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authorLinus Torvalds <torvalds@linux-foundation.org>2019-12-13 14:45:40 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-12-13 14:45:40 -0800
commit3b2ee614cb4accb75080f00586bd762b0eab219c (patch)
tree27a2e4ce89add6a42d4442f9f3c32eff4e33d953
parent6bd2c87aaffe0b58ce65233fe922b9eb5f7d9a85 (diff)
parent8c9312a925ad859daefd0f443ef3b6dc7157d881 (diff)
downloadlinux-stericsson-3b2ee614cb4accb75080f00586bd762b0eab219c.tar.gz
Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
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
-rw-r--r--drivers/i2c/i2c-core-base.c23
-rw-r--r--include/linux/i2c.h12
2 files changed, 6 insertions, 29 deletions
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 9333c865d4a9..9f8dcd3f8385 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -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;
};
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index d2f786706657..582ef05ec07e 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -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,