fsl,imx27-pwm
Vendor: Freescale Semiconductor
Note
An implementation of a driver matching this compatible is available in drivers/pwm/pwm_imx.c.
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 |
|---|---|---|
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Set the PWM prescale between 0 and 4096
This property is required. |
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Number of items to expect in a pwm specifier
This property is required. Constant value: |
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Pin configuration/s for the first state. Content is specific to the
selected pin controller driver implementation.
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Pin configuration/s for the second state. See pinctrl-0.
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Pin configuration/s for the third state. See pinctrl-0.
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Pin configuration/s for the fourth state. See pinctrl-0.
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Pin configuration/s for the fifth state. See pinctrl-0.
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Names for the provided states. The number of names needs to match the
number of states.
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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))>;
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Deprecated properties not inherited from the base binding file.
(None)
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 “fsl,imx27-pwm” compatible.
Name |
Type |
Details |
|---|---|---|
|
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register space
This property is required. See Important properties for more information. |
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interrupts for device
This property is required. See Important properties for more information. |
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indicates the operational status of a device
Legal values: See Important properties for more information. |
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compatible strings
This property is required. See Important properties for more information. |
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name of each register space
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extended interrupt specifier for device
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name of each interrupt
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phandle to interrupt controller node
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Human readable string describing the device (used as device_get_binding() argument)
See Important properties for more information. This property is deprecated. |
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Clock gate information
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name of each clock
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number of address cells in reg property
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number of size cells in reg property
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DMA channels specifiers
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Provided names of DMA channel specifiers
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IO channels specifiers
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Provided names of IO channel specifiers
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mailbox / IPM channels specifiers
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Provided names of mailbox / IPM channel specifiers
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Power domain specifiers
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Provided names of power domain specifiers
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Number of cells in power-domains property
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Do not initialize device automatically on boot. Device should be manually
initialized using device_init().
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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.
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Automatically configure the device for runtime power management after the
init function runs.
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List of power states that will disable this device power.
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Specifier cell names
pwm cells: channel, period