On Thu, Jun 26, 2014 at 08:10:12PM +0200, Andrew Lunn wrote:
On Thu, Jun 26, 2014 at 03:22:31PM +0100, Russell King - ARM Linux wrote:
Mark,
Here are a set of patches I've had for a while as part of my DPCM work. I think it's worth getting these merged.
Hi Russell, Mark
I tested simple playback of WAV and MP3 files on a Kirkwood based HP T5325 machine. No obvious regressions.
Tested-by: Andrew Lunn andrew@lunn.ch
Patch 7 adds NO_PERIOD_WAKEUP support for kirkwood, permitting interrupt-less operation.
When using mpg123 to play back mp3 files, i get about 9 interrupts per second for kirkwood-i2s. Does this sound right?
Whether this feature is taken advantage of depends on the application. For example, with pulseaudio, I get:
21: 0 main-interrupt-ctrl 21 kirkwood-i2s