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path: root/drivers/usb/gadget/composite.c
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Diffstat (limited to 'drivers/usb/gadget/composite.c')
-rw-r--r--drivers/usb/gadget/composite.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 0f2d1e98481f..10f8fde7d6a6 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -744,6 +744,11 @@ static int set_config(struct usb_composite_dev *cdev,
/* when we return, be sure our power usage is valid */
power = c->MaxPower ? c->MaxPower : CONFIG_USB_GADGET_VBUS_DRAW;
done:
+ if (power <= USB_SELF_POWER_VBUS_MAX_DRAW)
+ usb_gadget_set_selfpowered(gadget);
+ else
+ usb_gadget_clear_selfpowered(gadget);
+
usb_gadget_vbus_draw(gadget, power);
if (result >= 0 && cdev->delayed_status)
result = USB_GADGET_DELAYED_STATUS;
@@ -2156,6 +2161,7 @@ void composite_suspend(struct usb_gadget *gadget)
cdev->suspended = 1;
+ usb_gadget_set_selfpowered(gadget);
usb_gadget_vbus_draw(gadget, 2);
}
@@ -2179,6 +2185,9 @@ void composite_resume(struct usb_gadget *gadget)
maxpower = cdev->config->MaxPower;
+ if (maxpower > USB_SELF_POWER_VBUS_MAX_DRAW)
+ usb_gadget_clear_selfpowered(gadget);
+
usb_gadget_vbus_draw(gadget, maxpower ?
maxpower : CONFIG_USB_GADGET_VBUS_DRAW);
}