Re: [PATCH 3/4] dmaengine: qcom_bam_dma: use correct pipe FIFO size

From: Arnd Bergmann
Date: Tue Dec 01 2015 - 05:29:25 EST


On Tuesday 01 December 2015 11:14:58 Stanimir Varbanov wrote:
>
> diff --git a/drivers/dma/qcom_bam_dma.c b/drivers/dma/qcom_bam_dma.c
> index 0f06f3b7a72b..6d290de9ab2b 100644
> --- a/drivers/dma/qcom_bam_dma.c
> +++ b/drivers/dma/qcom_bam_dma.c
> @@ -458,7 +458,7 @@ static void bam_chan_init_hw(struct bam_chan *bchan,
> */
> writel_relaxed(ALIGN(bchan->fifo_phys, sizeof(struct bam_desc_hw)),
> bam_addr(bdev, bchan->id, BAM_P_DESC_FIFO_ADDR));
> - writel_relaxed(BAM_DESC_FIFO_SIZE,
> + writel_relaxed(BAM_MAX_DATA_SIZE,
> bam_addr(bdev, bchan->id, BAM_P_FIFO_SIZES));
>
> /* enable the per pipe interrupts, enable EOT, ERR, and INT irqs */

I'm looking at that now and fail to see why these have to use writel_relaxed().

Could you add a patch to use readl/writel by default?

Arnd
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