[alsa-devel] [PATCH] ASoC: Add delay information for Samsung IISv2 DAIs

jassi brar jassisinghbrar at gmail.com
Thu Mar 4 14:38:39 CET 2010

On Thu, Mar 4, 2010 at 10:24 PM, Mark Brown
<broonie at opensource.wolfsonmicro.com> wrote:
> On Thu, Mar 04, 2010 at 10:18:59PM +0900, jassi brar wrote:
>> On Thu, Mar 4, 2010 at 9:05 PM, Mark Brown
>> > +static long s3c2412_i2s_delay(struct snd_pcm_substream *substream,
>> > + ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ??struct snd_soc_dai *dai)
>> return type snd_pcm_sframes_t ?
> Meh, yeah.  It's actually the same type underneath.
of course, but still...

>> I am trying to make functions in s3c-i2s-v2.c re-entrant as much as possible,
>> 'delay' too seems to be a good candidate.
> Could you expand on what you mean by this?
I mean, 'delay' is such a trival func that it can perhaps do
controller specific stuff
after checking some flag(new) in s3c_i2sv2_info.

> All we're doing here is
> directly reporting a value read from a memory mapped register so there's
> nothing to be worried about from a locking point of view unless there
> were a multi-core system and the bus to the IP needed some locking,
> which is vanishingly unlikely to ever happen.
As I said, I am OK. I just see this func being modified soon to handle
i2sv4 too.

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