| /linux/Documentation/devicetree/bindings/bus/ |
| H A D | ts-nbus.txt | 4 Systems FPGA on the TS-4600 SoM.
7 - compatible : "technologic,ts-nbus"
8 - #address-cells : must be 1
9 - #size-cells : must be 0
10 - pwms : The PWM bound to the FPGA
11 - ts,data-gpios : The 8 GPIO pins connected to the data lines on the FPGA
12 - ts,csn-gpios : The GPIO pin connected to the csn line on the FPGA
13 - ts,txrx-gpios : The GPIO pin connected to the txrx line on the FPGA
14 - ts,strobe-gpios : The GPIO pin connected to the stobe line on the FPGA
15 - ts,ale-gpios : The GPIO pin connected to the ale line on the FPGA
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| /linux/Documentation/devicetree/bindings/mtd/ |
| H A D | gpio-control-nand.txt | 8 - compatible : "gpio-control-nand"
9 - reg : should specify localbus chip select and size used for the chip. The
12 - #address-cells, #size-cells : Must be present if the device has sub-nodes
14 - gpios : Specifies the GPIO pins to control the NAND device. The order of
15 GPIO references is: RDY, nCE, ALE, CLE, and nWP. nCE and nWP are optional.
18 - bank-width : Width (in bytes) of the device. If not present, the width
20 - chip-delay : chip dependent delay for transferring data from array to
22 - gpio-control-nand,io-sync-reg : A 64-bit physical address for a read
28 The device tree may optionally contain sub-nodes describing partitions of the
33 gpio-nand@1,0 {
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| H A D | atmel-nand.txt | 4 Documentation/devicetree/bindings/memory-controllers/atmel,ebi.txt).
11 - compatible: should be one of the following
12 "atmel,at91rm9200-nand-controller"
13 "atmel,at91sam9260-nand-controller"
14 "atmel,at91sam9261-nand-controller"
15 "atmel,at91sam9g45-nand-controller"
16 "atmel,sama5d3-nand-controller"
17 "microchip,sam9x60-nand-controller"
18 - ranges: empty ranges property to forward EBI ranges definitions.
19 - #address-cells: should be set to 2.
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| /linux/arch/arm/boot/dts/st/ |
| H A D | stih418-b2199.dts | 1 // SPDX-License-Identifier: GPL-2.0-only
6 /dts-v1/;
8 #include <dt-bindings/gpio/gpio.h>
11 compatible = "st,stih418-b2199", "st,stih418";
14 stdout-path = &sbc_serial0;
28 compatible = "gpio-leds";
29 led-red {
31 gpios = <&pio4 1 GPIO_ACTIVE_HIGH>;
32 linux,default-trigger = "heartbeat";
34 led-green {
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| H A D | stih418-b2264.dts | 1 // SPDX-License-Identifier: GPL-2.0-only
6 /dts-v1/;
8 #include <dt-bindings/gpio/gpio.h>
11 compatible = "st,stih418-b2264", "st,stih418";
14 stdout-path = &sbc_serial0;
24 operating-points-v2 = <&cpu_opp_table>;
25 /* u-boot puts hpen in SBC dmem at 0xb8 offset */
26 cpu-release-addr = <0x94100b8>;
29 operating-points-v2 = <&cpu_opp_table>;
30 /* u-boot puts hpen in SBC dmem at 0xb8 offset */
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| /linux/arch/arm/mach-pxa/ |
| H A D | am300epd.c | 2 * am300epd.c -- Platform device for AM300 EPD kit
10 * This work was made possible by help and equipment support from E-Ink
14 * on the AM300 EPD prototype kit/development kit with an E-Ink 800x600
32 #include "mfp-pxa25x.h"
34 #include <linux/platform_data/video-pxafb.h>
56 /* this is the 16-bit hdb bus 58-73 */
94 static int gpios[] = { PWR_GPIO_PIN, CFG_GPIO_PIN, RDY_GPIO_PIN, DC_GPIO_PIN, variable
97 static char *gpio_names[] = { "PWR", "CFG", "RDY", "DC", "RST", "RD", "WR",
103 wait_event(par->waitq, gpio_get_value(RDY_GPIO_PIN)); in am300_wait_event()
113 for (i = 0; i < ARRAY_SIZE(gpios); i++) { in am300_init_gpio_regs()
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| H A D | am200epd.c | 2 * am200epd.c -- Platform device for AM200 EPD kit
12 * This work was made possible by help and equipment support from E-Ink
16 * on the AM200 EPD prototype kit/development kit with an E-Ink 800x600
35 #include <linux/platform_data/video-pxafb.h>
101 static int gpios[] = { LED_GPIO_PIN , STDBY_GPIO_PIN , RST_GPIO_PIN, variable
103 static char *gpio_names[] = { "LED" , "STDBY" , "RST", "RDY", "ERR", "PCBPWR" };
110 for (i = 0; i < ARRAY_SIZE(gpios); i++) { in am200_init_gpio_regs()
111 err = gpio_request(gpios[i], gpio_names[i]); in am200_init_gpio_regs()
113 dev_err(&am200_device->dev, "failed requesting " in am200_init_gpio_regs()
131 while (--i >= 0) in am200_init_gpio_regs()
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| /linux/arch/mips/boot/dts/ni/ |
| H A D | 169445.dts | 1 /dts-v1/;
4 #address-cells = <1>;
5 #size-cells = <1>;
9 #address-cells = <1>;
10 #size-cells = <0>;
25 compatible = "fixed-clock";
26 #clock-cells = <0>;
27 clock-frequency = <50000000>;
30 cpu_intc: interrupt-controller {
31 #address-cells = <0>;
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| /linux/Documentation/driver-api/gpio/ |
| H A D | drivers-on-gpio.rst | 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,
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
24 - gpio_mouse: drivers/input/mouse/gpio_mouse.c is used to provide a mouse with
25 up to three buttons by simply using GPIOs and no mouse port. You can cut the
29 - gpio-beeper: drivers/input/misc/gpio-beeper.c is used to provide a beep from
31 off/on, for an actual PWM waveform, see pwm-gpio below.)
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| /linux/Documentation/devicetree/bindings/input/touchscreen/ |
| H A D | azoteq,iqs7211.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jeff LaBundy <jeff@labundy.com>
13 The Azoteq IQS7210A, IQS7211A and IQS7211E trackpad and touchscreen control-
14 lers employ projected-capacitance sensing and can track two contacts.
21 - azoteq,iqs7210a
22 - azoteq,iqs7211a
23 - azoteq,iqs7211e
28 irq-gpios:
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| /linux/Documentation/devicetree/bindings/iio/adc/ |
| H A D | adi,ad4170-4.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/adi,ad4170-4.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices AD4170-4 and similar Analog to Digital Converters
10 - Marcelo Schmitt <marcelo.schmitt@analog.com>
13 Analog Devices AD4170-4 series of Sigma-delta Analog to Digital Converters.
15 https://www.analog.com/media/en/technical-documentation/data-sheets/ad4170-4.pdf
16 https://www.analog.com/media/en/technical-documentation/data-sheets/ad4190-4.pdf
17 https://www.analog.com/media/en/technical-documentation/data-sheets/ad4195-4.pdf
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| /linux/drivers/input/misc/ |
| H A D | iqs7222.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
116 [IQS7222_REG_GRP_CYCLE] = "cycle-%d",
117 [IQS7222_REG_GRP_CHAN] = "channel-%d",
118 [IQS7222_REG_GRP_SLDR] = "slider-%d",
120 [IQS7222_REG_GRP_GPIO] = "gpio-%d",
150 .name = "event-prox",
155 .name = "event-touch",
162 { .name = "event-press", },
164 .name = "event-tap",
171 .name = "event-swipe-pos",
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| /linux/arch/arm/boot/dts/microchip/ |
| H A D | at91rm9200.dtsi | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * at91rm9200.dtsi - Device Tree Include file for AT91RM9200 family SoC
12 #include <dt-bindings/pinctrl/at91.h>
13 #include <dt-bindings/interrupt-controller/irq.h>
14 #include <dt-bindings/gpio/gpio.h>
15 #include <dt-bindings/clock/at91.h>
16 #include <dt-bindings/mfd/at91-usart.h>
19 #address-cells = <1>;
20 #size-cells = <1>;
23 interrupt-parent = <&aic>;
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| /linux/Documentation/devicetree/bindings/input/ |
| H A D | azoteq,iqs7222.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jeff LaBundy <jeff@labundy.com>
21 - azoteq,iqs7222a
22 - azoteq,iqs7222b
23 - azoteq,iqs7222c
24 - azoteq,iqs7222d
29 irq-gpios:
32 Specifies the GPIO connected to the device's active-low RDY output.
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| /linux/drivers/i2c/busses/ |
| H A D | i2c-pxa.c | 1 // SPDX-License-Identifier: GPL-2.0-only
8 * Copyright (C) 2004-2005 Deep Blue Solutions Ltd.
13 * Jan 2003: Fixed several bugs concerning interrupt handling [Kai-Uwe Bloem]
14 * Jan 2003: added limited signal handling [Kai-Uwe Bloem]
34 #include <linux/platform_data/i2c-pxa.h>
59 #define ICR_A3700_FM (1 << 16) /* fast mode for armada-3700 */
60 #define ICR_A3700_HS (1 << 17) /* high speed mode for armada-3700 */
92 * looking at a multi-master environment
96 #define NO_SLAVE (-ENXIO)
97 #define BUS_ERROR (-EREMOTEIO)
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| /linux/drivers/spi/ |
| H A D | spi-stm32.c | 1 // SPDX-License-Identifier: GPL-2.0
5 // Copyright (C) 2017, STMicroelectronics - All Rights Reserved
12 #include <linux/dma-mapping.h>
202 #define STM32_SPI_HOST_MODE(stm32_spi) (!(stm32_spi)->device_mode)
203 #define STM32_SPI_DEVICE_MODE(stm32_spi) ((stm32_spi)->device_mode)
206 * struct stm32_spi_reg - stm32 SPI register & bitfield desc
218 * struct stm32_spi_regspec - stm32 registers definition, compatible dependent data
250 * struct stm32_spi_cfg - stm32 compatible configuration data
305 * struct stm32_spi - private data of the SPI controller
317 * @cur_midi: host inter-data idleness in ns
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| H A D | spi-imx.c | 1 // SPDX-License-Identifier: GPL-2.0+
2 // Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
11 #include <linux/dma-mapping.h>
30 #include <linux/dma/imx-dma.h>
138 return d->devtype_data->devtype == IMX27_CSPI; in is_imx27_cspi()
143 return d->devtype_data->devtype == IMX35_CSPI; in is_imx35_cspi()
148 return d->devtype_data->devtype == IMX51_ECSPI; in is_imx51_ecspi()
153 return d->devtype_data->devtype == IMX53_ECSPI; in is_imx53_ecspi()
159 unsigned int val = readl(spi_imx->base + MXC_CSPIRXDATA); \
161 if (spi_imx->rx_buf) { \
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