commit 47fd6f7c94e15eb5f97dd1cbb0427a46b03c8185
author Jaya Kumar <jayakumar.lkml@gmail.com> Tue Nov 18 02:32:36 2008 +0100
committer Russell King <rmk+kernel@arm.linux.org.uk> Sun Nov 23 15:49:59 2008 +0000
tree dc9842ab5729f971c21947232c86fb928d45125a
parent 844c6f6a36984c5fe1bcc2d68a88f2ed212d1eef

[ARM] 5335/1: pxa25x_udc: Fix is_vbus_present to return 1 or 0

the use of is_blah() suggests a 1 or 0 return. This assumption is made in
pxa25x_udc code such as:
	dev->vbus = is_vbus_present();
where dev->vbus is a bitfield. This fix allows pxa25x_udc_probe to correctly
detect vbus. Other changes were to make its use consistent in the rest of
the code.

Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

drivers/usb/gadget/pxa25x_udc.c

diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index da6e93c..2dbc0db 100644
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -141,7 +141,11 @@
 
 	if (mach->gpio_vbus) {
 		int value = gpio_get_value(mach->gpio_vbus);
-		return mach->gpio_vbus_inverted ? !value : value;
+
+		if (mach->gpio_vbus_inverted)
+			return !value;
+		else
+			return !!value;
 	}
 	if (mach->udc_is_connected)
 		return mach->udc_is_connected();
@@ -982,7 +986,7 @@
 	struct pxa25x_udc	*udc;
 
 	udc = container_of(_gadget, struct pxa25x_udc, gadget);
-	udc->vbus = (is_active != 0);
+	udc->vbus = is_active;
 	DMSG("vbus %s\n", is_active ? "supplied" : "inactive");
 	pullup(udc);
 	return 0;
@@ -1399,12 +1403,8 @@
 static irqreturn_t udc_vbus_irq(int irq, void *_dev)
 {
 	struct pxa25x_udc	*dev = _dev;
-	int			vbus = gpio_get_value(dev->mach->gpio_vbus);
 
-	if (dev->mach->gpio_vbus_inverted)
-		vbus = !vbus;
-
-	pxa25x_udc_vbus_session(&dev->gadget, vbus);
+	pxa25x_udc_vbus_session(&dev->gadget, is_vbus_present());
 	return IRQ_HANDLED;
 }