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/Linux-v6.6/drivers/gpio/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 # GPIO infrastructure and drivers
7 bool "GPIO Support"
9 This enables GPIO support through the generic GPIO library.
11 one or more of the GPIO drivers below.
17 config GPIOLIB_FASTPATH_LIMIT
29 config OF_GPIO
34 config GPIO_ACPI
38 config GPIOLIB_IRQCHIP
42 config OF_GPIO_MM_GPIOCHIP
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Dgpio-regmap.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * regmap based generic GPIO driver
17 #include <linux/gpio/driver.h>
18 #include <linux/gpio/regmap.h>
33 int (*reg_mask_xlate)(struct gpio_regmap *gpio, unsigned int base,
48 static int gpio_regmap_simple_xlate(struct gpio_regmap *gpio, in gpio_regmap_simple_xlate() argument
52 unsigned int line = offset % gpio->ngpio_per_reg; in gpio_regmap_simple_xlate()
53 unsigned int stride = offset / gpio->ngpio_per_reg; in gpio_regmap_simple_xlate()
55 *reg = base + stride * gpio->reg_stride; in gpio_regmap_simple_xlate()
63 struct gpio_regmap *gpio = gpiochip_get_data(chip); in gpio_regmap_get() local
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Dgpio-sl28cpld.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * sl28cpld GPIO driver
9 #include <linux/gpio/driver.h>
10 #include <linux/gpio/regmap.h>
18 /* GPIO flavor */
25 /* input-only flavor */
28 /* output-only flavor */
50 struct gpio_regmap_config *config) in sl28cpld_gpio_irq_init() argument
54 struct device *dev = &pdev->dev; in sl28cpld_gpio_irq_init()
57 if (!device_property_read_bool(dev, "interrupt-controller")) in sl28cpld_gpio_irq_init()
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Dgpio-idio-16.c1 // SPDX-License-Identifier: GPL-2.0
3 * GPIO library for the ACCES IDIO-16 family
10 #include <linux/gpio/regmap.h>
15 #include "gpio-idio-16.h"
41 const unsigned int prev_mask = data->irq_mask; in idio_16_handle_mask_sync()
50 data->irq_mask = mask_buf; in idio_16_handle_mask_sync()
54 err = regmap_write(data->map, IDIO_16_CLEAR_INTERRUPT, 0x00); in idio_16_handle_mask_sync()
57 return regmap_read(data->map, IDIO_16_ENABLE_IRQ, &val); in idio_16_handle_mask_sync()
62 return regmap_write(data->map, IDIO_16_DISABLE_IRQ, 0x00); in idio_16_handle_mask_sync()
67 static int idio_16_reg_mask_xlate(struct gpio_regmap *const gpio, const unsigned int base, in idio_16_reg_mask_xlate() argument
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Dgpio-gpio-mm.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * GPIO driver for the Diamond Systems GPIO-MM
6 * This driver supports the following Diamond Systems devices: GPIO-MM and
7 * GPIO-MM-12.
19 #include "gpio-i8255.h"
29 MODULE_PARM_DESC(base, "Diamond Systems GPIO-MM base addresses");
65 struct i8255_regmap_config config = {}; in gpiomm_probe() local
69 dev_err(dev, "Unable to lock port addresses (0x%X-0x%X)\n", in gpiomm_probe()
71 return -EBUSY; in gpiomm_probe()
76 return -ENOMEM; in gpiomm_probe()
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Dgpio-i8255.c1 // SPDX-License-Identifier: GPL-2.0
10 #include <linux/gpio/regmap.h>
14 #include "gpio-i8255.h"
60 /* Initialize all GPIO to output 0 */ in i8255_ppi_init()
70 static int i8255_reg_mask_xlate(struct gpio_regmap *gpio, unsigned int base, in i8255_reg_mask_xlate() argument
90 return -EINVAL; in i8255_reg_mask_xlate()
95 * devm_i8255_regmap_register - Register an i8255 GPIO controller
96 * @dev: device that is registering this i8255 GPIO device
97 * @config: configuration for i8255_regmap_config
99 * Registers an Intel 8255 Programmable Peripheral Interface GPIO controller.
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/Linux-v6.6/drivers/pinctrl/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
11 config GENERIC_PINCTRL_GROUPS
14 config PINMUX
17 config GENERIC_PINMUX_FUNCTIONS
21 config PINCONF
24 config GENERIC_PINCONF
28 config DEBUG_PINCTRL
34 config PINCTRL_AMD
35 bool "AMD GPIO pin control"
44 The driver for memory mapped GPIO functionality on AMD platforms
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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
12 #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-v6.6/drivers/pinctrl/bcm/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
6 config PINCTRL_BCM281XX
18 framework. GPIO is provided by a separate GPIO driver.
20 config PINCTRL_BCM2835
21 tristate "Broadcom BCM2835 GPIO (with PINCONF) driver"
30 Say Y here to enable the Broadcom BCM2835 GPIO driver.
32 config PINCTRL_BCM4908
44 If compiled as module it will be called pinctrl-bcm4908.
46 config PINCTRL_BCM63XX
55 config PINCTRL_BCM6318
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/Linux-v6.6/drivers/pinctrl/intel/
DKconfig1 # SPDX-License-Identifier: GPL-2.0
6 config PINCTRL_BAYTRAIL
7 bool "Intel Baytrail GPIO pin control"
10 driver for memory mapped GPIO functionality on Intel Baytrail
13 so only a small amount is available for gpio use.
17 config PINCTRL_CHERRYVIEW
18 tristate "Intel Cherryview/Braswell pinctrl and GPIO driver"
24 config PINCTRL_LYNXPOINT
25 tristate "Intel Lynxpoint pinctrl and GPIO driver"
32 config PINCTRL_INTEL
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/Linux-v6.6/Documentation/admin-guide/gpio/
Dgpio-sim.rst1 .. SPDX-License-Identifier: GPL-2.0-or-later
3 Configfs GPIO Simulator
6 The configfs GPIO Simulator (gpio-sim) provides a way to create simulated GPIO
8 using the standard GPIO character device interface as well as manipulated
12 ------------------------
14 The gpio-sim module registers a configfs subsystem called ``'gpio-sim'``. For
21 **Group:** ``/config/gpio-sim``
23 This is the top directory of the gpio-sim configfs tree.
25 **Group:** ``/config/gpio-sim/gpio-device``
27 **Attribute:** ``/config/gpio-sim/gpio-device/dev_name``
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/Linux-v6.6/arch/arm/boot/dts/st/
Dste-hrefv60plus.dtsi1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright 2012 ST-Ericsson AB
6 #include "ste-href-ab8500.dtsi"
7 #include "ste-href.dtsi"
10 model = "ST-Ericsson HREF (v60+) platform with Device Tree";
11 compatible = "st-ericsson,hrefv60+", "st-ericsson,u8500";
13 thermal-zones {
14 chassis-thermal {
16 polling-delay = <20000>;
18 polling-delay-passive = <2000>;
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Dste-ux500-samsung-gavini.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * Devicetree for the Samsung Galaxy Beam GT-I8530 also known as Gavini.
6 /dts-v1/;
7 #include "ste-db8500.dtsi"
8 #include "ste-ab8500.dtsi"
9 #include "ste-dbx5x0-pinctrl.dtsi"
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/leds/common.h>
12 #include <dt-bindings/input/input.h>
13 #include <dt-bindings/interrupt-controller/irq.h>
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Dste-ux500-samsung-janice.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * Devicetree for the Samsung Galaxy S Advance GT-I9070 also known as Janice.
6 /dts-v1/;
7 #include "ste-db8500.dtsi"
8 #include "ste-ab8500.dtsi"
9 #include "ste-dbx5x0-pinctrl.dtsi"
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/leds/common.h>
12 #include <dt-bindings/input/input.h>
13 #include <dt-bindings/interrupt-controller/irq.h>
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Dste-ux500-samsung-codina.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * Devicetree for the Samsung Galaxy Ace 2 GT-I8160 also known as Codina.
11 * The Samsung tree further talks about GT-I8160P and GT-I8160chn (China).
12 * The GT-I8160 plain is known as the "europe" variant.
13 * The GT-I8160P is the CDMA version and it appears to not use the ST
15 * The GT-I8160chn appears to be the same as the europe variant.
17 * There is also the Codina-TMO, Samsung SGH-T599, which has its own device
21 /dts-v1/;
22 #include "ste-db8500.dtsi"
23 #include "ste-ab8500.dtsi"
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Dste-ux500-samsung-kyle.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * Devicetree for the Samsung Galaxy Amp SGH-I407 also known as Kyle.
10 /dts-v1/;
11 #include "ste-db8500.dtsi"
12 #include "ste-ab8505.dtsi"
13 #include "ste-dbx5x0-pinctrl.dtsi"
14 #include <dt-bindings/gpio/gpio.h>
15 #include <dt-bindings/leds/common.h>
16 #include <dt-bindings/input/input.h>
17 #include <dt-bindings/interrupt-controller/irq.h>
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Dste-ux500-samsung-codina-tmo.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * Devicetree for the Samsung Galaxy Exhibit SGH-T599 also known as Codina-TMO,
4 * the "TMO" shall be read "T-Mobile" as this phone was produced exlusively
5 * for T-Mobile in the United States.
8 * - No CPU speed cap, full ~1GHz rate
9 * - Different power management IC, AB8505
10 * - As AB8505 has a micro USB phy, no TI TSU6111
11 * - Different power routing such as the removal of the external LDO for the
13 * - Using a regulator for the key backlight LED
14 * - Using the Samsung S6D27A1 panel by default
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Dste-ux500-samsung-skomer.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * Devicetree for the Samsung XCover 2 GT-S7710 also known as Skomer.
6 /dts-v1/;
7 #include "ste-db8500.dtsi"
8 #include "ste-ab8505.dtsi"
9 #include "ste-dbx5x0-pinctrl.dtsi"
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/leds/common.h>
12 #include <dt-bindings/input/input.h>
13 #include <dt-bindings/interrupt-controller/irq.h>
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/Linux-v6.6/tools/gpio/
Dgpio-utils.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * GPIO tools - helpers library for the GPIO tools
17 #include <linux/gpio.h>
18 #include "gpio-utils.h"
20 #define CONSUMER "gpio-utils"
23 * DOC: Operation of gpio
27 * ioctl, including request and release for lines of gpio, read/write
28 * the value of gpio. If the user want to do lots of read and write of
29 * lines of gpio, user should use this type of api.
32 * following api will request gpio lines, do the operation and then
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Dgpio-event-mon.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * gpio-event-mon - monitor GPIO line events from userspace
8 * gpio-event-mon -n <device-name> -o <offset>
25 #include <linux/gpio.h>
26 #include "gpio-utils.h"
31 struct gpio_v2_line_config *config, in monitor_device() argument
42 return -ENOMEM; in monitor_device()
45 if (cfd == -1) { in monitor_device()
46 ret = -errno; in monitor_device()
51 ret = gpiotools_request_line(device_name, lines, num_lines, config, in monitor_device()
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/Linux-v6.6/drivers/pinctrl/mvebu/
Dpinctrl-dove.c1 // SPDX-License-Identifier: GPL-2.0-or-later
20 #include "pinctrl-mvebu.h"
23 #define INT_REGS_MASK ~(SZ_1M - 1)
44 /* Global Config regmap registers */
64 unsigned pid, unsigned long *config) in dove_pmu_mpp_ctrl_get() argument
68 unsigned long pmu = readl(data->base + PMU_MPP_GENERAL_CTRL); in dove_pmu_mpp_ctrl_get()
72 return mvebu_mmio_mpp_ctrl_get(data, pid, config); in dove_pmu_mpp_ctrl_get()
75 *config = (func >> shift) & MVEBU_MPP_MASK; in dove_pmu_mpp_ctrl_get()
76 *config |= CONFIG_PMU; in dove_pmu_mpp_ctrl_get()
82 unsigned pid, unsigned long config) in dove_pmu_mpp_ctrl_set() argument
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/Linux-v6.6/drivers/pinctrl/mediatek/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
5 config EINT_MTK
13 config PINCTRL_MTK
21 config PINCTRL_MTK_V2
24 config PINCTRL_MTK_MTMIPS
30 config PINCTRL_MTK_MOORE
40 config PINCTRL_MTK_PARIS
50 config PINCTRL_MT7620
57 config PINCTRL_MT7621
64 config PINCTRL_MT76X8
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/Linux-v6.6/arch/arm/mach-s3c/
Dgpio-samsung.c1 // SPDX-License-Identifier: GPL-2.0
3 // Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
11 // Samsung - GPIOlib support
16 #include <linux/gpio.h>
31 #include "regs-gpio.h"
32 #include "gpio-samsung.h"
35 #include "gpio-core.h"
36 #include "gpio-cfg.h"
37 #include "gpio-cfg-helpers.h"
43 void __iomem *reg = chip->base + 0x08; in samsung_gpio_setpull_updown()
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/Linux-v6.6/drivers/regulator/
Dgpio-regulator.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * gpio-regulator.c
14 * Roger Quadros <ext-roger.quadros@nokia.com>
17 * non-controllable regulators, as well as for allowing testing on
28 #include <linux/regulator/gpio-regulator.h>
29 #include <linux/gpio/consumer.h>
50 for (ptr = 0; ptr < data->nr_states; ptr++) in gpio_regulator_get_value()
51 if (data->states[ptr].gpios == data->state) in gpio_regulator_get_value()
52 return data->states[ptr].value; in gpio_regulator_get_value()
54 return -EINVAL; in gpio_regulator_get_value()
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/Linux-v6.6/drivers/gpu/drm/amd/display/dc/gpio/
Dgpio_service.c2 * Copyright 2012-15 Advanced Micro Devices, Inc.
27 * Pre-requisites: headers required by header of this unit
43 * Post-requisites: headers required by this unit
68 if (!dal_hw_translate_init(&service->translate, dce_version, in dal_gpio_service_create()
74 if (!dal_hw_factory_init(&service->factory, dce_version, in dal_gpio_service_create()
83 service->ctx = ctx; in dal_gpio_service_create()
87 service->factory.number_of_pins[index_of_id]; in dal_gpio_service_create()
91 service->busyness[index_of_id] = in dal_gpio_service_create()
95 if (!service->busyness[index_of_id]) { in dal_gpio_service_create()
101 service->busyness[index_of_id][i] = 0; in dal_gpio_service_create()
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