This is the v2 patch, fixed comment from Sergei.
>From 77a644b2dee131b237a1126c94835ba4a1f30fbf Mon Sep 17 00:00:00 2001
From: Hao Wu <hao.wu@xxxxxxxxx>
Date: Mon, 29 Nov 2010 15:05:56 +0800
Subject: [PATCH] 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: Hao Wu <hao.wu@xxxxxxxxx>
---
drivers/usb/gadget/composite.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 7b5cc16..2874451 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -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;
--
1.6.0.6
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
