Update extcon for 4.8

Detailed description for patchset:
 1. Update the extcon-gpio.c driver
 - Use PM wakeirq APIs and support to check the state of external connector
   when wake-up from suspend state if the interrupt of external connector is
   not used as wakeup source.
 - Support for ACPI gpio interface
 
 2. Remove deprecated extcon APIs using the legacy cable name
 - The extcon framework handle the external connector only by unique id
   instead of legacy cable name to prevent the problem.
 - Removed functions
   : extcon_get_cable_state()
   : extcon_set_cable_state()
   : extcon_register_interest()
   : extcon_unregister_interest()
 - It has the dependency on the axp288_charger.c driver.
   So, this pull request includes the 'ib-extcon-powersupply-4.8'
   immutable branch to protect the merge conflict.
 
 3. Support the resource-managed function for extcon_register_notifier
 - Add the devm_extcon_register/unregister_notifier() funticon to handle
   the resource automatically by resource managed functions and split out
   the resource-managed function from extcon core to seprate file(devres.c).
 
 4. Supprot the suspend/resume for extcon-adc-jack.c driver
 - Add the support the suspend/resume function to use extcon-adc-jack.c
   as wakeup source.
 
 5. Fix the minor issue
 - Check the return value of find_cable_index_by_id()
 - Move the struct extcon_cable to extcon core from header file
   because it should be only handled on extcon core.
 - Add the missing of_node_put() after calling of_parse_phandle()
   to decrement the reference count.
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Merge tag 'extcon-next-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-testing

Chanwoo writes:

Update
extcot://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon.git
tags/extcon-next-for-4.8
n for 4.8

Detailed description for patchset:
1. Update the extcon-gpio.c driver
- Use PM wakeirq APIs and support to check the state of external connector
  when wake-up from suspend state if the interrupt of external connector is
  not used as wakeup source.
- Support for ACPI gpio interface

2. Remove deprecated extcon APIs using the legacy cable name
- The extcon framework handle the external connector only by unique id
  instead of legacy cable name to prevent the problem.
- Removed functions
  : extcon_get_cable_state()
  : extcon_set_cable_state()
  : extcon_register_interest()
  : extcon_unregister_interest()
- It has the dependency on the axp288_charger.c driver.
  So, this pull request includes the 'ib-extcon-powersupply-4.8'
  immutable branch to protect the merge conflict.

3. Support the resource-managed function for extcon_register_notifier
- Add the devm_extcon_register/unregister_notifier() funticon to handle
  the resource automatically by resource managed functions and split out
  the resource-managed function from extcon core to seprate file(devres.c).

4. Supprot the suspend/resume for extcon-adc-jack.c driver
- Add the support the suspend/resume function to use extcon-adc-jack.c
  as wakeup source.

5. Fix the minor issue
- Check the return value of find_cable_index_by_id()
- Move the struct extcon_cable to extcon core from header file
  because it should be only handled on extcon core.
- Add the missing of_node_put() after calling of_parse_phandle()
  to decrement the reference count.
This commit is contained in:
Greg Kroah-Hartman 2016-07-14 12:01:23 +09:00
commit 7f96a82fde
9 changed files with 416 additions and 410 deletions

View file

@ -126,42 +126,6 @@ struct extcon_dev {
struct device_attribute *d_attrs_muex;
};
/**
* struct extcon_cable - An internal data for each cable of extcon device.
* @edev: The extcon device
* @cable_index: Index of this cable in the edev
* @attr_g: Attribute group for the cable
* @attr_name: "name" sysfs entry
* @attr_state: "state" sysfs entry
* @attrs: Array pointing to attr_name and attr_state for attr_g
*/
struct extcon_cable {
struct extcon_dev *edev;
int cable_index;
struct attribute_group attr_g;
struct device_attribute attr_name;
struct device_attribute attr_state;
struct attribute *attrs[3]; /* to be fed to attr_g.attrs */
};
/**
* struct extcon_specific_cable_nb - An internal data for
* extcon_register_interest().
* @user_nb: user provided notifier block for events from
* a specific cable.
* @cable_index: the target cable.
* @edev: the target extcon device.
* @previous_value: the saved previous event value.
*/
struct extcon_specific_cable_nb {
struct notifier_block *user_nb;
int cable_index;
struct extcon_dev *edev;
unsigned long previous_value;
};
#if IS_ENABLED(CONFIG_EXTCON)
/*
@ -201,29 +165,12 @@ extern int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state);
/*
* get/set_cable_state access each bit of the 32b encoded state value.
* They are used to access the status of each cable based on the cable_name.
* They are used to access the status of each cable based on the cable id.
*/
extern int extcon_get_cable_state_(struct extcon_dev *edev, unsigned int id);
extern int extcon_set_cable_state_(struct extcon_dev *edev, unsigned int id,
bool cable_state);
extern int extcon_get_cable_state(struct extcon_dev *edev,
const char *cable_name);
extern int extcon_set_cable_state(struct extcon_dev *edev,
const char *cable_name, bool cable_state);
/*
* Following APIs are for notifiees (those who want to be notified)
* to register a callback for events from a specific cable of the extcon.
* Notifiees are the connected device drivers wanting to get notified by
* a specific external port of a connection device.
*/
extern int extcon_register_interest(struct extcon_specific_cable_nb *obj,
const char *extcon_name,
const char *cable_name,
struct notifier_block *nb);
extern int extcon_unregister_interest(struct extcon_specific_cable_nb *nb);
/*
* Following APIs are to monitor every action of a notifier.
* Registrar gets notified for every external port of a connection device.
@ -235,6 +182,12 @@ extern int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,
struct notifier_block *nb);
extern int extcon_unregister_notifier(struct extcon_dev *edev, unsigned int id,
struct notifier_block *nb);
extern int devm_extcon_register_notifier(struct device *dev,
struct extcon_dev *edev, unsigned int id,
struct notifier_block *nb);
extern void devm_extcon_unregister_notifier(struct device *dev,
struct extcon_dev *edev, unsigned int id,
struct notifier_block *nb);
/*
* Following API get the extcon device from devicetree.
@ -246,6 +199,7 @@ extern struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev,
/* Following API to get information of extcon device */
extern const char *extcon_get_edev_name(struct extcon_dev *edev);
#else /* CONFIG_EXTCON */
static inline int extcon_dev_register(struct extcon_dev *edev)
{
@ -306,18 +260,6 @@ static inline int extcon_set_cable_state_(struct extcon_dev *edev,
return 0;
}
static inline int extcon_get_cable_state(struct extcon_dev *edev,
const char *cable_name)
{
return 0;
}
static inline int extcon_set_cable_state(struct extcon_dev *edev,
const char *cable_name, int state)
{
return 0;
}
static inline struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name)
{
return NULL;
@ -337,19 +279,16 @@ static inline int extcon_unregister_notifier(struct extcon_dev *edev,
return 0;
}
static inline int extcon_register_interest(struct extcon_specific_cable_nb *obj,
const char *extcon_name,
const char *cable_name,
struct notifier_block *nb)
static inline int devm_extcon_register_notifier(struct device *dev,
struct extcon_dev *edev, unsigned int id,
struct notifier_block *nb)
{
return 0;
return -ENOSYS;
}
static inline int extcon_unregister_interest(struct extcon_specific_cable_nb
*obj)
{
return 0;
}
static inline void devm_extcon_unregister_notifier(struct device *dev,
struct extcon_dev *edev, unsigned int id,
struct notifier_block *nb) { }
static inline struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev,
int index)
@ -357,4 +296,28 @@ static inline struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev,
return ERR_PTR(-ENODEV);
}
#endif /* CONFIG_EXTCON */
/*
* Following structure and API are deprecated. EXTCON remains the function
* definition to prevent the build break.
*/
struct extcon_specific_cable_nb {
struct notifier_block *user_nb;
int cable_index;
struct extcon_dev *edev;
unsigned long previous_value;
};
static inline int extcon_register_interest(struct extcon_specific_cable_nb *obj,
const char *extcon_name, const char *cable_name,
struct notifier_block *nb)
{
return -EINVAL;
}
static inline int extcon_unregister_interest(struct extcon_specific_cable_nb
*obj)
{
return -EINVAL;
}
#endif /* __LINUX_EXTCON_H__ */

View file

@ -53,6 +53,7 @@ struct adc_jack_cond {
* milli-seconds after the interrupt occurs. You may
* describe such delays with @handling_delay_ms, which
* is rounded-off by jiffies.
* @wakeup_source: flag to wake up the system for extcon events.
*/
struct adc_jack_pdata {
const char *name;
@ -65,6 +66,7 @@ struct adc_jack_pdata {
unsigned long irq_flags;
unsigned long handling_delay_ms; /* in ms */
bool wakeup_source;
};
#endif /* _EXTCON_ADC_JACK_H */