quicklogic,eos-s3-pinctrl

Vendor: QuickLogic Corp.

Note

An implementation of a driver matching this compatible is available in drivers/pinctrl/pinctrl_eos_s3.c.

Description

Quicklogic EOS S3 IO MUX binding covers the 46 IOMUX_PAD_x_CTRL registers
that can be used to set the direction and the function of a pad.

Device pin configuration should be placed in the child nodes of this node.
Populate the 'pinmux' field with IO function and pin number.

For example, setting pins 44 and 45 for use as UART would look like this:

  #include <dt-bindings/pinctrl/quicklogic-eos-s3-pinctrl.h>

  &pinctrl {
    uart0_rx_default: uart0_rx_default {
      pinmux = <UART_RX_PAD45>;
      input-enable;
    };
    uart0_tx_default: uart0_tx_default {
      pinmux = <UART_TX_PAD44>;
      output-enable;
    };
  };

Properties

Top level properties

These property descriptions apply to “quicklogic,eos-s3-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 “quicklogic,eos-s3-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	Quicklogic EOS S3 pin's configuration (pin, IO function). This property is required.
slew-rate	string	The default value "slow" matches the power-on reset value. Default value: slow Legal values: 'slow', 'fast'
quicklogic,control-selection	string	Control selection for IO output. It's either controlled from registers of the A0 always-on domain, fabric-controlled for signaling with FPGA, or other-controller for bidirectional signals. The default value "a0registers" matches the power-on reset value. Default value: a0registers Legal values: 'a0registers', 'others', 'fabric'
bias-high-impedance	boolean	high impedance mode ("third-state", "floating")
bias-pull-up	boolean	enable pull-up resistor
bias-pull-down	boolean	enable pull-down resistor
drive-strength	int	maximum sink or source current in mA
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
output-enable	boolean	enable output on a pin without actively driving it (e.g. enable an output buffer)