linux-kernel - Re: [PATCH] mtd: nand: pxa3xx-nand: switch to dmaengine

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Message-ID: <CAAEAJfAz+WRjc1dPjbZ5hEjGoE-FZkUA=bexzUsGpaP2TMNo0A@mail.gmail.com>
Date:	Sat, 5 Sep 2015 17:11:11 -0300
From:	Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
To:	Robert Jarzmik <robert.jarzmik@...e.fr>
Cc:	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mtd: nand: pxa3xx-nand: switch to dmaengine

On 5 September 2015 at 17:02, Robert Jarzmik <robert.jarzmik@...e.fr> wrote:
> Ezequiel Garcia <ezequiel@...guardiasur.com.ar> writes:
>
>> Robert,
>>
>> Just a couple of minor comments.
>>> +    dma_unmap_sg(info->dma_chan->device->dev,
>>> +                 &info->sg, 1, info->dma_dir);
>>
>> Unneeded line breaking.
> Indeed, for v2.
>
>>> +            r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
>>> +            if (r == NULL) {
>>> +                    dev_err(&pdev->dev,
>>> +                            "no resource defined for cmd DMA\n");
>>> +                    ret = -ENXIO;
>>> +                    goto fail_disable_clk;
>>> +            }
>>> +            info->drcmr_cmd = r->start;
>>
>> AFAICS, you only do data DMA, so this command resource can go away.
>> If you want to keep it for now and remove it as a follow up patch,
>> that's fine.
> Yeah, keep it in this patch, and change in a future patch (ie. keep current
> behavior).
>
>> Other than this minor stuff:
>>
>> Reviewed-by: Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
>> Tested-by: Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
> Thanks, I'll add that in v2.
>
>> Tested on Armada 370 to make sure it doesn't cause any regressions.
> Good. Was it on top of linux-next or linux master ?
>

linux-next
-- 
Ezequiel García, VanguardiaSur
www.vanguardiasur.com.ar
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