Re: [PATCH 1/2] dma: pl330: improve pl330_tx_status() function

From: Padma Venkat
Date: Wed Nov 26 2014 - 05:00:41 EST


Hi Robert,

I tested your patches on exynos5420 peach-pit with audio playback and
got some underrun error.
I posted a similar patch in the below link.

https://patchwork.kernel.org/patch/5384551/

Please do review the same.

Thanks
Padma

> On 25.11.2014 13:25, Robert Baldyga wrote:
>> This patch adds possibility to read residue of DMA transfer. It's useful
>> when we want to know how many bytes have been transfered before we
>> terminate channel. It can take place, for example, on timeout interrupt.
>>
>> Signed-off-by: Lukasz Czerwinski <l.czerwinski@xxxxxxxxxxx>
>> Signed-off-by: Robert Baldyga <r.baldyga@xxxxxxxxxxx>
>> ---
>> drivers/dma/pl330.c | 61
>> ++++++++++++++++++++++++++++++++++++++++++++++++++++-
>> 1 file changed, 60 insertions(+), 1 deletion(-)
>>
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