diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dma/sun6i-dma.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c index f47a326dd..04fe1f504 100644 --- a/drivers/dma/sun6i-dma.c +++ b/drivers/dma/sun6i-dma.c @@ -354,8 +354,10 @@ static size_t sun6i_get_chan_size(struct sun6i_pchan *pchan) size_t bytes; dma_addr_t pos; - pos = readl(pchan->base + DMA_CHAN_LLI_ADDR); - bytes = readl(pchan->base + DMA_CHAN_CUR_CNT); + do { + pos = readl(pchan->base + DMA_CHAN_LLI_ADDR); + bytes = readl(pchan->base + DMA_CHAN_CUR_CNT); + } while (pos != readl(pchan->base + DMA_CHAN_LLI_ADDR)); if (pos == LLI_LAST_ITEM) return bytes; |