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/linux/drivers/gpio/
H A DMakefile2 # generic gpio support: platform drivers, dedicated expander chips, etc
16 obj-$(CONFIG_GPIO_REGMAP) += gpio-regmap.o
17 obj-$(CONFIG_GPIO_GENERIC) += gpio-generic.o
19 # directly supported by gpio-generic
20 gpio-generic-$(CONFIG_GPIO_GENERIC) += gpio-mmio.o
22 obj-$(CONFIG_GPIO_104_DIO_48E) += gpio-104-dio-48e.o
23 obj-$(CONFIG_GPIO_104_IDI_48) += gpio-104-idi-48.o
24 obj-$(CONFIG_GPIO_104_IDIO_16) += gpio-104-idio-16.o
25 obj-$(CONFIG_GPIO_74X164) += gpio-74x164.o
26 obj-$(CONFIG_GPIO_74XX_MMIO) += gpio-74xx-mmio.o
[all …]
H A Dgpio-aspeed.c9 #include <linux/gpio/aspeed.h>
10 #include <linux/gpio/driver.h>
25 * These two headers aren't meant to be used by GPIO drivers. We need
30 #include <linux/gpio/consumer.h>
75 * represents disabled debouncing for the GPIO. Any other value for an element
109 * line even when the GPIO is configured as an output. Since
223 void (*reg_bit_set)(struct aspeed_gpio *gpio, unsigned int offset,
225 bool (*reg_bit_get)(struct aspeed_gpio *gpio, unsigned int offset,
227 int (*reg_bank_get)(struct aspeed_gpio *gpio, unsigned int offset,
229 void (*privilege_ctrl)(struct aspeed_gpio *gpio, unsigned int offset, int owner);
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H A Dgpio-regmap.c3 * 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
68 if (gpio->reg_dat_base) in gpio_regmap_get()
[all …]
H A Dgpio-zynq.c3 * Xilinx Zynq GPIO device driver
10 #include <linux/gpio/driver.h>
20 #define DRIVER_NAME "zynq-gpio"
63 /* Register offsets for the GPIO device */
96 /* GPIO upper 16 bit mask */
117 * struct zynq_gpio - gpio device private data structure
119 * @base_addr: base address of the GPIO device
121 * @irq: interrupt for the GPIO device
137 * struct zynq_platform_data - zynq gpio platform data structure
138 * @label: string to store in gpio->label
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H A Dgpio-npcm-sgpio.c3 * Nuvoton NPCM Serial GPIO Driver
10 #include <linux/gpio/driver.h>
137 static void __iomem *bank_reg(struct npcm_sgpio *gpio, in bank_reg() argument
143 return gpio->base + bank->rdata_reg; in bank_reg()
145 return gpio->base + bank->wdata_reg; in bank_reg()
147 return gpio->base + bank->event_config; in bank_reg()
149 return gpio->base + bank->event_status; in bank_reg()
152 dev_WARN(gpio->chip.parent, "Getting here is an error condition"); in bank_reg()
165 struct npcm_sgpio **gpio, in npcm_sgpio_irqd_to_data() argument
174 *gpio = internal; in npcm_sgpio_irqd_to_data()
[all …]
/linux/Documentation/devicetree/bindings/pinctrl/
H A Dqcom,pmic-gpio.yaml4 $id: http://devicetree.org/schemas/pinctrl/qcom,pmic-gpio.yaml#
7 title: Qualcomm PMIC GPIO block
13 This binding describes the GPIO block(s) found in the 8xxx series of
20 - qcom,pm2250-gpio
21 - qcom,pm660-gpio
22 - qcom,pm660l-gpio
23 - qcom,pm6125-gpio
24 - qcom,pm6150-gpio
25 - qcom,pm6150l-gpio
26 - qcom,pm6350-gpio
[all …]
H A Dmarvell,kirkwood-pinctrl.txt24 mpp0 0 gpio, nand(io2), spi(cs)
28 mpp4 4 gpio, nand(io6), uart0(rxd), ptp(clk)
32 mpp8 8 gpio, twsi0(sda), uart0(rts), uart1(rts), ptp(clk),
34 mpp9 9 gpio, twsi(sck), uart0(cts), uart1(cts), ptp(evreq),
37 mpp11 11 gpio, spi(miso), uart0(rxd), ptp(clk), ptp-1(evreq),
40 mpp13 13 gpio, sdio(cmd), uart1(txd)
41 mpp14 14 gpio, sdio(d0), uart1(rxd), mii(col)
42 mpp15 15 gpio, sdio(d1), uart0(rts), uart1(txd)
43 mpp16 16 gpio, sdio(d2), uart0(cts), uart1(rxd), mii(crs)
44 mpp17 17 gpio, sdio(d3)
[all …]
H A Dmarvell,armada-375-pinctrl.txt16 mpp0 0 gpio, dev(ad2), spi0(cs1), spi1(cs1)
17 mpp1 1 gpio, dev(ad3), spi0(mosi), spi1(mosi)
18 mpp2 2 gpio, dev(ad4), ptp(evreq), led(c0), audio(sdi)
19 mpp3 3 gpio, dev(ad5), ptp(trig), led(p3), audio(mclk)
20 mpp4 4 gpio, dev(ad6), spi0(miso), spi1(miso)
21 mpp5 5 gpio, dev(ad7), spi0(cs2), spi1(cs2)
22 mpp6 6 gpio, dev(ad0), led(p1), audio(lrclk)
23 mpp7 7 gpio, dev(ad1), ptp(clk), led(p2), audio(extclk)
24 mpp8 8 gpio, dev (bootcs), spi0(cs0), spi1(cs0)
25 mpp9 9 gpio, spi0(sck), spi1(sck), nand(we)
[all …]
H A Dmarvell,armada-xp-pinctrl.txt21 mpp0 0 gpio, ge0(txclkout), lcd(d0)
22 mpp1 1 gpio, ge0(txd0), lcd(d1)
23 mpp2 2 gpio, ge0(txd1), lcd(d2)
24 mpp3 3 gpio, ge0(txd2), lcd(d3)
25 mpp4 4 gpio, ge0(txd3), lcd(d4)
26 mpp5 5 gpio, ge0(txctl), lcd(d5)
27 mpp6 6 gpio, ge0(rxd0), lcd(d6)
28 mpp7 7 gpio, ge0(rxd1), lcd(d7)
29 mpp8 8 gpio, ge0(rxd2), lcd(d8)
30 mpp9 9 gpio, ge0(rxd3), lcd(d9)
[all …]
H A Dmarvell,armada-37xx-pinctrl.txt1 * Marvell Armada 37xx SoC pin and gpio controller
3 Each Armada 37xx SoC come with two pin and gpio controller one for the
6 Inside this set of register the gpio latch allows exposing some
11 GPIO and pin controller:
26 - reg: The first set of register are for pinctrl/gpio and the second
28 - interrupts: list of the interrupt use by the gpio
34 - functions jtag, gpio
38 - functions sdio, gpio
42 - functions emmc, gpio
46 - functions pwm, led, gpio
[all …]
H A Dmarvell,orion-pinctrl.txt24 mpp0 0 pcie(rstout), pci(req2), gpio
25 mpp1 1 gpio, pci(gnt2)
26 mpp2 2 gpio, pci(req3), pci-1(pme)
27 mpp3 3 gpio, pci(gnt3)
28 mpp4 4 gpio, pci(req4)
29 mpp5 5 gpio, pci(gnt4)
30 mpp6 6 gpio, pci(req5), pci-1(clk)
31 mpp7 7 gpio, pci(gnt5), pci-1(clk)
32 mpp8 8 gpio, ge(col)
33 mpp9 9 gpio, ge(rxerr)
[all …]
/linux/drivers/gpu/drm/amd/display/dc/gpio/
H A Dgpio_base.c53 struct gpio *gpio, in dal_gpio_open() argument
56 return dal_gpio_open_ex(gpio, mode); in dal_gpio_open()
60 struct gpio *gpio, in dal_gpio_open_ex() argument
63 if (gpio->pin) { in dal_gpio_open_ex()
68 // No action if allocation failed during gpio construct in dal_gpio_open_ex()
69 if (!gpio->hw_container.ddc) { in dal_gpio_open_ex()
73 gpio->mode = mode; in dal_gpio_open_ex()
75 return dal_gpio_service_open(gpio); in dal_gpio_open_ex()
79 const struct gpio *gpio, in dal_gpio_get_value() argument
82 if (!gpio->pin) { in dal_gpio_get_value()
[all …]
/linux/arch/arm/boot/dts/samsung/
H A Dexynos5410-pinctrl.dtsi12 gpa0: gpa0-gpio-bank {
13 gpio-controller;
14 #gpio-cells = <2>;
20 gpa1: gpa1-gpio-bank {
21 gpio-controller;
22 #gpio-cells = <2>;
28 gpa2: gpa2-gpio-bank {
29 gpio-controller;
30 #gpio-cells = <2>;
36 gpb0: gpb0-gpio-bank {
[all …]
/linux/arch/arc/boot/dts/
H A Dabilis_tb101.dtsi37 pctl_gpio_a: pctl-gpio-a { /* GPIO bank A */
50 pctl_gpio_c: pctl-gpio-c { /* GPIO bank C */
63 pctl_gpio_e: pctl-gpio-e { /* GPIO bank E */
76 pctl_gpio_g: pctl-gpio-g { /* GPIO bank G */
83 pctl_gpio_j: pctl-gpio-j { /* GPIO bank J */
86 pctl_gpio_k: pctl-gpio-k { /* GPIO bank K */
124 pctl_gpio_l: pctl-gpio-l { /* GPIO bank L */
127 pctl_gpio_m: pctl-gpio-m { /* GPIO bank M */
141 pctl_gpio_n: pctl-gpio-n {
145 pctl_gpio_b: pctl-gpio-b {
[all …]
H A Dabilis_tb100.dtsi37 pctl_gpio_a: pctl-gpio-a { /* GPIO bank A */
50 pctl_gpio_c: pctl-gpio-c { /* GPIO bank C */
63 pctl_gpio_e: pctl-gpio-e { /* GPIO bank E */
76 pctl_gpio_g: pctl-gpio-g { /* GPIO bank G */
83 pctl_gpio_j: pctl-gpio-j { /* GPIO bank J */
86 pctl_gpio_k: pctl-gpio-k { /* GPIO bank K */
118 pctl_gpio_l: pctl-gpio-l { /* GPIO bank L */
121 pctl_gpio_m: pctl-gpio-m { /* GPIO bank M */
132 pctl_gpio_n: pctl-gpio-n {
136 pctl_gpio_b: pctl-gpio-b {
[all …]
/linux/Documentation/driver-api/gpio/
H A Ddrivers-on-gpio.rst2 Subsystem drivers using GPIO
5 Note that standard kernel drivers exist for common GPIO tasks and will provide
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
26 mouse cable and connect the wires to GPIO lines or solder a mouse connector
[all …]
/linux/Documentation/admin-guide/gpio/
H A Dgpio-sim.rst3 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
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``
29 **Attribute:** ``/config/gpio-sim/gpio-device/live``
31 This is a directory representing a GPIO platform device. The ``'dev_name'``
[all …]
/linux/Documentation/devicetree/bindings/gpio/
H A Dfsl-imx-gpio.yaml4 $id: http://devicetree.org/schemas/gpio/fsl-imx-gpio.yaml#
7 title: Freescale i.MX/MXC GPIO controller
18 - fsl,imx1-gpio
19 - fsl,imx21-gpio
20 - fsl,imx31-gpio
21 - fsl,imx35-gpio
22 - fsl,imx7d-gpio
25 - fsl,imx27-gpio
26 - const: fsl,imx21-gpio
28 - const: fsl,imx35-gpio
[all …]
H A Drenesas,rcar-gpio.yaml4 $id: http://devicetree.org/schemas/gpio/renesas,rcar-gpio.yaml#
7 title: Renesas R-Car General-Purpose Input/Output Ports (GPIO)
17 - renesas,gpio-r8a7778 # R-Car M1
18 - renesas,gpio-r8a7779 # R-Car H1
19 - const: renesas,rcar-gen1-gpio # R-Car Gen1
23 - renesas,gpio-r8a7742 # RZ/G1H
24 - renesas,gpio-r8a7743 # RZ/G1M
25 - renesas,gpio-r8a7744 # RZ/G1N
26 - renesas,gpio-r8a7745 # RZ/G1E
27 - renesas,gpio-r8a77470 # RZ/G1C
[all …]
H A Dgpio.txt1 Specifying GPIO information for devices
7 GPIO properties should be named "[<name>-]gpios", with <name> being the purpose
8 of this GPIO for the device. While a non-existent <name> is considered valid
10 for new bindings. Also, GPIO properties named "[<name>-]gpio" are valid and old
14 GPIO properties can contain one or more GPIO phandles, but only in exceptional
23 The following example could be used to describe GPIO pins used as device enable
27 gpio-controller;
28 #gpio-cells = <2>;
37 In the above example, &gpio1 uses 2 cells to specify a gpio. The first cell is
38 a local offset to the GPIO line and the second cell represent consumer flags,
[all …]
H A Dgpio-ep9301.yaml4 $id: http://devicetree.org/schemas/gpio/gpio-ep9301.yaml#
7 title: EP93xx GPIO controller
17 - const: cirrus,ep9301-gpio
20 - cirrus,ep9302-gpio
21 - cirrus,ep9307-gpio
22 - cirrus,ep9312-gpio
23 - cirrus,ep9315-gpio
24 - const: cirrus,ep9301-gpio
40 gpio-controller: true
42 gpio-ranges: true
[all …]
/linux/drivers/gpu/drm/amd/display/include/
H A Dgpio_interface.h32 struct gpio;
36 struct gpio *gpio,
40 struct gpio *gpio,
45 const struct gpio *gpio,
50 const struct gpio *gpio,
55 const struct gpio *gpio);
59 struct gpio *gpio,
64 struct gpio *gpio);
68 struct gpio *gpio);
70 /* Get the GPIO id */
[all …]
/linux/arch/mips/include/asm/mach-au1x00/
H A Dgpio-au1000.h2 * GPIO functions for Au1000, Au1500, Au1100, Au1550, Au1200
14 /* The default GPIO numberspace as documented in the Alchemy manuals.
43 struct gpio;
45 static inline int au1000_gpio1_to_irq(int gpio) in au1000_gpio1_to_irq() argument
47 return MAKE_IRQ(1, gpio - ALCHEMY_GPIO1_BASE); in au1000_gpio1_to_irq()
50 static inline int au1000_gpio2_to_irq(int gpio) in au1000_gpio2_to_irq() argument
63 static inline int au1500_gpio1_to_irq(int gpio) in au1500_gpio1_to_irq() argument
65 gpio -= ALCHEMY_GPIO1_BASE; in au1500_gpio1_to_irq()
67 switch (gpio) { in au1500_gpio1_to_irq()
70 case 23 ... 28: return MAKE_IRQ(1, gpio); in au1500_gpio1_to_irq()
[all …]
/linux/arch/arm64/boot/dts/tesla/
H A Dfsd-pinctrl.dtsi14 gpf0: gpf0-gpio-bank {
15 gpio-controller;
16 #gpio-cells = <2>;
22 gpf1: gpf1-gpio-bank {
23 gpio-controller;
24 #gpio-cells = <2>;
30 gpf6: gpf6-gpio-bank {
31 gpio-controller;
32 #gpio-cells = <2>;
38 gpf4: gpf4-gpio-bank {
[all …]
/linux/drivers/ssb/
H A Ddriver_gpio.c3 * GPIO driver
13 #include <linux/gpio/driver.h>
26 static int ssb_gpio_to_irq(struct gpio_chip *chip, unsigned int gpio) in ssb_gpio_to_irq() argument
31 return irq_find_mapping(bus->irq_domain, gpio); in ssb_gpio_to_irq()
41 static int ssb_gpio_chipco_get_value(struct gpio_chip *chip, unsigned int gpio) in ssb_gpio_chipco_get_value() argument
45 return !!ssb_chipco_gpio_in(&bus->chipco, 1 << gpio); in ssb_gpio_chipco_get_value()
48 static void ssb_gpio_chipco_set_value(struct gpio_chip *chip, unsigned int gpio, in ssb_gpio_chipco_set_value() argument
53 ssb_chipco_gpio_out(&bus->chipco, 1 << gpio, value ? 1 << gpio : 0); in ssb_gpio_chipco_set_value()
57 unsigned int gpio) in ssb_gpio_chipco_direction_input() argument
61 ssb_chipco_gpio_outen(&bus->chipco, 1 << gpio, 0); in ssb_gpio_chipco_direction_input()
[all …]

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