microchip,xec-pwmbbled
Vendor: Microchip Technology Inc.
Note
An implementation of a driver matching this compatible is available in drivers/pwm/pwm_mchp_xec_bbled.c.
Description
Microchip XEC PWM using BBLED hardware
Properties
Properties not inherited from the base binding file.
Name |
Type |
Details |
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Array of pairs of GIRQ number and bit position
This property is required. |
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BBLED PCR register index and bit position
This property is required. |
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Clock source selection: 32 KHz is available in deep sleep.
- PWM_BBLED_CLK_AHB: Clock source is the PLL based AHB clock
- PWM_BBLED_CLK_32K: Clock source is the 32KHz domain
This property is required. Legal values: |
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Pin configuration/s for the first state. Content is specific to the
selected pin controller driver implementation.
This property is required. |
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Names for the provided states. The number of names needs to match the
number of states.
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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BBLED has two clock inputs.
- Main system clock (48MHz)
- 32KHz Core clock (32.768KHz)
When BBLED enter into Suspend state, 48MHz clock will be switched off by
PCR(Power, Clock and Reset) block. But 32KHz Core clock will be available to BBLED.
There may be a product requirement, either to blink (or) not blink LED in Suspend state.
Property "enable-low-power-32k" shall be used along with 32KHz clock to blink (or) not blink
the LED in Suspend state.
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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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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 “microchip,xec-pwmbbled” 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, flags