usb: udc-core: add is_selfpowered sys entry

The user can read it through sys entry.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c
index e31d574d8860..5a81cb086b99 100644
--- a/drivers/usb/gadget/udc/udc-core.c
+++ b/drivers/usb/gadget/udc/udc-core.c
@@ -564,6 +564,7 @@ static USB_UDC_ATTR(is_a_peripheral);
 static USB_UDC_ATTR(b_hnp_enable);
 static USB_UDC_ATTR(a_hnp_support);
 static USB_UDC_ATTR(a_alt_hnp_support);
+static USB_UDC_ATTR(is_selfpowered);
 
 static struct attribute *usb_udc_attrs[] = {
         &dev_attr_srp.attr,
@@ -577,6 +578,7 @@ static struct attribute *usb_udc_attrs[] = {
         &dev_attr_b_hnp_enable.attr,
         &dev_attr_a_hnp_support.attr,
         &dev_attr_a_alt_hnp_support.attr,
+        &dev_attr_is_selfpowered.attr,
         NULL,
 };