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/kernel/linux/linux-4.19/Documentation/devicetree/bindings/i2c/
Di2c-gpio.txt1 Device-Tree bindings for i2c gpio driver
4 - compatible = "i2c-gpio";
5 - sda-gpios: gpio used for the sda signal, this should be flagged as
6 active high using open drain with (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)
7 from <dt-bindings/gpio/gpio.h> since the signal is by definition
8 open drain.
9 - scl-gpios: gpio used for the scl signal, this should be flagged as
10 active high using open drain with (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)
11 from <dt-bindings/gpio/gpio.h> since the signal is by definition
12 open drain.
[all …]
/kernel/linux/linux-5.10/Documentation/devicetree/bindings/i2c/
Di2c-gpio.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/i2c/i2c-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Wolfram Sang <wolfram@the-dreams.de>
13 - $ref: /schemas/i2c/i2c-controller.yaml#
18 - const: i2c-gpio
20 sda-gpios:
22 gpio used for the sda signal, this should be flagged as
23 active high using open drain with (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)
[all …]
/kernel/linux/linux-4.19/drivers/i2c/busses/
Di2c-gpio.c13 #include <linux/i2c-algo-bit.h>
14 #include <linux/platform_data/i2c-gpio.h>
23 struct gpio_desc *sda; member
34 * Toggle SDA by changing the output value of the pin. This is only
35 * valid for pins configured as open drain (i.e. setting the value
42 gpiod_set_value_cansleep(priv->sda, state); in i2c_gpio_setsda_val()
47 * for pins that are configured as open drain and for output-only
55 gpiod_set_value_cansleep(priv->scl, state); in i2c_gpio_setscl_val()
62 return gpiod_get_value_cansleep(priv->sda); in i2c_gpio_getsda()
69 return gpiod_get_value_cansleep(priv->scl); in i2c_gpio_getscl()
[all …]
/kernel/linux/linux-5.10/drivers/i2c/busses/
Di2c-gpio.c1 // SPDX-License-Identifier: GPL-2.0-only
11 #include <linux/i2c-algo-bit.h>
17 #include <linux/platform_data/i2c-gpio.h>
22 struct gpio_desc *sda; member
36 * Toggle SDA by changing the output value of the pin. This is only
37 * valid for pins configured as open drain (i.e. setting the value
44 gpiod_set_value_cansleep(priv->sda, state); in i2c_gpio_setsda_val()
49 * for pins that are configured as open drain and for output-only
57 gpiod_set_value_cansleep(priv->scl, state); in i2c_gpio_setscl_val()
64 return gpiod_get_value_cansleep(priv->sda); in i2c_gpio_getsda()
[all …]
/kernel/linux/linux-5.10/include/linux/platform_data/
Di2c-gpio.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * i2c-gpio interface to platform code
11 * struct i2c_gpio_platform_data - Platform-dependent data for i2c-gpio
15 * @sda_is_open_drain: SDA is configured as open drain, i.e. the pin
19 * @scl_is_open_drain: SCL is set up as open drain. Same requirements
/kernel/linux/linux-4.19/include/linux/platform_data/
Di2c-gpio.h2 * i2c-gpio interface to platform code
14 * struct i2c_gpio_platform_data - Platform-dependent data for i2c-gpio
18 * @sda_is_open_drain: SDA is configured as open drain, i.e. the pin
22 * @scl_is_open_drain: SCL is set up as open drain. Same requirements
/kernel/linux/linux-5.10/arch/arm/boot/dts/
Dat91-foxg20.dts1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * at91-foxg20.dts - Device Tree file for Acme Systems FoxG20 board
9 /dts-v1/;
26 clock-frequency = <32768>;
30 clock-frequency = <18432000>;
38 compatible = "atmel,tcb-timer";
43 compatible = "atmel,tcb-timer";
49 atmel,vbus-gpio = <&pioC 6 GPIO_ACTIVE_HIGH>;
54 pinctrl-0 = <
58 pinctrl-names = "default";
[all …]
Dat91sam9x5.dtsi1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * at91sam9x5.dtsi - Device Tree Include file for AT91SAM9x5 family SoC
11 #include <dt-bindings/dma/at91.h>
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>
18 #address-cells = <1>;
19 #size-cells = <1>;
22 interrupt-parent = <&aic>;
[all …]
Dat91sam9rl.dtsi1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * at91sam9rl.dtsi - Device Tree Include file for AT91SAM9RL family SoC
6 * Alexandre Belloni <alexandre.belloni@free-electrons.com>
9 #include <dt-bindings/pinctrl/at91.h>
10 #include <dt-bindings/clock/at91.h>
11 #include <dt-bindings/interrupt-controller/irq.h>
12 #include <dt-bindings/gpio/gpio.h>
13 #include <dt-bindings/pwm/pwm.h>
16 #address-cells = <1>;
17 #size-cells = <1>;
[all …]
Dstm32f7-pinctrl.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
3 * Copyright (C) STMicroelectronics 2017 - All Rights Reserved
7 #include <dt-bindings/pinctrl/stm32-pinfunc.h>
8 #include <dt-bindings/mfd/stm32f7-rcc.h>
12 pinctrl: pin-controller {
13 #address-cells = <1>;
14 #size-cells = <1>;
16 interrupt-parent = <&exti>;
18 pins-are-numbered;
21 gpio-controller;
[all …]
Dtegra124-apalis-v1.2.dtsi1 // SPDX-License-Identifier: GPL-2.0 OR MIT
3 * Copyright 2016-2018 Toradex AG
7 #include "tegra124-apalis-emc.dtsi"
21 avddio-pex-supply = <&reg_1v05_vdd>;
22 avdd-pex-pll-supply = <&reg_1v05_vdd>;
23 avdd-pll-erefe-supply = <&reg_1v05_avdd>;
24 dvddio-pex-supply = <&reg_1v05_vdd>;
25 hvdd-pex-pll-e-supply = <&reg_module_3v3>;
26 hvdd-pex-supply = <&reg_module_3v3>;
27 vddio-pex-ctl-supply = <&reg_module_3v3>;
[all …]
Dtegra124-apalis.dtsi1 // SPDX-License-Identifier: GPL-2.0 OR X11
3 * Copyright 2016-2019 Toradex AG
7 #include "tegra124-apalis-emc.dtsi"
20 avddio-pex-supply = <&reg_1v05_vdd>;
21 avdd-pex-pll-supply = <&reg_1v05_vdd>;
22 avdd-pll-erefe-supply = <&reg_1v05_avdd>;
23 dvddio-pex-supply = <&reg_1v05_vdd>;
24 hvdd-pex-pll-e-supply = <&reg_module_3v3>;
25 hvdd-pex-supply = <&reg_module_3v3>;
26 vddio-pex-ctl-supply = <&reg_module_3v3>;
[all …]
Dat91sam9261.dtsi1 // SPDX-License-Identifier: GPL-2.0-only
3 * at91sam9261.dtsi - Device Tree Include file for AT91SAM9261 SoC
5 * Copyright (C) 2013 Jean-Jacques Hiblot <jjhiblot@traphandler.com>
8 #include <dt-bindings/pinctrl/at91.h>
9 #include <dt-bindings/interrupt-controller/irq.h>
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/clock/at91.h>
14 #address-cells = <1>;
15 #size-cells = <1>;
18 interrupt-parent = <&aic>;
[all …]
Dat91rm9200.dtsi1 // 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>
18 #address-cells = <1>;
19 #size-cells = <1>;
22 interrupt-parent = <&aic>;
42 #address-cells = <1>;
[all …]
/kernel/linux/linux-4.19/arch/arm/boot/dts/
Dat91-foxg20.dts2 * at91-foxg20.dts - Device Tree file for Acme Systems FoxG20 board
10 /dts-v1/;
27 clock-frequency = <32768>;
31 clock-frequency = <18432000>;
39 compatible = "atmel,tcb-timer";
44 compatible = "atmel,tcb-timer";
50 atmel,vbus-gpio = <&pioC 6 GPIO_ACTIVE_HIGH>;
55 pinctrl-0 = <
63 bus-width = <4>;
68 pinctrl-0 =
[all …]
Dat91sam9x5.dtsi2 * at91sam9x5.dtsi - Device Tree Include file for AT91SAM9x5 family SoC
13 #include <dt-bindings/dma/at91.h>
14 #include <dt-bindings/pinctrl/at91.h>
15 #include <dt-bindings/interrupt-controller/irq.h>
16 #include <dt-bindings/gpio/gpio.h>
17 #include <dt-bindings/clock/at91.h>
22 interrupt-parent = <&aic>;
42 #address-cells = <0>;
43 #size-cells = <0>;
46 compatible = "arm,arm926ej-s";
[all …]
Dstm32f7-pinctrl.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
3 * Copyright (C) STMicroelectronics 2017 - All Rights Reserved
7 #include <dt-bindings/pinctrl/stm32-pinfunc.h>
8 #include <dt-bindings/mfd/stm32f7-rcc.h>
12 pinctrl: pin-controller {
13 #address-cells = <1>;
14 #size-cells = <1>;
16 interrupt-parent = <&exti>;
18 pins-are-numbered;
21 gpio-controller;
[all …]
Dat91sam9rl.dtsi2 * at91sam9rl.dtsi - Device Tree Include file for AT91SAM9RL family SoC
5 * Alexandre Belloni <alexandre.belloni@free-electrons.com>
11 #include <dt-bindings/pinctrl/at91.h>
12 #include <dt-bindings/clock/at91.h>
13 #include <dt-bindings/interrupt-controller/irq.h>
14 #include <dt-bindings/gpio/gpio.h>
15 #include <dt-bindings/pwm/pwm.h>
20 interrupt-parent = <&aic>;
41 #address-cells = <0>;
42 #size-cells = <0>;
[all …]
/kernel/linux/linux-4.19/arch/powerpc/boot/dts/
Dwii.dts5 * Copyright (C) 2008-2009 The GameCube Linux Team
15 /dts-v1/;
16 #include <dt-bindings/gpio/gpio.h>
19 * This is commented-out for now.
29 #address-cells = <1>;
30 #size-cells = <1>;
33 bootargs = "root=/dev/mmcblk0p2 rootwait udbg-immortal";
38 reg = <0x00000000 0x01800000 /* MEM1 24MB 1T-SRAM */
43 #address-cells = <1>;
44 #size-cells = <0>;
[all …]
/kernel/linux/linux-5.10/arch/powerpc/boot/dts/
Dwii.dts1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Copyright (C) 2008-2009 The GameCube Linux Team
10 /dts-v1/;
11 #include <dt-bindings/gpio/gpio.h>
12 #include <dt-bindings/input/input.h>
15 * This is commented-out for now.
25 #address-cells = <1>;
26 #size-cells = <1>;
29 bootargs = "root=/dev/mmcblk0p2 rootwait udbg-immortal";
34 reg = <0x00000000 0x01800000 /* MEM1 24MB 1T-SRAM */
[all …]
/kernel/linux/linux-5.10/Documentation/devicetree/bindings/mfd/
Das3722.txt4 -------------------
5 - compatible: Must be "ams,as3722".
6 - reg: I2C device address.
7 - interrupt-controller: AS3722 has internal interrupt controller which takes the
8 interrupt request from internal sub-blocks like RTC, regulators, GPIOs as well
10 - #interrupt-cells: Should be set to 2 for IRQ number and flags.
12 of AS3722 are defined at dt-bindings/mfd/as3722.h
14 interrupts.txt, using dt-bindings/irq.
17 --------------------
18 - ams,enable-internal-int-pullup: Boolean property, to enable internal pullup on
[all …]
/kernel/linux/linux-4.19/Documentation/devicetree/bindings/mfd/
Das3722.txt4 -------------------
5 - compatible: Must be "ams,as3722".
6 - reg: I2C device address.
7 - interrupt-controller: AS3722 has internal interrupt controller which takes the
8 interrupt request from internal sub-blocks like RTC, regulators, GPIOs as well
10 - #interrupt-cells: Should be set to 2 for IRQ number and flags.
12 of AS3722 are defined at dt-bindings/mfd/as3722.h
14 interrupts.txt, using dt-bindings/irq.
17 --------------------
18 - ams,enable-internal-int-pullup: Boolean property, to enable internal pullup on
[all …]
/kernel/linux/linux-5.10/Documentation/driver-api/
Di2c.rst5 the "Inter-IC" bus, a simple bus protocol which is widely used where low
7 some vendors use another name (such as "Two-Wire Interface", TWI) for
8 the same bus. I2C only needs two signals (SCL for clock, SDA for data),
12 I2C is a multi-master bus; open drain signaling is used to arbitrate
38 .. kernel-doc:: include/linux/i2c.h
41 .. kernel-doc:: drivers/i2c/i2c-boardinfo.c
44 .. kernel-doc:: drivers/i2c/i2c-core-base.c
47 .. kernel-doc:: drivers/i2c/i2c-core-smbus.c
/kernel/linux/linux-4.19/Documentation/driver-api/
Di2c.rst5 the "Inter-IC" bus, a simple bus protocol which is widely used where low
7 some vendors use another name (such as "Two-Wire Interface", TWI) for
8 the same bus. I2C only needs two signals (SCL for clock, SDA for data),
12 I2C is a multi-master bus; open drain signaling is used to arbitrate
38 .. kernel-doc:: include/linux/i2c.h
41 .. kernel-doc:: drivers/i2c/i2c-boardinfo.c
44 .. kernel-doc:: drivers/i2c/i2c-core-base.c
47 .. kernel-doc:: drivers/i2c/i2c-core-smbus.c
/kernel/linux/linux-5.10/Documentation/driver-api/gpio/
Ddriver.rst26 between 0 and n-1, n being the number of GPIOs managed by the chip.
29 example if a system uses a memory-mapped set of I/O-registers where 32 GPIO
30 lines are handled by one bit per line in a 32-bit register, it makes sense to
44 So for example one platform could use global numbers 32-159 for GPIOs, with a
46 global numbers 0..63 with one set of GPIO controllers, 64-79 with another type
47 of GPIO controller, and on one particular board 80-95 with an FPGA. The legacy
49 2000-2063 to identify GPIO lines in a bank of I2C GPIO expanders.
60 - methods to establish GPIO line direction
61 - methods used to access GPIO line values
62 - method to set electrical configuration for a given GPIO line
[all …]

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