From: vinod.koul@intel.com (Vinod Koul)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] DMA: Fix allocation size for PL330 data buffer depth.
Date: Wed, 12 Nov 2014 15:09:52 +0530 [thread overview]
Message-ID: <20141112093952.GD24582@intel.com> (raw)
In-Reply-To: <1415294412-13818-1-git-send-email-Liviu.Dudau@arm.com>
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
Please snure you use the right subsytem name
--
~Vinod
WARNING: multiple messages have this Message-ID (diff)
From: Vinod Koul <vinod.koul@intel.com>
To: Liviu Dudau <Liviu.Dudau@arm.com>
Cc: Dan Williams <dan.j.williams@intel.com>,
dmaengine@vger.kernel.org,
LAKML <linux-arm-kernel@lists.infradead.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] DMA: Fix allocation size for PL330 data buffer depth.
Date: Wed, 12 Nov 2014 15:09:52 +0530 [thread overview]
Message-ID: <20141112093952.GD24582@intel.com> (raw)
In-Reply-To: <1415294412-13818-1-git-send-email-Liviu.Dudau@arm.com>
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
Please snure you use the right subsytem name
--
~Vinod
next prev parent reply other threads:[~2014-11-12 9:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-06 17:20 [PATCH] DMA: Fix allocation size for PL330 data buffer depth Liviu Dudau
2014-11-06 17:20 ` Liviu Dudau
2014-11-12 9:39 ` Vinod Koul [this message]
2014-11-12 9:39 ` Vinod Koul
2014-11-14 12:33 ` Liviu Dudau
2014-11-14 12:33 ` Liviu Dudau
2014-12-05 17:40 ` Vinod Koul
2014-12-05 17:40 ` Vinod Koul
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