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authorArnd Bergmann <arnd@arndb.de>2011-11-29 14:50:17 +0000
committerArnd Bergmann <arnd@arndb.de>2011-11-29 14:50:17 +0000
commit98014be39bda8277a5ad130bb274ed6eb18b74df (patch)
tree974620a47c9350ff9b3c06ffd2b49470bbda72ab /drivers/usb/host/ohci-at91.c
parent55135dfbf3dd83cb3e98deed8271b62d188404e1 (diff)
parent6e2a587eb99267367409097b70cb2d61b09e5269 (diff)
downloadlinux-98014be39bda8277a5ad130bb274ed6eb18b74df.tar.bz2
Merge branch 'defconfigs-for-arnd' of git://git.linaro.org/people/triad/linux-stericsson into fixes
Diffstat (limited to 'drivers/usb/host/ohci-at91.c')
-rw-r--r--drivers/usb/host/ohci-at91.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index ba3a46b78b75..95a9fec38e89 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -223,6 +223,9 @@ static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int
if (port < 0 || port >= 2)
return;
+ if (pdata->vbus_pin[port] <= 0)
+ return;
+
gpio_set_value(pdata->vbus_pin[port], !pdata->vbus_pin_inverted ^ enable);
}
@@ -231,6 +234,9 @@ static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port)
if (port < 0 || port >= 2)
return -EINVAL;
+ if (pdata->vbus_pin[port] <= 0)
+ return -EINVAL;
+
return gpio_get_value(pdata->vbus_pin[port]) ^ !pdata->vbus_pin_inverted;
}