diff options
| -rw-r--r-- | Documentation/feature-removal-schedule.txt | 14 | ||||
| -rw-r--r-- | drivers/i2c/busses/i2c-isa.c | 18 | ||||
| -rw-r--r-- | drivers/i2c/i2c-core.c | 34 | ||||
| -rw-r--r-- | include/linux/i2c.h | 3 |
4 files changed, 5 insertions, 64 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 5c88ba1ea262..c4b3bdad15d8 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -190,18 +190,10 @@ Who: Jean Delvare <khali@linux-fr.org> --------------------------- -What: i2c_adapter.dev - i2c_adapter.list +What: i2c_adapter.list When: July 2007 -Why: Superfluous, given i2c_adapter.class_dev: - * The "dev" was a stand-in for the physical device node that legacy - drivers would not have; but now it's almost always present. Any - remaining legacy drivers must upgrade (they now trigger warnings). - * The "list" duplicates class device children. - The delay in removing this is so upgraded lm_sensors and libsensors - can get deployed. (Removal causes minor changes in the sysfs layout, - notably the location of the adapter type name and parenting the i2c - client hardware directly from their controller.) +Why: Superfluous, this list duplicates the one maintained by the driver + core. Who: Jean Delvare <khali@linux-fr.org>, David Brownell <dbrownell@users.sourceforge.net> diff --git a/drivers/i2c/busses/i2c-isa.c b/drivers/i2c/busses/i2c-isa.c index 5f33bc9c1e02..a2e75bc9178b 100644 --- a/drivers/i2c/busses/i2c-isa.c +++ b/drivers/i2c/busses/i2c-isa.c @@ -141,6 +141,7 @@ static int __init i2c_isa_init(void) sprintf(isa_adapter.dev.bus_id, "i2c-%d", isa_adapter.nr); isa_adapter.dev.driver = &i2c_adapter_driver; isa_adapter.dev.release = &i2c_adapter_dev_release; + isa_adapter.dev.class = &i2c_adapter_class; err = device_register(&isa_adapter.dev); if (err) { printk(KERN_ERR "i2c-isa: Failed to register device\n"); @@ -152,24 +153,10 @@ static int __init i2c_isa_init(void) goto exit_unregister; } - /* Add this adapter to the i2c_adapter class */ - memset(&isa_adapter.class_dev, 0x00, sizeof(struct class_device)); - isa_adapter.class_dev.dev = &isa_adapter.dev; - isa_adapter.class_dev.class = &i2c_adapter_class; - strlcpy(isa_adapter.class_dev.class_id, isa_adapter.dev.bus_id, - BUS_ID_SIZE); - err = class_device_register(&isa_adapter.class_dev); - if (err) { - printk(KERN_ERR "i2c-isa: Failed to register class device\n"); - goto exit_remove_name; - } - dev_dbg(&isa_adapter.dev, "%s registered\n", isa_adapter.name); return 0; -exit_remove_name: - device_remove_file(&isa_adapter.dev, &dev_attr_name); exit_unregister: init_completion(&isa_adapter.dev_released); /* Needed? */ device_unregister(&isa_adapter.dev); @@ -201,15 +188,12 @@ static void __exit i2c_isa_exit(void) /* Clean up the sysfs representation */ dev_dbg(&isa_adapter.dev, "Unregistering from sysfs\n"); init_completion(&isa_adapter.dev_released); - init_completion(&isa_adapter.class_dev_released); - class_device_unregister(&isa_adapter.class_dev); device_remove_file(&isa_adapter.dev, &dev_attr_name); device_unregister(&isa_adapter.dev); /* Wait for sysfs to drop all references */ dev_dbg(&isa_adapter.dev, "Waiting for sysfs completion\n"); wait_for_completion(&isa_adapter.dev_released); - wait_for_completion(&isa_adapter.class_dev_released); dev_dbg(&isa_adapter.dev, "%s unregistered\n", isa_adapter.name); } diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 21fe1406c8b4..40a744d73e8c 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -123,28 +123,9 @@ struct device_driver i2c_adapter_driver = { /* I2C bus adapters -- one roots each I2C or SMBUS segment */ -static void i2c_adapter_class_dev_release(struct class_device *dev) -{ - struct i2c_adapter *adap = class_dev_to_i2c_adapter(dev); - complete(&adap->class_dev_released); -} - -static ssize_t i2c_adapter_show_name(struct class_device *cdev, char *buf) -{ - struct i2c_adapter *adap = class_dev_to_i2c_adapter(cdev); - return sprintf(buf, "%s\n", adap->name); -} - -static struct class_device_attribute i2c_adapter_attrs[] = { - __ATTR(name, S_IRUGO, i2c_adapter_show_name, NULL), - { }, -}; - struct class i2c_adapter_class = { .owner = THIS_MODULE, .name = "i2c-adapter", - .class_dev_attrs = i2c_adapter_attrs, - .release = &i2c_adapter_class_dev_release, }; static ssize_t show_adapter_name(struct device *dev, struct device_attribute *attr, char *buf) @@ -223,6 +204,7 @@ int i2c_add_adapter(struct i2c_adapter *adap) sprintf(adap->dev.bus_id, "i2c-%d", adap->nr); adap->dev.driver = &i2c_adapter_driver; adap->dev.release = &i2c_adapter_dev_release; + adap->dev.class = &i2c_adapter_class; res = device_register(&adap->dev); if (res) goto out_list; @@ -230,15 +212,6 @@ int i2c_add_adapter(struct i2c_adapter *adap) if (res) goto out_unregister; - /* Add this adapter to the i2c_adapter class */ - memset(&adap->class_dev, 0x00, sizeof(struct class_device)); - adap->class_dev.dev = &adap->dev; - adap->class_dev.class = &i2c_adapter_class; - strlcpy(adap->class_dev.class_id, adap->dev.bus_id, BUS_ID_SIZE); - res = class_device_register(&adap->class_dev); - if (res) - goto out_remove_name; - dev_dbg(&adap->dev, "adapter [%s] registered\n", adap->name); /* inform drivers of new adapters */ @@ -253,8 +226,6 @@ out_unlock: mutex_unlock(&core_lists); return res; -out_remove_name: - device_remove_file(&adap->dev, &dev_attr_name); out_unregister: init_completion(&adap->dev_released); /* Needed? */ device_unregister(&adap->dev); @@ -314,15 +285,12 @@ int i2c_del_adapter(struct i2c_adapter *adap) /* clean up the sysfs representation */ init_completion(&adap->dev_released); - init_completion(&adap->class_dev_released); - class_device_unregister(&adap->class_dev); device_remove_file(&adap->dev, &dev_attr_name); device_unregister(&adap->dev); list_del(&adap->list); /* wait for sysfs to drop all references */ wait_for_completion(&adap->dev_released); - wait_for_completion(&adap->class_dev_released); /* free dynamically allocated bus id */ idr_remove(&i2c_adapter_idr, adap->nr); diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 9428092017e3..7a59dc656657 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -228,17 +228,14 @@ struct i2c_adapter { int timeout; int retries; struct device dev; /* the adapter device */ - struct class_device class_dev; /* the class device */ int nr; struct list_head clients; struct list_head list; char name[I2C_NAME_SIZE]; struct completion dev_released; - struct completion class_dev_released; }; #define dev_to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev) -#define class_dev_to_i2c_adapter(d) container_of(d, struct i2c_adapter, class_dev) static inline void *i2c_get_adapdata (struct i2c_adapter *dev) { |