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authorJaya Kumar <jayakumar.lkml@gmail.com>2008-11-18 01:32:36 (GMT)
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-11-23 15:49:59 (GMT)
commit47fd6f7c94e15eb5f97dd1cbb0427a46b03c8185 (patch)
treedc9842ab5729f971c21947232c86fb928d45125a /drivers
parent844c6f6a36984c5fe1bcc2d68a88f2ed212d1eef (diff)
downloadlinux-fsl-qoriq-47fd6f7c94e15eb5f97dd1cbb0427a46b03c8185.tar.xz
[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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/gadget/pxa25x_udc.c14
1 files changed, 7 insertions, 7 deletions
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 @@ static int is_vbus_present(void)
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 @@ static int pxa25x_udc_vbus_session(struct usb_gadget *_gadget, int is_active)
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 @@ lubbock_vbus_irq(int irq, void *_dev)
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;
}