The IRQ register number is computed, but this number was not used and the register was the one indexed by the channel index instead. Then, only the first DMA channel was working.
Acked-by: Maxime Ripard <[email protected]> Signed-off-by: Jean-Francois Moine <[email protected]> --- drivers/dma/sun6i-dma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c index 2db12e4..2ec320d 100644 --- a/drivers/dma/sun6i-dma.c +++ b/drivers/dma/sun6i-dma.c @@ -381,9 +381,9 @@ static int sun6i_dma_start_desc(struct sun6i_vchan *vchan) irq_reg = pchan->idx / DMA_IRQ_CHAN_NR; irq_offset = pchan->idx % DMA_IRQ_CHAN_NR; - irq_val = readl(sdev->base + DMA_IRQ_EN(irq_offset)); + irq_val = readl(sdev->base + DMA_IRQ_EN(irq_reg)); irq_val |= DMA_IRQ_QUEUE << (irq_offset * DMA_IRQ_CHAN_WIDTH); - writel(irq_val, sdev->base + DMA_IRQ_EN(irq_offset)); + writel(irq_val, sdev->base + DMA_IRQ_EN(irq_reg)); writel(pchan->desc->p_lli, pchan->base + DMA_CHAN_LLI_ADDR); writel(DMA_CHAN_ENABLE_START, pchan->base + DMA_CHAN_ENABLE); -- 2.8.1 -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
