fsl,imx27-pwm

Vendor: Freescale Semiconductor

Description

This driver supports both i.MX6SX and i.MX7D PWM.
The compatible string is named "imx27" because the hardware module is the
same module present starting from imx27 CPUs and this driver can potentially
support other CPUs with imx27 module. This is also the same string used
in the Linux kernel.

Properties

Properties not inherited from the base binding file.

Name

Type

Details

#pwm-cells

int

Number of items to expect in a pwm specifier

This property is required.

Constant value: 2

pinctrl-0

phandles

Pin configuration/s for the first state. Content is specific to the
selected pin controller driver implementation.

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.

pinctrl-names

string-array

Names for the provided states. The number of names needs to match the
number of states.

rdc

int

Set the RDC permission for specified peripheral: Resource Domain Controller (RDC)
supports flexible configuration on IP’s access permission, each individual IP can,
for example, be configured as A-core only or M-core only. This property uses some
macros defined in 'include/zephyr/dt-bindings/rdc/imx_rdc.h' to configure current
peripheral's access permission.
For example to allow both A53 and M7 Core to have read/write permission to current
peripheral:
rdc = <(RDC_DOMAIN_PERM(A53_DOMAIN_ID, RDC_DOMAIN_PERM_RW)|\
        RDC_DOMAIN_PERM(M7_DOMAIN_ID, RDC_DOMAIN_PERM_RW))>;

prescaler

int

Set the PWM prescale between 0 and 4096

This property is required.

Specifier cell names

  • pwm cells: channel, period