[PATCH] i2c: remove deprecated callbacks

From: WANG Cong
Date: Thu Sep 01 2011 - 00:41:31 EST


i2c_driver.attach_adapter and i2c_driver.detach_adapter are deprecated
and scheduled to be removed in Sep 2011.

Cc: Jean Delvare <khali@xxxxxxxxxxxx>
Signed-off-by: WANG Cong <xiyou.wangcong@xxxxxxxxx>

---
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index c4a6e14..89a9695 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -486,15 +486,6 @@ Files: include/linux/netfilter_ipv4/ipt_addrtype.h

----------------------------

-What: i2c_driver.attach_adapter
- i2c_driver.detach_adapter
-When: September 2011
-Why: These legacy callbacks should no longer be used as i2c-core offers
- a variety of preferable alternative ways to instantiate I2C devices.
-Who: Jean Delvare <khali@xxxxxxxxxxxx>
-
-----------------------------
-
What: Support for UVCIOC_CTRL_ADD in the uvcvideo driver
When: 3.2
Why: The information passed to the driver by this ioctl is now queried
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 131079a..c833c53 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -44,8 +44,8 @@


/* core_lock protects i2c_adapter_idr, and guarantees
- that device detection, deletion of detected devices, and attach_adapter
- and detach_adapter calls are serialized */
+ that device detection, deletion of detected devices
+ calls are serialized */
static DEFINE_MUTEX(core_lock);
static DEFINE_IDR(i2c_adapter_idr);

@@ -795,15 +795,6 @@ static int i2c_do_add_adapter(struct i2c_driver *driver,
/* Detect supported devices on that bus, and instantiate them */
i2c_detect(adap, driver);

- /* Let legacy drivers scan this bus for matching devices */
- if (driver->attach_adapter) {
- dev_warn(&adap->dev, "%s: attach_adapter method is deprecated\n",
- driver->driver.name);
- dev_warn(&adap->dev, "Please use another way to instantiate "
- "your i2c_client\n");
- /* We ignore the return code; if it fails, too bad */
- driver->attach_adapter(adap);
- }
return 0;
}

@@ -975,7 +966,6 @@ static int i2c_do_del_adapter(struct i2c_driver *driver,
struct i2c_adapter *adapter)
{
struct i2c_client *client, *_n;
- int res;

/* Remove the devices we created ourselves as the result of hardware
* probing (using a driver's detect method) */
@@ -988,15 +978,7 @@ static int i2c_do_del_adapter(struct i2c_driver *driver,
}
}

- if (!driver->detach_adapter)
- return 0;
- dev_warn(&adapter->dev, "%s: detach_adapter method is deprecated\n",
- driver->driver.name);
- res = driver->detach_adapter(adapter);
- if (res)
- dev_err(&adapter->dev, "detach_adapter failed (%d) "
- "for driver [%s]\n", res, driver->driver.name);
- return res;
+ return 0;
}

static int __unregister_client(struct device *dev, void *dummy)
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index a6c652e..25c2c87 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -142,13 +142,6 @@ extern s32 i2c_smbus_write_i2c_block_data(const struct i2c_client *client,
struct i2c_driver {
unsigned int class;

- /* Notifies the driver that a new bus has appeared or is about to be
- * removed. You should avoid using this, it will be removed in a
- * near future.
- */
- int (*attach_adapter)(struct i2c_adapter *) __deprecated;
- int (*detach_adapter)(struct i2c_adapter *) __deprecated;
-
/* Standard driver model interfaces */
int (*probe)(struct i2c_client *, const struct i2c_device_id *);
int (*remove)(struct i2c_client *);
--
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