From mboxrd@z Thu Jan  1 00:00:00 1970
From: arnd@arndb.de (Arnd Bergmann)
Date: Tue, 01 Dec 2015 11:28:32 +0100
Subject: [PATCH 3/4] dmaengine: qcom_bam_dma: use correct pipe FIFO size
In-Reply-To: <1448961299-15161-4-git-send-email-stanimir.varbanov@linaro.org>
References: <1448961299-15161-1-git-send-email-stanimir.varbanov@linaro.org>
 <1448961299-15161-4-git-send-email-stanimir.varbanov@linaro.org>
Message-ID: <1971752.Auss6gPApO@wuerfel>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

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