bcm2835-dma: Avoid losing CS flags after interrupt

Signed-off-by: Dom Cobley <popcornmix@gmail.com>

diff --git a/drivers/dma/bcm2835-dma.c b/drivers/dma/bcm2835-dma.c
index 0cbfa9d559a27e74a4dd0706eb4f1bfdce7aa8a6..9878d1bed5893782999593b9a54c835c639c7e35 100644 (file)
--- a/drivers/dma/bcm2835-dma.c
+++ b/drivers/dma/bcm2835-dma.c
@@ -704,7 +704,7 @@ static irqreturn_t bcm2835_dma_callback(int irq, void *data)
         * if this IRQ handler is threaded.) If the channel is finished, it
         * will remain idle despite the ACTIVE flag being set.
         */
-       writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE,
+       writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE | BCM2835_DMA_CS_FLAGS(c->dreq),
               c->chan_base + BCM2835_DMA_CS);
 
        d = c->desc;