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-rw-r--r--drivers/usb/gadget/pxa2xx_udc.c9
-rw-r--r--include/asm-arm/mach/udc_pxa2xx.h2
2 files changed, 9 insertions, 2 deletions
diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c
index 4abf9d26d615..8bd9ce26bd95 100644
--- a/drivers/usb/gadget/pxa2xx_udc.c
+++ b/drivers/usb/gadget/pxa2xx_udc.c
@@ -127,8 +127,10 @@ static int is_vbus_present(void)
127{ 127{
128 struct pxa2xx_udc_mach_info *mach = the_controller->mach; 128 struct pxa2xx_udc_mach_info *mach = the_controller->mach;
129 129
130 if (mach->gpio_vbus) 130 if (mach->gpio_vbus) {
131 return gpio_get_value(mach->gpio_vbus); 131 int value = gpio_get_value(mach->gpio_vbus);
132 return mach->gpio_vbus_inverted ? !value : value;
133 }
132 if (mach->udc_is_connected) 134 if (mach->udc_is_connected)
133 return mach->udc_is_connected(); 135 return mach->udc_is_connected();
134 return 1; 136 return 1;
@@ -1398,6 +1400,9 @@ static irqreturn_t udc_vbus_irq(int irq, void *_dev)
1398 struct pxa2xx_udc *dev = _dev; 1400 struct pxa2xx_udc *dev = _dev;
1399 int vbus = gpio_get_value(dev->mach->gpio_vbus); 1401 int vbus = gpio_get_value(dev->mach->gpio_vbus);
1400 1402
1403 if (dev->mach->gpio_vbus_inverted)
1404 vbus = !vbus;
1405
1401 pxa2xx_udc_vbus_session(&dev->gadget, vbus); 1406 pxa2xx_udc_vbus_session(&dev->gadget, vbus);
1402 return IRQ_HANDLED; 1407 return IRQ_HANDLED;
1403} 1408}
diff --git a/include/asm-arm/mach/udc_pxa2xx.h b/include/asm-arm/mach/udc_pxa2xx.h
index ff0a95715a07..f191e147ea90 100644
--- a/include/asm-arm/mach/udc_pxa2xx.h
+++ b/include/asm-arm/mach/udc_pxa2xx.h
@@ -19,7 +19,9 @@ struct pxa2xx_udc_mach_info {
19 * with on-chip GPIOs not Lubbock's wierd hardware, can have a sane 19 * with on-chip GPIOs not Lubbock's wierd hardware, can have a sane
20 * VBUS IRQ and omit the methods above. Store the GPIO number 20 * VBUS IRQ and omit the methods above. Store the GPIO number
21 * here; for GPIO 0, also mask in one of the pxa_gpio_mode() bits. 21 * here; for GPIO 0, also mask in one of the pxa_gpio_mode() bits.
22 * Note that sometimes the signals go through inverters...
22 */ 23 */
24 bool gpio_vbus_inverted;
23 u16 gpio_vbus; /* high == vbus present */ 25 u16 gpio_vbus; /* high == vbus present */
24 u16 gpio_pullup; /* high == pullup activated */ 26 u16 gpio_pullup; /* high == pullup activated */
25}; 27};