linux-kernel - Re: [PATCH V3 1/2] dmaengine: qcom

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Message-ID: <20170718161956.GV3053@localhost>
Date:   Tue, 18 Jul 2017 21:49:57 +0530
From:   Vinod Koul <vinod.koul@...el.com>
To:     Sinan Kaya <okaya@...eaurora.org>
Cc:     dmaengine@...r.kernel.org, timur@...eaurora.org,
        linux-arm-msm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Dan Williams <dan.j.williams@...el.com>,
        linux-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V3 1/2] dmaengine: qcom_hidma: introduce memset support

On Thu, Jun 29, 2017 at 10:30:57PM -0400, Sinan Kaya wrote:

> @@ -410,7 +410,40 @@ static int hidma_alloc_chan_resources(struct dma_chan *dmach)
>  		return NULL;
>  
>  	hidma_ll_set_transfer_params(mdma->lldev, mdesc->tre_ch,
> -				     src, dest, len, flags);
> +				     src, dest, len, flags,
> +				     HIDMA_TRE_MEMCPY);
> +
> +	/* Place descriptor in prepared list */
> +	spin_lock_irqsave(&mchan->lock, irqflags);
> +	list_add_tail(&mdesc->node, &mchan->prepared);
> +	spin_unlock_irqrestore(&mchan->lock, irqflags);

This change looks suspicious, cna you clarify the need to do this?


-- 
~Vinod