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/Linux-v6.1/drivers/tty/serial/
Dserial_mctrl_gpio.c1 // SPDX-License-Identifier: GPL-2.0+
22 int irq[UART_GPIO_MAX];
23 unsigned int mctrl_prev;
29 unsigned int mctrl;
40 static bool mctrl_gpio_flags_is_dir_out(unsigned int idx) in mctrl_gpio_flags_is_dir_out()
46 * mctrl_gpio_set - set gpios according to mctrl state
47 * @gpios: gpios to set
50 * Set the gpios according to the mctrl state.
52 void mctrl_gpio_set(struct mctrl_gpios *gpios, unsigned int mctrl) in mctrl_gpio_set() argument
57 unsigned int count = 0; in mctrl_gpio_set()
[all …]
Dserial_mctrl_gpio.h1 /* SPDX-License-Identifier: GPL-2.0+ */
29 * Opaque descriptor for modem lines controlled by GPIOs
36 * Set state of the modem control output lines via GPIOs.
38 void mctrl_gpio_set(struct mctrl_gpios *gpios, unsigned int mctrl);
41 * Get state of the modem control input lines from GPIOs.
44 unsigned int mctrl_gpio_get(struct mctrl_gpios *gpios, unsigned int *mctrl);
47 * Get state of the modem control output lines from GPIOs.
50 unsigned int
51 mctrl_gpio_get_outputs(struct mctrl_gpios *gpios, unsigned int *mctrl);
56 struct gpio_desc *mctrl_gpio_to_gpiod(struct mctrl_gpios *gpios,
[all …]
/Linux-v6.1/sound/soc/
Dsoc-jack.c1 // SPDX-License-Identifier: GPL-2.0+
3 // soc-jack.c -- ALSA SoC jack handling
21 * snd_soc_jack_report - Report the current status for a jack
34 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask) in snd_soc_jack_report()
38 unsigned int sync = 0; in snd_soc_jack_report()
44 dapm = &jack->card->dapm; in snd_soc_jack_report()
46 mutex_lock(&jack->mutex); in snd_soc_jack_report()
48 jack->status &= ~mask; in snd_soc_jack_report()
49 jack->status |= status & mask; in snd_soc_jack_report()
53 list_for_each_entry(pin, &jack->pins, list) { in snd_soc_jack_report()
[all …]
/Linux-v6.1/drivers/watchdog/
Dmena21_wdt.c1 // SPDX-License-Identifier: GPL-2.0+
34 struct gpio_desc *gpios[NUM_GPIOS]; member
42 static unsigned int a21_wdt_get_bootstatus(struct a21_wdt_drv *drv) in a21_wdt_get_bootstatus()
44 int reset = 0; in a21_wdt_get_bootstatus()
46 reset |= gpiod_get_value(drv->gpios[GPIO_WD_RST0]) ? (1 << 0) : 0; in a21_wdt_get_bootstatus()
47 reset |= gpiod_get_value(drv->gpios[GPIO_WD_RST1]) ? (1 << 1) : 0; in a21_wdt_get_bootstatus()
48 reset |= gpiod_get_value(drv->gpios[GPIO_WD_RST2]) ? (1 << 2) : 0; in a21_wdt_get_bootstatus()
53 static int a21_wdt_start(struct watchdog_device *wdt) in a21_wdt_start()
57 gpiod_set_value(drv->gpios[GPIO_WD_ENAB], 1); in a21_wdt_start()
62 static int a21_wdt_stop(struct watchdog_device *wdt) in a21_wdt_stop()
[all …]
/Linux-v6.1/sound/soc/codecs/
Dwm1250-ev1.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Driver for the 1250-EV1 audio I/O module
15 #include <sound/soc-dapm.h>
16 #include <sound/wm1250-ev1.h>
27 struct gpio gpios[WM1250_EV1_NUM_GPIOS]; member
30 static int wm1250_ev1_set_bias_level(struct snd_soc_component *component, in wm1250_ev1_set_bias_level()
33 struct wm1250_priv *wm1250 = dev_get_drvdata(component->dev); in wm1250_ev1_set_bias_level()
34 int ena; in wm1250_ev1_set_bias_level()
37 ena = wm1250->gpios[WM1250_EV1_GPIO_CLK_ENA].gpio; in wm1250_ev1_set_bias_level()
39 ena = -1; in wm1250_ev1_set_bias_level()
[all …]
/Linux-v6.1/include/linux/
Dof_gpio.h1 /* SPDX-License-Identifier: GPL-2.0+ */
5 * Copyright (c) 2007-2008 MontaVista Software, Inc.
21 * This is Linux-specific flags. By default controllers' and Linux' mapping
23 * Linux-specific in their .xlate callback. Though, 1:1 mapping is recommended.
53 extern int of_get_named_gpio_flags(const struct device_node *np,
54 const char *list_name, int index, enum of_gpio_flags *flags);
56 extern int of_mm_gpiochip_add_data(struct device_node *np,
59 static inline int of_mm_gpiochip_add(struct device_node *np, in of_mm_gpiochip_add()
71 static inline int of_get_named_gpio_flags(const struct device_node *np, in of_get_named_gpio_flags()
72 const char *list_name, int index, enum of_gpio_flags *flags) in of_get_named_gpio_flags()
[all …]
/Linux-v6.1/drivers/pinctrl/qcom/
Dpinctrl-qdf2xxx.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * device. The driver which controls this device is pinctrl-msm.c. Each
8 * with pinctrl-msm.c. This means that all TLMM drivers are pin control
11 * This pin control driver is intended to be used only an ACPI-enabled
14 * a GPIO-only driver. The alternative is to duplicate the GPIO code of
15 * pinctrl-msm.c into another driver.
23 #include "pinctrl-msm.h"
31 static int qdf2xxx_pinctrl_probe(struct platform_device *pdev) in qdf2xxx_pinctrl_probe()
37 unsigned int i; in qdf2xxx_pinctrl_probe()
39 unsigned int avail_gpios; /* The number of GPIOs we support */ in qdf2xxx_pinctrl_probe()
[all …]
/Linux-v6.1/Documentation/driver-api/gpio/
Dconsumer.rst6 it describes the new descriptor-based interface. For a description of the
7 deprecated integer-based GPIO interface please refer to legacy.rst.
10 Guidelines for GPIOs consumers
15 obtain and use GPIOs are available by including the following file::
23 - Simple compile coverage with e.g. COMPILE_TEST - it does not matter that
27 - Truly optional GPIOLIB support - where the driver does not really make use
28 of the GPIOs on certain compile-time configurations for certain systems, but
29 will use it under other compile-time configurations. In this case the
33 All the functions that work with the descriptor-based GPIO interface are
40 Obtaining and Disposing GPIOs
[all …]
Dlegacy.rst13 A "General Purpose Input/Output" (GPIO) is a flexible software-controlled
18 which GPIOs. Drivers can be written generically, so that board setup code
21 System-on-Chip (SOC) processors heavily rely on GPIOs. In some cases, every
22 non-dedicated pin can be configured as a GPIO; and most chips have at least
24 provide GPIOs; multifunction chips like power managers, and audio codecs
27 Most PC southbridges have a few dozen GPIO-capable pins (with only the BIOS
30 The exact capabilities of GPIOs vary between systems. Common options:
32 - Output values are writable (high=1, low=0). Some chips also have
34 value might be driven ... supporting "wire-OR" and similar schemes
37 - Input values are likewise readable (1, 0). Some chips support readback
[all …]
/Linux-v6.1/drivers/net/mdio/
Dmdio-mux-gpio.c1 // SPDX-License-Identifier: GPL-2.0
8 #include <linux/mdio-mux.h>
18 struct gpio_descs *gpios; member
22 static int mdio_mux_gpio_switch_fn(int current_child, int desired_child, in mdio_mux_gpio_switch_fn()
33 gpiod_set_array_value_cansleep(s->gpios->ndescs, s->gpios->desc, in mdio_mux_gpio_switch_fn()
34 s->gpios->info, values); in mdio_mux_gpio_switch_fn()
39 static int mdio_mux_gpio_probe(struct platform_device *pdev) in mdio_mux_gpio_probe()
42 struct gpio_descs *gpios; in mdio_mux_gpio_probe() local
43 int r; in mdio_mux_gpio_probe()
45 gpios = devm_gpiod_get_array(&pdev->dev, NULL, GPIOD_OUT_LOW); in mdio_mux_gpio_probe()
[all …]
/Linux-v6.1/drivers/gpu/drm/panel/
Dpanel-ronbo-rb070d30.c1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2018-2019, Bridge Systems BV
4 * Copyright (C) 2018-2019, Bootlin
7 * This file based on panel-ilitek-ili9881c.c
16 #include <linux/media-bus-format.h>
37 } gpios; member
45 static int rb070d30_panel_prepare(struct drm_panel *panel) in rb070d30_panel_prepare()
48 int ret; in rb070d30_panel_prepare()
50 ret = regulator_enable(ctx->supply); in rb070d30_panel_prepare()
52 dev_err(&ctx->dsi->dev, "Failed to enable supply: %d\n", ret); in rb070d30_panel_prepare()
[all …]
/Linux-v6.1/drivers/hwmon/
Dgpio-fan.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * gpio-fan.c - Hwmon driver for fans connected to GPIO lines.
25 int rpm;
26 int ctrl_val;
34 struct mutex lock; /* lock GPIOs operations. */
35 int num_gpios;
36 struct gpio_desc **gpios; member
37 int num_speed;
39 int speed_index;
40 int resume_speed;
[all …]
/Linux-v6.1/drivers/hsi/clients/
Dnokia-modem.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * nokia-modem.c
18 static unsigned int pm = 1;
19 module_param(pm, int, 0400);
30 int nokia_modem_rst_ind_irq;
32 struct nokia_modem_gpio *gpios; member
33 int gpio_amount;
45 dev_info(modem->device, "CMT rst line change detected\n"); in do_nokia_modem_rst_ind_tasklet()
47 if (modem->ssi_protocol) in do_nokia_modem_rst_ind_tasklet()
48 ssip_reset_event(modem->ssi_protocol); in do_nokia_modem_rst_ind_tasklet()
[all …]
/Linux-v6.1/arch/arm/boot/dts/
Dintel-ixp42x-goramo-multilink.dts1 // SPDX-License-Identifier: ISC
5 * - MultiLink Basic (a box)
6 * - MultiLink Max (19" rack mount)
9 * This is one of the few devices supporting the IXP4xx High-Speed Serial
14 /dts-v1/;
16 #include "intel-ixp42x.dtsi"
17 #include <dt-bindings/input/input.h>
21 compatible = "goramo,multilink-router", "intel,ixp42x";
22 #address-cells = <1>;
23 #size-cells = <1>;
[all …]
Dintel-ixp42x-linksys-nslu2.dts1 // SPDX-License-Identifier: ISC
6 /dts-v1/;
8 #include "intel-ixp42x.dtsi"
9 #include <dt-bindings/input/input.h>
14 #address-cells = <1>;
15 #size-cells = <1>;
25 stdout-path = "uart0:115200n8";
33 compatible = "gpio-leds";
34 led-status {
36 gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
[all …]
Dintel-ixp42x-iomega-nas100d.dts1 // SPDX-License-Identifier: ISC
6 /dts-v1/;
8 #include "intel-ixp42x.dtsi"
9 #include <dt-bindings/input/input.h>
13 compatible = "iom,nas-100d", "intel,ixp42x";
14 #address-cells = <1>;
15 #size-cells = <1>;
25 stdout-path = "uart0:115200n8";
33 compatible = "gpio-leds";
34 led-wlan {
[all …]
/Linux-v6.1/drivers/input/misc/
Drotary_encoder.c1 // SPDX-License-Identifier: GPL-2.0-only
11 * See file:Documentation/input/devices/rotary-encoder.rst for more information
26 #define DRV_NAME "rotary-encoder"
44 unsigned int pos;
46 struct gpio_descs *gpios; member
48 unsigned int *irq;
51 signed char dir; /* 1 - clockwise, -1 - CCW */
53 unsigned int last_stable;
56 static unsigned int rotary_encoder_get_state(struct rotary_encoder *encoder) in rotary_encoder_get_state()
58 int i; in rotary_encoder_get_state()
[all …]
/Linux-v6.1/drivers/mux/
Dgpio.c1 // SPDX-License-Identifier: GPL-2.0
3 * GPIO-controlled multiplexer driver
20 struct gpio_descs *gpios; member
23 static int mux_gpio_set(struct mux_control *mux, int state) in mux_gpio_set()
25 struct mux_gpio *mux_gpio = mux_chip_priv(mux->chip); in mux_gpio_set()
31 gpiod_set_array_value_cansleep(mux_gpio->gpios->ndescs, in mux_gpio_set()
32 mux_gpio->gpios->desc, in mux_gpio_set()
33 mux_gpio->gpios->info, values); in mux_gpio_set()
43 { .compatible = "gpio-mux", },
48 static int mux_gpio_probe(struct platform_device *pdev) in mux_gpio_probe()
[all …]
/Linux-v6.1/arch/arm64/boot/dts/freescale/
Dimx8mp-msc-sm2s-14N0600E.dtsi1 // SPDX-License-Identifier: GPL-2.0
5 /dts-v1/;
7 #include "imx8mp-msc-sm2s.dtsi"
33 gbe0-int-hog {
34 gpio-hog;
36 gpios = <3 GPIO_ACTIVE_LOW>;
39 gbe1-int-hog {
40 gpio-hog;
42 gpios = <4 GPIO_ACTIVE_LOW>;
45 cam2-rst-hog {
[all …]
/Linux-v6.1/drivers/bus/
Dts-nbus.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * NBUS driver for TS-4600 based boards
5 * Copyright (c) 2016 - Savoir-faire Linux
8 * This driver implements a GPIOs bit-banged bus, called the NBUS by Technologic
10 * TS-4600 SoM.
21 #include <linux/ts-nbus.h>
40 * request all gpios required by the bus.
42 static int ts_nbus_init_pdata(struct platform_device *pdev, struct ts_nbus in ts_nbus_init_pdata()
45 ts_nbus->data = devm_gpiod_get_array(&pdev->dev, "ts,data", in ts_nbus_init_pdata()
47 if (IS_ERR(ts_nbus->data)) { in ts_nbus_init_pdata()
[all …]
/Linux-v6.1/drivers/staging/olpc_dcon/
Dolpc_dcon_xo_1.c1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright © 2006-2007 Red Hat, Inc.
6 * Copyright © 2006-2007 Advanced Micro Devices, Inc.
37 static struct gpio_desc *gpios[5]; variable
39 static int dcon_init_xo_1(struct dcon_priv *dcon) in dcon_init_xo_1()
42 int ret, i; in dcon_init_xo_1()
46 gpios[i] = devm_gpiod_get(&dcon->client->dev, pin[i].name, in dcon_init_xo_1()
48 if (IS_ERR(gpios[i])) { in dcon_init_xo_1()
49 ret = PTR_ERR(gpios[i]); in dcon_init_xo_1()
69 dcon->curr_src = cs5535_gpio_isset(OLPC_GPIO_DCON_LOAD, GPIO_OUTPUT_VAL) in dcon_init_xo_1()
[all …]
/Linux-v6.1/drivers/iio/amplifiers/
Dhmc425a.c1 // SPDX-License-Identifier: GPL-2.0
29 unsigned int num_channels;
30 unsigned int num_gpios;
31 int gain_min;
32 int gain_max;
33 int default_gain;
40 struct gpio_descs *gpios; member
45 static int hmc425a_write(struct iio_dev *indio_dev, u32 value) in hmc425a_write()
52 gpiod_set_array_value_cansleep(st->gpios->ndescs, st->gpios->desc, in hmc425a_write()
57 static int hmc425a_read_raw(struct iio_dev *indio_dev, in hmc425a_read_raw()
[all …]
/Linux-v6.1/include/sound/
Dsoc-jack.h1 /* SPDX-License-Identifier: GPL-2.0
3 * soc-jack.h
12 * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
16 * @invert: if non-zero then pin is enabled when status is not reported
22 int mask;
27 * struct snd_soc_jack_zone - Describes voltage zones of jack detection
37 unsigned int min_mv;
38 unsigned int max_mv;
39 unsigned int jack_type;
40 unsigned int debounce_time;
[all …]
/Linux-v6.1/drivers/staging/iio/resolver/
Dad2s1210.c1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (c) 2010-2010 Analog Devices Inc.
78 static const struct ad2s1210_gpio gpios[] = { variable
86 static const unsigned int ad2s1210_resolution_value[] = { 10, 12, 14, 16 };
91 struct gpio_desc *gpios[5]; member
92 unsigned int fclkin;
93 unsigned int fexcit;
101 static const int ad2s1210_mode_vals[4][2] = {
110 gpiod_set_value(st->gpios[AD2S1210_A0], ad2s1210_mode_vals[mode][0]); in ad2s1210_set_mode()
111 gpiod_set_value(st->gpios[AD2S1210_A1], ad2s1210_mode_vals[mode][1]); in ad2s1210_set_mode()
[all …]
/Linux-v6.1/drivers/gpio/
Dgpiolib-legacy.c1 // SPDX-License-Identifier: GPL-2.0
16 * gpio_request_one - request a single GPIO with initial configuration
21 int gpio_request_one(unsigned gpio, unsigned long flags, const char *label) in gpio_request_one()
24 int err; in gpio_request_one()
28 /* Compatibility: assume unavailable "valid" GPIOs will appear later */ in gpio_request_one()
30 return -EPROBE_DEFER; in gpio_request_one()
37 set_bit(FLAG_OPEN_DRAIN, &desc->flags); in gpio_request_one()
40 set_bit(FLAG_OPEN_SOURCE, &desc->flags); in gpio_request_one()
43 set_bit(FLAG_ACTIVE_LOW, &desc->flags); in gpio_request_one()
68 int gpio_request(unsigned gpio, const char *label) in gpio_request()
[all …]

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