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path: root/drivers/w1/slaves/w1_ds2760.c
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Diffstat (limited to 'drivers/w1/slaves/w1_ds2760.c')
-rw-r--r--drivers/w1/slaves/w1_ds2760.c43
1 files changed, 6 insertions, 37 deletions
diff --git a/drivers/w1/slaves/w1_ds2760.c b/drivers/w1/slaves/w1_ds2760.c
index d9079d48d112..ffa37f773b3b 100644
--- a/drivers/w1/slaves/w1_ds2760.c
+++ b/drivers/w1/slaves/w1_ds2760.c
@@ -121,25 +121,14 @@ static const struct attribute_group *w1_ds2760_groups[] = {
NULL,
};
-static DEFINE_IDA(bat_ida);
-
static int w1_ds2760_add_slave(struct w1_slave *sl)
{
int ret;
- int id;
struct platform_device *pdev;
- id = ida_simple_get(&bat_ida, 0, 0, GFP_KERNEL);
- if (id < 0) {
- ret = id;
- goto noid;
- }
-
- pdev = platform_device_alloc("ds2760-battery", id);
- if (!pdev) {
- ret = -ENOMEM;
- goto pdev_alloc_failed;
- }
+ pdev = platform_device_alloc("ds2760-battery", PLATFORM_DEVID_AUTO);
+ if (!pdev)
+ return -ENOMEM;
pdev->dev.parent = &sl->dev;
ret = platform_device_add(pdev);
@@ -148,24 +137,19 @@ static int w1_ds2760_add_slave(struct w1_slave *sl)
dev_set_drvdata(&sl->dev, pdev);
- goto success;
+ return 0;
pdev_add_failed:
platform_device_put(pdev);
-pdev_alloc_failed:
- ida_simple_remove(&bat_ida, id);
-noid:
-success:
+
return ret;
}
static void w1_ds2760_remove_slave(struct w1_slave *sl)
{
struct platform_device *pdev = dev_get_drvdata(&sl->dev);
- int id = pdev->id;
platform_device_unregister(pdev);
- ida_simple_remove(&bat_ida, id);
}
static struct w1_family_ops w1_ds2760_fops = {
@@ -178,28 +162,13 @@ static struct w1_family w1_ds2760_family = {
.fid = W1_FAMILY_DS2760,
.fops = &w1_ds2760_fops,
};
-
-static int __init w1_ds2760_init(void)
-{
- pr_info("1-Wire driver for the DS2760 battery monitor chip - (c) 2004-2005, Szabolcs Gyurko\n");
- ida_init(&bat_ida);
- return w1_register_family(&w1_ds2760_family);
-}
-
-static void __exit w1_ds2760_exit(void)
-{
- w1_unregister_family(&w1_ds2760_family);
- ida_destroy(&bat_ida);
-}
+module_w1_family(w1_ds2760_family);
EXPORT_SYMBOL(w1_ds2760_read);
EXPORT_SYMBOL(w1_ds2760_write);
EXPORT_SYMBOL(w1_ds2760_store_eeprom);
EXPORT_SYMBOL(w1_ds2760_recall_eeprom);
-module_init(w1_ds2760_init);
-module_exit(w1_ds2760_exit);
-
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Szabolcs Gyurko <szabolcs.gyurko@tlt.hu>");
MODULE_DESCRIPTION("1-wire Driver Dallas 2760 battery monitor chip");