linux-kernel - Re: [Patch v4 2/2] dmaengine: Add ADM driver

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Date:	Mon, 16 Mar 2015 08:15:26 -0000
From:	sricharan@...eaurora.org
To:	"Andy Gross" <agross@...eaurora.org>
Cc:	"Vinod Koul" <vinod.koul@...el.com>, devicetree@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
	"Bjorn Andersson" <bjorn.andersson@...ymobile.com>,
	"Kumar Gala" <galak@...eaurora.org>, dmaengine@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [Patch v4 2/2] dmaengine: Add ADM driver

Hi,

<snip>
>
>>
>> > +static int adm_get_blksize(unsigned int burst)
>> > +{
>> > +	int ret;
>> > +
>> > +	switch (burst) {
>> > +	case 16:
>> > +		ret = 0;
>> > +		break;
>> > +	case 32:
>> > +		ret = 1;
>> > +		break;
>> > +	case 64:
>> > +		ret = 2;
>> > +		break;
>> > +	case 128:
>> > +		ret = 3;
>> > +		break;
>> > +	case 192:
>> > +		ret = 4;
>> > +		break;
>> > +	case 256:
>> > +		ret = 5;
>> > +		break;
>> ffs(burst>>4) ?
>
> that should work nicely.  thanks.
>
  Will not work for 192, 256 ?

Regards,
 Sricharan

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