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Commit 128fe7e9 authored by Jean-Francois Moine's avatar Jean-Francois Moine Committed by Vinod Koul
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dmaengine: sun6i: Fix the access of the IRQ register 



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: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: default avatarJean-Francois Moine <moinejf@free.fr>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent f55532a0

drivers/dma/sun6i-dma.c

+2 −2
Original line number Diff line number Diff line
@@ -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);