raw_readl((sport)->port.membase + UTCR2)
48 #define UART_GET_UTCR3(sport) __raw_readl((sport)->port.membase + UTCR3)
49 #define UART_GET_UTSR0(sport) __raw_readl((sport)->port.membase + UTSR0)
50 #define UART_GET_UTSR1(sport) __raw_readl((sport)->port.membase + UTSR1)
51 #define UART_GET_CHAR(sport) __raw_readl((sport)->port.membase + UTDR)
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/linux/drivers/mfd/
H A Darizona-spi.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * arizona-spi.c -- Arizona SPI bus interface
21 #include <uapi/linux/input-event-codes.h>
32 { "reset-gpios", &reset_gpios, 1, },
33 { "wlf,ldoena-gpios", &ldoena_gpios, 1 },
38 * The ACPI resources for the device only describe external GPIO-s. They do
39 * not provide mappings for the GPIO-s coming from the Arizona codec itself.
42 { "arizona", 2, "wlf,spkvdd-ena", 0, GPIO_ACTIVE_HIGH },
43 { "arizona", 4, "wlf,micd-pol", 0, GPIO_ACTIVE_LOW },
58 /* Add mappings for the 2 ACPI declared GPIOs used for reset and ldo-ena */ in arizona_spi_acpi_windows_probe()
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/linux/include/linux/mfd/
H A Dtps65010.h18 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
34 * ----------------------------------------------------------------------------
36 * ----------------------------------------------------------------------------
109 * ----------------------------------------------------------------------------
111 * ----------------------------------------------------------------------------
127 * ----------------------------------------------------------------------------
129 * ----------------------------------------------------------------------------
133 * 0 mA -- DON'T DRAW (might supply power instead)
134 * 100 mA -- usb unit load (slowest charge rate)
135 * 500 mA -- usb high power (fast battery charge)
[all …]
/linux/Documentation/devicetree/bindings/pinctrl/
H A Drenesas,r9a09g077-pinctrl.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pinctrl/renesas,r9a09g077-pinctrl.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
14 Pin multiplexing and GPIO configuration are performed on a per-pin basis.
22 - renesas,r9a09g077-pinctrl # RZ/T2H
23 - renesas,r9a09g087-pinctrl # RZ/N2H
28 - description: Non-safety I/O Port base
29 - description: Safety I/O Port safety region base
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