#include <linux/module.h>
#include <linux/pwm.h>
#include <linux/radix-tree.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
Go to the source code of this file.
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| int | pwm_set_chip_data (struct pwm_device *pwm, void *data) |
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| void * | pwm_get_chip_data (struct pwm_device *pwm) |
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| int | pwmchip_add (struct pwm_chip *chip) |
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| | EXPORT_SYMBOL_GPL (pwmchip_add) |
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| int | pwmchip_remove (struct pwm_chip *chip) |
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| | EXPORT_SYMBOL_GPL (pwmchip_remove) |
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| struct pwm_device * | pwm_request (int pwm, const char *label) |
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| | EXPORT_SYMBOL_GPL (pwm_request) |
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| struct pwm_device * | pwm_request_from_chip (struct pwm_chip *chip, unsigned int index, const char *label) |
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| | EXPORT_SYMBOL_GPL (pwm_request_from_chip) |
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| void | pwm_free (struct pwm_device *pwm) |
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| | EXPORT_SYMBOL_GPL (pwm_free) |
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| int | pwm_config (struct pwm_device *pwm, int duty_ns, int period_ns) |
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| | EXPORT_SYMBOL_GPL (pwm_config) |
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| int | pwm_set_polarity (struct pwm_device *pwm, enum pwm_polarity polarity) |
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| | EXPORT_SYMBOL_GPL (pwm_set_polarity) |
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| int | pwm_enable (struct pwm_device *pwm) |
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| | EXPORT_SYMBOL_GPL (pwm_enable) |
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| void | pwm_disable (struct pwm_device *pwm) |
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| | EXPORT_SYMBOL_GPL (pwm_disable) |
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| void __init | pwm_add_table (struct pwm_lookup *table, size_t num) |
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| struct pwm_device * | pwm_get (struct device *dev, const char *con_id) |
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| | EXPORT_SYMBOL_GPL (pwm_get) |
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| void | pwm_put (struct pwm_device *pwm) |
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| | EXPORT_SYMBOL_GPL (pwm_put) |
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| struct pwm_device * | devm_pwm_get (struct device *dev, const char *con_id) |
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| | EXPORT_SYMBOL_GPL (devm_pwm_get) |
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| void | devm_pwm_put (struct device *dev, struct pwm_device *pwm) |
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| | EXPORT_SYMBOL_GPL (devm_pwm_put) |
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devm_pwm_get() - resource managed pwm_get() : device for PWM consumer : consumer name
This function performs like pwm_get() but the acquired PWM device will automatically be released on driver detach.
Definition at line 662 of file core.c.
devm_pwm_put() - resource managed pwm_put() : device for PWM consumer : PWM device
Release a PWM previously allocated using devm_pwm_get(). Calling this function is usually not needed because devm-allocated resources are automatically released on driver detach.
Definition at line 701 of file core.c.
pwm_add_table() - register PWM device consumers : array of consumers to register : number of consumers in table
Definition at line 525 of file core.c.
pwm_config() - change a PWM device configuration : PWM device : "on" time (in nanoseconds) : duration (in nanoseconds) of one cycle
Definition at line 372 of file core.c.
pwm_get() - look up and request a PWM device : device for PWM consumer : consumer name
Lookup is first attempted using DT. If the device was not instantiated from a device tree, a PWM chip and a relative index is looked up via a table supplied by board setup code (see pwm_add_table()).
Once a PWM chip has been found the specified PWM device will be requested and is ready to be used.
Definition at line 549 of file core.c.
pwm_request() - request a PWM device : global PWM device index : PWM device label
This function is deprecated, use pwm_get() instead.
Definition at line 295 of file core.c.
pwm_request_from_chip() - request a PWM device relative to a PWM chip : PWM chip : per-chip index of the PWM to request : a literal description string of this PWM
Returns the PWM at the given index of the given PWM chip. A negative error code is returned if the index is not valid for the specified PWM chip or if the PWM device cannot be requested.
Definition at line 332 of file core.c.
pwm_set_polarity() - configure the polarity of a PWM signal : PWM device : new polarity of the PWM signal
Note that the polarity cannot be configured while the PWM device is enabled
Definition at line 388 of file core.c.
pwmchip_add() - register a new PWM chip : the PWM chip to add
Register a new PWM chip. If chip->base < 0 then a dynamically assigned base will be used.
Definition at line 202 of file core.c.
pwmchip_remove() - remove a PWM chip : the PWM chip to remove
Removes a PWM chip. This function may return busy if the PWM chip provides a PWM device that is still requested.
Definition at line 259 of file core.c.
1.8.2