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Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Browse Source 
Pull i2c updates from Wolfram Sang:

 - removal of an old API where all in-kernel users have been converted
   as of this merge window.

 - a kdoc fix

 - a new helper that will make dependencies for the next API conversion
   a tad easier

* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: add helper to check if a client has a driver attached
  i2c: fix header file kernel-doc warning
  i2c: remove i2c_new_dummy() API
This commit is contained in:
Linus Torvalds 2019-12-13 14:45:40 -08:00
commit 3b2ee614cb
2 changed files with 6 additions and 29 deletions
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23
drivers/i2c/i2c-core-base.c
View File

@ -896,29 +896,6 @@ struct i2c_client *i2c_new_dummy_device(struct i2c_adapter *adapter, u16 address
}
EXPORT_SYMBOL_GPL(i2c_new_dummy_device);
/**
* i2c_new_dummy - return a new i2c device bound to a dummy driver
* @adapter: the adapter managing the device
* @address: seven bit address to be used
* Context: can sleep
*
* This deprecated function has the same functionality as @i2c_new_dummy_device,
* it just returns NULL instead of an ERR_PTR in case of an error for
* compatibility with current I2C API. It will be removed once all users are
* converted.
*
* This returns the new i2c client, which should be saved for later use with
* i2c_unregister_device(); or NULL to indicate an error.
*/
struct i2c_client *i2c_new_dummy(struct i2c_adapter *adapter, u16 address)
{
struct i2c_client *ret;
ret = i2c_new_dummy_device(adapter, address);
return IS_ERR(ret) ? NULL : ret;
}
EXPORT_SYMBOL_GPL(i2c_new_dummy);
struct i2c_dummy_devres {
struct i2c_client *client;
};

12
include/linux/i2c.h
View File

@ -300,6 +300,7 @@ struct i2c_driver {
* generic enough to hide second-sourcing and compatible revisions.
* @adapter: manages the bus segment hosting this I2C device
* @dev: Driver model device node for the slave.
* @init_irq: IRQ that was set at initialization
* @irq: indicates the IRQ generated by this device (if any)
* @detected: member of an i2c_driver.clients list or i2c-core's
* userspace_devices list
@ -466,12 +467,6 @@ i2c_new_probed_device(struct i2c_adapter *adap,
/* Common custom probe functions */
extern int i2c_probe_func_quick_read(struct i2c_adapter *adap, unsigned short addr);
/* For devices that use several addresses, use i2c_new_dummy() to make
* client handles for the extra addresses.
*/
extern struct i2c_client *
i2c_new_dummy(struct i2c_adapter *adap, u16 address);
extern struct i2c_client *
i2c_new_dummy_device(struct i2c_adapter *adapter, u16 address);
@ -856,6 +851,11 @@ extern void i2c_del_driver(struct i2c_driver *driver);
#define i2c_add_driver(driver) \
i2c_register_driver(THIS_MODULE, driver)
static inline bool i2c_client_has_driver(struct i2c_client *client)
{
return !IS_ERR_OR_NULL(client) && client->dev.driver;
}
/* call the i2c_client->command() of all attached clients with
* the given arguments */
extern void i2c_clients_command(struct i2c_adapter *adap,