[alsa-devel] [PATCH/RFC 00/14] ASoC: samsung: Add clk provider for I2S internal clocks

Sylwester Nawrocki s.nawrocki at samsung.com
Fri Dec 19 14:53:49 CET 2014


Hi Padma,

On 16/12/14 04:16, Padma Venkat wrote:
> Hi Sylwester,
> 
>> I need some more thought about interaction between the clk API calls on the
>> clocks being exposed and the ASoC calls into sound/soc/samsung/i2s.c.
>> I'm sending teh patches for review though to avoid any waste of time should
>> it turn out the direction taken is wrong.
>>
>> This whole series definitely needs more testing, so far I only tested it
>> on Odroid X2, with the I2S working in slave mode.
> 
> your patches looks good to me. I did basic playback and capture test
> of your patches with i2s in master mode on exynos7.  I also added
> secondary dai for testing and verified playback. But I think some more
> testing required to check the serialization of registers. Tried aplay
> with front dai in background and with secondary dai in the foreground.
> But due to one issue on my system backend playback not working.

Thanks a lot for testing! I also tested concurrent playback with the
primary and the secondary DAI (on Exynos4412), enabling the secondary DAI
with a bit hackish patch as in this branch:
git://linuxtv.org/snawrocki/samsung.git sound/odroidx2-simple-card-v2
I'm planning to do necessary changes to enable the secondary DAI properly
with simple-card, once we're done with this series.

-- 
Regards,
Sylwester


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