linux-kernel - Re: [PATCH] dmaengine: bam-dma: fill slave directions bit mask

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Message-ID: <20150304160213.GT2613@intel.com>
Date:	Wed, 4 Mar 2015 21:32:13 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Stanimir Varbanov <stanimir.varbanov@...aro.org>
Cc:	Dan Williams <dan.j.williams@...el.com>, dmaengine@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH] dmaengine: bam-dma: fill slave directions bit mask

On Wed, Mar 04, 2015 at 05:25:10PM +0200, Stanimir Varbanov wrote:
> This will avoid warning during async device registration.
> 
> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>
> ---
>  drivers/dma/qcom_bam_dma.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/dma/qcom_bam_dma.c b/drivers/dma/qcom_bam_dma.c
> index c3113e3..cc9e5ee 100644
> --- a/drivers/dma/qcom_bam_dma.c
> +++ b/drivers/dma/qcom_bam_dma.c
> @@ -1143,6 +1143,7 @@ static int bam_dma_probe(struct platform_device *pdev)
>  	dma_cap_set(DMA_SLAVE, bdev->common.cap_mask);
>  
>  	/* initialize dmaengine apis */
> +	bdev->common.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
>  	bdev->common.device_alloc_chan_resources = bam_alloc_chan;
>  	bdev->common.device_free_chan_resources = bam_free_chan;
>  	bdev->common.device_prep_slave_sg = bam_prep_slave_sg;
You need to fill other fields, src/dstn_addr_widths and
residue_granularity...

-- 
~Vinod

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