infineon,cat1-i2c

Note

An implementation of a driver matching this compatible is available in drivers/i2c/i2c_ifx_cat1.c.

Description

These nodes are “i2c” bus nodes.

Infineon CAT1 I2C driver

This driver configures the SCB as an I2C device.

Example devicetree configuration with vl53l0x Time-of-Flight (ToF)
ranging sensor connected on the bus:

i2c3: &scb3 {
    compatible = "infineon,cat1-i2c";
    status = "okay";

    #address-cells = <1>;
    #size-cells = <0>;

    pinctrl-0 = <&p6_0_scb3_i2c_scl &p6_1_scb3_i2c_sda>;
    pinctrl-names = "default";

    vl53l0x@29 {
      compatible = "st,vl53l0x";
      reg = <0x29>;
    };
};

The pinctrl nodes need to be configured as open-drain and
input-enable:

&p6_0_scb3_i2c_scl {
  drive-open-drain;
  input-enable;
};

&p6_1_scb3_i2c_sda {
  drive-open-drain;
  input-enable;
};

Properties

Properties not inherited from the base binding file.

Name	Type	Details
`pinctrl-0`	`phandles`	PORT pin configuration for SCL, SDA signals. We expect that the phandles will reference pinctrl nodes. These nodes will have a nodelabel that matches the Infineon SoC Pinctrl defines and have following format: p<port>_<pin>_<peripheral inst>_<signal>. Examples: pinctrl-0 = <&p6_0_scb3_i2c_scl &p6_1_scb3_i2c_sda>; This property is required.
`pinctrl-names`	`string-array`	Names for the provided states. The number of names needs to match the number of states. This property is required.
`clock-frequency`	`int`	Frequency that the I2C bus runs
`sq-size`	`int`	Size of the submission queue for blocking requests Default value: `4`
`cq-size`	`int`	Size of the completion queue for blocking requests Default value: `4`
`pinctrl-1`	`phandles`	Pin configuration/s for the second state. See pinctrl-0.
`pinctrl-2`	`phandles`	Pin configuration/s for the third state. See pinctrl-0.
`pinctrl-3`	`phandles`	Pin configuration/s for the fourth state. See pinctrl-0.
`pinctrl-4`	`phandles`	Pin configuration/s for the fifth state. See pinctrl-0.

Properties inherited from the base binding file, which defines common properties that may be set on many nodes. Not all of these may apply to the “infineon,cat1-i2c” compatible.

Name	Type	Details
`reg`	`array`	register space This property is required. See Important properties for more information.
`interrupts`	`array`	interrupts for device This property is required. See Important properties for more information.
`#address-cells`	`int`	number of address cells in reg property This property is required. Constant value: `1`
`#size-cells`	`int`	number of size cells in reg property This property is required.
`status`	`string`	indicates the operational status of a device Legal values: `'ok'`, `'okay'`, `'disabled'`, `'reserved'`, `'fail'`, `'fail-sss'` See Important properties for more information.
`compatible`	`string-array`	compatible strings This property is required. See Important properties for more information.
`reg-names`	`string-array`	name of each register space
`interrupts-extended`	`compound`	extended interrupt specifier for device
`interrupt-names`	`string-array`	name of each interrupt
`interrupt-parent`	`phandle`	phandle to interrupt controller node
`label`	`string`	No description provided for this label See Important properties for more information.
`clocks`	`phandle-array`	Clock gate information
`clock-names`	`string-array`	name of each clock
`dmas`	`phandle-array`	DMA channels specifiers
`dma-names`	`string-array`	Provided names of DMA channel specifiers
`io-channels`	`phandle-array`	IO channels specifiers
`io-channel-names`	`string-array`	Provided names of IO channel specifiers
`mboxes`	`phandle-array`	mailbox / IPM channels specifiers
`mbox-names`	`string-array`	Provided names of mailbox / IPM channel specifiers
`power-domains`	`phandle-array`	Power domain specifiers
`power-domain-names`	`string-array`	Provided names of power domain specifiers
`#power-domain-cells`	`int`	Number of cells in power-domains property
`zephyr,deferred-init`	`boolean`	Do not initialize device automatically on boot. Device should be manually initialized using device_init().
`wakeup-source`	`boolean`	Property to identify that a device can be used as wake up source. When this property is provided a specific flag is set into the device that tells the system that the device is capable of wake up the system. Wake up capable devices are disabled (interruptions will not wake up the system) by default but they can be enabled at runtime if necessary.
`zephyr,pm-device-runtime-auto`	`boolean`	Automatically configure the device for runtime power management after the init function runs.
`zephyr,disabling-power-states`	`phandles`	List of power states that will disable this device power.