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Commit b23f2f94 authored by Hao Wu's avatar Hao Wu Committed by Greg Kroah-Hartman
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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: default avatarHao Wu <hao.wu@intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent c3d6450e

drivers/usb/gadget/composite.c

+8 −0
Original line number Diff line number Diff line
@@ -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;