diff options
Diffstat (limited to 'drivers/usb/gadget/at91_udc.c')
| -rw-r--r-- | drivers/usb/gadget/at91_udc.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index b3bd22ef82b..eaa79c8a9b8 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -1377,6 +1377,12 @@ static irqreturn_t at91_udc_irq (int irq, void *_udc) { struct at91_udc *udc = _udc; u32 rescans = 5; + int disable_clock = 0; + + if (!udc->clocked) { + clk_on(udc); + disable_clock = 1; + } while (rescans--) { u32 status; @@ -1465,6 +1471,9 @@ static irqreturn_t at91_udc_irq (int irq, void *_udc) } } + if (disable_clock) + clk_off(udc); + return IRQ_HANDLED; } |