extcon: Modify the device name as extcon[X] for sysfs
This patch modify the device name as extcon[X] for sysfs by using the 'extcon'
prefix word instead of separate device name. On user-space aspect, user would
find the some extcon drvier with extcon[X] pattern. So, this patch modify the
device name as following:
- /sys/class/extcon/[device name] -> /sys/class/extcon/extcon[X]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index 4c9f165..1a93229 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -163,7 +163,7 @@
return ret;
}
- return sprintf(buf, "%s\n", dev_name(&edev->dev));
+ return sprintf(buf, "%s\n", edev->name);
}
static DEVICE_ATTR_RO(name);
@@ -701,6 +701,7 @@
int extcon_dev_register(struct extcon_dev *edev)
{
int ret, index = 0;
+ static atomic_t edev_no = ATOMIC_INIT(-1);
if (!extcon_class) {
ret = create_extcon_class();
@@ -725,13 +726,14 @@
edev->dev.class = extcon_class;
edev->dev.release = extcon_dev_release;
- edev->name = edev->name ? edev->name : dev_name(edev->dev.parent);
+ edev->name = dev_name(edev->dev.parent);
if (IS_ERR_OR_NULL(edev->name)) {
dev_err(&edev->dev,
"extcon device name is null\n");
return -EINVAL;
}
- dev_set_name(&edev->dev, "%s", edev->name);
+ dev_set_name(&edev->dev, "extcon%lu",
+ (unsigned long)atomic_inc_return(&edev_no));
if (edev->max_supported) {
char buf[10];