linux-kernel - Re: [PATCH V3 4/4] dma: add Qualcomm Technologies HIDMA channel driver

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Date:	Mon, 9 Nov 2015 00:00:32 +0200
From:	Andy Shevchenko <andy.shevchenko@...il.com>
To:	Sinan Kaya <okaya@...eaurora.org>
Cc:	dmaengine <dmaengine@...r.kernel.org>, timur@...eaurora.org,
	cov@...eaurora.org, jcm@...hat.com,
	Andy Gross <agross@...eaurora.org>,
	linux-arm-msm@...r.kernel.org,
	linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Vinod Koul <vinod.koul@...el.com>,
	Dan Williams <dan.j.williams@...el.com>,
	devicetree <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V3 4/4] dma: add Qualcomm Technologies HIDMA channel driver

On Sun, Nov 8, 2015 at 11:51 PM, Sinan Kaya <okaya@...eaurora.org> wrote:
>
>
> On 11/8/2015 3:47 PM, Andy Shevchenko wrote:
>>>
>>> +       trca_resource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>>> >+       if (!trca_resource) {
>>> >+               rc = -ENODEV;
>>> >+               goto bailout;
>>> >+       }
>>
>> Why did you ignore my comment about this block?
>> Remove that condition entirely.
>>
>>> >+
>>> >+       trca = devm_ioremap_resource(&pdev->dev, trca_resource);
>>> >+       if (IS_ERR(trca)) {
>>> >+               rc = -ENOMEM;
>>> >+               goto bailout;
>>> >+       }
>
>
> Sorry, I didn't quite get your comment. I thought you wanted to see
> platform_get_resource and devm_ioremap_resource together.
>
> Which one do you want me to remove?

At the end you would have something like

res = platform_get_resource();
addr = devm_ioremap_resources();
if (!addr) {
…
}

-- 
With Best Regards,
Andy Shevchenko
--
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