diff options
| author | Bin Meng <bmeng.cn@gmail.com> | 2017-07-19 21:51:11 +0800 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2017-07-28 23:34:30 +0200 |
| commit | 46c1d49330fe21b3f9d2f7577ee4268248e7b666 (patch) | |
| tree | 68584c48afb9880819e0b16eb985f047ce047092 /common/usb_hub.c | |
| parent | a199a7244899f6385035459cbc62409bd9bbcc23 (diff) | |
usb: hub: Add a new API to test if a hub device is root hub
Sometimes we need know if a given hub device is root hub or not.
Add a new API to test this. This removes the xHCI driver's own
version is_root_hub() and change to use the new API.
While we are here, remove the unused/commented out get_usb_device()
in the xHCI driver too.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'common/usb_hub.c')
| -rw-r--r-- | common/usb_hub.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/common/usb_hub.c b/common/usb_hub.c index 086b155cb7..a8c2f56006 100644 --- a/common/usb_hub.c +++ b/common/usb_hub.c @@ -67,6 +67,16 @@ static inline bool usb_hub_is_superspeed(struct usb_device *hdev) return hdev->descriptor.bDeviceProtocol == 3; } +#ifdef CONFIG_DM_USB +bool usb_hub_is_root_hub(struct udevice *hub) +{ + if (device_get_uclass_id(hub->parent) != UCLASS_USB_HUB) + return true; + + return false; +} +#endif + static int usb_get_hub_descriptor(struct usb_device *dev, void *data, int size) { unsigned short dtype = USB_DT_HUB; |