diff options
Diffstat (limited to 'drivers/usb/musb/cppi_dma.c')
| -rw-r--r-- | drivers/usb/musb/cppi_dma.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c index ef2332a9941d..a44a450c860d 100644 --- a/drivers/usb/musb/cppi_dma.c +++ b/drivers/usb/musb/cppi_dma.c @@ -1154,8 +1154,11 @@ irqreturn_t cppi_interrupt(int irq, void *dev_id) struct musb_hw_ep *hw_ep = NULL; u32 rx, tx; int i, index; + unsigned long flags; cppi = container_of(musb->dma_controller, struct cppi, controller); + if (cppi->irq) + spin_lock_irqsave(&musb->lock, flags); tibase = musb->ctrl_base; @@ -1285,6 +1288,9 @@ irqreturn_t cppi_interrupt(int irq, void *dev_id) /* write to CPPI EOI register to re-enable interrupts */ musb_writel(tibase, DAVINCI_CPPI_EOI_REG, 0); + if (cppi->irq) + spin_unlock_irqrestore(&musb->lock, flags); + return IRQ_HANDLED; } |