提交 b23f2f94 编写于 作者: H Hao Wu 提交者: Greg Kroah-Hartman

usb: composite gadget: set vbus_draw current limitation during suspend

This patch modifies the composite gadget to set vbus_draw current limitation
during suspend state. This current limitation in suspend state shouldn't be
more than 2.5mA
Signed-off-by: NHao Wu <hao.wu@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
上级 c3d6450e
......@@ -1188,6 +1188,8 @@ composite_suspend(struct usb_gadget *gadget)
composite->suspend(cdev);
cdev->suspended = 1;
usb_gadget_vbus_draw(gadget, 2);
}
static void
......@@ -1195,6 +1197,7 @@ composite_resume(struct usb_gadget *gadget)
{
struct usb_composite_dev *cdev = get_gadget_data(gadget);
struct usb_function *f;
u8 maxpower;
/* REVISIT: should we have config level
* suspend/resume callbacks?
......@@ -1207,6 +1210,11 @@ composite_resume(struct usb_gadget *gadget)
if (f->resume)
f->resume(f);
}
maxpower = cdev->config->bMaxPower;
usb_gadget_vbus_draw(gadget, maxpower ?
(2 * maxpower) : CONFIG_USB_GADGET_VBUS_DRAW);
}
cdev->suspended = 0;
......
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