Hi,
On 09/13/2012 06:27 PM, Lars-Peter Clausen wrote:
On 09/13/2012 03:37 PM, Peter Ujfalusi wrote:
The dmaengine_prep_dma_cyclic() function primarily used by audio for cyclic
transfer required by ALSA.
With this new parameter it is going to be possible to enable the
On 09/13/2012 06:38 PM, Russell King - ARM Linux wrote:
On Thu, Sep 13, 2012 at 05:27:09PM +0200, Lars-Peter Clausen wrote:
Hm... Do you think it would work as well if we implement this by setting the
callback for the descriptor to NULL? If the callback is NULL there is
nothing to at the end
On 09/14/2012 06:26 AM, Vinod Koul wrote:
On Thu, 2012-09-13 at 17:27 +0200, Lars-Peter Clausen wrote:
Hi,
Hm... Do you think it would work as well if we implement this by
setting the
callback for the descriptor to NULL? If the callback is NULL there is
nothing to at the end of a
On 09/14/2012 05:26 AM, Vinod Koul wrote:
On Thu, 2012-09-13 at 17:27 +0200, Lars-Peter Clausen wrote:
Hi,
Hm... Do you think it would work as well if we implement this by
setting the
callback for the descriptor to NULL? If the callback is NULL there is
nothing to at the end of a
On Fri, 2012-09-14 at 10:13 +0200, Lars-Peter Clausen wrote:
On 09/14/2012 05:26 AM, Vinod Koul wrote:
On Thu, 2012-09-13 at 17:27 +0200, Lars-Peter Clausen wrote:
Hi,
Hm... Do you think it would work as well if we implement this by
setting the
callback for the descriptor to NULL? If
Hi,
On 09/14/2012 11:50 AM, Vinod Koul wrote:
Well, the idea was that the driver would disable interrupts if there is no
callback to call, since there would be nothing to do in the interrupt
handler anyway. But I guess the flags approach should work fine as well.
Yes we _could_ do that, but
On Fri, 2012-09-14 at 12:28 +0300, Peter Ujfalusi wrote:
Hi,
On 09/14/2012 11:50 AM, Vinod Koul wrote:
Well, the idea was that the driver would disable interrupts if there is no
callback to call, since there would be nothing to do in the interrupt
handler anyway. But I guess the flags
On Fri, Sep 14, 2012 at 12:28:28PM +0300, Peter Ujfalusi wrote:
I'm not sure about which flags should ASoC set for the two case we are going
to have. I think it should be something like this:
unsigned long flags = DMA_CTRL_ACK;
if (!substream-runtime-no_period_wakeup)
flags |=
The dmaengine_prep_dma_cyclic() function primarily used by audio for cyclic
transfer required by ALSA.
With this new parameter it is going to be possible to enable the
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP mode on platforms where it is possible.
This patch only changes the public API first. Followup
On 09/13/2012 03:37 PM, Peter Ujfalusi wrote:
The dmaengine_prep_dma_cyclic() function primarily used by audio for cyclic
transfer required by ALSA.
With this new parameter it is going to be possible to enable the
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP mode on platforms where it is possible.
This
On Thu, Sep 13, 2012 at 05:27:09PM +0200, Lars-Peter Clausen wrote:
Hm... Do you think it would work as well if we implement this by setting the
callback for the descriptor to NULL? If the callback is NULL there is
nothing to at the end of a transfer/period and the dma engine driver may
choose
On Thu, 2012-09-13 at 17:27 +0200, Lars-Peter Clausen wrote:
Hi,
Hm... Do you think it would work as well if we implement this by
setting the
callback for the descriptor to NULL? If the callback is NULL there is
nothing to at the end of a transfer/period and the dma engine driver
may
On Thu, 2012-09-13 at 16:38 +0100, Russell King - ARM Linux wrote:
On Thu, Sep 13, 2012 at 05:27:09PM +0200, Lars-Peter Clausen wrote:
Hm... Do you think it would work as well if we implement this by setting the
callback for the descriptor to NULL? If the callback is NULL there is
nothing
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