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/kernel/linux/linux-6.6/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#
7 title: GPIO bitbanged I2C
10 - Wolfram Sang <wsa@kernel.org>
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
[all …]
Dsamsung,s3c2410-i2c.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/i2c/samsung,s3c2410-i2c.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Samsung S3C/S5P/Exynos SoC I2C Controller
10 - Krzysztof Kozlowski <krzk@kernel.org>
15 - samsung,s3c2410-i2c
16 - samsung,s3c2440-i2c
17 # For s3c2440-like I2C used inside HDMIPHY block found on several SoCs:
18 - samsung,s3c2440-hdmiphy-i2c
[all …]
Di2c.txt1 Generic device tree bindings for I2C busses
4 This document describes generic bindings which can be used to describe I2C
8 -----------------------------
10 - #address-cells - should be <1>. Read more about addresses below.
11 - #size-cells - should be <0>.
12 - compatible - name of I2C bus controller
17 The cells properties above define that an address of children of an I2C bus
21 -----------------------------
26 - clock-frequency
29 - i2c-bus
[all …]
/kernel/linux/linux-5.10/Documentation/devicetree/bindings/i2c/
Di2c-s3c2410.txt1 * Samsung's I2C controller
3 The Samsung's I2C controller is used to interface with I2C devices.
6 - compatible: value should be either of the following.
7 (a) "samsung, s3c2410-i2c", for i2c compatible with s3c2410 i2c.
8 (b) "samsung, s3c2440-i2c", for i2c compatible with s3c2440 i2c.
9 (c) "samsung, s3c2440-hdmiphy-i2c", for s3c2440-like i2c used
11 (d) "samsung, exynos5-sata-phy-i2c", for s3c2440-like i2c used as
13 - reg: physical base address of the controller and length of memory mapped
15 - interrupts: interrupt number to the cpu.
16 - samsung,i2c-sda-delay: Delay (in ns) applied to data line (SDA) edges.
[all …]
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#
7 title: Bindings for GPIO bitbanged I2C
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
[all …]
Di2c.txt1 Generic device tree bindings for I2C busses
4 This document describes generic bindings which can be used to describe I2C
8 -----------------------------
10 - #address-cells - should be <1>. Read more about addresses below.
11 - #size-cells - should be <0>.
12 - compatible - name of I2C bus controller
17 The cells properties above define that an address of children of an I2C bus
21 -----------------------------
26 - clock-frequency
29 - i2c-bus
[all …]
/kernel/linux/linux-5.10/arch/arm/boot/dts/
Dexynos5250-spring.dts1 // SPDX-License-Identifier: GPL-2.0
9 /dts-v1/;
10 #include <dt-bindings/clock/samsung,s2mps11.h>
11 #include <dt-bindings/gpio/gpio.h>
12 #include <dt-bindings/interrupt-controller/irq.h>
13 #include <dt-bindings/input/input.h>
27 stdout-path = "serial3:115200n8";
30 gpio-keys {
31 compatible = "gpio-keys";
32 pinctrl-names = "default";
[all …]
Dexynos5250-snow-common.dtsi1 // SPDX-License-Identifier: GPL-2.0
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/clock/maxim,max77686.h>
10 #include <dt-bindings/interrupt-controller/irq.h>
11 #include <dt-bindings/input/input.h>
12 #include <dt-bindings/sound/samsung-i2s.h>
27 stdout-path = "serial3:115200n8";
30 gpio-keys {
31 compatible = "gpio-keys";
32 pinctrl-names = "default";
[all …]
Dkirkwood-km_common.dtsi1 // SPDX-License-Identifier: GPL-2.0
5 stdout-path = &uart0;
9 pinctrl: pin-controller@10000 {
10 pinctrl-0 = < &pmx_i2c_gpio_sda &pmx_i2c_gpio_scl >;
11 pinctrl-names = "default";
13 pmx_i2c_gpio_sda: pmx-gpio-sda {
17 pmx_i2c_gpio_scl: pmx-gpio-scl {
28 i2c {
29 compatible = "i2c-gpio";
30 gpios = < &gpio0 8 GPIO_ACTIVE_HIGH /* sda */
[all …]
Dexynos5250-smdk5250.dts1 // SPDX-License-Identifier: GPL-2.0
9 /dts-v1/;
10 #include <dt-bindings/clock/maxim,max77686.h>
11 #include <dt-bindings/gpio/gpio.h>
12 #include <dt-bindings/interrupt-controller/irq.h>
29 stdout-path = "serial2:115200n8";
32 vdd: fixed-regulator-vdd {
33 compatible = "regulator-fixed";
34 regulator-name = "vdd-supply";
35 regulator-min-microvolt = <1800000>;
[all …]
Ds5pv210-aries.dtsi1 // SPDX-License-Identifier: GPL-2.0
6 /dts-v1/;
7 #include <dt-bindings/gpio/gpio.h>
8 #include <dt-bindings/interrupt-controller/irq.h>
32 reserved-memory {
33 #address-cells = <1>;
34 #size-cells = <1>;
38 compatible = "shared-dma-pool";
39 no-map;
44 compatible = "shared-dma-pool";
[all …]
Dexynos4412-galaxy-s3.dtsi1 // SPDX-License-Identifier: GPL-2.0
9 /dts-v1/;
10 #include "exynos4412-midas.dtsi"
20 flen-gpios = <&gpj1 1 GPIO_ACTIVE_HIGH>;
21 enset-gpios = <&gpj1 2 GPIO_ACTIVE_HIGH>;
23 pinctrl-names = "default", "host", "isp";
24 pinctrl-0 = <&camera_flash_host>;
25 pinctrl-1 = <&camera_flash_host>;
26 pinctrl-2 = <&camera_flash_isp>;
28 flash-led {
[all …]
/kernel/linux/linux-6.6/arch/arm/boot/dts/samsung/
Dexynos5250-spring.dts1 // SPDX-License-Identifier: GPL-2.0
9 /dts-v1/;
10 #include <dt-bindings/clock/samsung,s2mps11.h>
11 #include <dt-bindings/gpio/gpio.h>
12 #include <dt-bindings/interrupt-controller/irq.h>
13 #include <dt-bindings/input/input.h>
19 chassis-type = "laptop";
33 stdout-path = "serial3:115200n8";
36 gpio-keys {
37 compatible = "gpio-keys";
[all …]
Dexynos5250-snow-common.dtsi1 // SPDX-License-Identifier: GPL-2.0
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/clock/maxim,max77686.h>
10 #include <dt-bindings/interrupt-controller/irq.h>
11 #include <dt-bindings/input/input.h>
12 #include <dt-bindings/sound/samsung-i2s.h>
30 stdout-path = "serial3:115200n8";
33 gpio-keys {
34 compatible = "gpio-keys";
35 pinctrl-names = "default";
[all …]
Dexynos5250-smdk5250.dts1 // SPDX-License-Identifier: GPL-2.0
9 /dts-v1/;
10 #include <dt-bindings/clock/maxim,max77686.h>
11 #include <dt-bindings/gpio/gpio.h>
12 #include <dt-bindings/interrupt-controller/irq.h>
31 stdout-path = "serial2:115200n8";
34 vdd: fixed-regulator-vdd {
35 compatible = "regulator-fixed";
36 regulator-name = "vdd-supply";
37 regulator-min-microvolt = <1800000>;
[all …]
Ds5pv210-aries.dtsi1 // SPDX-License-Identifier: GPL-2.0
6 /dts-v1/;
7 #include <dt-bindings/gpio/gpio.h>
8 #include <dt-bindings/interrupt-controller/irq.h>
32 reserved-memory {
33 #address-cells = <1>;
34 #size-cells = <1>;
38 compatible = "shared-dma-pool";
39 no-map;
44 compatible = "shared-dma-pool";
[all …]
/kernel/linux/linux-5.10/Documentation/i2c/
Dgpio-fault-injection.rst2 Linux I2C fault injection
5 The GPIO based I2C bus master driver can be configured to provide fault
6 injection capabilities. It is then meant to be connected to another I2C bus
7 which is driven by the I2C bus master driver under test. The GPIO fault
8 injection driver can create special states on the bus which the other I2C bus
12 'i2c-fault-injector' subdirectory in the Kernel debugfs filesystem, usually
14 driven I2C bus. Each subdirectory will contain files to trigger the fault
15 injection. They will be described now along with their intended use-cases.
21 -----
30 "sda"
[all …]
/kernel/linux/linux-6.6/Documentation/i2c/
Dgpio-fault-injection.rst2 Linux I2C fault injection
5 The GPIO based I2C bus master driver can be configured to provide fault
6 injection capabilities. It is then meant to be connected to another I2C bus
7 which is driven by the I2C bus master driver under test. The GPIO fault
8 injection driver can create special states on the bus which the other I2C bus
12 'i2c-fault-injector' subdirectory in the Kernel debugfs filesystem, usually
14 driven I2C bus. Each subdirectory will contain files to trigger the fault
15 injection. They will be described now along with their intended use-cases.
21 -----
30 "sda"
[all …]
/kernel/linux/linux-6.6/drivers/i2c/busses/
Di2c-gpio.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Bitbanging I2C bus driver using the GPIO API
9 #include <linux/delay.h>
11 #include <linux/i2c-algo-bit.h>
12 #include <linux/i2c.h>
16 #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
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
[all …]
/kernel/linux/linux-6.6/arch/riscv/boot/dts/starfive/
Djh7110-starfive-visionfive-2.dtsi1 // SPDX-License-Identifier: GPL-2.0 OR MIT
7 /dts-v1/;
9 #include "jh7110-pinfunc.h"
10 #include <dt-bindings/gpio/gpio.h>
26 stdout-path = "serial0:115200n8";
30 timebase-frequency = <4000000>;
38 gpio-restart {
39 compatible = "gpio-restart";
46 clock-frequency = <74250000>;
50 clock-frequency = <125000000>;
[all …]
/kernel/linux/linux-5.10/drivers/i2c/busses/
Di2c-gpio.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Bitbanging I2C bus driver using the GPIO API
9 #include <linux/delay.h>
11 #include <linux/i2c-algo-bit.h>
12 #include <linux/i2c.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
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
[all …]
/kernel/linux/linux-6.6/arch/arm/boot/dts/marvell/
Dkirkwood-km_common.dtsi1 // SPDX-License-Identifier: GPL-2.0
5 stdout-path = &uart0;
9 pinctrl: pin-controller@10000 {
10 pinctrl-0 = < &pmx_i2c_gpio_sda &pmx_i2c_gpio_scl >;
11 pinctrl-names = "default";
13 pmx_i2c_gpio_sda: pmx-gpio-sda {
17 pmx_i2c_gpio_scl: pmx-gpio-scl {
28 i2c {
29 compatible = "i2c-gpio";
30 gpios = < &gpio0 8 GPIO_ACTIVE_HIGH /* sda */
[all …]
/kernel/linux/linux-6.6/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
12 * @udelay: signal toggle delay. SCL frequency is (500 / udelay) kHz
15 * @sda_is_open_drain: SDA is configured as open drain, i.e. the pin
19 * @sda_is_output_only: SDA output drivers can't be turned off.
20 * This is for clients that can only read SDA/SCL.
21 * @sda_has_no_pullup: SDA is used in a non-compliant way and has no pull-up.
22 * Therefore disable open-drain.
26 * @scl_has_no_pullup: SCL is used in a non-compliant way and has no pull-up.
[all …]
/kernel/linux/linux-5.10/drivers/staging/sm750fb/
Dddk750_swi2c.c1 // SPDX-License-Identifier: GPL-2.0
5 * swi2c.c --- SM750/SM718 DDK
6 * This file contains the source code for I2C using software
16 * I2C Software Master Driver:
18 * Each i2c cycle is split into 4 sections. Each of these section marks
19 * a point in time where the SCL or SDA may be changed.
22 * +-------------+-------------+-------------+-------------+
29 * the SDA may only be changed in section 2. and section 4. The table
37 * ---------------+---+---+---+---+
38 * Tx Start SDA | | H | | L |
[all …]
/kernel/linux/linux-6.6/drivers/staging/sm750fb/
Dddk750_swi2c.c1 // SPDX-License-Identifier: GPL-2.0
5 * swi2c.c --- SM750/SM718 DDK
6 * This file contains the source code for I2C using software
16 * I2C Software Master Driver:
18 * Each i2c cycle is split into 4 sections. Each of these section marks
19 * a point in time where the SCL or SDA may be changed.
22 * +-------------+-------------+-------------+-------------+
29 * the SDA may only be changed in section 2. and section 4. The table
37 * ---------------+---+---+---+---+
38 * Tx Start SDA | | H | | L |
[all …]

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