linux-kernel - Re: [PATCH] DMA: Fix allocation size for PL330 data buffer depth.

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Date:	Fri, 14 Nov 2014 12:33:01 +0000
From:	Liviu Dudau <Liviu.Dudau@....com>
To:	Vinod Koul <vinod.koul@...el.com>
Cc:	"dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
	Dan Williams <dan.j.williams@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	LAKML <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] DMA: Fix allocation size for PL330 data buffer depth.

On Wed, Nov 12, 2014 at 09:39:52AM +0000, Vinod Koul wrote:
> On Thu, Nov 06, 2014 at 05:20:12PM +0000, Liviu Dudau wrote:
> > The datasheet for PL330 says that the data buffer value in the CRD
> > register is 10bits wide. However, the value stored is "minus one",
> > which the driver corrects for. Maximum value that the data buffer
> > depth can have is 1024 lines, which requires 11 bits for storage.
> > 
> > While making updates I found printing the peripheral ID as a hex
> > value to be more useful as the datasheet shows the values that way.
> 
> Applied, thanks

Thanks!

> 
> Please snure you use the right subsytem name

Sorry about that. Just for clarity, it should've been 'dmaengine', right?

Best regards,
Liviu

> 
> -- 
> ~Vinod
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
> 

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