ti,cc13xx-cc26xx-pinctrl

Vendor: Texas Instruments

Note

An implementation of a driver matching this compatible is available in drivers/pinctrl/pinctrl_cc13xx_cc26xx.c.

Description

TI SimpleLink CC13xx / CC26xx pinctrl node.

Device pin configuration should be placed in the child nodes of this node.
Populate the 'pinmux' field with a pair consisting of a pin number and its IO
functions.

The node has the 'pinctrl' node label set in your SoC's devicetree,
so you can modify it like this:

  &pinctrl {
          /* your modifications go here */
  };

All device pin configurations should be placed in child nodes of the
'pinctrl' node, as in the i2c0 example shown at the end.

Here is a list of
supported standard pin properties:

- bias-disable: Disable pull-up/down.
- bias-pull-down: Enable pull-down resistor.
- bias-pull-up: Enable pull-up resistor.
- drive-open-drain: Output driver is open-drain.
- drive-open-drain: Output driver is open-source.
- drive-strength: Minimum current that can be sourced from the pin.
- input-enable: enable input.
- input-schmitt-enable: enable input schmitt circuit.
- ti,input-edge-detect: enable and configure edge detection interrupts

An example for CC13XX family, include the chip level pinctrl
DTSI file in the board level DTS:

  #include <dt-bindings/pinctrl/cc13xx_cc26xx-pinctrl.h>

We want to configure the I2C pins to open drain, with pullup enabled
and input enabled.

To change a pin's pinctrl default properties add a reference to the
pin in the board's DTS file and set the properties.

  &i2c0 {
    pinctrl-0 = <&i2c0_scl_default &i2c0_sda_default>;
    pinctrl-1 = <&i2c0_scl_sleep &i2c0_sda_sleep>;
    pinctrl-names = "default", "sleep";
  }

The i2c0_scl_default corresponds to the following in the board dts file:

  &pinctrl {
    i2c0_scl_default: i2c0_scl_default {
      pinmux = <4 IOC_PORT_MCU_I2C_MSSCL>;
      bias-pull-up;
      drive-open-drain;
      input-enable;
    };
  };

To configure an input pin with edge detection (e.g. to count pulses):

  &pinctrl {
    gpt0_edge_counter: gpt0_edge_counter {
      pinmux = <15 IOC_PORT_MCU_PORT_EVENT0>;
      input-enable;
      bias-pull-up;
      ti,input-edge-detect = <IOC_RISING_EDGE>;
    };
  };

To configure an output pin (e.g. for PWM output):

  &pinctrl {
    gpt0_pwm: gpt0_pwm {
      pinmux = <16 IOC_PORT_MCU_PORT_EVENT1>;
      bias-disable;
      drive-strength = <8>; /* in mA */
    };
  };

Properties

Top level properties

These property descriptions apply to “ti,cc13xx-cc26xx-pinctrl” nodes themselves. This page also describes child node properties in the following sections.

Node specific properties

Properties not inherited from the base binding file.

(None)

Deprecated node specific properties

Deprecated properties not inherited from the base binding file.

(None)

Base properties

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 “ti,cc13xx-cc26xx-pinctrl” compatible.

Name	Type	Details
reg	array	register space This property is required. See Important properties for more information.
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	array	interrupts for device See Important properties for more information.
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	Human readable string describing the device (used as device_get_binding() argument) See Important properties for more information. This property is deprecated.
clocks	phandle-array	Clock gate information
clock-names	string-array	name of each clock
#address-cells	int	number of address cells in reg property
#size-cells	int	number of size cells in reg property
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.

Child node properties

Name	Type	Details
pinmux	array	CC13XX/CC26XX pin's configuration (IO pin, IO function). This property is required.
drive-strength	int	The drive strength controls the minimum output driver strength of an I/O pin configured as an output. 2: min 2 mA (SoC default) 4: min 4 mA 8: min 8 mA for double drive strength IOs, min 4 mA for normal IOs Default value: 2 Legal values: 2, 4, 8
ti,input-edge-detect	int	Enables or disables the edge detection interrupt and configures it: IOC_NO_EDGE: No edge detection (SoC default) IOC_FALLING_EDGE: Edge detection on falling edge IOC_RISING_EDGE: Edge detection on rising edge IOC_BOTH_EDGES: Edge detection on both edges
bias-disable	boolean	disable any pin bias
bias-pull-up	boolean	enable pull-up resistor
bias-pull-down	boolean	enable pull-down resistor
drive-open-drain	boolean	drive with open drain (hardware AND)
drive-open-source	boolean	drive with open source (hardware OR)
input-enable	boolean	enable input on pin (e.g. enable an input buffer, no effect on output)
input-schmitt-enable	boolean	enable schmitt-trigger mode